{"id":597,"date":"2022-05-26T20:15:42","date_gmt":"2022-05-26T12:15:42","guid":{"rendered":"https:\/\/blog.lijiajia.top\/?p=597"},"modified":"2026-06-19T17:44:10","modified_gmt":"2026-06-19T09:44:10","slug":"redis6%e5%ad%a6%e4%b9%a0","status":"publish","type":"post","link":"https:\/\/blog.ttwow.top\/?p=597","title":{"rendered":"Redis6\u5b66\u4e60"},"content":{"rendered":"

\u6846\u67b6\u9ad8\u7ea7\u8bfe\u7a0b\u7cfb\u5217\u4e4bRedis6<\/p>\n<\/p>\n

\u5c1a\u7845\u8c37JavaEE\u6559\u7814\u7ec4<\/p>\n

1.<\/strong> NoSQL**<\/strong>\u6570\u636e\u5e93\u7b80\u4ecb**<\/h2>\n

1.1.<\/strong> \u6280\u672f\u53d1\u5c55<\/strong><\/h3>\n

\u6280\u672f\u7684\u5206\u7c7b<\/p>\n

1\u3001\u89e3\u51b3\u529f\u80fd\u6027\u7684\u95ee\u9898\uff1aJava\u3001Jsp\u3001RDBMS\u3001Tomcat\u3001HTML\u3001Linux\u3001JDBC\u3001SVN<\/p>\n

2\u3001\u89e3\u51b3\u6269\u5c55\u6027\u7684\u95ee\u9898\uff1aStruts\u3001Spring\u3001SpringMVC\u3001Hibernate\u3001Mybatis<\/p>\n

3\u3001\u89e3\u51b3\u6027\u80fd\u7684\u95ee\u9898\uff1aNoSQL\u3001Java\u7ebf\u7a0b\u3001Hadoop\u3001Nginx\u3001MQ\u3001ElasticSearch<\/p>\n

1.1.1.<\/strong> Web1.0**<\/strong>\u65f6\u4ee3**<\/p>\n

Web1.0\u7684\u65f6\u4ee3\uff0c\u6570\u636e\u8bbf\u95ee\u91cf\u5f88\u6709\u9650\uff0c\u7528\u4e00\u592b\u5f53\u5173\u7684\u9ad8\u6027\u80fd\u7684\u5355\u70b9\u670d\u52a1\u5668\u53ef\u4ee5\u89e3\u51b3\u5927\u90e8\u5206\u95ee\u9898\u3002<\/p>\n

\u200b

\"image-20220512103732754\"<\/div> <\/p>\n

1.1.2.<\/strong> Web2.0**<\/strong>\u65f6\u4ee3**<\/p>\n

\u968f\u7740Web2.0\u7684\u65f6\u4ee3\u7684\u5230\u6765\uff0c\u7528\u6237\u8bbf\u95ee\u91cf\u5927\u5e45\u5ea6\u63d0\u5347\uff0c\u540c\u65f6\u4ea7\u751f\u4e86\u5927\u91cf\u7684\u7528\u6237\u6570\u636e\u3002\u52a0\u4e0a\u540e\u6765\u7684\u667a\u80fd\u79fb\u52a8\u8bbe\u5907\u7684\u666e\u53ca\uff0c\u6240\u6709\u7684\u4e92\u8054\u7f51\u5e73\u53f0\u90fd\u9762\u4e34\u4e86\u5de8\u5927\u7684\u6027\u80fd\u6311\u6218\u3002<\/p>\n

\"image-20220512103811618\"<\/div><\/p>\n

1.1.3.<\/strong> \u89e3\u51b3CPU\u53ca\u5185\u5b58\u538b\u529b<\/strong><\/p>\n

\"image-20220512103825176\"<\/div><\/p>\n

1.1.4.<\/strong> \u89e3\u51b3IO\u538b\u529b<\/strong><\/p>\n

\"image-20220512103835146\"<\/div><\/p>\n

1.2.<\/strong> NoSQL**<\/strong>\u6570\u636e\u5e93**<\/h3>\n

1.2.1.<\/strong> NoSQL**<\/strong>\u6570\u636e\u5e93\u6982\u8ff0**<\/p>\n

NoSQL(NoSQL = Not Only SQL<\/strong> )\uff0c\u610f\u5373\u201c\u4e0d\u4ec5\u4ec5\u662fSQL\u201d\uff0c\u6cdb\u6307\u975e\u5173\u7cfb\u578b\u7684\u6570\u636e\u5e93<\/strong>\u3002 <\/p>\n

NoSQL \u4e0d\u4f9d\u8d56\u4e1a\u52a1\u903b\u8f91\u65b9\u5f0f\u5b58\u50a8\uff0c\u800c\u4ee5\u7b80\u5355\u7684key-value\u6a21\u5f0f\u5b58\u50a8\u3002\u56e0\u6b64\u5927\u5927\u7684\u589e\u52a0\u4e86\u6570\u636e\u5e93\u7684\u6269\u5c55\u80fd\u529b\u3002<\/p>\n

l \u4e0d\u9075\u5faaSQL\u6807\u51c6\u3002<\/p>\n

l \u4e0d\u652f\u6301ACID\u3002<\/p>\n

l \u8fdc\u8d85\u4e8eSQL\u7684\u6027\u80fd\u3002<\/p>\n

1.2.2.<\/strong> NoSQL**<\/strong>\u9002\u7528\u573a\u666f** <\/p>\n

l \u5bf9\u6570\u636e\u9ad8\u5e76\u53d1\u7684\u8bfb\u5199<\/p>\n

l \u6d77\u91cf\u6570\u636e\u7684\u8bfb\u5199<\/p>\n

l \u5bf9\u6570\u636e\u9ad8\u53ef\u6269\u5c55\u6027\u7684<\/p>\n

1.2.3.<\/strong> NoSQL**<\/strong>\u4e0d\u9002\u7528\u573a\u666f**<\/p>\n

l \u9700\u8981\u4e8b\u52a1\u652f\u6301<\/p>\n

l \u57fa\u4e8esql\u7684\u7ed3\u6784\u5316\u67e5\u8be2\u5b58\u50a8\uff0c\u5904\u7406\u590d\u6742\u7684\u5173\u7cfb,\u9700\u8981\u5373\u5e2d\u67e5\u8be2\u3002<\/p>\n

l \uff08\u7528\u4e0d\u7740sql**<\/strong>\u7684\u548c\u7528\u4e86sql\u4e5f\u4e0d\u884c\u7684\u60c5\u51b5\uff0c\u8bf7\u8003\u8651\u7528NoSql<\/strong><\/strong>\uff09**<\/p>\n

1.2.4.<\/strong> Memcache<\/strong><\/p>\n\n\n\n\n\n
<\/th>\n<\/th>\n<\/tr>\n<\/thead>\n
\"image-20220512103947141\"<\/div><\/td>\n
\u00fc \u5f88\u65e9\u51fa\u73b0\u7684NoSql\u6570\u636e\u5e93
\u00fc \u6570\u636e\u90fd\u5728\u5185\u5b58\u4e2d\uff0c\u4e00\u822c\u4e0d\u6301\u4e45\u5316
\u00fc \u652f\u6301\u7b80\u5355\u7684key-value\u6a21\u5f0f\uff0c\u652f\u6301\u7c7b\u578b\u5355\u4e00
\u00fc \u4e00\u822c\u662f\u4f5c\u4e3a\u7f13\u5b58\u6570\u636e\u5e93\u8f85\u52a9\u6301\u4e45\u5316\u7684\u6570\u636e\u5e93<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

1.2.5.<\/strong> Redis<\/strong><\/p>\n\n\n\n\n\n
<\/th>\n<\/th>\n<\/tr>\n<\/thead>\n
\"image-20220512104030521\"<\/div><\/td>\n
\u00fc \u51e0\u4e4e\u8986\u76d6\u4e86Memcached\u7684\u7edd\u5927\u90e8\u5206\u529f\u80fd
\u00fc \u6570\u636e\u90fd\u5728\u5185\u5b58\u4e2d\uff0c\u652f\u6301\u6301\u4e45\u5316\uff0c\u4e3b\u8981\u7528\u4f5c\u5907\u4efd\u6062\u590d
\u00fc \u9664\u4e86\u652f\u6301\u7b80\u5355\u7684key-value\u6a21\u5f0f\uff0c\u8fd8\u652f\u6301\u591a\u79cd\u6570\u636e\u7ed3\u6784\u7684\u5b58\u50a8\uff0c\u6bd4\u5982 list\u3001set\u3001hash\u3001zset\u7b49\u3002
\u00fc \u4e00\u822c\u662f\u4f5c\u4e3a\u7f13\u5b58\u6570\u636e\u5e93\u8f85\u52a9\u6301\u4e45\u5316\u7684\u6570\u636e\u5e93<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

1.2.6.<\/strong> MongoDB<\/strong><\/p>\n\n\n\n\n\n
<\/th>\n<\/th>\n<\/tr>\n<\/thead>\n
\"image-20220512104035804\"<\/div><\/td>\n
\u00fc \u9ad8\u6027\u80fd\u3001\u5f00\u6e90\u3001\u6a21\u5f0f\u81ea\u7531(schema free)\u7684\u6587\u6863\u578b\u6570\u636e\u5e93<\/strong>
\u00fc \u6570\u636e\u90fd\u5728\u5185\u5b58\u4e2d\uff0c \u5982\u679c\u5185\u5b58\u4e0d\u8db3\uff0c\u628a\u4e0d\u5e38\u7528\u7684\u6570\u636e\u4fdd\u5b58\u5230\u786c\u76d8
\u00fc \u867d\u7136\u662fkey-value\u6a21\u5f0f\uff0c\u4f46\u662f\u5bf9value\uff08\u5c24\u5176\u662fjson<\/strong>\uff09\u63d0\u4f9b\u4e86\u4e30\u5bcc\u7684\u67e5\u8be2\u529f\u80fd
\u00fc \u652f\u6301\u4e8c\u8fdb\u5236\u6570\u636e\u53ca\u5927\u578b\u5bf9\u8c61
\u00fc \u53ef\u4ee5\u6839\u636e\u6570\u636e\u7684\u7279\u70b9\u66ff\u4ee3RDBMS<\/strong> \uff0c\u6210\u4e3a\u72ec\u7acb\u7684\u6570\u636e\u5e93\u3002\u6216\u8005\u914d\u5408RDBMS\uff0c\u5b58\u50a8\u7279\u5b9a\u7684\u6570\u636e\u3002<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

1.3.<\/strong> \u884c\u5f0f\u5b58\u50a8\u6570\u636e\u5e93\uff08\u5927\u6570\u636e\u65f6\u4ee3\uff09<\/strong><\/h3>\n

1.3.1.<\/strong> \u884c\u5f0f\u6570\u636e\u5e93<\/strong><\/p>\n

\"image-20220512105002761\"<\/div><\/p>\n

1.3.2.<\/strong> \u5217\u5f0f\u6570\u636e\u5e93<\/strong><\/p>\n

\"image-20220512105009197\"<\/div><\/p>\n

1.3.2.1.<\/strong> Hbase<\/strong><\/p>\n

\"image-20220512105015494\"<\/div><\/p>\n

HBase\u662fHadoop<\/strong>\u9879\u76ee\u4e2d\u7684\u6570\u636e\u5e93\u3002\u5b83\u7528\u4e8e\u9700\u8981\u5bf9\u5927\u91cf\u7684\u6570\u636e\u8fdb\u884c\u968f\u673a\u3001\u5b9e\u65f6\u7684\u8bfb\u5199\u64cd\u4f5c\u7684\u573a\u666f\u4e2d\u3002<\/p>\n

HBase\u7684\u76ee\u6807\u5c31\u662f\u5904\u7406\u6570\u636e\u91cf\u975e\u5e38\u5e9e\u5927<\/strong>\u7684\u8868\uff0c\u53ef\u4ee5\u7528\u666e\u901a\u7684\u8ba1\u7b97\u673a<\/strong>\u5904\u7406\u8d85\u8fc710**<\/strong>\u4ebf\u884c\u6570\u636e\uff0c\u8fd8\u53ef\u5904\u7406\u6709\u6570\u767e\u4e07<\/strong>\u5217**\u5143\u7d20\u7684\u6570\u636e\u8868\u3002<\/p>\n

1.3.2.2.<\/strong> Cassandra[k\u0259\u02c8s\u00e6ndr\u0259]<\/strong><\/p>\n

\"image-20220512105034438\"<\/div><\/p>\n

Apache Cassandra\u662f\u4e00\u6b3e\u514d\u8d39\u7684\u5f00\u6e90NoSQL\u6570\u636e\u5e93\uff0c\u5176\u8bbe\u8ba1\u76ee\u7684\u5728\u4e8e\u7ba1\u7406\u7531\u5927\u91cf\u5546\u7528\u670d\u52a1\u5668\u6784\u5efa\u8d77\u6765\u7684\u5e9e\u5927\u96c6\u7fa4\u4e0a\u7684\u6d77\u91cf\u6570\u636e\u96c6**<\/strong>(\u6570\u636e\u91cf\u901a\u5e38\u8fbe\u5230<\/strong><\/strong>PB\u7ea7\u522b<\/strong><\/strong>)**\u3002\u5728\u4f17\u591a\u663e\u8457\u7279\u6027\u5f53\u4e2d\uff0cCassandra\u6700\u4e3a\u5353\u8d8a\u7684\u957f\u5904\u662f\u5bf9\u5199\u5165\u53ca\u8bfb\u53d6\u64cd\u4f5c\u8fdb\u884c\u89c4\u6a21\u8c03\u6574\uff0c\u800c\u4e14\u5176\u4e0d\u5f3a\u8c03\u4e3b\u96c6\u7fa4\u7684\u8bbe\u8ba1\u601d\u8def\u80fd\u591f\u4ee5\u76f8\u5bf9\u76f4\u89c2\u7684\u65b9\u5f0f\u7b80\u5316\u5404\u96c6\u7fa4\u7684\u521b\u5efa\u4e0e\u6269\u5c55\u6d41\u7a0b\u3002<\/p>\n

