{"id":659,"date":"2022-12-29T10:00:27","date_gmt":"2022-12-29T02:00:27","guid":{"rendered":"https:\/\/blog.lijiajia.top\/?p=659"},"modified":"2026-06-19T20:51:55","modified_gmt":"2026-06-19T12:51:55","slug":"mybatis%e4%b8%ad%e4%b8%8e%e7%9a%84%e5%8c%ba%e5%88%ab","status":"publish","type":"post","link":"https:\/\/blog.ttwow.top\/?p=659","title":{"rendered":"Mybatis\u4e2d#{}\u4e0e${}\u7684\u533a\u522b"},"content":{"rendered":"<p><a href=\"https:\/\/blog.csdn.net\/qq_44543508\/article\/details\/97106696\"><a href=\"https:\/\/blog.csdn.net\/qq_44543508\/article\/details\/97106696\">https:\/\/blog.csdn.net\/qq_44543508\/article\/details\/97106696<\/a><\/a><\/p>\n<\/p>\n<h2>\u6700\u5927\u7684\u533a\u522b\u5219\u662f#{}\u65b9\u5f0f\u80fd\u591f\u5f88\u5927\u7a0b\u5ea6\u9632\u6b62sql\u6ce8\u5165(\u5b89\u5168)\uff0c${}\u65b9\u5f0f\u65e0\u6cd5\u9632\u6b62Sql\u6ce8\u5165<\/h2>\n<h1>\u5173\u4e8e # { }<\/h1>\n<p>1\u3001#{}\u8868\u793a\u4e00\u4e2a\u5360\u4f4d\u7b26\u53f7 \u76f8\u5f53\u4e8e jdbc\u4e2d\u7684 ?<br \/>\n\u7b26\u53f7#{}\u5b9e\u73b0\u7684\u662f\u5411prepareStatement\u4e2d\u7684\u9884\u5904\u7406\u8bed\u53e5\u4e2d\u8bbe\u7f6e\u53c2\u6570\u503c\uff0csql\u8bed\u53e5\u4e2d#{}\u8868\u793a\u4e00\u4e2a\u5360\u4f4d\u7b26\u5373?<\/p>\n<p>2\u3001#{}\u5c06\u4f20\u5165\u7684\u6570\u636e\u90fd\u5f53\u6210\u4e00\u4e2a\u5b57\u7b26\u4e32\uff0c\u4f1a\u5bf9\u81ea\u52a8\u4f20\u5165\u7684\u6570\u636e\u52a0\u4e00\u4e2a\u53cc\u5f15\u53f7\u3002\u5982\uff1aselect * from user where id= #{user_id}\uff0c\u5982\u679c\u4f20\u5165\u7684\u503c\u662f11,\u90a3\u4e48\u89e3\u6790\u6210sql\u65f6\u7684\u503c\u4e3awhere id=&quot;11&quot; \uff0c<\/p>\n<p>3\u3001\u5982\u679csql\u8bed\u53e5\u4e2d\u53ea\u6709\u4e00\u4e2a\u53c2\u6570,\u6b64\u65f6\u53c2\u6570\u540d\u79f0\u53ef\u4ee5\u968f\u610f\u5b9a\u4e49<br \/>\n\u5982\u679csql\u8bed\u53e5\u6709\u591a\u4e2a\u53c2\u6570,\u6b64\u65f6\u53c2\u6570\u540d\u79f0\u5e94\u8be5\u662f\u4e0e\u5f53\u524d\u8868\u5173\u8054[\u5b9e\u4f53\u7c7b\u7684\u5c5e\u6027\u540d]\u6216\u5219[Map\u96c6\u5408\u5173\u952e\u5b57]\uff0c\u4e0d\u80fd\u968f\u4fbf\u5199\uff0c\u5fc5\u987b\u5bf9\u5e94\uff01<\/p>\n<h1>\u5173\u4e8e$ { }<\/h1>\n<p>1\u3001$ {}\u5c06\u4f20\u5165\u7684\u6570\u636e\u76f4\u63a5\u663e\u793a\u751f\u6210\u5728sql\u4e2d\u3002\u5982\uff1aselect * from user where id= $ {user_id}\uff0c\u5982\u679c\u4f20\u5165\u7684\u503c\u662f11,\u90a3\u4e48\u89e3\u6790\u6210sql\u65f6\u7684\u503c\u4e3awhere id=11<\/p>\n<p>2\u3001$ {value}\u4e2dvalue\u503c\u6709\u9650\u5236\u53ea\u80fd\u5199\u5bf9\u5e94\u7684value\u503c\u4e0d\u80fd\u968f\u4fbf\u5199\uff0c\u56e0\u4e3a${}\u4e0d\u4f1a\u81ea\u52a8\u8fdb\u884cjdbc\u7c7b\u578b\u8f6c\u6362<\/p>\n<p>3\u3001\u7b80\u5355\u6765\u8bf4,\u5728JDBC\u4e0d\u652f\u6301\u4f7f\u7528\u5360\u4f4d\u7b26\u7684\u5730\u65b9,\u90fd\u53ef\u4ee5\u4f7f\u7528${}<\/p>\n<h1>Mybatis\u4e2d#{}\u4e0e${}\u7684\u533a\u522b<\/h1>\n<p>\u7b80\u5355\u6765\u8bf4\u533a\u522b\u5c31\u662f<\/p>\n<p>-#{}\u65b9\u5f0f\u80fd\u591f\u5f88\u5927\u7a0b\u5ea6\u9632\u6b62sql\u6ce8\u5165(\u5b89\u5168)\uff0c${}\u65b9\u5f0f\u65e0\u6cd5\u9632\u6b62Sql\u6ce8\u5165<\/p>\n<p>\u5728JDBC\u80fd\u4f7f\u7528\u5360\u4f