 \u8ba1\u7b97\u673a\u5b58\u50a8\u5355\u4f4d \u8ba1\u7b97\u673a\u5b58\u50a8\u5355\u4f4d\u4e00\u822c\u7528B\uff0cKB\uff0cMB\uff0cGB\uff0cTB\uff0cEB\uff0cZB\uff0cYB\uff0cBB\u6765\u8868\u793a\uff0c\u5b83\u4eec\u4e4b\u95f4\u7684\u5173\u7cfb\u662f\uff1a\n \u4f4d bit (\u6bd4\u7279)(Binary Digits)\uff1a\u5b58\u653e\u4e00\u4f4d\u4e8c\u8fdb\u5236\u6570\uff0c\u5373 0 \u6216 1\uff0c\u6700\u5c0f\u7684\u5b58\u50a8\u5355\u4f4d\u3002\n \u5b57\u8282 byte\uff1a8\u4e2a\u4e8c\u8fdb\u5236\u4f4d\u4e3a\u4e00\u4e2a\u5b57\u8282(B)\uff0c\u6700\u5e38\u7528\u7684\u5355\u4f4d\u3002\n 1KB (Kilobyte \u5343\u5b57\u8282)=1024B\uff0c\n 1MB (Megabyte \u5146\u5b57\u8282 \u7b80\u79f0\u201c\u5146\u201d)=1024KB\uff0c\n 1GB (Gigabyte \u5409\u5b57\u8282 \u53c8\u79f0\u201c\u5343\u5146\u201d)=1024MB\uff0c\n 1TB (Trillionbyte \u4e07\u4ebf\u5b57\u8282 \u592a\u5b57\u8282)=1024GB\uff0c\u5176\u4e2d1024=2^10 ( 2 \u768410\u6b21\u65b9)\uff0c\n 1PB\uff08Petabyte  \u5343\u4e07\u4ebf\u5b57\u8282 \u62cd\u5b57\u8282\uff09=1024TB\uff0c\n 1EB\uff08Exabyte \u767e\u4ebf\u4ebf\u5b57\u8282 \u827e\u5b57\u8282\uff09=1024PB\uff0c\n 1ZB (Zettabyte \u5341\u4e07\u4ebf\u4ebf\u5b57\u8282 \u6cfd\u5b57\u8282)= 1024 EB,\n 1YB (Jottabyte \u4e00\u4ebf\u4ebf\u4ebf\u5b57\u8282 \u5c27\u5b57\u8282)= 1024 ZB,\n 1BB (Brontobyte \u4e00\u5343\u4ebf\u4ebf\u4ebf\u5b57\u8282)=  1024 YB.\n \u6ce8\uff1a\u201c\u5146\u201d\u4e3a\u767e\u4e07\u7ea7\u6570\u91cf\u5355\u4f4d\u3002 <\/code><\/pre>\n
1.4.<\/strong>  \u56fe\u5173\u7cfb\u578b\u6570\u636e\u5e93<\/strong><\/h3>\n
\"image-20220512105229987\"<\/div><\/p>\n
\u4e3b\u8981\u5e94\u7528\uff1a\u793e\u4f1a\u5173\u7cfb\uff0c\u516c\u5171\u4ea4\u901a\u7f51\u7edc\uff0c\u5730\u56fe\u53ca\u7f51\u7edc\u62d3\u8c31(n*(n-1)\/2)<\/p>\n
\"image-20220512105235587\"<\/div><\/p>\n
1.5.<\/strong>  DB-Engines<\/strong> \u6570\u636e\u5e93\u6392\u540d<\/strong><\/h3>\n
http:\/\/db-engines.com\/en\/ranking<\/strong><\/a><\/p>\n
\"image-20220512105606117\"<\/div><\/p>\n
2.<\/strong>  Redis\u6982\u8ff0\u5b89\u88c5<\/strong><\/h2>\n
\u00d8 Redis\u662f\u4e00\u4e2a\u5f00\u6e90\u7684key-value\u5b58\u50a8\u7cfb\u7edf\u3002<\/p>\n
\u00d8 \u548cMemcached\u7c7b\u4f3c\uff0c\u5b83\u652f\u6301\u5b58\u50a8\u7684value\u7c7b\u578b\u76f8\u5bf9\u66f4\u591a\uff0c\u5305\u62ecstring(\u5b57\u7b26\u4e32)\u3001list(\u94fe\u8868)\u3001set(\u96c6\u5408)\u3001zset(sorted set --\u6709\u5e8f\u96c6\u5408)\u548chash\uff08\u54c8\u5e0c\u7c7b\u578b\uff09\u3002<\/p>\n
\u00d8 \u8fd9\u4e9b\u6570\u636e\u7c7b\u578b\u90fd\u652f\u6301push\/pop\u3001add\/remove\u53ca\u53d6\u4ea4\u96c6\u5e76\u96c6\u548c\u5dee\u96c6\u53ca\u66f4\u4e30\u5bcc\u7684\u64cd\u4f5c\uff0c\u800c\u4e14\u8fd9\u4e9b\u64cd\u4f5c\u90fd\u662f\u539f\u5b50\u6027\u7684\u3002<\/p>\n
\u00d8 \u5728\u6b64\u57fa\u7840\u4e0a\uff0cRedis\u652f\u6301\u5404\u79cd\u4e0d\u540c\u65b9\u5f0f\u7684\u6392\u5e8f\u3002<\/p>\n
\u00d8 \u4e0ememcached\u4e00\u6837\uff0c\u4e3a\u4e86\u4fdd\u8bc1\u6548\u7387\uff0c\u6570\u636e\u90fd\u662f\u7f13\u5b58\u5728\u5185\u5b58\u4e2d\u3002<\/p>\n
\u00d8 \u533a\u522b\u7684\u662fRedis\u4f1a\u5468\u671f\u6027\u7684\u628a\u66f4\u65b0\u7684\u6570\u636e\u5199\u5165\u78c1\u76d8\u6216\u8005\u628a\u4fee\u6539\u64cd\u4f5c\u5199\u5165\u8ffd\u52a0\u7684\u8bb0\u5f55\u6587\u4ef6\u3002<\/p>\n
\u00d8 \u5e76\u4e14\u5728\u6b64\u57fa\u7840\u4e0a\u5b9e\u73b0\u4e86master-slave(\u4e3b\u4ece)\u540c\u6b65\u3002<\/p>\n
2.1.<\/strong>  \u5e94\u7528\u573a\u666f<\/strong><\/h3>\n
2.1.1.<\/strong>  \u914d\u5408\u5173\u7cfb\u578b\u6570\u636e\u5e93\u505a\u9ad8\u901f\u7f13\u5b58<\/strong><\/p>\n
\u00d8 \u9ad8\u9891\u6b21\uff0c\u70ed\u95e8\u8bbf\u95ee\u7684\u6570\u636e\uff0c\u964d\u4f4e\u6570\u636e\u5e93IO<\/p>\n
\u00d8 \u5206\u5e03\u5f0f\u67b6\u6784\uff0c\u505asession\u5171\u4eab<\/p>\n
\"image-20220512105631103\"<\/div><\/p>\n
2.1.2.<\/strong>  \u591a\u6837\u7684\u6570\u636e\u7ed3\u6784\u5b58\u50a8\u6301\u4e45\u5316\u6570\u636e<\/strong><\/p>\n
\"image-20220512105648506\"<\/div><\/p>\n
2.2.<\/strong>  Redis\u5b89\u88c5<\/strong><\/h3>\n\n\n\n\n\n
Redis\u5b98\u65b9\u7f51\u7ad9<\/th>\nRedis\u4e2d\u6587\u5b98\u65b9\u7f51\u7ad9<\/th>\n<\/tr>\n<\/thead>\n
http:\/\/redis.io<\/strong><\/a><\/td>\nhttp:\/\/redis.cn\/<\/a><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n
\"image-20220512105853554\"<\/div><\/p>\n
\"image-20220512105910752\"<\/div><\/p>\n
2.2.1.<\/strong>  \u5b89\u88c5\u7248\u672c<\/strong><\/p>\n
\u00d8 6.2.1 for Linux\uff08redis-6.2.1.tar.gz\uff09<\/p>\n
\u00d8 \u4e0d\u7528\u8003\u8651\u5728windows\u73af\u5883\u4e0b\u5bf9Redis\u7684\u652f\u6301<\/p>\n
\"image-20220512110519833\"<\/div><\/p>\n
2.2.2.<\/strong>  \u5b89\u88c5\u6b65\u9aa4<\/strong><\/p>\n
2.2.2.1.<\/strong>     \u51c6\u5907\u5de5\u4f5c\uff1a\u4e0b\u8f7d\u5b89\u88c5\u6700\u65b0\u7248\u7684gcc\u7f16\u8bd1\u5668<\/strong><\/p>\n
\u5b89\u88c5C \u8bed\u8a00\u7684\u7f16\u8bd1\u73af\u5883<\/p>\n
yum install centos-release-scl scl-utils-build\nyum install -y devtoolset-8-toolchain\nscl enable devtoolset-8 bash<\/code><\/pre>\n
\u6d4b\u8bd5 gcc\u7248\u672c<\/strong> <\/p>\n
gcc --version<\/p>\n
\"image-20220512110534958\"<\/div><\/p>\n
2.2.2.2.<\/strong>     \u4e0b\u8f7dredis-6.2.1.tar.gz\u653e\/opt\u76ee\u5f55<\/strong><\/p>\n
2.2.2.3.<\/strong>     \u89e3\u538b\u547d\u4ee4\uff1atar -zxvf redis-6.2.1.tar.gz<\/strong><\/p>\n
2.2.2.4.<\/strong>     \u89e3\u538b\u5b8c\u6210\u540e\u8fdb\u5165\u76ee\u5f55\uff1acd redis-6.2.1<\/strong><\/p>\n
2.2.2.5.<\/strong>     \u5728redis-6.2.1\u76ee\u5f55\u4e0b\u518d\u6b21\u6267\u884cmake\u547d\u4ee4\uff08\u53ea\u662f\u7f16\u8bd1\u597d\uff09<\/strong><\/p>\n
2.2.2.6.<\/strong>     \u5982\u679c\u6ca1\u6709\u51c6\u5907\u597dC\u8bed\u8a00\u7f16\u8bd1\u73af\u5883\uff0cmake \u4f1a\u62a5\u9519\u2014Jemalloc\/jemalloc.h\uff1a\u6ca1\u6709\u90a3\u4e2a\u6587\u4ef6<\/strong><\/p>\n
\"image-20220512110543858\"<\/div><\/p>\n
2.2.2.7.<\/strong>     \u89e3\u51b3\u65b9\u6848\uff1a\u8fd0\u884cmake distclean<\/strong><\/p>\n
\"image-20220512110551863\"<\/div><\/p>\n
2.2.2.8.<\/strong>     \u5728redis-6.2.1\u76ee\u5f55\u4e0b\u518d\u6b21\u6267\u884cmake\u547d\u4ee4\uff08\u53ea\u662f\u7f16\u8bd1\u597d\uff09<\/strong><\/p>\n
\"image-20220513204543937\"<\/div><\/p>\n
2.2.2.9.<\/strong>     \u8df3\u8fc7make test \u7ee7\u7eed\u6267\u884c: make install<\/strong><\/p>\n
\"image-20220513204818416\"<\/div><\/p>\n
2.2.3.<\/strong>  \u5b89\u88c5\u76ee\u5f55\uff1a\/usr\/local\/bin<\/p>\n
\u67e5\u770b\u9ed8\u8ba4\u5b89\u88c5\u76ee\u5f55\uff1a<\/p>\n
redis-benchmark:\u6027\u80fd\u6d4b\u8bd5\u5de5\u5177\uff0c\u53ef\u4ee5\u5728\u81ea\u5df1\u672c\u5b50\u8fd0\u884c\uff0c\u770b\u770b\u81ea\u5df1\u672c\u5b50\u6027\u80fd\u5982\u4f55<\/p>\n
redis-check-aof\uff1a\u4fee\u590d\u6709\u95ee\u9898\u7684AOF\u6587\u4ef6\uff0crdb\u548caof\u540e\u9762\u8bb2<\/p>\n
redis-check-dump\uff1a\u4fee\u590d\u6709\u95ee\u9898\u7684dump.rdb\u6587\u4ef6<\/p>\n
redis-sentinel\uff1aRedis\u96c6\u7fa4\u4f7f\u7528<\/p>\n
redis-server\uff1aRedis\u670d\u52a1\u5668\u542f\u52a8\u547d\u4ee4<\/p>\n
redis-cli\uff1a\u5ba2\u6237\u7aef\uff0c\u64cd\u4f5c\u5165\u53e3<\/p>\n
2.2.4.<\/strong>  \u524d\u53f0\u542f\u52a8\uff08\u4e0d\u63a8\u8350\uff09<\/strong><\/p>\n
\u524d\u53f0\u542f\u52a8\uff0c\u547d\u4ee4\u884c\u7a97\u53e3\u4e0d\u80fd\u5173\u95ed\uff0c\u5426\u5219\u670d\u52a1\u5668\u505c\u6b62<\/p>\n
\"image-20220512110616094\"<\/div><\/p>\n
2.2.5.<\/strong>  \u540e\u53f0\u542f\u52a8\uff08\u63a8\u8350\uff09<\/strong><\/p>\n
2.2.5.1.<\/strong> \u5907\u4efdredis.conf<\/p>\n
\u62f7\u8d1d\u4e00\u4efdredis.conf\u5230\u5176\u4ed6\u76ee\u5f55<\/p>\n
cp \/opt\/redis-6.2.7\/redis.conf \/myredis\/<\/code><\/pre>\n
2.2.5.2.<\/strong> \u540e\u53f0\u542f\u52a8\u8bbe\u7f6edaemonize no\u6539\u6210yes<\/p>\n
\u4fee\u6539redis.conf(128\u884c)\u6587\u4ef6\u5c06\u91cc\u9762\u7684daemonize no \u6539\u6210 yes\uff0c\u8ba9\u670d\u52a1\u5728\u540e\u53f0\u542f\u52a8<\/p>\n
2.2.5.3.<\/strong> Redis**<\/strong>\u542f\u52a8**<\/p>\n
redis-server\/myredis\/redis.conf<\/p>\n
\"image-20220513210700274\"<\/div><\/p>\n
2.2.5.4.<\/strong> \u7528\u5ba2\u6237\u7aef\u8bbf\u95ee\uff1aredis-cli<\/p>\n
\"image-20220512110757768\"<\/div><\/p>\n
2.2.5.5.<\/strong> \u591a\u4e2a\u7aef\u53e3\u53ef\u4ee5\uff1aredis-cli -p 6379<\/p>\n
2.2.5.6.<\/strong> \u6d4b\u8bd5\u9a8c\u8bc1\uff1a<\/strong> ping<\/strong><\/p>\n
\"image-20220512110803128\"<\/div><\/p>\n
2.2.5.7.<\/strong> Redis**<\/strong>\u5173\u95ed**<\/p>\n
\u5355\u5b9e\u4f8b\u5173\u95ed\uff1aredis-cli shutdown<\/p>\n
\"image-20220512110811542\"<\/div><\/p>\n
\u4e5f\u53ef\u4ee5\u8fdb\u5165\u7ec8\u7aef\u540e\u518d\u5173\u95ed<\/p>\n
\"image-20220512110815751\"<\/div><\/p>\n
\u591a\u5b9e\u4f8b\u5173\u95ed\uff0c\u6307\u5b9a\u7aef\u53e3\u5173\u95ed\uff1aredis-cli -p 6379 shutdown<\/p>\n
\u7b2c\u4e8c\u79cdRedis \u5b89\u88c5\u65b9\u5f0f\uff1aInstall from Snapcraft<\/h3>\n
\u5b98\u7f51\u6559\u7a0bhttps:\/\/redis.io\/docs\/getting-started\/installation\/install-redis-on-linux\/<\/p>\n
sudo yum install epel-release\nsudo yum install snapd\nsudo systemctl enable --now snapd.socket\nsudo ln -s \/var\/lib\/snapd\/snap \/snap\nsudo snap install redis<\/code><\/pre>\n
\u542f\u52a8server\uff1a<\/p>\n
snap start redis<\/code><\/pre>\n
\u8fdb\u5165redis-cli<\/p>\n
[root@localhost bin]# cd \/snap\/bin\/\n[root@localhost bin]# ls\nredis.benchmark  redis.check-aof  redis.check-rdb  redis.cli  redis.sentinel\n[root@localhost bin]# .\/redis.cli\n127.0.0.1:6379> keys *<\/code><\/pre>\n
snap\u5e38\u7528\u547d\u4ee4<\/h3>\n
https:\/\/www.jianshu.com\/p\/70622b2e9c5d<\/a><\/p>\n
# \u67e5\u770b\u7248\u672c\nsnap version\n\n# \u67e5\u627e\u8f6f\u4ef6\nsnap find "media player"\n\n# \u67e5\u770b\u8f6f\u4ef6\u4fe1\u606f\nsnap info vlc\n\n# \u5b89\u88c5\u8f6f\u4ef6\nsnap install vlc                    # \u9ed8\u8ba4\u4f7f\u7528stable channel\nsnap install vlc --channel=edge     # \u6307\u5b9a channel\nsnap switch  vlc --channel=stable   # \u5207\u6362channel\n\n# snap \u5b89\u88c5\u8f6f\u4ef6\u76ee\u5f55\u5728 \/snap\/bin<\/code>\uff0c\u8be5\u76ee\u5f55\u5df2\u52a0\u5165 $PATH<\/code>\uff0c\u56e0\u6b64\u53ef\u4ee5\u76f4\u63a5\u5728\u547d\u4ee4\u884c\u8fd0\u884c\u76f8\u5e94\u7684\u7a0b\u5e8f\u3002\n\n# \u5217\u51fa\u6240\u6709\u5df2\u5b89\u88c5\u7684\u8f6f\u4ef6\nsnap list\nsnap list --all vlc # \u5217\u51fa\u6240\u6709\u5df2\u5b89\u88c5\u7684\u7248\u672c\n\n# \u66f4\u65b0\u5df2\u5b89\u88c5\u7684\u8f6f\u4ef6\nsnap refresh vlc\n\n# \u56de\u6eda\u8f6f\u4ef6\u7248\u672c\uff0csnap\u9ed8\u8ba4\u4f1a\u4fdd\u75592\u5404\u7248\u672c\nsnap revert vlc\n\n# \u542f\u7528\/\u7981\u7528\u8f6f\u4ef6\nsnap enable\/disable vlc\n\n# \u5220\u9664\u8f6f\u4ef6\nsnap remove vlc         # \u6709\u4e9b\u7cfb\u7edf\u4f1a\u7f13\u5b5831\u5929\nsnap remove vlc --purge # \u5f7b\u5e95\u6e05\u9664\n\n# \u540e\u53f0\u670d\u52a1\u5217\u8868\nsnap services\n\n# \u542f\u52a8\u3001\u505c\u6b62\u3001\u91cd\u542f\u540e\u53f0\u670d\u52a1\nsnap restart lxd\nsnap restart lxd.daemon\n\nsnap start lxd.daemon\nsnap start --enable lxd.daemon\n\nsnap stop lxd.daemon\nsnap stop --disable lxd.daemon\n\n# \u67e5\u770b\u540e\u53f0\u670d\u52a1\u65e5\u5fd7\nsnap logs lxd\nsnap logs lxd -f # \u6301\u7eed\u76d1\u63a7<\/code><\/pre>\n
2.2.6.<\/strong>  Redis\u4ecb\u7ecd\u76f8\u5173\u77e5\u8bc6<\/strong><\/p>\n\n\n\n\n\n
\u7aef\u53e36379\u4ece\u4f55\u800c\u6765  Alessia  Merz     
    
\"image-20220512110834861\"<\/div><\/th>\n
\u9ed8\u8ba416\u4e2a\u6570\u636e\u5e93\uff0c\u7c7b\u4f3c\u6570\u7ec4\u4e0b\u6807\u4ece0\u5f00\u59cb\uff0c\u521d\u59cb\u9ed8\u8ba4\u4f7f\u75280\u53f7\u5e93 
 \u4f7f\u7528\u547d\u4ee4 select   \u6765\u5207\u6362\u6570\u636e\u5e93\u3002\u5982: select 8   
\u7edf\u4e00\u5bc6\u7801\u7ba1\u7406\uff0c\u6240\u6709\u5e93\u540c\u6837\u5bc6\u7801\u3002 
dbsize\u67e5\u770b\u5f53\u524d\u6570\u636e\u5e93\u7684key\u7684\u6570\u91cf  
flushdb\u6e05\u7a7a\u5f53\u524d\u5e93 
flushall\u901a\u6740\u5168\u90e8\u5e93  <\/th>\n<\/tr>\n<\/thead>\n
<\/td>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n
Redis\u662f\u5355\u7ebf\u7a0b+\u591a\u8defIO\u590d\u7528\u6280\u672f<\/p>\n
\u591a\u8def\u590d\u7528\u662f\u6307\u4f7f\u7528\u4e00\u4e2a\u7ebf\u7a0b\u6765\u68c0\u67e5\u591a\u4e2a\u6587\u4ef6\u63cf\u8ff0\u7b26\uff08Socket\uff09\u7684\u5c31\u7eea\u72b6\u6001\uff0c\u6bd4\u5982\u8c03\u7528select\u548cpoll\u51fd\u6570\uff0c\u4f20\u5165\u591a\u4e2a\u6587\u4ef6\u63cf\u8ff0\u7b26\uff0c\u5982\u679c\u6709\u4e00\u4e2a\u6587\u4ef6\u63cf\u8ff0\u7b26\u5c31\u7eea\uff0c\u5219\u8fd4\u56de\uff0c\u5426\u5219\u963b\u585e\u76f4\u5230\u8d85\u65f6\u3002\u5f97\u5230\u5c31\u7eea\u72b6\u6001\u540e\u8fdb\u884c\u771f\u6b63\u7684\u64cd\u4f5c\u53ef\u4ee5\u5728\u540c\u4e00\u4e2a\u7ebf\u7a0b\u91cc\u6267\u884c\uff0c\u4e5f\u53ef\u4ee5\u542f\u52a8\u7ebf\u7a0b\u6267\u884c\uff08\u6bd4\u5982\u4f7f\u7528\u7ebf\u7a0b\u6c60\uff09<\/p>\n
\u4e32\u884c  vs  \u591a\u7ebf\u7a0b+\u9501\uff08memcached\uff09 vs  \u5355\u7ebf\u7a0b+\u591a\u8defIO\u590d\u7528(Redis)<\/p>\n
\uff08\u4e0eMemcache\u4e09\u70b9\u4e0d\u540c: \u652f\u6301\u591a\u6570\u636e\u7c7b\u578b\uff0c\u652f\u6301\u6301\u4e45\u5316\uff0c\u5355\u7ebf\u7a0b+\u591a\u8defIO\u590d\u7528\uff09 <\/p>\n
\"image-20220512132857816\"<\/div><\/p>\n
3.<\/strong>  \u5e38\u7528\u4e94\u5927\u6570\u636e\u7c7b\u578b<\/strong><\/h2>\n
\u54ea\u91cc\u53bb\u83b7\u5f97redis\u5e38\u89c1\u6570\u636e\u7c7b\u578b\u64cd\u4f5c\u547d\u4ee4http:\/\/www.redis.cn\/commands.html<\/p>\n
3.1.<\/strong> Redis**<\/strong>\u952e**(key)<\/strong><\/h3>\n
keys \u67e5\u770b\u5f53\u524d\u5e93\u6240\u6709key  (\u5339\u914d\uff1akeys <\/em>1)<\/p>\n
exists key\u5224\u65ad\u67d0\u4e2akey\u662f\u5426\u5b58\u5728<\/p>\n
type key \u67e5\u770b\u4f60\u7684key\u662f\u4ec0\u4e48\u7c7b\u578b<\/p>\n
del key    \u5220\u9664\u6307\u5b9a\u7684key\u6570\u636e<\/p>\n
unlink key  \u6839\u636evalue\u9009\u62e9\u975e\u963b\u585e\u5220\u9664<\/p>\n
\u4ec5\u5c06keys\u4ecekeyspace\u5143\u6570\u636e\u4e2d\u5220\u9664\uff0c\u771f\u6b63\u7684\u5220\u9664\u4f1a\u5728\u540e\u7eed\u5f02\u6b65\u64cd\u4f5c\u3002<\/p>\n
expire key 10  10\u79d2\u949f\uff1a\u4e3a\u7ed9\u5b9a\u7684key\u8bbe\u7f6e\u8fc7\u671f\u65f6\u95f4<\/p>\n
ttl key \u67e5\u770b\u8fd8\u6709\u591a\u5c11\u79d2\u8fc7\u671f\uff0c-1\u8868\u793a\u6c38\u4e0d\u8fc7\u671f\uff0c-2\u8868\u793a\u5df2\u8fc7\u671f<\/p>\n
select\u547d\u4ee4\u5207\u6362\u6570\u636e\u5e93<\/p>\n
dbsize\u67e5\u770b\u5f53\u524d\u6570\u636e\u5e93\u7684key\u7684\u6570\u91cf<\/p>\n
flushdb\u6e05\u7a7a\u5f53\u524d\u5e93<\/p>\n
flushall\u901a\u6740\u5168\u90e8\u5e93<\/p>\n
3.2.<\/strong>  Redis**<\/strong>\u5b57\u7b26\u4e32**(String)<\/strong><\/h3>\n
3.2.1.<\/strong>  \u7b80\u4ecb<\/strong><\/p>\n
String\u662fRedis\u6700\u57fa\u672c\u7684\u7c7b\u578b\uff0c\u4f60\u53ef\u4ee5\u7406\u89e3\u6210\u4e0eMemcached\u4e00\u6a21\u4e00\u6837\u7684\u7c7b\u578b\uff0c\u4e00\u4e2akey\u5bf9\u5e94\u4e00\u4e2avalue\u3002<\/p>\n
String\u7c7b\u578b\u662f\u4e8c\u8fdb\u5236\u5b89\u5168\u7684\u3002\u610f\u5473\u7740Redis\u7684string\u53ef\u4ee5\u5305\u542b\u4efb\u4f55\u6570\u636e\u3002\u6bd4\u5982jpg\u56fe\u7247\u6216\u8005\u5e8f\u5217\u5316\u7684\u5bf9\u8c61\u3002<\/p>\n
String\u7c7b\u578b\u662fRedis\u6700\u57fa\u672c\u7684\u6570\u636e\u7c7b\u578b\uff0c\u4e00\u4e2aRedis\u4e2d\u5b57\u7b26\u4e32value\u6700\u591a\u53ef\u4ee5\u662f512M<\/p>\n
3.2.2.<\/strong>  \u5e38\u7528\u547d\u4ee4<\/strong><\/p>\n
set  \\\\\u6dfb\u52a0\u952e\u503c\u5bf9<\/p>\n
\"image-20220512133221903\"<\/div><\/p>\n
*NX\uff1a\u5f53\u6570\u636e\u5e93\u4e2dkey\u4e0d\u5b58\u5728\u65f6\uff0c\u53ef\u4ee5\u5c06key-value\u6dfb\u52a0\u6570\u636e\u5e93<\/p>\n
*XX\uff1a\u5f53\u6570\u636e\u5e93\u4e2dkey\u5b58\u5728\u65f6\uff0c\u53ef\u4ee5\u5c06key-value\u6dfb\u52a0\u6570\u636e\u5e93\uff0c\u4e0eNX\u53c2\u6570\u4e92\u65a5<\/p>\n
*EX\uff1akey\u7684\u8d85\u65f6\u79d2\u6570<\/p>\n
*PX\uff1akey\u7684\u8d85\u65f6\u6beb\u79d2\u6570\uff0c\u4e0eEX\u4e92\u65a5<\/p>\n
get  \\\u67e5\u8be2\u5bf9\u5e94\u952e\u503c<\/p>\n
append \\\\\u5c06\u7ed9\u5b9a\u7684\\ \u8ffd\u52a0\u5230\u539f\u503c\u7684\u672b\u5c3e<\/p>\n
strlen \\\u83b7\u5f97\u503c\u7684\u957f\u5ea6<\/p>\n
setnx \\\\\u53ea\u6709\u5728 key \u4e0d\u5b58\u5728\u65f6  \u8bbe\u7f6e key \u7684\u503c<\/p>\n
incr \\<\/p>\n
\u5c06 key \u4e2d\u50a8\u5b58\u7684\u6570\u5b57\u503c\u589e1<\/p>\n
\u53ea\u80fd\u5bf9\u6570\u5b57\u503c\u64cd\u4f5c\uff0c\u5982\u679c\u4e3a\u7a7a\uff0c\u65b0\u589e\u503c\u4e3a1<\/p>\n
decr \\<\/p>\n
\u5c06 key \u4e2d\u50a8\u5b58\u7684\u6570\u5b57\u503c\u51cf1<\/p>\n
\u53ea\u80fd\u5bf9\u6570\u5b57\u503c\u64cd\u4f5c\uff0c\u5982\u679c\u4e3a\u7a7a\uff0c\u65b0\u589e\u503c\u4e3a-1<\/p>\n
incrby \/ decrby \\<\u6b65\u957f>\u5c06 key \u4e2d\u50a8\u5b58\u7684\u6570\u5b57\u503c\u589e\u51cf\u3002\u81ea\u5b9a\u4e49\u6b65\u957f\u3002<\/p>\n
\u539f\u5b50\u6027<\/p>\n
\"image-20220512133810616\"<\/div>        <\/p>\n
\u6240\u8c13\u539f\u5b50<\/strong>\u64cd\u4f5c\u662f\u6307\u4e0d\u4f1a\u88ab\u7ebf\u7a0b\u8c03\u5ea6\u673a\u5236\u6253\u65ad\u7684\u64cd\u4f5c\uff1b  \u8fd9\u79cd\u64cd\u4f5c\u4e00\u65e6\u5f00\u59cb\uff0c\u5c31\u4e00\u76f4\u8fd0\u884c\u5230\u7ed3\u675f\uff0c\u4e2d\u95f4\u4e0d\u4f1a\u6709\u4efb\u4f55 context switch \uff08\u5207\u6362\u5230\u53e6\u4e00\u4e2a\u7ebf\u7a0b\uff09\u3002  <\/p>\n
\uff081\uff09\u5728\u5355\u7ebf\u7a0b\u4e2d\uff0c \u80fd\u591f\u5728\u5355\u6761\u6307\u4ee4\u4e2d\u5b8c\u6210\u7684\u64cd\u4f5c\u90fd\u53ef\u4ee5\u8ba4\u4e3a\u662f"\u539f\u5b50\u64cd\u4f5c"\uff0c\u56e0\u4e3a\u4e2d\u65ad\u53ea\u80fd\u53d1\u751f\u4e8e\u6307\u4ee4\u4e4b\u95f4\u3002  \uff082\uff09\u5728\u591a\u7ebf\u7a0b\u4e2d\uff0c\u4e0d\u80fd\u88ab\u5176\u5b83\u8fdb\u7a0b\uff08\u7ebf\u7a0b\uff09\u6253\u65ad\u7684\u64cd\u4f5c\u5c31\u53eb\u539f\u5b50\u64cd\u4f5c\u3002  Redis\u5355\u547d\u4ee4\u7684\u539f\u5b50\u6027\u4e3b\u8981\u5f97\u76ca\u4e8eRedis\u7684\u5355\u7ebf\u7a0b\u3002  <\/p>\n
\u6848\u4f8b\uff1a<\/strong> <\/p>\n
java\u4e2d\u7684i++\u662f\u5426\u662f\u539f\u5b50\u64cd\u4f5c\uff1f\u4e0d\u662f<\/strong>  <\/p>\n
i=0;\u4e24\u4e2a\u7ebf\u7a0b\u5206\u522b\u5bf9i\u8fdb\u884c++100\u6b21,\u503c\u662f\u591a\u5c11\uff1f 2~200<\/strong>     <\/p>\n\n\n\n\n\n
<\/th>\n<\/th>\n<\/tr>\n<\/thead>\n
i=0
i++
i=99<\/p>\n
i=1<\/p>\n
i++
i=2<\/td>\n
i=0<\/p>\n
i++
i=1<\/p>\n
i++
i=100<\/p>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n
mset \\\\\\\\ ..... <\/p>\n
\u540c\u65f6\u8bbe\u7f6e\u4e00\u4e2a\u6216\u591a\u4e2a key-value\u5bf9 <\/p>\n
mget \\\\\\ .....<\/p>\n
\u540c\u65f6\u83b7\u53d6\u4e00\u4e2a\u6216\u591a\u4e2a value <\/p>\n
msetnx \\\\\\\\ ..... <\/p>\n
\u540c\u65f6\u8bbe\u7f6e\u4e00\u4e2a\u6216\u591a\u4e2a key-value \u5bf9\uff0c\u5f53\u4e14\u4ec5\u5f53\u6240\u6709\u7ed9\u5b9a key \u90fd\u4e0d\u5b58\u5728\u3002<\/p>\n
\u539f\u5b50\u6027\uff0c\u6709\u4e00\u4e2a\u5931\u8d25\u5219\u90fd\u5931\u8d25<\/strong><\/p>\n
getrange \\<\u8d77\u59cb\u4f4d\u7f6e><\u7ed3\u675f\u4f4d\u7f6e><\/p>\n
\u83b7\u5f97\u503c\u7684\u8303\u56f4\uff0c\u7c7b\u4f3cjava\u4e2d\u7684substring\uff0c\u524d\u5305\uff0c\u540e\u5305<\/strong><\/p>\n
setrange \\<\u8d77\u59cb\u4f4d\u7f6e>\\<\/p>\n
\u7528 \\ \u8986\u5199\\\u6240\u50a8\u5b58\u7684\u5b57\u7b26\u4e32\u503c\uff0c\u4ece<\u8d77\u59cb\u4f4d\u7f6e>\u5f00\u59cb(\u7d22\u5f15\u4ece0**<\/strong>\u5f00\u59cb**)\u3002<\/p>\n
setex \\<**<\/strong>\u8fc7\u671f\u65f6\u95f4**>\\<\/strong><\/p>\n
\u8bbe\u7f6e\u952e\u503c\u7684\u540c\u65f6\uff0c\u8bbe\u7f6e\u8fc7\u671f\u65f6\u95f4\uff0c\u5355\u4f4d\u79d2\u3002<\/p>\n
getset \\\\<\/p>\n
\u4ee5\u65b0\u6362\u65e7\uff0c\u8bbe\u7f6e\u4e86\u65b0\u503c\u540c\u65f6\u83b7\u5f97\u65e7\u503c\u3002<\/p>\n
3.2.3.<\/strong>  \u6570\u636e\u7ed3\u6784<\/strong><\/p>\n
String\u7684\u6570\u636e\u7ed3\u6784\u4e3a\u7b80\u5355\u52a8\u6001\u5b57\u7b26\u4e32(Simple Dynamic String,\u7f29\u5199SDS)\u3002\u662f\u53ef\u4ee5\u4fee\u6539\u7684\u5b57\u7b26\u4e32\uff0c\u5185\u90e8\u7ed3\u6784\u5b9e\u73b0\u4e0a\u7c7b\u4f3c\u4e8eJava\u7684ArrayList\uff0c\u91c7\u7528\u9884\u5206\u914d\u5197\u4f59\u7a7a\u95f4\u7684\u65b9\u5f0f\u6765\u51cf\u5c11\u5185\u5b58\u7684\u9891\u7e41\u5206\u914d.<\/p>\n
\"image-20220512134454508\"<\/div><\/p>\n
\u5982\u56fe\u4e2d\u6240\u793a\uff0c\u5185\u90e8\u4e3a\u5f53\u524d\u5b57\u7b26\u4e32\u5b9e\u9645\u5206\u914d\u7684\u7a7a\u95f4capacity\u4e00\u822c\u8981\u9ad8\u4e8e\u5b9e\u9645\u5b57\u7b26\u4e32\u957f\u5ea6len\u3002\u5f53\u5b57\u7b26\u4e32\u957f\u5ea6\u5c0f\u4e8e1M\u65f6\uff0c\u6269\u5bb9\u90fd\u662f\u52a0\u500d\u73b0\u6709\u7684\u7a7a\u95f4\uff0c\u5982\u679c\u8d85\u8fc71M\uff0c\u6269\u5bb9\u65f6\u4e00\u6b21\u53ea\u4f1a\u591a\u62691M\u7684\u7a7a\u95f4\u3002\u9700\u8981\u6ce8\u610f\u7684\u662f\u5b57\u7b26\u4e32\u6700\u5927\u957f\u5ea6\u4e3a512M\u3002<\/p>\n
3.3.<\/strong>  Redis<\/strong>\u5217\u8868(List)<\/strong><\/h3>\n
3.3.1.<\/strong>  \u7b80\u4ecb<\/strong><\/p>\n
\u5355\u952e\u591a\u503c<\/p>\n
Redis \u5217\u8868\u662f\u7b80\u5355\u7684\u5b57\u7b26\u4e32\u5217\u8868\uff0c\u6309\u7167\u63d2\u5165\u987a\u5e8f\u6392\u5e8f\u3002\u4f60\u53ef\u4ee5\u6dfb\u52a0\u4e00\u4e2a\u5143\u7d20\u5230\u5217\u8868\u7684\u5934\u90e8\uff08\u5de6\u8fb9\uff09\u6216\u8005\u5c3e\u90e8\uff08\u53f3\u8fb9\uff09\u3002<\/p>\n
\u5b83\u7684\u5e95\u5c42\u5b9e\u9645\u662f\u4e2a\u53cc\u5411\u94fe\u8868\uff0c\u5bf9\u4e24\u7aef\u7684\u64cd\u4f5c\u6027\u80fd\u5f88\u9ad8\uff0c\u901a\u8fc7\u7d22\u5f15\u4e0b\u6807\u7684\u64cd\u4f5c\u4e2d\u95f4\u7684\u8282\u70b9\u6027\u80fd\u4f1a\u8f83\u5dee\u3002<\/p>\n
\"image-20220514103513188\"<\/div><\/p>\n
3.3.2.<\/strong>  \u5e38\u7528\u547d\u4ee4<\/strong><\/p>\n
lpush\/rpush \\\\\\\\ .... \u4ece\u5de6\u8fb9\/\u53f3\u8fb9\u63d2\u5165\u4e00\u4e2a\u6216\u591a\u4e2a\u503c\u3002<\/p>\n
lpop\/rpop \\\u4ece\u5de6\u8fb9\/\u53f3\u8fb9\u5410\u51fa\u4e00\u4e2a\u503c\u3002\u503c\u5728\u952e\u5728\uff0c\u503c\u5149\u952e\u4ea1\u3002<\/p>\n
rpoplpush \\\\\u4ece\\\u5217\u8868\u53f3\u8fb9\u5410\u51fa\u4e00\u4e2a\u503c\uff0c\u63d2\u5230\\\u5217\u8868\u5de6\u8fb9\u3002<\/p>\n
lrange \\\\\\<\/p>\n
\u6309\u7167\u7d22\u5f15\u4e0b\u6807\u83b7\u5f97\u5143\u7d20(\u4ece\u5de6\u5230\u53f3)<\/p>\n
lrange mylist 0 -1  0\u5de6\u8fb9\u7b2c\u4e00\u4e2a\uff0c-1\u53f3\u8fb9\u7b2c\u4e00\u4e2a\uff0c\uff080 -1\u8868\u793a\u83b7\u53d6\u6240\u6709\uff09<\/p>\n
lindex \\\\\u6309\u7167\u7d22\u5f15\u4e0b\u6807\u83b7\u5f97\u5143\u7d20(\u4ece\u5de6\u5230\u53f3)<\/p>\n
llen \\\u83b7\u5f97\u5217\u8868\u957f\u5ea6 <\/p>\n
linsert \\ before \\\\\u5728\\\u7684\u540e\u9762\u63d2\u5165\\\u63d2\u5165\u503c<\/p>\n
lrem \\\\\\\u4ece\u5de6\u8fb9\u5220\u9664n\u4e2avalue(\u4ece\u5de6\u5230\u53f3)<\/p>\n
lset\\\\\\\u5c06\u5217\u8868key\u4e0b\u6807\u4e3aindex\u7684\u503c\u66ff\u6362\u6210value<\/p>\n
3.3.3.<\/strong>  \u6570\u636e\u7ed3\u6784<\/strong><\/p>\n
List\u7684\u6570\u636e\u7ed3\u6784\u4e3a\u5feb\u901f\u94fe\u8868quickList\u3002<\/p>\n
\u9996\u5148\u5728\u5217\u8868\u5143\u7d20\u8f83\u5c11\u7684\u60c5\u51b5\u4e0b\u4f1a\u4f7f\u7528\u4e00\u5757\u8fde\u7eed\u7684\u5185\u5b58\u5b58\u50a8\uff0c\u8fd9\u4e2a\u7ed3\u6784\u662fziplist\uff0c\u4e5f\u5373\u662f\u538b\u7f29\u5217\u8868\u3002<\/p>\n
\u5b83\u5c06\u6240\u6709\u7684\u5143\u7d20\u7d27\u6328\u7740\u4e00\u8d77\u5b58\u50a8\uff0c\u5206\u914d\u7684\u662f\u4e00\u5757\u8fde\u7eed\u7684\u5185\u5b58\u3002<\/p>\n
\u5f53\u6570\u636e\u91cf\u6bd4\u8f83\u591a\u7684\u65f6\u5019\u624d\u4f1a\u6539\u6210quicklist\u3002<\/p>\n
\u56e0\u4e3a\u666e\u901a\u7684\u94fe\u8868\u9700\u8981\u7684\u9644\u52a0\u6307\u9488\u7a7a\u95f4\u592a\u5927\uff0c\u4f1a\u6bd4\u8f83\u6d6a\u8d39\u7a7a\u95f4\u3002\u6bd4\u5982\u8fd9\u4e2a\u5217\u8868\u91cc\u5b58\u7684\u53ea\u662fint\u7c7b\u578b\u7684\u6570\u636e\uff0c\u7ed3\u6784\u4e0a\u8fd8\u9700\u8981\u4e24\u4e2a\u989d\u5916\u7684\u6307\u9488prev\u548cnext\u3002<\/p>\n
\"image-20220516092822630\"<\/div><\/p>\n
Redis\u5c06\u94fe\u8868\u548cziplist\u7ed3\u5408\u8d77\u6765\u7ec4\u6210\u4e86quicklist\u3002\u4e5f\u5c31\u662f\u5c06\u591a\u4e2aziplist\u4f7f\u7528\u53cc\u5411\u6307\u9488\u4e32\u8d77\u6765\u4f7f\u7528\u3002\u8fd9\u6837\u65e2\u6ee1\u8db3\u4e86\u5feb\u901f\u7684\u63d2\u5165\u5220\u9664\u6027\u80fd\uff0c\u53c8\u4e0d\u4f1a\u51fa\u73b0\u592a\u5927\u7684\u7a7a\u95f4\u5197\u4f59\u3002<\/p>\n
3.4.<\/strong>  Redis**<\/strong>\u96c6\u5408**(Set)<\/strong><\/h3>\n
3.4.1.<\/strong>  \u7b80\u4ecb<\/strong><\/p>\n
Redis set\u5bf9\u5916\u63d0\u4f9b\u7684\u529f\u80fd\u4e0elist\u7c7b\u4f3c\u662f\u4e00\u4e2a\u5217\u8868\u7684\u529f\u80fd\uff0c\u7279\u6b8a\u4e4b\u5904\u5728\u4e8eset\u662f\u53ef\u4ee5\u81ea\u52a8\u6392\u91cd<\/strong>\u7684\uff0c\u5f53\u4f60\u9700\u8981\u5b58\u50a8\u4e00\u4e2a\u5217\u8868\u6570\u636e\uff0c\u53c8\u4e0d\u5e0c\u671b\u51fa\u73b0\u91cd\u590d\u6570\u636e\u65f6\uff0cset\u662f\u4e00\u4e2a\u5f88\u597d\u7684\u9009\u62e9\uff0c\u5e76\u4e14set\u63d0\u4f9b\u4e86\u5224\u65ad\u67d0\u4e2a\u6210\u5458\u662f\u5426\u5728\u4e00\u4e2aset\u96c6\u5408\u5185\u7684\u91cd\u8981\u63a5\u53e3\uff0c\u8fd9\u4e2a\u4e5f\u662flist\u6240\u4e0d\u80fd\u63d0\u4f9b\u7684\u3002<\/p>\n
Redis\u7684Set\u662fstring\u7c7b\u578b\u7684\u65e0\u5e8f\u96c6\u5408\u3002\u5b83\u5e95\u5c42\u5176\u5b9e\u662f\u4e00\u4e2avalue\u4e3anull\u7684hash\u8868\uff0c\u6240\u4ee5\u6dfb\u52a0\uff0c\u5220\u9664\uff0c\u67e5\u627e\u7684\u590d\u6742\u5ea6\u90fd\u662f**<\/strong>O(1)**\u3002<\/p>\n
\u4e00\u4e2a\u7b97\u6cd5\uff0c\u968f\u7740\u6570\u636e\u7684\u589e\u52a0\uff0c\u6267\u884c\u65f6\u95f4\u7684\u957f\u77ed\uff0c\u5982\u679c\u662fO(1)\uff0c\u6570\u636e\u589e\u52a0\uff0c\u67e5\u627e\u6570\u636e\u7684\u65f6\u95f4\u4e0d\u53d8<\/p>\n
3.4.2.<\/strong>  \u5e38\u7528\u547d\u4ee4<\/strong><\/p>\n
sadd \\\\\\ ..... <\/p>\n
\u5c06\u4e00\u4e2a\u6216\u591a\u4e2a member \u5143\u7d20\u52a0\u5165\u5230\u96c6\u5408 key \u4e2d\uff0c\u5df2\u7ecf\u5b58\u5728\u7684 member \u5143\u7d20\u5c06\u88ab\u5ffd\u7565<\/p>\n
smembers \\\u53d6\u51fa\u8be5\u96c6\u5408\u7684\u6240\u6709\u503c\u3002<\/p>\n
sismember \\\\\u5224\u65ad\u96c6\u5408\\\u662f\u5426\u4e3a\u542b\u6709\u8be5\\\u503c\uff0c\u67091\uff0c\u6ca1\u67090<\/p>\n
scard \\\u8fd4\u56de\u8be5\u96c6\u5408\u7684\u5143\u7d20\u4e2a\u6570\u3002<\/p>\n
srem \\\\\\ .... \u5220\u9664\u96c6\u5408\u4e2d\u7684\u67d0\u4e2a\u5143\u7d20\u3002<\/p>\n
spop \\\u968f\u673a\u4ece\u8be5\u96c6\u5408\u4e2d\u5410\u51fa\u4e00\u4e2a\u503c\u3002<\/strong><\/p>\n
srandmember \\\\\u968f\u673a\u4ece\u8be5\u96c6\u5408\u4e2d\u53d6\u51fan\u4e2a\u503c\u3002\u4e0d\u4f1a\u4ece\u96c6\u5408\u4e2d\u5220\u9664 \u3002<\/p>\n
smove \\\\value\u628a\u96c6\u5408\u4e2d\u4e00\u4e2a\u503c\u4ece\u4e00\u4e2a\u96c6\u5408\u79fb\u52a8\u5230\u53e6\u4e00\u4e2a\u96c6\u5408<\/p>\n
sinter \\\\\u8fd4\u56de\u4e24\u4e2a\u96c6\u5408\u7684\u4ea4\u96c6\u5143\u7d20\u3002<\/p>\n
sunion \\\\\u8fd4\u56de\u4e24\u4e2a\u96c6\u5408\u7684\u5e76\u96c6\u5143\u7d20\u3002<\/p>\n
sdiff \\\\\u8fd4\u56de\u4e24\u4e2a\u96c6\u5408\u7684\u5dee\u96c6<\/strong>\u5143\u7d20(key1\u4e2d\u7684\uff0c\u4e0d\u5305\u542bkey2\u4e2d\u7684)<\/p>\n
3.4.3.<\/strong>  \u6570\u636e\u7ed3\u6784<\/strong><\/p>\n
Set\u6570\u636e\u7ed3\u6784\u662fdict\u5b57\u5178\uff0c\u5b57\u5178\u662f\u7528\u54c8\u5e0c\u8868\u5b9e\u73b0\u7684\u3002<\/p>\n
Java\u4e2dHashSet\u7684\u5185\u90e8\u5b9e\u73b0\u4f7f\u7528\u7684\u662fHashMap\uff0c\u53ea\u4e0d\u8fc7\u6240\u6709\u7684value\u90fd\u6307\u5411\u540c\u4e00\u4e2a\u5bf9\u8c61\u3002Redis\u7684set\u7ed3\u6784\u4e5f\u662f\u4e00\u6837\uff0c\u5b83\u7684\u5185\u90e8\u4e5f\u4f7f\u7528hash\u7ed3\u6784\uff0c\u6240\u6709\u7684value\u90fd\u6307\u5411\u540c\u4e00\u4e2a\u5185\u90e8\u503c\u3002<\/p>\n
3.5.<\/strong>  Redis**<\/strong>\u54c8\u5e0c**(Hash)<\/strong><\/h3>\n
3.5.1.<\/strong>  \u7b80\u4ecb<\/strong><\/p>\n
Redis hash \u662f\u4e00\u4e2a\u952e\u503c\u5bf9\u96c6\u5408\u3002<\/p>\n
Redis hash\u662f\u4e00\u4e2astring\u7c7b\u578b\u7684field\u548cvalue\u7684\u6620\u5c04\u8868\uff0chash\u7279\u522b\u9002\u5408\u7528\u4e8e\u5b58\u50a8\u5bf9\u8c61\u3002<\/p>\n
\u7c7b\u4f3cJava\u91cc\u9762\u7684Map<String,Object><\/p>\n
\u7528\u6237ID\u4e3a\u67e5\u627e\u7684key\uff0c\u5b58\u50a8\u7684value\u7528\u6237\u5bf9\u8c61\u5305\u542b\u59d3\u540d\uff0c\u5e74\u9f84\uff0c\u751f\u65e5\u7b49\u4fe1\u606f\uff0c\u5982\u679c\u7528\u666e\u901a\u7684key\/value\u7ed3\u6784\u6765\u5b58\u50a8<\/p>\n
\u4e3b\u8981\u6709\u4ee5\u4e0b2\u79cd\u5b58\u50a8\u65b9\u5f0f\uff1a<\/p>\n\n\n\n\n\n
\"image-20220516093310078\"<\/div>
\u6bcf\u6b21\u4fee\u6539\u7528\u6237\u7684\u67d0\u4e2a\u5c5e\u6027\u9700\u8981\uff0c\u5148\u53cd\u5e8f\u5217\u5316\u6539\u597d\u540e\u518d\u5e8f\u5217\u5316\u56de\u53bb\u3002\u5f00\u9500\u8f83\u5927\u3002<\/th>\n
\"image-20220516093341981\"<\/div>
\u7528\u6237ID\u6570\u636e\u5197\u4f59<\/th>\n<\/tr>\n<\/thead>\n
<\/td>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n\n\n\n\n\n
<\/th>\n<\/tr>\n<\/thead>\n
\"\"<\/div>
\u901a\u8fc7 key(\u7528\u6237**<\/strong>ID) + field(\u5c5e\u6027\u6807\u7b7e<\/strong><\/strong>) <\/strong>\u5c31\u53ef\u4ee5\u64cd\u4f5c\u5bf9\u5e94\u5c5e\u6027\u6570\u636e\u4e86\uff0c\u65e2\u4e0d\u9700\u8981\u91cd\u590d\u5b58\u50a8\u6570\u636e\uff0c\u4e5f\u4e0d\u4f1a\u5e26\u6765\u5e8f\u5217\u5316\u548c\u5e76\u53d1\u4fee\u6539\u63a7\u5236\u7684\u95ee\u9898**<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n
\u200b         <\/p>\n
3.5.2.<\/strong>  \u5e38\u7528\u547d\u4ee4<\/strong><\/p>\n
hset \\\\\\\u7ed9\\\u96c6\u5408\u4e2d\u7684 \\\u952e\u8d4b\u503c\\<\/p>\n
hget \\\\\u4ece\\\u96c6\u5408\\\u53d6\u51fa value <\/p>\n
hmset \\\\\\\\\\... \u6279\u91cf\u8bbe\u7f6ehash\u7684\u503c<\/p>\n
hexists\\\\\u67e5\u770b\u54c8\u5e0c\u8868 key \u4e2d\uff0c\u7ed9\u5b9a\u57df field \u662f\u5426\u5b58\u5728\u3002 <\/p>\n
hkeys \\\u5217\u51fa\u8be5hash\u96c6\u5408\u7684\u6240\u6709field<\/p>\n
hvals \\\u5217\u51fa\u8be5hash\u96c6\u5408\u7684\u6240\u6709value<\/p>\n
hincrby \\\\\\\u4e3a\u54c8\u5e0c\u8868 key \u4e2d\u7684\u57df field \u7684\u503c\u52a0\u4e0a\u589e\u91cf 1  -1<\/p>\n
hsetnx \\\\\\\u5c06\u54c8\u5e0c\u8868 key \u4e2d\u7684\u57df field \u7684\u503c\u8bbe\u7f6e\u4e3a value \uff0c\u5f53\u4e14\u4ec5\u5f53\u57df field \u4e0d\u5b58\u5728 .<\/p>\n
3.5.3.<\/strong>  \u6570\u636e\u7ed3\u6784<\/strong><\/p>\n
Hash\u7c7b\u578b\u5bf9\u5e94\u7684\u6570\u636e\u7ed3\u6784\u662f\u4e24\u79cd\uff1aziplist\uff08\u538b\u7f29\u5217\u8868\uff09\uff0chashtable\uff08\u54c8\u5e0c\u8868\uff09\u3002\u5f53field-value\u957f\u5ea6\u8f83\u77ed\u4e14\u4e2a\u6570\u8f83\u5c11\u65f6\uff0c\u4f7f\u7528ziplist\uff0c\u5426\u5219\u4f7f\u7528hashtable\u3002<\/p>\n
3.6.<\/strong>  Redis**<\/strong>\u6709\u5e8f\u96c6\u5408**Zset(sorted set)<\/strong><\/h3>\n
3.6.1.<\/strong>  \u7b80\u4ecb<\/strong><\/p>\n
Redis\u6709\u5e8f\u96c6\u5408zset\u4e0e\u666e\u901a\u96c6\u5408set\u975e\u5e38\u76f8\u4f3c\uff0c\u662f\u4e00\u4e2a\u6ca1\u6709\u91cd\u590d\u5143\u7d20\u7684\u5b57\u7b26\u4e32\u96c6\u5408\u3002<\/p>\n
\u4e0d\u540c\u4e4b\u5904\u662f\u6709\u5e8f\u96c6\u5408\u7684\u6bcf\u4e2a\u6210\u5458\u90fd\u5173\u8054\u4e86\u4e00\u4e2a\u8bc4\u5206\uff08**<\/strong>score**\uff09<\/strong>,\u8fd9\u4e2a\u8bc4\u5206\uff08score\uff09\u88ab\u7528\u6765\u6309\u7167\u4ece\u6700\u4f4e\u5206\u5230\u6700\u9ad8\u5206\u7684\u65b9\u5f0f\u6392\u5e8f\u96c6\u5408\u4e2d\u7684\u6210\u5458\u3002\u96c6\u5408\u7684\u6210\u5458\u662f\u552f\u4e00\u7684\uff0c\u4f46\u662f\u8bc4\u5206\u53ef\u4ee5\u662f\u91cd\u590d\u4e86 \u3002<\/p>\n
\u56e0\u4e3a\u5143\u7d20\u662f\u6709\u5e8f\u7684, \u6240\u4ee5\u4f60\u4e5f\u53ef\u4ee5\u5f88\u5feb\u7684\u6839\u636e\u8bc4\u5206\uff08score\uff09\u6216\u8005\u6b21\u5e8f\uff08position\uff09\u6765\u83b7\u53d6\u4e00\u4e2a\u8303\u56f4\u7684\u5143\u7d20\u3002<\/p>\n
\u8bbf\u95ee\u6709\u5e8f\u96c6\u5408\u7684\u4e2d\u95f4\u5143\u7d20\u4e5f\u662f\u975e\u5e38\u5feb\u7684,\u56e0\u6b64\u4f60\u80fd\u591f\u4f7f\u7528\u6709\u5e8f\u96c6\u5408\u4f5c\u4e3a\u4e00\u4e2a\u6ca1\u6709\u91cd\u590d\u6210\u5458\u7684\u667a\u80fd\u5217\u8868\u3002<\/p>\n
3.6.2.<\/strong>  \u5e38\u7528\u547d\u4ee4<\/strong><\/p>\n
zadd \\\\\\\\\\\u2026<\/p>\n
\u5c06\u4e00\u4e2a\u6216\u591a\u4e2a member \u5143\u7d20\u53ca\u5176 score \u503c\u52a0\u5165\u5230\u6709\u5e8f\u96c6 key \u5f53\u4e2d\u3002<\/p>\n
zrange \\\\\\ [WITHSCORES]<\/strong>  <\/p>\n
\u8fd4\u56de\u6709\u5e8f\u96c6 key \u4e2d\uff0c\u4e0b\u6807\u5728\\\\\u4e4b\u95f4\u7684\u5143\u7d20<\/p>\n
\u5e26WITHSCORES\uff0c\u53ef\u4ee5\u8ba9\u5206\u6570\u4e00\u8d77\u548c\u503c\u8fd4\u56de\u5230\u7ed3\u679c\u96c6\u3002<\/p>\n
zrangebyscore key minmax [withscores] [limit offset count]<\/p>\n
\u8fd4\u56de\u6709\u5e8f\u96c6 key \u4e2d\uff0c\u6240\u6709 score \u503c\u4ecb\u4e8e min \u548c max \u4e4b\u95f4(\u5305\u62ec\u7b49\u4e8e min \u6216 max )\u7684\u6210\u5458\u3002\u6709\u5e8f\u96c6\u6210\u5458\u6309 score \u503c\u9012\u589e(\u4ece\u5c0f\u5230\u5927)\u6b21\u5e8f\u6392\u5217\u3002 <\/p>\n
zrevrangebyscore key maxmin [withscores] [limit offset count]        <\/p>\n
\u540c\u4e0a\uff0c\u6539\u4e3a\u4ece\u5927\u5230\u5c0f\u6392\u5217\u3002 <\/p>\n
zincrby \\\\\\   \u4e3a\u5143\u7d20\u7684score\u52a0\u4e0a\u589e\u91cf<\/p>\n
zrem \\\\\u5220\u9664\u8be5\u96c6\u5408\u4e0b\uff0c\u6307\u5b9a\u503c\u7684\u5143\u7d20<\/p>\n
zcount \\\\\\\u7edf\u8ba1\u8be5\u96c6\u5408\uff0c\u5206\u6570\u533a\u95f4\u5185\u7684\u5143\u7d20\u4e2a\u6570 <\/p>\n
zrank \\\\\u8fd4\u56de\u8be5\u503c\u5728\u96c6\u5408\u4e2d\u7684\u6392\u540d\uff0c\u4ece0\u5f00\u59cb\u3002<\/p>\n
\u6848\u4f8b\uff1a\u5982\u4f55\u5229\u7528zset\u5b9e\u73b0\u4e00\u4e2a\u6587\u7ae0\u8bbf\u95ee\u91cf\u7684\u6392\u884c\u699c\uff1f<\/p>\n
\"image-20220516093956471\"<\/div><\/p>\n
3.6.3.<\/strong>  \u6570\u636e\u7ed3\u6784<\/strong><\/p>\n
SortedSet(zset)\u662fRedis\u63d0\u4f9b\u7684\u4e00\u4e2a\u975e\u5e38\u7279\u522b\u7684\u6570\u636e\u7ed3\u6784\uff0c\u4e00\u65b9\u9762\u5b83\u7b49\u4ef7\u4e8eJava\u7684\u6570\u636e\u7ed3\u6784Map<String, Double>\uff0c\u53ef\u4ee5\u7ed9\u6bcf\u4e00\u4e2a\u5143\u7d20value\u8d4b\u4e88\u4e00\u4e2a\u6743\u91cdscore\uff0c\u53e6\u4e00\u65b9\u9762\u5b83\u53c8\u7c7b\u4f3c\u4e8eTreeSet\uff0c\u5185\u90e8\u7684\u5143\u7d20\u4f1a\u6309\u7167\u6743\u91cdscore\u8fdb\u884c\u6392\u5e8f\uff0c\u53ef\u4ee5\u5f97\u5230\u6bcf\u4e2a\u5143\u7d20\u7684\u540d\u6b21\uff0c\u8fd8\u53ef\u4ee5\u901a\u8fc7score\u7684\u8303\u56f4\u6765\u83b7\u53d6\u5143\u7d20\u7684\u5217\u8868\u3002<\/p>\n
zset\u5e95\u5c42\u4f7f\u7528\u4e86\u4e24\u4e2a\u6570\u636e\u7ed3\u6784<\/p>\n
\uff081\uff09hash\uff0chash\u7684\u4f5c\u7528\u5c31\u662f\u5173\u8054\u5143\u7d20value\u548c\u6743\u91cdscore\uff0c\u4fdd\u969c\u5143\u7d20value\u7684\u552f\u4e00\u6027\uff0c\u53ef\u4ee5\u901a\u8fc7\u5143\u7d20value\u627e\u5230\u76f8\u5e94\u7684score\u503c\u3002<\/p>\n
\uff082\uff09\u8df3\u8dc3\u8868\uff0c\u8df3\u8dc3\u8868\u7684\u76ee\u7684\u5728\u4e8e\u7ed9\u5143\u7d20value\u6392\u5e8f\uff0c\u6839\u636escore\u7684\u8303\u56f4\u83b7\u53d6\u5143\u7d20\u5217\u8868\u3002<\/p>\n
3.6.4.<\/strong>  \u8df3\u8dc3\u8868\uff08\u8df3\u8868\uff09<\/strong><\/p>\n
1\u3001\u7b80\u4ecb<\/p>\n
\u6709\u5e8f\u96c6\u5408\u5728\u751f\u6d3b\u4e2d\u6bd4\u8f83\u5e38\u89c1\uff0c\u4f8b\u5982\u6839\u636e\u6210\u7ee9\u5bf9\u5b66\u751f\u6392\u540d\uff0c\u6839\u636e\u5f97\u5206\u5bf9\u73a9\u5bb6\u6392\u540d\u7b49\u3002\u5bf9\u4e8e\u6709\u5e8f\u96c6\u5408\u7684\u5e95\u5c42\u5b9e\u73b0\uff0c\u53ef\u4ee5\u7528\u6570\u7ec4\u3001\u5e73\u8861\u6811\u3001\u94fe\u8868\u7b49\u3002\u6570\u7ec4\u4e0d\u4fbf\u5143\u7d20\u7684\u63d2\u5165\u3001\u5220\u9664\uff1b\u5e73\u8861\u6811\u6216\u7ea2\u9ed1\u6811\u867d\u7136\u6548\u7387\u9ad8\u4f46\u7ed3\u6784\u590d\u6742\uff1b\u94fe\u8868\u67e5\u8be2\u9700\u8981\u904d\u5386\u6240\u6709\u6548\u7387\u4f4e\u3002Redis\u91c7\u7528\u7684\u662f\u8df3\u8dc3\u8868\u3002\u8df3\u8dc3\u8868\u6548\u7387\u582a\u6bd4\u7ea2\u9ed1\u6811\uff0c\u5b9e\u73b0\u8fdc\u6bd4\u7ea2\u9ed1\u6811\u7b80\u5355\u3002<\/p>\n
2\u3001\u5b9e\u4f8b<\/p>\n
\u5bf9\u6bd4\u6709\u5e8f\u94fe\u8868\u548c\u8df3\u8dc3\u8868\uff0c\u4ece\u94fe\u8868\u4e2d\u67e5\u8be2\u51fa51<\/p>\n
\uff081\uff09  \u6709\u5e8f\u94fe\u8868<\/p>\n
\"image-20220516094023505\"<\/div><\/p>\n
\u8981\u67e5\u627e\u503c\u4e3a51\u7684\u5143\u7d20\uff0c\u9700\u8981\u4ece\u7b2c\u4e00\u4e2a\u5143\u7d20\u5f00\u59cb\u4f9d\u6b21\u67e5\u627e\u3001\u6bd4\u8f83\u624d\u80fd\u627e\u5230\u3002\u5171\u9700\u89816\u6b21\u6bd4\u8f83\u3002<\/p>\n
\uff082\uff09  \u8df3\u8dc3\u8868<\/p>\n
\"image-20220516094029179\"<\/div><\/p>\n
\u4ece\u7b2c2\u5c42\u5f00\u59cb\uff0c1\u8282\u70b9\u6bd451\u8282\u70b9\u5c0f\uff0c\u5411\u540e\u6bd4\u8f83\u3002<\/p>\n
21\u8282\u70b9\u6bd451\u8282\u70b9\u5c0f\uff0c\u7ee7\u7eed\u5411\u540e\u6bd4\u8f83\uff0c\u540e\u9762\u5c31\u662fNULL\u4e86\uff0c\u6240\u4ee5\u4ece21\u8282\u70b9\u5411\u4e0b\u5230\u7b2c1\u5c42<\/p>\n
\u5728\u7b2c1\u5c42\uff0c41\u8282\u70b9\u6bd451\u8282\u70b9\u5c0f\uff0c\u7ee7\u7eed\u5411\u540e\uff0c61\u8282\u70b9\u6bd451\u8282\u70b9\u5927\uff0c\u6240\u4ee5\u4ece41\u5411\u4e0b<\/p>\n
\u5728\u7b2c0\u5c42\uff0c51\u8282\u70b9\u4e3a\u8981\u67e5\u627e\u7684\u8282\u70b9\uff0c\u8282\u70b9\u88ab\u627e\u5230\uff0c\u5171\u67e5\u627e4\u6b21\u3002<\/p>\n
\u4ece\u6b64\u53ef\u4ee5\u770b\u51fa\u8df3\u8dc3\u8868\u6bd4\u6709\u5e8f\u94fe\u8868\u6548\u7387\u8981\u9ad8<\/p>\n
4.<\/strong>  Redis\u914d\u7f6e\u6587\u4ef6\u4ecb\u7ecd<\/h2>\n
\u81ea\u5b9a\u4e49\u76ee\u5f55\uff1a\/myredis\/redis.conf<\/p>\n
4.1.<\/strong>  Units\u5355\u4f4d<\/h3>\n
\u914d\u7f6e\u5927\u5c0f\u5355\u4f4d,\u5f00\u5934\u5b9a\u4e49\u4e86\u4e00\u4e9b\u57fa\u672c\u7684\u5ea6\u91cf\u5355\u4f4d\uff0c\u53ea\u652f\u6301bytes\uff0c\u4e0d\u652f\u6301bit<\/p>\n
\u5927\u5c0f\u5199\u4e0d\u654f\u611f<\/p>\n
\"image-20220516094110713\"<\/div><\/p>\n
4.2.<\/strong>  INCLUDES\u5305\u542b<\/h3>\n
\"image-20220516094117704\"<\/div><\/p>\n
\u7c7b\u4f3cjsp\u4e2d\u7684include\uff0c\u591a\u5b9e\u4f8b\u7684\u60c5\u51b5\u53ef\u4ee5\u628a\u516c\u7528\u7684\u914d\u7f6e\u6587\u4ef6\u63d0\u53d6\u51fa\u6765<\/p>\n
4.3.<\/strong>  \u7f51\u7edc\u76f8\u5173\u914d\u7f6e<\/h3>\n
4.3.1.<\/strong> bind<\/p>\n
\u9ed8\u8ba4\u60c5\u51b5bind=127.0.0.1\u53ea\u80fd\u63a5\u53d7\u672c\u673a\u7684\u8bbf\u95ee\u8bf7\u6c42<\/p>\n
\u4e0d\u5199\u7684\u60c5\u51b5\u4e0b\uff0c\u65e0\u9650\u5236\u63a5\u53d7\u4efb\u4f55ip\u5730\u5740\u7684\u8bbf\u95ee<\/p>\n
\u751f\u4ea7\u73af\u5883\u80af\u5b9a\u8981\u5199\u4f60\u5e94\u7528\u670d\u52a1\u5668\u7684\u5730\u5740\uff1b\u670d\u52a1\u5668\u662f\u9700\u8981\u8fdc\u7a0b\u8bbf\u95ee\u7684\uff0c\u6240\u4ee5\u9700\u8981\u5c06\u5176\u6ce8\u91ca\u6389<\/p>\n
\u5982\u679c\u5f00\u542f\u4e86protected-mode\uff0c\u90a3\u4e48\u5728\u6ca1\u6709\u8bbe\u5b9abind ip\u4e14\u6ca1\u6709\u8bbe\u5bc6\u7801\u7684\u60c5\u51b5\u4e0b\uff0cRedis\u53ea\u5141\u8bb8\u63a5\u53d7\u672c\u673a\u7684\u54cd\u5e94<\/p>\n
\"image-20220516094158261\"<\/div><\/p>\n
\u4fdd\u5b58\u914d\u7f6e\uff0c\u505c\u6b62\u670d\u52a1\uff0c\u91cd\u542f\u542f\u52a8\u67e5\u770b\u8fdb\u7a0b\uff0c\u4e0d\u518d\u662f\u672c\u673a\u8bbf\u95ee\u4e86\u3002<\/p>\n
\"image-20220516094204380\"<\/div><\/p>\n
4.3.2.<\/strong>  protected-mode<\/p>\n
\u5c06\u672c\u673a\u8bbf\u95ee\u4fdd\u62a4\u6a21\u5f0f\u8bbe\u7f6eno<\/p>\n
4.3.3.<\/strong>  Port<\/p>\n
\u7aef\u53e3\u53f7\uff0c\u9ed8\u8ba4 6379<\/p>\n
4.3.4.<\/strong>  tcp-backlog<\/p>\n
\u8bbe\u7f6etcp\u7684backlog\uff0cbacklog\u5176\u5b9e\u662f\u4e00\u4e2a\u8fde\u63a5\u961f\u5217\uff0cbacklog\u961f\u5217\u603b\u548c=\u672a\u5b8c\u6210\u4e09\u6b21\u63e1\u624b\u961f\u5217 + \u5df2\u7ecf\u5b8c\u6210\u4e09\u6b21\u63e1\u624b\u961f\u5217\u3002<\/p>\n
\u5728\u9ad8\u5e76\u53d1\u73af\u5883\u4e0b\u4f60\u9700\u8981\u4e00\u4e2a\u9ad8backlog\u503c\u6765\u907f\u514d\u6162\u5ba2\u6237\u7aef\u8fde\u63a5\u95ee\u9898\u3002<\/p>\n
\u6ce8\u610fLinux\u5185\u6838\u4f1a\u5c06\u8fd9\u4e2a\u503c\u51cf\u5c0f\u5230\/proc\/sys\/net\/core\/somaxconn\u7684\u503c\uff08128\uff09\uff0c\u6240\u4ee5\u9700\u8981\u786e\u8ba4\u589e\u5927\/proc\/sys\/net\/core\/somaxconn\u548c\/proc\/sys\/net\/ipv4\/tcp_max_syn_backlog\uff08128\uff09\u4e24\u4e2a\u503c\u6765\u8fbe\u5230\u60f3\u8981\u7684\u6548\u679c<\/p>\n
\"image-20220516094536920\"<\/div><\/p>\n
4.3.5.<\/strong>  timeout<\/p>\n
\u4e00\u4e2a\u7a7a\u95f2\u7684\u5ba2\u6237\u7aef\u7ef4\u6301\u591a\u5c11\u79d2\u4f1a\u5173\u95ed\uff0c0\u8868\u793a\u5173\u95ed\u8be5\u529f\u80fd\u3002\u5373\u6c38\u4e0d\u5173\u95ed\u3002<\/p>\n
\"image-20220516094608143\"<\/div><\/p>\n
4.3.6.<\/strong>  tcp-keepalive<\/p>\n
\u5bf9\u8bbf\u95ee\u5ba2\u6237\u7aef\u7684\u4e00\u79cd\u5fc3\u8df3\u68c0\u6d4b\uff0c\u6bcf\u4e2an\u79d2\u68c0\u6d4b\u4e00\u6b21\u3002<\/p>\n
\u5355\u4f4d\u4e3a\u79d2\uff0c\u5982\u679c\u8bbe\u7f6e\u4e3a0\uff0c\u5219\u4e0d\u4f1a\u8fdb\u884cKeepalive\u68c0\u6d4b\uff0c\u5efa\u8bae\u8bbe\u7f6e\u621060 <\/p>\n
\"image-20220516094614484\"<\/div><\/p>\n
4.4.<\/strong>  GENERAL\u901a\u7528<\/h3>\n
4.4.1.<\/strong>  daemonize<\/strong><\/p>\n
\u662f\u5426\u4e3a\u540e\u53f0\u8fdb\u7a0b\uff0c\u8bbe\u7f6e\u4e3ayes<\/p>\n
\u5b88\u62a4\u8fdb\u7a0b\uff0c\u540e\u53f0\u542f\u52a8<\/p>\n
\"image-20220516094623935\"<\/div><\/p>\n
4.4.2.<\/strong>  pidfile<\/strong><\/p>\n
\u5b58\u653epid\u6587\u4ef6\u7684\u4f4d\u7f6e\uff0c\u6bcf\u4e2a\u5b9e\u4f8b\u4f1a\u4ea7\u751f\u4e00\u4e2a\u4e0d\u540c\u7684pid\u6587\u4ef6<\/p>\n
\"image-20220516094647473\"<\/div><\/p>\n
4.4.3.<\/strong>  loglevel<\/strong> <\/p>\n
\u6307\u5b9a\u65e5\u5fd7\u8bb0\u5f55\u7ea7\u522b\uff0cRedis\u603b\u5171\u652f\u6301\u56db\u4e2a\u7ea7\u522b\uff1adebug\u3001verbose\u3001notice\u3001warning\uff0c\u9ed8\u8ba4\u4e3anotice<\/strong><\/p>\n
\u56db\u4e2a\u7ea7\u522b\u6839\u636e\u4f7f\u7528\u9636\u6bb5\u6765\u9009\u62e9\uff0c\u751f\u4ea7\u73af\u5883\u9009\u62e9notice \u6216\u8005warning<\/p>\n
\"image-20220516094654247\"<\/div><\/p>\n
4.4.4.<\/strong>  logfile<\/strong> <\/p>\n
\u65e5\u5fd7\u6587\u4ef6\u540d\u79f0<\/p>\n
\"image-20220516094659257\"<\/div><\/p>\n
4.4.5.<\/strong>  databases 16<\/p>\n
\u8bbe\u5b9a\u5e93\u7684\u6570\u91cf \u9ed8\u8ba416\uff0c\u9ed8\u8ba4\u6570\u636e\u5e93\u4e3a0\uff0c\u53ef\u4ee5\u4f7f\u7528SELECT \u547d\u4ee4\u5728\u8fde\u63a5\u4e0a\u6307\u5b9a\u6570\u636e\u5e93id<\/p>\n
\"image-20220516094710355\"<\/div><\/p>\n
4.5.<\/strong>  SECURITY\u5b89\u5168<\/h3>\n
4.5.1.<\/strong>  \u8bbe\u7f6e\u5bc6\u7801<\/strong><\/p>\n
\"image-20220516094725099\"<\/div><\/p>\n
\u8bbf\u95ee\u5bc6\u7801\u7684\u67e5\u770b\u3001\u8bbe\u7f6e\u548c\u53d6\u6d88<\/p>\n
\u5728\u547d\u4ee4\u4e2d\u8bbe\u7f6e\u5bc6\u7801\uff0c\u53ea\u662f\u4e34\u65f6\u7684\u3002\u91cd\u542fredis\u670d\u52a1\u5668\uff0c\u5bc6\u7801\u5c31\u8fd8\u539f\u4e86\u3002<\/p>\n
\u6c38\u4e45\u8bbe\u7f6e\uff0c\u9700\u8981\u518d\u914d\u7f6e\u6587\u4ef6\u4e2d\u8fdb\u884c\u8bbe\u7f6e\u3002<\/p>\n
\"image-20220516094733741\"<\/div><\/p>\n
4.6.<\/strong>  LIMITS\u9650\u5236<\/h3>\n
4.6.1.<\/strong>  maxclients<\/p>\n
\u00d8 \u8bbe\u7f6eredis\u540c\u65f6\u53ef\u4ee5\u4e0e\u591a\u5c11\u4e2a\u5ba2\u6237\u7aef\u8fdb\u884c\u8fde\u63a5\u3002<\/p>\n
\u00d8 \u9ed8\u8ba4\u60c5\u51b5\u4e0b\u4e3a10000\u4e2a\u5ba2\u6237\u7aef\u3002<\/p>\n
\u00d8 \u5982\u679c\u8fbe\u5230\u4e86\u6b64\u9650\u5236\uff0credis\u5219\u4f1a\u62d2\u7edd\u65b0\u7684\u8fde\u63a5\u8bf7\u6c42\uff0c\u5e76\u4e14\u5411\u8fd9\u4e9b\u8fde\u63a5\u8bf7\u6c42\u65b9\u53d1\u51fa\u201cmax number of clients reached\u201d\u4ee5\u4f5c\u56de\u5e94\u3002<\/p>\n
\"image-20220516095035592\"<\/div><\/p>\n
4.6.2.<\/strong>  maxmemory<\/p>\n
\u00d8 \u5efa\u8bae\u5fc5\u987b\u8bbe\u7f6e<\/strong>\uff0c\u5426\u5219\uff0c\u5c06\u5185\u5b58\u5360\u6ee1\uff0c\u9020\u6210\u670d\u52a1\u5668\u5b95\u673a<\/p>\n
\u00d8 \u8bbe\u7f6eredis\u53ef\u4ee5\u4f7f\u7528\u7684\u5185\u5b58\u91cf\u3002\u4e00\u65e6\u5230\u8fbe\u5185\u5b58\u4f7f\u7528\u4e0a\u9650\uff0credis\u5c06\u4f1a\u8bd5\u56fe\u79fb\u9664\u5185\u90e8\u6570\u636e\uff0c\u79fb\u9664\u89c4\u5219\u53ef\u4ee5\u901a\u8fc7maxmemory-policy\u6765\u6307\u5b9a\u3002<\/p>\n
\u00d8 \u5982\u679credis\u65e0\u6cd5\u6839\u636e\u79fb\u9664\u89c4\u5219\u6765\u79fb\u9664\u5185\u5b58\u4e2d\u7684\u6570\u636e\uff0c\u6216\u8005\u8bbe\u7f6e\u4e86\u201c\u4e0d\u5141\u8bb8\u79fb\u9664\u201d\uff0c\u90a3\u4e48redis\u5219\u4f1a\u9488\u5bf9\u90a3\u4e9b\u9700\u8981\u7533\u8bf7\u5185\u5b58\u7684\u6307\u4ee4\u8fd4\u56de\u9519\u8bef\u4fe1\u606f\uff0c\u6bd4\u5982SET\u3001LPUSH\u7b49\u3002<\/p>\n
\u00d8 \u4f46\u662f\u5bf9\u4e8e\u65e0\u5185\u5b58\u7533\u8bf7\u7684\u6307\u4ee4\uff0c\u4ecd\u7136\u4f1a\u6b63\u5e38\u54cd\u5e94\uff0c\u6bd4\u5982GET\u7b49\u3002\u5982\u679c\u4f60\u7684redis\u662f\u4e3bredis\uff08\u8bf4\u660e\u4f60\u7684redis\u6709\u4eceredis\uff09\uff0c\u90a3\u4e48\u5728\u8bbe\u7f6e\u5185\u5b58\u4f7f\u7528\u4e0a\u9650\u65f6\uff0c\u9700\u8981\u5728\u7cfb\u7edf\u4e2d\u7559\u51fa\u4e00\u4e9b\u5185\u5b58\u7a7a\u95f4\u7ed9\u540c\u6b65\u961f\u5217\u7f13\u5b58\uff0c\u53ea\u6709\u5728\u4f60\u8bbe\u7f6e\u7684\u662f\u201c\u4e0d\u79fb\u9664\u201d\u7684\u60c5\u51b5\u4e0b\uff0c\u624d\u4e0d\u7528\u8003\u8651\u8fd9\u4e2a\u56e0\u7d20\u3002<\/p>\n
\"image-20220516095050460\"<\/div><\/p>\n
4.6.3.<\/strong>  maxmemory-policy<\/p>\n
\u00d8 volatile-lru\uff1a\u4f7f\u7528LRU\u7b97\u6cd5\u79fb\u9664key\uff0c\u53ea\u5bf9\u8bbe\u7f6e\u4e86\u8fc7\u671f\u65f6\u95f4\u7684\u952e\uff1b\uff08\u6700\u8fd1\u6700\u5c11\u4f7f\u7528\uff09<\/p>\n
\u00d8 allkeys-lru\uff1a\u5728\u6240\u6709\u96c6\u5408key\u4e2d\uff0c\u4f7f\u7528LRU\u7b97\u6cd5\u79fb\u9664key<\/p>\n
\u00d8 volatile-random\uff1a\u5728\u8fc7\u671f\u96c6\u5408\u4e2d\u79fb\u9664\u968f\u673a\u7684key\uff0c\u53ea\u5bf9\u8bbe\u7f6e\u4e86\u8fc7\u671f\u65f6\u95f4\u7684\u952e<\/p>\n
\u00d8 allkeys-random\uff1a\u5728\u6240\u6709\u96c6\u5408key\u4e2d\uff0c\u79fb\u9664\u968f\u673a\u7684key<\/p>\n
\u00d8 volatile-ttl\uff1a\u79fb\u9664\u90a3\u4e9bTTL\u503c\u6700\u5c0f\u7684key\uff0c\u5373\u90a3\u4e9b\u6700\u8fd1\u8981\u8fc7\u671f\u7684key<\/p>\n
\u00d8 noeviction\uff1a\u4e0d\u8fdb\u884c\u79fb\u9664\u3002\u9488\u5bf9\u5199\u64cd\u4f5c\uff0c\u53ea\u662f\u8fd4\u56de\u9519\u8bef\u4fe1\u606f<\/p>\n
\"image-20220516095115626\"<\/div><\/p>\n
4.6.4.<\/strong>  maxmemory-samples<\/p>\n
\u00d8 \u8bbe\u7f6e\u6837\u672c\u6570\u91cf\uff0cLRU\u7b97\u6cd5\u548c\u6700\u5c0fTTL\u7b97\u6cd5\u90fd\u5e76\u975e\u662f\u7cbe\u786e\u7684\u7b97\u6cd5\uff0c\u800c\u662f\u4f30\u7b97\u503c\uff0c\u6240\u4ee5\u4f60\u53ef\u4ee5\u8bbe\u7f6e\u6837\u672c\u7684\u5927\u5c0f\uff0credis\u9ed8\u8ba4\u4f1a\u68c0\u67e5\u8fd9\u4e48\u591a\u4e2akey\u5e76\u9009\u62e9\u5176\u4e2dLRU\u7684\u90a3\u4e2a\u3002<\/p>\n
\u00d8 \u4e00\u822c\u8bbe\u7f6e3\u52307\u7684\u6570\u5b57\uff0c\u6570\u503c\u8d8a\u5c0f\u6837\u672c\u8d8a\u4e0d\u51c6\u786e\uff0c\u4f46\u6027\u80fd\u6d88\u8017\u8d8a\u5c0f\u3002<\/p>\n
\"image-20220516095136709\"<\/div><\/p>\n
5.<\/strong>  Redis\u7684\u53d1\u5e03\u548c\u8ba2\u9605<\/h2>\n
5.1.<\/strong>  \u4ec0\u4e48\u662f\u53d1\u5e03\u548c\u8ba2\u9605<\/strong><\/h3>\n
Redis \u53d1\u5e03\u8ba2\u9605 (pub\/sub) \u662f\u4e00\u79cd\u6d88\u606f\u901a\u4fe1\u6a21\u5f0f\uff1a\u53d1\u9001\u8005 (pub) \u53d1\u9001\u6d88\u606f\uff0c\u8ba2\u9605\u8005 (sub) \u63a5\u6536\u6d88\u606f\u3002<\/p>\n
Redis \u5ba2\u6237\u7aef\u53ef\u4ee5\u8ba2\u9605\u4efb\u610f\u6570\u91cf\u7684\u9891\u9053\u3002<\/p>\n
5.2.<\/strong>  Redis\u7684\u53d1\u5e03\u548c\u8ba2\u9605<\/h3>\n
1\u3001\u5ba2\u6237\u7aef\u53ef\u4ee5\u8ba2\u9605\u9891\u9053\u5982\u4e0b\u56fe<\/p>\n
\"image-20220516095445985\"<\/div><\/p>\n
2\u3001\u5f53\u7ed9\u8fd9\u4e2a\u9891\u9053\u53d1\u5e03\u6d88\u606f\u540e\uff0c\u6d88\u606f\u5c31\u4f1a\u53d1\u9001\u7ed9\u8ba2\u9605\u7684\u5ba2\u6237\u7aef<\/p>\n
\"image-20220516095449129\"<\/div><\/p>\n
5.3.<\/strong>  \u53d1\u5e03\u8ba2\u9605\u547d\u4ee4\u884c\u5b9e\u73b0<\/strong><\/h3>\n
1\u3001 \u6253\u5f00\u4e00\u4e2a\u5ba2\u6237\u7aef\u8ba2\u9605channel1<\/p>\n
SUBSCRIBE channel1<\/p>\n
\"image-20220516095642975\"<\/div><\/p>\n
2\u3001\u6253\u5f00\u53e6\u4e00\u4e2a\u5ba2\u6237\u7aef\uff0c\u7ed9channel1\u53d1\u5e03\u6d88\u606fhello<\/p>\n
publish channel1 hello<\/p>\n
\"image-20220516095648719\"<\/div><\/p>\n
\u8fd4\u56de\u76841\u662f\u8ba2\u9605\u8005\u6570\u91cf<\/p>\n
3\u3001\u6253\u5f00\u7b2c\u4e00\u4e2a\u5ba2\u6237\u7aef\u53ef\u4ee5\u770b\u5230\u53d1\u9001\u7684\u6d88\u606f<\/p>\n
\"image-20220516095653753\"<\/div><\/p>\n
\u6ce8\uff1a\u53d1\u5e03\u7684\u6d88\u606f\u6ca1\u6709\u6301\u4e45\u5316\uff0c\u5982\u679c\u5728\u8ba2\u9605\u7684\u5ba2\u6237\u7aef\u6536\u4e0d\u5230hello\uff0c\u53ea\u80fd\u6536\u5230\u8ba2\u9605\u540e\u53d1\u5e03\u7684\u6d88\u606f<\/p>\n
6.<\/strong>  Redis\u65b0\u6570\u636e\u7c7b\u578b<\/h2>\n
6.1.<\/strong>  Bitmaps<\/strong><\/h3>\n
6.1.1.<\/strong>  \u7b80\u4ecb<\/strong><\/p>\n
\u73b0\u4ee3\u8ba1\u7b97\u673a\u7528\u4e8c\u8fdb\u5236\uff08\u4f4d\uff09 \u4f5c\u4e3a\u4fe1\u606f\u7684\u57fa\u7840\u5355\u4f4d\uff0c 1\u4e2a\u5b57\u8282\u7b49\u4e8e8\u4f4d\uff0c \u4f8b\u5982\u201cabc\u201d\u5b57\u7b26\u4e32\u662f\u75313\u4e2a\u5b57\u8282\u7ec4\u6210\uff0c \u4f46\u5b9e\u9645\u5728\u8ba1\u7b97\u673a\u5b58\u50a8\u65f6\u5c06\u5176\u7528\u4e8c\u8fdb\u5236\u8868\u793a\uff0c \u201cabc\u201d\u5206\u522b\u5bf9\u5e94\u7684ASCII\u7801\u5206\u522b\u662f97\u3001 98\u3001 99\uff0c \u5bf9\u5e94\u7684\u4e8c\u8fdb\u5236\u5206\u522b\u662f01100001\u3001 01100010\u548c01100011\uff0c\u5982\u4e0b\u56fe<\/p>\n
\"image-20220516095721673\"<\/div><\/p>\n
\u5408\u7406\u5730\u4f7f\u7528\u64cd\u4f5c\u4f4d\u80fd\u591f\u6709\u6548\u5730\u63d0\u9ad8\u5185\u5b58\u4f7f\u7528\u7387\u548c\u5f00\u53d1\u6548\u7387\u3002<\/p>\n
Redis\u63d0\u4f9b\u4e86Bitmaps\u8fd9\u4e2a\u201c\u6570\u636e\u7c7b\u578b\u201d\u53ef\u4ee5\u5b9e\u73b0\u5bf9\u4f4d\u7684\u64cd\u4f5c\uff1a<\/p>\n
\uff081\uff09  Bitmaps\u672c\u8eab\u4e0d\u662f\u4e00\u79cd\u6570\u636e\u7c7b\u578b\uff0c \u5b9e\u9645\u4e0a\u5b83\u5c31\u662f\u5b57\u7b26\u4e32\uff08key-value\uff09 \uff0c \u4f46\u662f\u5b83\u53ef\u4ee5\u5bf9\u5b57\u7b26\u4e32\u7684\u4f4d\u8fdb\u884c\u64cd\u4f5c\u3002<\/p>\n
\uff082\uff09  Bitmaps\u5355\u72ec\u63d0\u4f9b\u4e86\u4e00\u5957\u547d\u4ee4\uff0c \u6240\u4ee5\u5728Redis\u4e2d\u4f7f\u7528Bitmaps\u548c\u4f7f\u7528\u5b57\u7b26\u4e32\u7684\u65b9\u6cd5\u4e0d\u592a\u76f8\u540c\u3002 \u53ef\u4ee5\u628aBitmaps\u60f3\u8c61\u6210\u4e00\u4e2a\u4ee5\u4f4d\u4e3a\u5355\u4f4d\u7684\u6570\u7ec4\uff0c \u6570\u7ec4\u7684\u6bcf\u4e2a\u5355\u5143\u53ea\u80fd\u5b58\u50a80\u548c1\uff0c \u6570\u7ec4\u7684\u4e0b\u6807\u5728Bitmaps\u4e2d\u53eb\u505a\u504f\u79fb\u91cf\u3002<\/p>\n
\"image-20220516095836252\"<\/div><\/p>\n
6.1.2.<\/strong>  \u547d\u4ee4<\/strong><\/p>\n
1\u3001setbit<\/p>\n
\uff081\uff09\u683c\u5f0f<\/p>\n
setbit \\\\\\\u8bbe\u7f6eBitmaps\u4e2d\u67d0\u4e2a\u504f\u79fb\u91cf\u7684\u503c\uff080\u62161\uff09<\/p>\n
\"image-20220516095848796\"<\/div><\/p>\n
*offset:\u504f\u79fb\u91cf\u4ece0\u5f00\u59cb<\/p>\n
\uff082\uff09\u5b9e\u4f8b<\/p>\n
\u6bcf\u4e2a\u72ec\u7acb\u7528\u6237\u662f\u5426\u8bbf\u95ee\u8fc7\u7f51\u7ad9\u5b58\u653e\u5728Bitmaps\u4e2d\uff0c \u5c06\u8bbf\u95ee\u7684\u7528\u6237\u8bb0\u505a1\uff0c \u6ca1\u6709\u8bbf\u95ee\u7684\u7528\u6237\u8bb0\u505a0\uff0c \u7528\u504f\u79fb\u91cf\u4f5c\u4e3a\u7528\u6237\u7684id\u3002<\/p>\n
\u8bbe\u7f6e\u952e\u7684\u7b2coffset\u4e2a\u4f4d\u7684\u503c\uff08\u4ece0\u7b97\u8d77\uff09 \uff0c \u5047\u8bbe\u73b0\u5728\u670920\u4e2a\u7528\u6237\uff0cuserid=1\uff0c 6\uff0c 11\uff0c 15\uff0c 19\u7684\u7528\u6237\u5bf9\u7f51\u7ad9\u8fdb\u884c\u4e86\u8bbf\u95ee\uff0c \u90a3\u4e48\u5f53\u524dBitmaps\u521d\u59cb\u5316\u7ed3\u679c\u5982\u56fe<\/p>\n
\"image-20220516095938406\"<\/div><\/p>\n
unique:users:20201106\u4ee3\u88682020-11-06\u8fd9\u5929\u7684\u72ec\u7acb\u8bbf\u95ee\u7528\u6237\u7684Bitmaps<\/p>\n
\"image-20220516100143485\"<\/div><\/p>\n
\u6ce8\uff1a<\/p>\n
\u5f88\u591a\u5e94\u7528\u7684\u7528\u6237id\u4ee5\u4e00\u4e2a\u6307\u5b9a\u6570\u5b57\uff08\u4f8b\u598210000\uff09 \u5f00\u5934\uff0c \u76f4\u63a5\u5c06\u7528\u6237id\u548cBitmaps\u7684\u504f\u79fb\u91cf\u5bf9\u5e94\u52bf\u5fc5\u4f1a\u9020\u6210\u4e00\u5b9a\u7684\u6d6a\u8d39\uff0c \u901a\u5e38\u7684\u505a\u6cd5\u662f\u6bcf\u6b21\u505asetbit\u64cd\u4f5c\u65f6\u5c06\u7528\u6237id\u51cf\u53bb\u8fd9\u4e2a\u6307\u5b9a\u6570\u5b57\u3002<\/p>\n
\u5728\u7b2c\u4e00\u6b21\u521d\u59cb\u5316Bitmaps\u65f6\uff0c \u5047\u5982\u504f\u79fb\u91cf\u975e\u5e38\u5927\uff0c \u90a3\u4e48\u6574\u4e2a\u521d\u59cb\u5316\u8fc7\u7a0b\u6267\u884c\u4f1a\u6bd4\u8f83\u6162\uff0c \u53ef\u80fd\u4f1a\u9020\u6210Redis\u7684\u963b\u585e\u3002<\/p>\n
2\u3001getbit<\/p>\n
\uff081\uff09\u683c\u5f0f<\/p>\n
getbit\\\\\u83b7\u53d6Bitmaps\u4e2d\u67d0\u4e2a\u504f\u79fb\u91cf\u7684\u503c<\/p>\n
\"image-20220516100231399\"<\/div><\/p>\n
\u83b7\u53d6\u952e\u7684\u7b2coffset\u4f4d\u7684\u503c\uff08\u4ece0\u5f00\u59cb\u7b97\uff09<\/p>\n
\uff082\uff09\u5b9e\u4f8b<\/p>\n
\u83b7\u53d6id=8\u7684\u7528\u6237\u662f\u5426\u57282020-11-06\u8fd9\u5929\u8bbf\u95ee\u8fc7\uff0c \u8fd4\u56de0\u8bf4\u660e\u6ca1\u6709\u8bbf\u95ee\u8fc7\uff1a<\/p>\n
\"image-20220516100313167\"<\/div><\/p>\n
\u6ce8\uff1a\u56e0\u4e3a100\u6839\u672c\u4e0d\u5b58\u5728\uff0c\u6240\u4ee5\u4e5f\u662f\u8fd4\u56de0<\/p>\n
3\u3001bitcount<\/p>\n
\u7edf\u8ba1\u5b57\u7b26\u4e32<\/strong>\u88ab\u8bbe\u7f6e\u4e3a1\u7684bit\u6570\u3002\u4e00\u822c\u60c5\u51b5\u4e0b\uff0c\u7ed9\u5b9a\u7684\u6574\u4e2a\u5b57\u7b26\u4e32\u90fd\u4f1a\u88ab\u8fdb\u884c\u8ba1\u6570\uff0c\u901a\u8fc7\u6307\u5b9a\u989d\u5916\u7684 start \u6216 end \u53c2\u6570\uff0c\u53ef\u4ee5\u8ba9\u8ba1\u6570\u53ea\u5728\u7279\u5b9a\u7684\u4f4d\u4e0a\u8fdb\u884c\u3002start \u548c end \u53c2\u6570\u7684\u8bbe\u7f6e\uff0c\u90fd\u53ef\u4ee5\u4f7f\u7528\u8d1f\u6570\u503c\uff1a\u6bd4\u5982 -1 \u8868\u793a\u6700\u540e\u4e00\u4e2a\u4f4d\uff0c\u800c -2 \u8868\u793a\u5012\u6570\u7b2c\u4e8c\u4e2a\u4f4d\uff0cstart\u3001end \u662f\u6307bit\u7ec4\u7684\u5b57\u8282\u7684\u4e0b\u6807\u6570\uff0c\u4e8c\u8005\u7686\u5305\u542b\u3002<\/p>\n
\uff081\uff09\u683c\u5f0f<\/p>\n
bitcount\\[start end] \u7edf\u8ba1\u5b57\u7b26\u4e32\u4ecestart\u5b57\u8282\u5230end\u5b57\u8282\u6bd4\u7279\u503c\u4e3a1\u7684\u6570\u91cf<\/p>\n
\"image-20220516100325683\"<\/div><\/p>\n
\uff082\uff09\u5b9e\u4f8b<\/p>\n
\u8ba1\u7b972022-11-06\u8fd9\u5929\u7684\u72ec\u7acb\u8bbf\u95ee\u7528\u6237\u6570\u91cf<\/p>\n
\"image-20220516100338267\"<\/div><\/p>\n
start\u548cend\u4ee3\u8868\u8d77\u59cb\u548c\u7ed3\u675f\u5b57\u8282\u6570\uff0c \u4e0b\u9762\u64cd\u4f5c\u8ba1\u7b97\u7528\u6237id\u5728\u7b2c1\u4e2a\u5b57\u8282\u5230\u7b2c3\u4e2a\u5b57\u8282\u4e4b\u95f4\u7684\u72ec\u7acb\u8bbf\u95ee\u7528\u6237\u6570\uff0c \u5bf9\u5e94\u7684\u7528\u6237id\u662f11\uff0c 15\uff0c 19\u3002<\/p>\n
\"image-20220516100341603\"<\/div><\/p>\n
\u4e3e\u4f8b\uff1a K1 \u301001000001 01000000 00000000 00100001\u3011\uff0c\u5bf9\u5e94\u30100\uff0c1\uff0c2\uff0c3\u3011<\/p>\n
bitcount K1 1 2 \uff1a \u7edf\u8ba1\u4e0b\u68071\u30012\u5b57\u8282\u7ec4\u4e2dbit=1\u7684\u4e2a\u6570\uff0c\u537301000000 00000000<\/p>\n
--\u300bbitcount K1 1 2 \u3000\u3000--\u300b1<\/p>\n
bitcount K1 1 3 \uff1a \u7edf\u8ba1\u4e0b\u68071\u30012\u5b57\u8282\u7ec4\u4e2dbit=1\u7684\u4e2a\u6570\uff0c\u537301000000 00000000 00100001<\/p>\n
--\u300bbitcount K1 1 3\u3000\u3000--\u300b3<\/p>\n
bitcount K1 0 -2 \uff1a \u7edf\u8ba1\u4e0b\u68070\u5230\u4e0b\u6807\u5012\u6570\u7b2c2\uff0c\u5b57\u8282\u7ec4\u4e2dbit=1\u7684\u4e2a\u6570\uff0c\u537301000001 01000000  00000000<\/p>\n
--\u300bbitcount K1 0 -2\u3000\u3000--\u300b3<\/p>\n
\u6ce8\u610f\uff1aredis\u7684setbit\u8bbe\u7f6e\u6216\u6e05\u9664\u7684\u662fbit\u4f4d\u7f6e\uff0c\u800cbitcount\u8ba1\u7b97\u7684\u662fbyte\u4f4d\u7f6e\u3002<\/p>\n
4\u3001bitop<\/p>\n
(1)\u683c\u5f0f<\/p>\n
bitop and(or\/not\/xor) \\ [key\u2026]<\/p>\n
\"image-20220516100404601\"<\/div><\/p>\n
bitop\u662f\u4e00\u4e2a\u590d\u5408\u64cd\u4f5c\uff0c \u5b83\u53ef\u4ee5\u505a\u591a\u4e2aBitmaps\u7684and\uff08\u4ea4\u96c6\uff09 \u3001 or\uff08\u5e76\u96c6\uff09 \u3001 not\uff08\u975e\uff09 \u3001 xor\uff08\u5f02\u6216\uff09 \u64cd\u4f5c\u5e76\u5c06\u7ed3\u679c\u4fdd\u5b58\u5728destkey\u4e2d\u3002<\/p>\n
(2)\u5b9e\u4f8b<\/p>\n
2020-11-04 \u65e5\u8bbf\u95ee\u7f51\u7ad9\u7684userid=1,2,5,9\u3002<\/p>\n
setbit unique:users:20201104 1 1<\/p>\n
setbit unique:users:20201104 2 1<\/p>\n
setbit unique:users:20201104 5 1<\/p>\n
setbit unique:users:20201104 9 1<\/p>\n
2020-11-03 \u65e5\u8bbf\u95ee\u7f51\u7ad9\u7684userid=0,1,4,9\u3002<\/p>\n
setbit unique:users:20201103 0 1<\/p>\n
setbit unique:users:20201103 1 1<\/p>\n
setbit unique:users:20201103 4 1<\/p>\n
setbit unique:users:20201103 9 1<\/p>\n
\u8ba1\u7b97\u51fa\u4e24\u5929\u90fd\u8bbf\u95ee\u8fc7\u7f51\u7ad9\u7684\u7528\u6237\u6570\u91cf<\/p>\n
bitop and unique:users:and:20201104_03<\/p>\n
unique:users:20201103unique:users:20201104<\/p>\n
\"image-20220516100442161\"<\/div><\/p>\n
\"image-20220516100455427\"<\/div><\/p>\n
\u8ba1\u7b97\u51fa\u4efb\u610f\u4e00\u5929\u90fd\u8bbf\u95ee\u8fc7\u7f51\u7ad9\u7684\u7528\u6237\u6570\u91cf\uff08\u4f8b\u5982\u6708\u6d3b\u8dc3\u5c31\u662f\u7c7b\u4f3c\u8fd9\u79cd\uff09 \uff0c \u53ef\u4ee5\u4f7f\u7528or\u6c42\u5e76\u96c6<\/p>\n
\"image-20220516100505051\"<\/div><\/p>\n
6.1.3.<\/strong>  Bitmaps\u4e0eset\u5bf9\u6bd4<\/p>\n
\u5047\u8bbe\u7f51\u7ad9\u67091\u4ebf\u7528\u6237\uff0c \u6bcf\u5929\u72ec\u7acb\u8bbf\u95ee\u7684\u7528\u6237\u67095\u5343\u4e07\uff0c \u5982\u679c\u6bcf\u5929\u7528\u96c6\u5408\u7c7b\u578b\u548cBitmaps\u5206\u522b\u5b58\u50a8\u6d3b\u8dc3\u7528\u6237\u53ef\u4ee5\u5f97\u5230\u8868<\/p>\n
set\u548cBitmaps\u5b58\u50a8\u4e00\u5929\u6d3b\u8dc3\u7528\u6237\u5bf9\u6bd4<\/p>\n\n\n\n\n\n\n\n
<\/th>\n<\/th>\n<\/th>\n<\/th>\n<\/tr>\n<\/thead>\n
\u6570\u636e\u7c7b\u578b<\/td>\n\u6bcf\u4e2a\u7528\u6237id\u5360\u7528\u7a7a\u95f4<\/td>\n\u9700\u8981\u5b58\u50a8\u7684\u7528\u6237\u91cf<\/td>\n\u5168\u90e8\u5185\u5b58\u91cf<\/td>\n<\/tr>\n
\u96c6\u5408\u7c7b\u578b<\/td>\n64\u4f4d<\/td>\n50000000<\/td>\n64\u4f4d*50000000 = 400MB<\/td>\n<\/tr>\n
Bitmaps<\/td>\n1\u4f4d<\/td>\n100000000<\/td>\n1\u4f4d*100000000 = 12.5MB<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n
\u5f88\u660e\u663e\uff0c \u8fd9\u79cd\u60c5\u51b5\u4e0b\u4f7f\u7528Bitmaps\u80fd\u8282\u7701\u5f88\u591a\u7684\u5185\u5b58\u7a7a\u95f4\uff0c \u5c24\u5176\u662f\u968f\u7740\u65f6\u95f4\u63a8\u79fb\u8282\u7701\u7684\u5185\u5b58\u8fd8\u662f\u975e\u5e38\u53ef\u89c2\u7684<\/p>\n
set\u548cBitmaps\u5b58\u50a8\u72ec\u7acb\u7528\u6237\u7a7a\u95f4\u5bf9\u6bd4<\/p>\n\n\n\n\n\n\n\n
<\/th>\n<\/th>\n<\/th>\n<\/th>\n<\/tr>\n<\/thead>\n
\u6570\u636e\u7c7b\u578b<\/td>\n\u4e00\u5929<\/td>\n\u4e00\u4e2a\u6708<\/td>\n\u4e00\u5e74<\/td>\n<\/tr>\n
\u96c6\u5408\u7c7b\u578b<\/td>\n400MB<\/td>\n12GB<\/td>\n144GB<\/td>\n<\/tr>\n
Bitmaps<\/td>\n12.5MB<\/td>\n375MB<\/td>\n4.5GB<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n
\u4f46Bitmaps\u5e76\u4e0d\u662f\u4e07\u91d1\u6cb9\uff0c \u5047\u5982\u8be5\u7f51\u7ad9\u6bcf\u5929\u7684\u72ec\u7acb\u8bbf\u95ee\u7528\u6237\u5f88\u5c11\uff0c \u4f8b\u5982\u53ea\u670910\u4e07\uff08\u5927\u91cf\u7684\u50f5\u5c38\u7528\u6237\uff09 \uff0c \u90a3\u4e48\u4e24\u8005\u7684\u5bf9\u6bd4\u5982\u4e0b\u8868\u6240\u793a\uff0c \u5f88\u663e\u7136\uff0c \u8fd9\u65f6\u5019\u4f7f\u7528Bitmaps\u5c31\u4e0d\u592a\u5408\u9002\u4e86\uff0c \u56e0\u4e3a\u57fa\u672c\u4e0a\u5927\u90e8\u5206\u4f4d\u90fd\u662f0\u3002<\/p>\n
set\u548cBitmaps\u5b58\u50a8\u4e00\u5929\u6d3b\u8dc3\u7528\u6237\u5bf9\u6bd4\uff08\u72ec\u7acb\u7528\u6237\u6bd4\u8f83\u5c11\uff09<\/p>\n\n\n\n\n\n\n\n
<\/th>\n<\/th>\n<\/th>\n<\/th>\n<\/tr>\n<\/thead>\n
\u6570\u636e\u7c7b\u578b<\/td>\n\u6bcf\u4e2auserid\u5360\u7528\u7a7a\u95f4<\/td>\n\u9700\u8981\u5b58\u50a8\u7684\u7528\u6237\u91cf<\/td>\n\u5168\u90e8\u5185\u5b58\u91cf<\/td>\n<\/tr>\n
\u96c6\u5408\u7c7b\u578b<\/td>\n64\u4f4d<\/td>\n100000<\/td>\n64\u4f4d*100000 = 800KB<\/td>\n<\/tr>\n
Bitmaps<\/td>\n1\u4f4d<\/td>\n100000000<\/td>\n1\u4f4d*100000000 = 12.5MB<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n
6.2.<\/strong> HyperLogLog<\/strong><\/h3>\n
6.2.1.<\/strong>  \u7b80\u4ecb<\/strong><\/p>\n
\u5728\u5de5\u4f5c\u5f53\u4e2d\uff0c\u6211\u4eec\u7ecf\u5e38\u4f1a\u9047\u5230\u4e0e\u7edf\u8ba1\u76f8\u5173\u7684\u529f\u80fd\u9700\u6c42\uff0c\u6bd4\u5982\u7edf\u8ba1\u7f51\u7ad9PV\uff08PageView\u9875\u9762\u8bbf\u95ee\u91cf\uff09,\u53ef\u4ee5\u4f7f\u7528Redis\u7684incr\u3001incrby\u8f7b\u677e\u5b9e\u73b0\u3002<\/p>\n
\u4f46\u50cfUV\uff08UniqueVisitor\uff0c\u72ec\u7acb\u8bbf\u5ba2\uff09\u3001\u72ec\u7acbIP\u6570\u3001\u641c\u7d22\u8bb0\u5f55\u6570\u7b49\u9700\u8981\u53bb\u91cd\u548c\u8ba1\u6570\u7684\u95ee\u9898\u5982\u4f55\u89e3\u51b3\uff1f\u8fd9\u79cd\u6c42\u96c6\u5408\u4e2d\u4e0d\u91cd\u590d\u5143\u7d20\u4e2a\u6570\u7684\u95ee\u9898\u79f0\u4e3a\u57fa\u6570\u95ee\u9898\u3002<\/p>\n
\u89e3\u51b3\u57fa\u6570\u95ee\u9898\u6709\u5f88\u591a\u79cd\u65b9\u6848\uff1a<\/p>\n
\uff081\uff09\u6570\u636e\u5b58\u50a8\u5728MySQL\u8868\u4e2d\uff0c\u4f7f\u7528distinct count\u8ba1\u7b97\u4e0d\u91cd\u590d\u4e2a\u6570<\/p>\n
\uff082\uff09\u4f7f\u7528Redis\u63d0\u4f9b\u7684hash\u3001set\u3001bitmaps\u7b49\u6570\u636e\u7ed3\u6784\u6765\u5904\u7406<\/p>\n
\u4ee5\u4e0a\u7684\u65b9\u6848\u7ed3\u679c\u7cbe\u786e\uff0c\u4f46\u968f\u7740\u6570\u636e\u4e0d\u65ad\u589e\u52a0\uff0c\u5bfc\u81f4\u5360\u7528\u7a7a\u95f4\u8d8a\u6765\u8d8a\u5927\uff0c\u5bf9\u4e8e\u975e\u5e38\u5927\u7684\u6570\u636e\u96c6\u662f\u4e0d\u5207\u5b9e\u9645\u7684\u3002<\/p>\n
\u80fd\u5426\u80fd\u591f\u964d\u4f4e\u4e00\u5b9a\u7684\u7cbe\u5ea6\u6765\u5e73\u8861\u5b58\u50a8\u7a7a\u95f4\uff1fRedis\u63a8\u51fa\u4e86HyperLogLog<\/p>\n
Redis HyperLogLog \u662f\u7528\u6765\u505a\u57fa\u6570\u7edf\u8ba1\u7684\u7b97\u6cd5\uff0cHyperLogLog \u7684\u4f18\u70b9\u662f\uff0c\u5728\u8f93\u5165\u5143\u7d20\u7684\u6570\u91cf\u6216\u8005\u4f53\u79ef\u975e\u5e38\u975e\u5e38\u5927\u65f6\uff0c\u8ba1\u7b97\u57fa\u6570\u6240\u9700\u7684\u7a7a\u95f4\u603b\u662f\u56fa\u5b9a\u7684\u3001\u5e76\u4e14\u662f\u5f88\u5c0f\u7684\u3002<\/p>\n
\u5728 Redis \u91cc\u9762\uff0c\u6bcf\u4e2a HyperLogLog \u952e\u53ea\u9700\u8981\u82b1\u8d39 12 KB \u5185\u5b58\uff0c\u5c31\u53ef\u4ee5\u8ba1\u7b97\u63a5\u8fd1 2^64 \u4e2a\u4e0d\u540c\u5143\u7d20\u7684\u57fa\u6570\u3002\u8fd9\u548c\u8ba1\u7b97\u57fa\u6570\u65f6\uff0c\u5143\u7d20\u8d8a\u591a\u8017\u8d39\u5185\u5b58\u5c31\u8d8a\u591a\u7684\u96c6\u5408\u5f62\u6210\u9c9c\u660e\u5bf9\u6bd4\u3002<\/p>\n
\u4f46\u662f\uff0c\u56e0\u4e3a HyperLogLog \u53ea\u4f1a\u6839\u636e\u8f93\u5165\u5143\u7d20\u6765\u8ba1\u7b97\u57fa\u6570\uff0c\u800c\u4e0d\u4f1a\u50a8\u5b58\u8f93\u5165\u5143\u7d20\u672c\u8eab\uff0c\u6240\u4ee5 HyperLogLog \u4e0d\u80fd\u50cf\u96c6\u5408\u90a3\u6837\uff0c\u8fd4\u56de\u8f93\u5165\u7684\u5404\u4e2a\u5143\u7d20\u3002<\/p>\n
\u4ec0\u4e48\u662f\u57fa\u6570?<\/p>\n
\u6bd4\u5982\u6570\u636e\u96c6 {1, 3, 5, 7, 5, 7, 8}\uff0c \u90a3\u4e48\u8fd9\u4e2a\u6570\u636e\u96c6\u7684\u57fa\u6570\u96c6\u4e3a {1, 3, 5 ,7, 8}, \u57fa\u6570(\u4e0d\u91cd\u590d\u5143\u7d20)\u4e3a5\u3002 \u57fa\u6570\u4f30\u8ba1\u5c31\u662f\u5728\u8bef\u5dee\u53ef\u63a5\u53d7\u7684\u8303\u56f4\u5185\uff0c\u5feb\u901f\u8ba1\u7b97\u57fa\u6570\u3002<\/p>\n
6.2.2.<\/strong>  \u547d\u4ee4<\/strong><\/p>\n
1\u3001pfadd <\/p>\n
\uff081\uff09\u683c\u5f0f<\/p>\n
pfadd \\< element> [element ...]  \u6dfb\u52a0\u6307\u5b9a\u5143\u7d20\u5230 HyperLogLog \u4e2d<\/p>\n
\"image-20220516104558712\"<\/div><\/p>\n
\uff082\uff09\u5b9e\u4f8b<\/p>\n
\"image-20220516104602595\"<\/div><\/p>\n
\u5c06\u6240\u6709\u5143\u7d20\u6dfb\u52a0\u5230\u6307\u5b9aHyperLogLog\u6570\u636e\u7ed3\u6784\u4e2d\u3002\u5982\u679c\u6267\u884c\u547d\u4ee4\u540eHLL\u4f30\u8ba1\u7684\u8fd1\u4f3c\u57fa\u6570\u53d1\u751f\u53d8\u5316\uff0c\u5219\u8fd4\u56de1\uff0c\u5426\u5219\u8fd4\u56de0\u3002<\/p>\n
2\u3001pfcount<\/p>\n
\uff081\uff09\u683c\u5f0f<\/p>\n
pfcount\\ [key ...] \u8ba1\u7b97HLL\u7684\u8fd1\u4f3c\u57fa\u6570\uff0c\u53ef\u4ee5\u8ba1\u7b97\u591a\u4e2aHLL\uff0c\u6bd4\u5982\u7528HLL\u5b58\u50a8\u6bcf\u5929\u7684UV\uff0c\u8ba1\u7b97\u4e00\u5468\u7684UV\u53ef\u4ee5\u4f7f\u75287\u5929\u7684UV\u5408\u5e76\u8ba1\u7b97\u5373\u53ef<\/p>\n
\"image-20220516104609642\"<\/div><\/p>\n
\uff082\uff09\u5b9e\u4f8b<\/p>\n
\"image-20220516104615453\"<\/div><\/p>\n
3\u3001pfmerge<\/p>\n
\uff081\uff09\u683c\u5f0f<\/p>\n
pfmerge\\\\[sourcekey ...] \u5c06\u4e00\u4e2a\u6216\u591a\u4e2aHLL\u5408\u5e76\u540e\u7684\u7ed3\u679c\u5b58\u50a8\u5728\u53e6\u4e00\u4e2aHLL\u4e2d\uff0c\u6bd4\u5982\u6bcf\u6708\u6d3b\u8dc3\u7528\u6237\u53ef\u4ee5\u4f7f\u7528\u6bcf\u5929\u7684\u6d3b\u8dc3\u7528\u6237\u6765\u5408\u5e76\u8ba1\u7b97\u53ef\u5f97<\/p>\n
\"image-20220516104622061\"<\/div><\/p>\n
\uff082\uff09\u5b9e\u4f8b<\/p>\n
\"image-20220516104633238\"<\/div><\/p>\n
6.3.<\/strong>  Geospatial<\/strong><\/h3>\n
6.3.1.<\/strong>  \u7b80\u4ecb<\/strong><\/p>\n
Redis 3.2 \u4e2d\u589e\u52a0\u4e86\u5bf9GEO\u7c7b\u578b\u7684\u652f\u6301\u3002GEO\uff0cGeographic\uff0c\u5730\u7406\u4fe1\u606f\u7684\u7f29\u5199\u3002\u8be5\u7c7b\u578b\uff0c\u5c31\u662f\u5143\u7d20\u76842\u7ef4\u5750\u6807\uff0c\u5728\u5730\u56fe\u4e0a\u5c31\u662f\u7ecf\u7eac\u5ea6\u3002redis\u57fa\u4e8e\u8be5\u7c7b\u578b\uff0c\u63d0\u4f9b\u4e86\u7ecf\u7eac\u5ea6\u8bbe\u7f6e\uff0c\u67e5\u8be2\uff0c\u8303\u56f4\u67e5\u8be2\uff0c\u8ddd\u79bb\u67e5\u8be2\uff0c\u7ecf\u7eac\u5ea6Hash\u7b49\u5e38\u89c1\u64cd\u4f5c\u3002<\/p>\n
6.3.2.<\/strong>  \u547d\u4ee4<\/strong><\/p>\n
1\u3001geoadd<\/p>\n
\uff081\uff09\u683c\u5f0f<\/p>\n
geoadd\\< longitude>\\\\ [longitude latitude member...]  \u6dfb\u52a0\u5730\u7406\u4f4d\u7f6e\uff08\u7ecf\u5ea6\uff0c\u7eac\u5ea6\uff0c\u540d\u79f0\uff09<\/p>\n
\"image-20220516104645030\"<\/div><\/p>\n
\uff082\uff09\u5b9e\u4f8b<\/p>\n
geoadd china:city 121.47 31.23 shanghai<\/p>\n
geoadd china:city 106.50 29.53 chongqing 114.05 22.52 shenzhen 116.38 39.90 beijing<\/p>\n
\"image-20220516104746142\"<\/div><\/p>\n
\u4e24\u6781\u65e0\u6cd5\u76f4\u63a5\u6dfb\u52a0\uff0c\u4e00\u822c\u4f1a\u4e0b\u8f7d\u57ce\u5e02\u6570\u636e\uff0c\u76f4\u63a5\u901a\u8fc7 Java \u7a0b\u5e8f\u4e00\u6b21\u6027\u5bfc\u5165\u3002<\/p>\n
\u6709\u6548\u7684\u7ecf\u5ea6\u4ece -180 \u5ea6\u5230 180 \u5ea6\u3002\u6709\u6548\u7684\u7eac\u5ea6\u4ece -85.05112878 \u5ea6\u5230 85.05112878 \u5ea6\u3002<\/p>\n
\u5f53\u5750\u6807\u4f4d\u7f6e\u8d85\u51fa\u6307\u5b9a\u8303\u56f4\u65f6\uff0c\u8be5\u547d\u4ee4\u5c06\u4f1a\u8fd4\u56de\u4e00\u4e2a\u9519\u8bef\u3002<\/p>\n
\u5df2\u7ecf\u6dfb\u52a0\u7684\u6570\u636e\uff0c\u662f\u65e0\u6cd5\u518d\u6b21\u5f80\u91cc\u9762\u6dfb\u52a0\u7684\u3002<\/p>\n
2\u3001geopos <\/p>\n
\uff081\uff09\u683c\u5f0f<\/p>\n
geopos \\\\ [member...] \u83b7\u5f97\u6307\u5b9a\u5730\u533a\u7684\u5750\u6807\u503c<\/p>\n
\"image-20220516104800208\"<\/div><\/p>\n
\uff082\uff09\u5b9e\u4f8b<\/p>\n
\"image-20220516104816752\"<\/div><\/p>\n
3\u3001geodist<\/p>\n
\uff081\uff09\u683c\u5f0f<\/p>\n
geodist\\\\\\ [m|km|ft|mi ] \u83b7\u53d6\u4e24\u4e2a\u4f4d\u7f6e\u4e4b\u95f4\u7684\u76f4\u7ebf\u8ddd\u79bb<\/p>\n
\"image-20220516104846944\"<\/div><\/p>\n
\uff082\uff09\u5b9e\u4f8b<\/p>\n
\u83b7\u53d6\u4e24\u4e2a\u4f4d\u7f6e\u4e4b\u95f4\u7684\u76f4\u7ebf\u8ddd\u79bb<\/p>\n
\"image-20220516104850804\"<\/div><\/p>\n
\u5355\u4f4d\uff1a<\/p>\n
m \u8868\u793a\u5355\u4f4d\u4e3a\u7c73[\u9ed8\u8ba4\u503c]\u3002<\/p>\n
km \u8868\u793a\u5355\u4f4d\u4e3a\u5343\u7c73\u3002<\/p>\n
mi \u8868\u793a\u5355\u4f4d\u4e3a\u82f1\u91cc\u3002<\/p>\n
ft \u8868\u793a\u5355\u4f4d\u4e3a\u82f1\u5c3a\u3002<\/p>\n
\u5982\u679c\u7528\u6237\u6ca1\u6709\u663e\u5f0f\u5730\u6307\u5b9a\u5355\u4f4d\u53c2\u6570\uff0c \u90a3\u4e48 GEODIST \u9ed8\u8ba4\u4f7f\u7528\u7c73\u4f5c\u4e3a\u5355\u4f4d<\/p>\n
4\u3001georadius<\/p>\n
\uff081\uff09\u683c\u5f0f<\/p>\n
georadius\\< longitude>\\radius m|km|ft|mi  \u4ee5\u7ed9\u5b9a\u7684\u7ecf\u7eac\u5ea6\u4e3a\u4e2d\u5fc3\uff0c\u627e\u51fa\u67d0\u4e00\u534a\u5f84\u5185\u7684\u5143\u7d20<\/p>\n
\"image-20220516104914463\"<\/div><\/p>\n
\u7ecf\u5ea6 \u7eac\u5ea6 \u8ddd\u79bb \u5355\u4f4d<\/p>\n
\uff082\uff09\u5b9e\u4f8b<\/p>\n
\"image-20220516104920660\"<\/div><\/p>\n
7.<\/strong>  RedisJedis<\/em>**<\/strong>\u6d4b\u8bd5**<\/h2>\n
7.1.<\/strong>  Jedis\u6240\u9700\u8981\u7684jar\u5305<\/h3>\n
\n    redis.clients<\/groupId>\n    jedis<\/artifactId>\n    3.2.0<\/version>\n<\/dependency><\/code><\/pre>\n
7.2.<\/strong>  \u8fde\u63a5Redis\u6ce8\u610f\u4e8b\u9879<\/h3>\n
\u7981\u7528Linux\u7684\u9632\u706b\u5899\uff1aLinux(CentOS7)\u91cc\u6267\u884c\u547d\u4ee4<\/p>\n
systemctl stop\/disable firewalld.service<\/code><\/pre>\n
redis.conf\u4e2d\u6ce8\u91ca\u6389bind 127.0.0.1 ,\u7136\u540e protected-mode no<\/p>\n
7.3.<\/strong>  Jedis\u5e38\u7528\u64cd\u4f5c<\/h3>\n
7.3.1.<\/strong>  \u521b\u5efa\u52a8\u6001\u7684\u5de5\u7a0b<\/strong><\/p>\n
7.3.2.<\/strong>  \u521b\u5efa\u6d4b\u8bd5\u7a0b\u5e8f<\/strong><\/p>\n
public static void main(String[] args) {\n    Jedis jedis = new Jedis(\"127.0.0.1\",6379);\n    String pong = jedis.ping();\n    System.out.println(\"redis\u8fde\u63a5\u6210\u529f:\" + pong);\n    jedis.close();\n}<\/code><\/pre>\n
7.4.<\/strong>  \u6d4b\u8bd5\u76f8\u5173\u6570\u636e\u7c7b\u578b<\/strong><\/h3>\n
7.4.1.<\/strong>  Jedis-API:  Key<\/strong><\/p>\n
jedis.set(\"k1\",\"v1\");\njedis.set(\"k2\",\"v2\");\njedis.set(\"k3\",\"v3\");\n\nSet keys = jedis.keys(\"*\");\nSystem.out.println(keys.size());\n\nfor (String key: keys) {\n    System.out.println(key);\n}\nSystem.out.println(jedis.exists(\"k1\"));\nSystem.out.println(jedis.ttl(\"k1\"));\nSystem.out.println(jedis.get(\"k1\"));<\/code><\/pre>\n
7.4.2.<\/strong>  Jedis-API:  String<\/strong><\/p>\n
\/\/7.4.2.    Jedis-API:    String\njedis.mset(\"str1\",\"v1\",\"str2\",\"v2\",\"str3\",\"v3\");\nSystem.out.println(jedis.mget(\"str1\",\"str2\",\"str3\"));\n<\/code><\/pre>\n
7.4.3.<\/strong>  Jedis-API:  List<\/strong><\/p>\n
\/\/7.4.3.    Jedis-API:    List\njedis.lpush(\"mylist\",\"list1\",\"list2\",\"list3\");\nList mylist = jedis.lrange(\"mylist\", 0, -1);\nfor (String element: mylist) {\n    System.out.println(element);\n}<\/code><\/pre>\n
7.4.4.<\/strong>  Jedis-API:  set<\/strong><\/p>\n
\/\/7.4.4.    Jedis-API:    set\njedis.sadd("orders","order01");\njedis.sadd("orders","order02");\njedis.sadd("orders","order03");\njedis.sadd("orders","order04");\nSet<String> orders = jedis.smembers("orders");\nfor (String order : orders){\n    System.out.println(order);\n}\n\/\/\u5220\u9664\u5143\u7d20\njedis.srem("orders","order02");<\/code><\/pre>\n
7.4.5.<\/strong>  Jedis-API:  hash<\/strong><\/p>\n
\/\/7.4.5.    Jedis-API:    hash\njedis.hset("hash1","userName","lisi");\nSystem.out.println(jedis.hget("hash1","userName"));\nMap<String,String> map = new HashMap<>();\nmap.put("telphone","13122299999");\nmap.put("adress","china");\nmap.put("email","123@qq.com");\njedis.hmset("hash2",map);\n\nList<String> hmget = jedis.hmget("hash2", "telphone","adress","email");\nfor (String element : hmget){\n    System.out.println(element);\n}<\/code><\/pre>\n
7.4.6.<\/strong>  Jedis-API:  zset<\/strong><\/p>\n
jedis.zadd("zset01",100d,"z3");\njedis.zadd("zset01",90d,"l4");\njedis.zadd("zset01",70d,"w5");\njedis.zadd("zset01",50d,"z6");\n\nSet<String> zset01 = jedis.zrange("zset01", 0, -1);\nfor (String e: zset01) {\n    System.out.println(e);\n}<\/code><\/pre>\n
8.<\/strong>  RedisJedis<\/em>**<\/strong>\u5b9e\u4f8b**<\/h2>\n
8.1.<\/strong>  \u5b8c\u6210\u4e00\u4e2a\u624b\u673a\u9a8c\u8bc1\u7801\u529f\u80fd<\/strong><\/h3>\n
\u8981\u6c42\uff1a<\/p>\n
1\u3001\u8f93\u5165\u624b\u673a\u53f7\uff0c\u70b9\u51fb\u53d1\u9001\u540e\u968f\u673a\u751f\u62106\u4f4d\u6570\u5b57\u7801\uff0c2\u5206\u949f\u6709\u6548<\/p>\n
2\u3001\u8f93\u5165\u9a8c\u8bc1\u7801\uff0c\u70b9\u51fb\u9a8c\u8bc1\uff0c\u8fd4\u56de\u6210\u529f\u6216\u5931\u8d25<\/p>\n
3\u3001\u6bcf\u4e2a\u624b\u673a\u53f7\u6bcf\u5929\u53ea\u80fd\u8f93\u51653\u6b21<\/p>\n
\"image-20220516151743717\"<\/div><\/p>\n
9.<\/strong>  Redis\u4e0eSpring Boot\u6574\u5408<\/h2>\n
Spring Boot\u6574\u5408Redis\u975e\u5e38\u7b80\u5355\uff0c\u53ea\u9700\u8981\u6309\u5982\u4e0b\u6b65\u9aa4\u6574\u5408\u5373\u53ef<\/p>\n
9.1.<\/strong>  \u6574\u5408\u6b65\u9aa4<\/strong><\/h3>\n
1\u3001 \u5728pom.xml\u6587\u4ef6\u4e2d\u5f15\u5165redis\u76f8\u5173\u4f9d\u8d56<\/p>\n
<dependency>\n    <groupId>org.springframework.boot<\/groupId>\n    <artifactId>spring-boot-starter<\/artifactId>\n<\/dependency>\n<dependency>\n    <groupId>org.springframework.boot<\/groupId>\n    <artifactId>spring-boot-starter-web<\/artifactId>\n<\/dependency>\n\n<!-- redis -->\n<dependency>\n    <groupId>org.springframework.boot<\/groupId>\n    <artifactId>spring-boot-starter-data-redis<\/artifactId>\n<\/dependency>\n\n<!-- spring2.X\u96c6\u6210redis\u6240\u9700common-pool2-->\n<dependency>\n    <groupId>org.apache.commons<\/groupId>\n    <artifactId>commons-pool2<\/artifactId>\n    <version>2.6.0<\/version>\n<\/dependency><\/code><\/pre>\n
2\u3001 application.properties\u914d\u7f6eredis\u914d\u7f6e<\/p>\n
#Redis\u670d\u52a1\u5668\u5730\u5740\nspring.redis.host=192.168.0.106\n#Redis\u670d\u52a1\u5668\u8fde\u63a5\u7aef\u53e3\nspring.redis.port=6379\n#Redis\u6570\u636e\u5e93\u7d22\u5f15\uff08\u9ed8\u8ba4\u4e3a0\uff09\nspring.redis.database= 0\n#\u8fde\u63a5\u8d85\u65f6\u65f6\u95f4\uff08\u6beb\u79d2\uff09\nspring.redis.timeout=1800000\n#\u8fde\u63a5\u6c60\u6700\u5927\u8fde\u63a5\u6570\uff08\u4f7f\u7528\u8d1f\u503c\u8868\u793a\u6ca1\u6709\u9650\u5236\uff09\nspring.redis.lettuce.pool.max-active=20\n#\u6700\u5927\u963b\u585e\u7b49\u5f85\u65f6\u95f4(\u8d1f\u6570\u8868\u793a\u6ca1\u9650\u5236)\nspring.redis.lettuce.pool.max-wait=-1\n#\u8fde\u63a5\u6c60\u4e2d\u7684\u6700\u5927\u7a7a\u95f2\u8fde\u63a5\nspring.redis.lettuce.pool.max-idle=5\n#\u8fde\u63a5\u6c60\u4e2d\u7684\u6700\u5c0f\u7a7a\u95f2\u8fde\u63a5\nspring.redis.lettuce.pool.min-idle=0<\/code><\/pre>\n
3\u3001 \u6dfb\u52a0redis\u914d\u7f6e\u7c7b<\/p>\n
@EnableCaching\n@Configuration\npublic class RedisConfig extends CachingConfigurerSupport {\n\n    @Bean\n    public RedisTemplate redisTemplate(RedisConnectionFactory factory) {\n        RedisTemplate template = new RedisTemplate<>();\n        RedisSerializer redisSerializer = new StringRedisSerializer();\n        Jackson2JsonRedisSerializer jackson2JsonRedisSerializer = new Jackson2JsonRedisSerializer(Object.class);\n        ObjectMapper om = new ObjectMapper();\n        om.setVisibility(PropertyAccessor.ALL, JsonAutoDetect.Visibility.ANY);\n        om.enableDefaultTyping(ObjectMapper.DefaultTyping.NON_FINAL);\n        jackson2JsonRedisSerializer.setObjectMapper(om);\n        template.setConnectionFactory(factory);\n        \/\/key\u5e8f\u5217\u5316\u65b9\u5f0f\n        template.setKeySerializer(redisSerializer);\n        \/\/value\u5e8f\u5217\u5316\n        template.setValueSerializer(jackson2JsonRedisSerializer);\n        \/\/value hashmap\u5e8f\u5217\u5316\n        template.setHashValueSerializer(jackson2JsonRedisSerializer);\n        return template;\n    }\n\n    @Bean\n    public CacheManager cacheManager(RedisConnectionFactory factory) {\n        RedisSerializer redisSerializer = new StringRedisSerializer();\n        Jackson2JsonRedisSerializer jackson2JsonRedisSerializer = new Jackson2JsonRedisSerializer(Object.class);\n        \/\/\u89e3\u51b3\u67e5\u8be2\u7f13\u5b58\u8f6c\u6362\u5f02\u5e38\u7684\u95ee\u9898\n        ObjectMapper om = new ObjectMapper();\n        om.setVisibility(PropertyAccessor.ALL, JsonAutoDetect.Visibility.ANY);\n        om.enableDefaultTyping(ObjectMapper.DefaultTyping.NON_FINAL);\n        jackson2JsonRedisSerializer.setObjectMapper(om);\n        \/\/ \u914d\u7f6e\u5e8f\u5217\u5316\uff08\u89e3\u51b3\u4e71\u7801\u7684\u95ee\u9898\uff09,\u8fc7\u671f\u65f6\u95f4600\u79d2\n        RedisCacheConfiguration config = RedisCacheConfiguration.defaultCacheConfig()\n            .entryTtl(Duration.ofSeconds(600))\n            .serializeKeysWith(RedisSerializationContext.SerializationPair.fromSerializer(redisSerializer))\n            .serializeValuesWith(RedisSerializationContext.SerializationPair.fromSerializer(jackson2JsonRedisSerializer))\n            .disableCachingNullValues();\n        RedisCacheManager cacheManager = RedisCacheManager.builder(factory)\n            .cacheDefaults(config)\n            .build();\n        return cacheManager;\n    }\n\n}<\/code><\/pre>\n
4\u3001\u6d4b\u8bd5\u4e00\u4e0b<\/p>\n
RedisTestController\u4e2d\u6dfb\u52a0\u6d4b\u8bd5\u65b9\u6cd5<\/p>\n
@RestController\n@RequestMapping(\"\/redisTest\")\npublic class RedisTestController {\n    @Autowired\n    private RedisTemplate redisTemplate;\n\n    @GetMapping\n    public String testRedis() {\n        \/\/\u8bbe\u7f6e\u503c\u5230redis\n        redisTemplate.opsForValue().set(\"name\",\"lucy\");\n        \/\/\u4eceredis\u83b7\u53d6\u503c\n        String name = (String)redisTemplate.opsForValue().get(\"name\");\n        return name;\n    }\n}<\/code><\/pre>\n
10.<\/strong>    Redis_\u4e8b\u52a1_\u9501\u673a\u5236\u79d2\u6740<\/h2>\n
10.1.<\/strong>   Redis\u7684\u4e8b\u52a1\u5b9a\u4e49<\/h3>\n
\"image-20220516152012352\"<\/div><\/p>\n
Redis\u4e8b\u52a1\u662f\u4e00\u4e2a\u5355\u72ec\u7684\u9694\u79bb\u64cd\u4f5c\uff1a\u4e8b\u52a1\u4e2d\u7684\u6240\u6709\u547d\u4ee4\u90fd\u4f1a\u5e8f\u5217\u5316\u3001\u6309\u987a\u5e8f\u5730\u6267\u884c\u3002\u4e8b\u52a1\u5728\u6267\u884c\u7684\u8fc7\u7a0b\u4e2d\uff0c\u4e0d\u4f1a\u88ab\u5176\u4ed6\u5ba2\u6237\u7aef\u53d1\u9001\u6765\u7684\u547d\u4ee4\u8bf7\u6c42\u6240\u6253\u65ad\u3002<\/p>\n
Redis\u4e8b\u52a1\u7684\u4e3b\u8981\u4f5c\u7528\u5c31\u662f\u4e32\u8054\u591a\u4e2a\u547d\u4ee4<\/strong>\u9632\u6b62\u522b\u7684\u547d\u4ee4\u63d2\u961f\u3002<\/p>\n
10.2.<\/strong>   Multi<\/strong>\u3001Exec<\/strong>\u3001discard<\/strong><\/h3>\n
\u4ece\u8f93\u5165Multi\u547d\u4ee4\u5f00\u59cb\uff0c\u8f93\u5165\u7684\u547d\u4ee4\u90fd\u4f1a\u4f9d\u6b21\u8fdb\u5165\u547d\u4ee4\u961f\u5217\u4e2d\uff0c\u4f46\u4e0d\u4f1a\u6267\u884c\uff0c\u76f4\u5230\u8f93\u5165Exec\u540e\uff0cRedis\u4f1a\u5c06\u4e4b\u524d\u7684\u547d\u4ee4\u961f\u5217\u4e2d\u7684\u547d\u4ee4\u4f9d\u6b21\u6267\u884c\u3002<\/p>\n
\u7ec4\u961f\u7684\u8fc7\u7a0b\u4e2d\u53ef\u4ee5\u901a\u8fc7discard\u6765\u653e\u5f03\u7ec4\u961f\u3002 <\/p>\n
\"image-20220516152201613\"<\/div><\/p>\n
\u6848\u4f8b\uff1a<\/strong><\/p>\n\n\n\n\n\n\n
\"image-20220516152354763\"<\/div>\u7ec4\u961f\u6210\u529f\uff0c\u63d0\u4ea4\u6210\u529f<\/th>\n<\/tr>\n<\/thead>\n
\"image-20220516152400113\"<\/div>\u7ec4\u961f\u9636\u6bb5\u62a5\u9519\uff0c\u63d0\u4ea4\u5931\u8d25<\/td>\n<\/tr>\n
\"image-20220516152405409\"<\/div>\u7ec4\u961f\u6210\u529f\uff0c\u63d0\u4ea4\u6709\u6210\u529f\u6709\u5931\u8d25\u60c5\u51b5<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n
10.3.<\/strong>   \u4e8b\u52a1\u7684\u9519\u8bef\u5904\u7406<\/strong><\/h3>\n
\u7ec4\u961f\u4e2d\u67d0\u4e2a\u547d\u4ee4\u51fa\u73b0\u4e86\u62a5\u544a\u9519\u8bef\uff0c\u6267\u884c\u65f6\u6574\u4e2a\u7684\u6240\u6709\u961f\u5217\u90fd\u4f1a\u88ab\u53d6\u6d88\u3002<\/p>\n
\"image-20220516152418382\"<\/div><\/p>\n
\u5982\u679c\u6267\u884c\u9636\u6bb5\u67d0\u4e2a\u547d\u4ee4\u62a5\u51fa\u4e86\u9519\u8bef\uff0c\u5219\u53ea\u6709\u62a5\u9519\u7684\u547d\u4ee4\u4e0d\u4f1a\u88ab\u6267\u884c\uff0c\u800c\u5176\u4ed6\u7684\u547d\u4ee4\u90fd\u4f1a\u6267\u884c\uff0c\u4e0d\u4f1a\u56de\u6eda\u3002<\/p>\n
\"image-20220516152422805\"<\/div><\/p>\n
10.4.<\/strong>   \u4e3a\u4ec0\u4e48\u8981\u505a\u6210\u4e8b\u52a1<\/strong><\/h3>\n
\u60f3\u60f3\u4e00\u4e2a\u573a\u666f\uff1a\u6709\u5f88\u591a\u4eba\u6709\u4f60\u7684\u8d26\u6237,\u540c\u65f6\u53bb\u53c2\u52a0\u53cc\u5341\u4e00\u62a2\u8d2d<\/p>\n
10.5.<\/strong>   \u4e8b\u52a1\u51b2\u7a81\u7684\u95ee\u9898<\/strong><\/h3>\n
10.5.1.<\/strong>      \u4f8b\u5b50<\/strong><\/p>\n
\u4e00\u4e2a\u8bf7\u6c42\u60f3\u7ed9\u91d1\u989d\u51cf8000<\/p>\n
\u4e00\u4e2a\u8bf7\u6c42\u60f3\u7ed9\u91d1\u989d\u51cf5000<\/p>\n
\u4e00\u4e2a\u8bf7\u6c42\u60f3\u7ed9\u91d1\u989d\u51cf1000<\/p>\n
\"image-20220516152441172\"<\/div><\/p>\n
10.5.2.<\/strong>      \u60b2\u89c2\u9501<\/strong><\/p>\n
\"image-20220516152446095\"<\/div><\/p>\n
\u60b2\u89c2\u9501(Pessimistic Lock)<\/strong>, \u987e\u540d\u601d\u4e49\uff0c\u5c31\u662f\u5f88\u60b2\u89c2\uff0c\u6bcf\u6b21\u53bb\u62ff\u6570\u636e\u7684\u65f6\u5019\u90fd\u8ba4\u4e3a\u522b\u4eba\u4f1a\u4fee\u6539\uff0c\u6240\u4ee5\u6bcf\u6b21\u5728\u62ff\u6570\u636e\u7684\u65f6\u5019\u90fd\u4f1a\u4e0a\u9501\uff0c\u8fd9\u6837\u522b\u4eba\u60f3\u62ff\u8fd9\u4e2a\u6570\u636e\u5c31\u4f1ablock\u76f4\u5230\u5b83\u62ff\u5230\u9501\u3002\u4f20\u7edf\u7684\u5173\u7cfb\u578b\u6570\u636e\u5e93\u91cc\u8fb9\u5c31\u7528\u5230\u4e86\u5f88\u591a\u8fd9\u79cd\u9501\u673a\u5236<\/strong>\uff0c\u6bd4\u5982\u884c\u9501<\/strong>\uff0c\u8868\u9501<\/strong>\u7b49\uff0c\u8bfb\u9501<\/strong>\uff0c\u5199\u9501<\/strong>\u7b49\uff0c\u90fd\u662f\u5728\u505a\u64cd\u4f5c\u4e4b\u524d\u5148\u4e0a\u9501\u3002<\/p>\n
10.5.3.<\/strong>      \u4e50\u89c2\u9501<\/strong><\/p>\n
\"image-20220516152452132\"<\/div><\/p>\n
\u4e50\u89c2\u9501(Optimistic Lock),<\/strong> \u987e\u540d\u601d\u4e49\uff0c\u5c31\u662f\u5f88\u4e50\u89c2\uff0c\u6bcf\u6b21\u53bb\u62ff\u6570\u636e\u7684\u65f6\u5019\u90fd\u8ba4\u4e3a\u522b\u4eba\u4e0d\u4f1a\u4fee\u6539\uff0c\u6240\u4ee5\u4e0d\u4f1a\u4e0a\u9501\uff0c\u4f46\u662f\u5728\u66f4\u65b0\u7684\u65f6\u5019\u4f1a\u5224\u65ad\u4e00\u4e0b\u5728\u6b64\u671f\u95f4\u522b\u4eba\u6709\u6ca1\u6709\u53bb\u66f4\u65b0\u8fd9\u4e2a\u6570\u636e\uff0c\u53ef\u4ee5\u4f7f\u7528\u7248\u672c\u53f7\u7b49\u673a\u5236\u3002\u4e50\u89c2\u9501\u9002\u7528\u4e8e\u591a\u8bfb\u7684\u5e94\u7528\u7c7b\u578b\uff0c\u8fd9\u6837\u53ef\u4ee5\u63d0\u9ad8\u541e\u5410\u91cf<\/strong>\u3002Redis\u5c31\u662f\u5229\u7528\u8fd9\u79cdcheck-and-set\u673a\u5236\u5b9e\u73b0\u4e8b\u52a1\u7684\u3002<\/p>\n
10.5.4.<\/strong>      WATCH<\/strong> key<\/strong> [key ...]<\/strong><\/p>\n
\u5728\u6267\u884cmulti\u4e4b\u524d\uff0c\u5148\u6267\u884cwatch key1 [key2],\u53ef\u4ee5\u76d1\u89c6\u4e00\u4e2a(\u6216\u591a\u4e2a) key \uff0c\u5982\u679c\u5728\u4e8b\u52a1\u6267\u884c\u4e4b\u524d\u8fd9\u4e2a(<\/strong>\u6216\u8fd9\u4e9b) key \u88ab\u5176\u4ed6\u547d\u4ee4\u6240\u6539\u52a8\uff0c\u90a3\u4e48\u4e8b\u52a1\u5c06\u88ab\u6253\u65ad\u3002<\/strong><\/p>\n
\u5bf9\u4e00\u4e2akey\u5f00\u542f\u4e24\u4e2a\u4e8b\u52a1\uff0c\u6210\u529f\u63d0\u4ea4\u4e86\u4e00\u4e2a\uff0c\u53e6\u4e00\u4e2a\u4e0d\u4f1a\u6210\u529f<\/p>\n
\"image-20220516155354654\"<\/div><\/p>\n
10.5.5.<\/strong>      unwatch<\/strong><\/p>\n
\u53d6\u6d88 WATCH \u547d\u4ee4\u5bf9\u6240\u6709 key \u7684\u76d1\u89c6\u3002<\/p>\n
\u5982\u679c\u5728\u6267\u884c WATCH \u547d\u4ee4\u4e4b\u540e\uff0cEXEC \u547d\u4ee4\u6216DISCARD \u547d\u4ee4\u5148\u88ab\u6267\u884c\u4e86\u7684\u8bdd\uff0c\u90a3\u4e48\u5c31\u4e0d\u9700\u8981\u518d\u6267\u884cUNWATCH \u4e86\u3002<\/p>\n
http:\/\/doc.redisfans.com\/transaction\/exec.html<\/a><\/p>\n
10.6.<\/strong>   Redis<\/strong>\u4e8b\u52a1\u4e09\u7279\u6027<\/h3>\n
\u00d8 \u5355\u72ec\u7684\u9694\u79bb\u64cd\u4f5c <\/p>\n
n \u4e8b\u52a1\u4e2d\u7684\u6240\u6709\u547d\u4ee4\u90fd\u4f1a\u5e8f\u5217\u5316\u3001\u6309\u987a\u5e8f\u5730\u6267\u884c\u3002\u4e8b\u52a1\u5728\u6267\u884c\u7684\u8fc7\u7a0b\u4e2d\uff0c\u4e0d\u4f1a\u88ab\u5176\u4ed6\u5ba2\u6237\u7aef\u53d1\u9001\u6765\u7684\u547d\u4ee4\u8bf7\u6c42\u6240\u6253\u65ad\u3002 <\/p>\n
\u00d8 \u6ca1\u6709\u9694\u79bb\u7ea7\u522b\u7684\u6982\u5ff5 <\/p>\n
n \u961f\u5217\u4e2d\u7684\u547d\u4ee4\u6ca1\u6709\u63d0\u4ea4\u4e4b\u524d\u90fd\u4e0d\u4f1a\u5b9e\u9645\u88ab\u6267\u884c\uff0c\u56e0\u4e3a\u4e8b\u52a1\u63d0\u4ea4\u524d\u4efb\u4f55\u6307\u4ee4\u90fd\u4e0d\u4f1a\u88ab\u5b9e\u9645\u6267\u884c<\/p>\n
\u00d8 \u4e0d\u4fdd\u8bc1\u539f\u5b50\u6027 <\/p>\n
n \u4e8b\u52a1\u4e2d\u5982\u679c\u6709\u4e00\u6761\u547d\u4ee4\u6267\u884c\u5931\u8d25\uff0c\u5176\u540e\u7684\u547d\u4ee4\u4ecd\u7136\u4f1a\u88ab\u6267\u884c\uff0c\u6ca1\u6709\u56de\u6eda <\/p>\n
11.<\/strong>    Redis_\u4e8b\u52a1_\u79d2\u6740\u6848\u4f8b<\/strong><\/h2>\n
11.1.<\/strong>   \u89e3\u51b3\u8ba1\u6570\u5668\u548c\u4eba\u5458\u8bb0\u5f55\u7684\u4e8b\u52a1\u64cd\u4f5c<\/strong><\/h3>\n
\"image-20220516155547271\"<\/div><\/p>\n
11.2.<\/strong>   Redis\u4e8b\u52a1<\/strong>--\u79d2\u6740\u5e76\u53d1\u6a21\u62df<\/h3>\n
\u4f7f\u7528\u5de5\u5177ab\u6a21\u62df\u6d4b\u8bd5<\/p>\n
CentOS6 \u9ed8\u8ba4\u5b89\u88c5<\/p>\n
CentOS7\u9700\u8981\u624b\u52a8\u5b89\u88c5<\/p>\n
11.2.1.<\/strong>      \u8054\u7f51\uff1ayum install httpd-tools<\/strong><\/p>\n
11.2.2.<\/strong>      \u65e0\u7f51\u7edc<\/strong><\/p>\n
\uff081\uff09 \u8fdb\u5165cd \/run\/media\/root\/CentOS 7 x86_64\/Packages\uff08\u8def\u5f84\u8ddfcentos6\u4e0d\u540c\uff09<\/p>\n
\uff082\uff09 \u987a\u5e8f\u5b89\u88c5<\/p>\n
apr-1.4.8-3.el7.x86_64.rpm<\/p>\n
apr-util-1.5.2-6.el7.x86_64.rpm<\/p>\n
httpd-tools-2.4.6-67.el7.centos.x86_64.rpm <\/p>\n
11.2.3.<\/strong>      \u6d4b\u8bd5\u53ca\u7ed3\u679c<\/strong><\/p>\n
11.2.3.1.<\/strong>    \u901a\u8fc7<\/strong>ab\u6d4b\u8bd5<\/strong><\/p>\n
vim postfile \u6a21\u62df\u8868\u5355\u63d0\u4ea4\u53c2\u6570,\u4ee5&\u7b26\u53f7\u7ed3\u5c3e;\u5b58\u653e\u5f53\u524d\u76ee\u5f55\u3002<\/p>\n
\u5185\u5bb9\uff1aprodid=0101&<\/p>\n
ab -n 2000 -c 200 -k -p .\/postfile -T application\/x-www-form-urlencoded http:\/\/192.168.0.109:8080\/seckill<\/code><\/pre>\n
11.2.3.2.<\/strong>    \u8d85\u5356<\/strong><\/p>\n\n\n\n\n\n
<\/th>\n<\/th>\n<\/tr>\n<\/thead>\n
\"image-20220516211544149\"<\/div><\/td>\n
\"image-20220516211550003\"<\/div><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n
11.3.<\/strong>   \u8d85\u5356\u95ee\u9898<\/strong><\/h3>\n
\"image-20220516211558457\"<\/div><\/p>\n
11.4.<\/strong>   \u5229\u7528\u4e50\u89c2\u9501\u6dd8\u6c70\u7528\u6237\uff0c\u89e3\u51b3\u8d85\u5356\u95ee\u9898\u3002<\/strong><\/h3>\n
\"image-20220516211607359\"<\/div><\/p>\n
\/\/1 \u975e\u7a7a\u5224\u65ad\nif(uid == null || prodid == null){\n    return false;\n}\n\/\/2 \u62fc\u63a5key\nString kckey = "sk:"+prodid+":qt";\nString userkey = "sk:"+prodid+":user";\n\n\/\/\u589e\u52a0\u4e50\u89c2\u9501 \u76d1\u63a7\u5e93\u5b58\nredisTemplate.watch(kckey);\n\n\/\/3 \u83b7\u53d6\u5e93\u5b58 \u5982\u679c\u4e3a\u7a7a \u79d2\u6740\u8fd8\u6ca1\u5f00\u59cb\nInteger kc = (Integer) redisTemplate.opsForValue().get(kckey);\nif (kc == null){\n    System.out.println("\u79d2\u6740\u8fd8\u6ca1\u6709\u5f00\u59cb\uff0c\u8bf7\u7b49\u5f85");\n    return false;\n}\n\n\/\/4 \u5224\u65ad\u7528\u6237\u662f\u5426\u91cd\u590d\u79d2\u6740\nif(redisTemplate.opsForSet().isMember(userkey,uid)){\n    System.out.println("\u5df2\u7ecf\u79d2\u6740\u6210\u529f\u4e86 \u4e0d\u80fd\u91cd\u590d\u79d2\u6740");\n    return false;\n}\n\n\/\/5 \u5224\u65ad\u5982\u679c\u5546\u54c1\u6570\u91cf \u5e93\u5b58\u91cf\u5c0f\u4e8e1 \u79d2\u6740\u7ed3\u675f\nif(kc <= 0){\n    System.out.println("\u79d2\u6740\u5df2\u7ecf\u7ed3\u675f\u4e86 ");\n    return false;\n}\n\n\/\/6 \u79d2\u6740\u7ed3\u675f\n\/\/\u4f7f\u7528\u4e8b\u52a1\nredisTemplate.setEnableTransactionSupport(true);\nredisTemplate.multi();\n\/\/\u7ec4\u961f\u64cd\u4f5c\nredisTemplate.opsForValue().decrement(kckey);\nredisTemplate.opsForSet().add(userkey,uid);\n\/\/\u6267\u884c\nList<Object> result = redisTemplate.exec();\nif(result == null || result.size() == 0){\n    System.out.println("\u79d2\u6740\u5931\u8d25\u4e86\u3002\u3002\u3002");\n    return false;\n}\n\/\/        \/\/ 6.1 \u5e93\u5b58 -1\n\/\/        redisTemplate.opsForValue().decrement(kckey);\n\/\/        \/\/ 6.2 \u628a\u79d2\u6740\u6210\u529f\u7528\u6237\u6dfb\u52a0\u5230\u6e05\u5355\n\/\/        redisTemplate.opsForSet().add(userkey,uid);\n        System.out.println("\u79d2\u6740\u6210\u529f\u3002\u3002\u3002\u3002");<\/code><\/pre>\n
\"image-20220518100015182\"<\/div><\/p>\n
\"image-20220518100021565\"<\/div><\/p>\n
11.5.<\/strong>   \u7ee7\u7eed\u589e\u52a0\u5e76\u53d1\u6d4b\u8bd5<\/strong><\/h3>\n
11.5.1.<\/strong>      \u8fde\u63a5\u6709\u9650\u5236<\/strong><\/p>\n
ab -n 2000 -c 200 -k -p postfile -T 'application\/x-www-form-urlencoded' http:\/\/192.168.140.1:8080\/seckill\/doseckill<\/code><\/pre>\n
\"image-20220518100103152\"<\/div><\/p>\n
\u589e\u52a0-r\u53c2\u6570\uff0c-r  Don't exit on socket receive errors.<\/p>\n
ab -n 2000 -c 100 -r -p postfile -T 'application\/x-www-form-urlencoded' http:\/\/192.168.140.1:8080\/seckill\/doseckill<\/code><\/pre>\n
11.5.2.<\/strong>      \u5df2\u7ecf\u79d2\u5149\uff0c\u53ef\u662f\u8fd8\u6709\u5e93\u5b58<\/strong><\/p>\n
ab -n 2000 -c 100 -p postfile -T 'application\/x-www-form-urlencoded' http:\/\/192.168.137.1:8080\/seckill\/doseckill<\/code><\/pre>\n
\u5df2\u7ecf\u79d2\u5149\uff0c\u53ef\u662f\u8fd8\u6709\u5e93\u5b58\u3002\u539f\u56e0\uff0c\u5c31\u662f\u4e50\u89c2\u9501\u5bfc\u81f4\u5f88\u591a\u8bf7\u6c42\u90fd\u5931\u8d25\u3002\u5148\u70b9\u7684\u6ca1\u79d2\u5230\uff0c\u540e\u70b9\u7684\u53ef\u80fd\u79d2\u5230\u4e86\u3002<\/p>\n
\"image-20220518100145218\"<\/div><\/p>\n
11.5.3.<\/strong>      \u8fde\u63a5\u8d85\u65f6\uff0c\u901a\u8fc7\u8fde\u63a5\u6c60\u89e3\u51b3<\/strong><\/p>\n
\"image-20220518100153300\"<\/div><\/p>\n
11.5.4.<\/strong>      \u8fde\u63a5\u6c60<\/strong><\/p>\n
\u8282\u7701\u6bcf\u6b21\u8fde\u63a5redis\u670d\u52a1\u5e26\u6765\u7684\u6d88\u8017\uff0c\u628a\u8fde\u63a5\u597d\u7684\u5b9e\u4f8b\u53cd\u590d\u5229\u7528\u3002<\/p>\n
\u901a\u8fc7\u53c2\u6570\u7ba1\u7406\u8fde\u63a5\u7684\u884c\u4e3a<\/p>\n
\u4ee3\u7801\u89c1\u9879\u76ee\u4e2d<\/p>\n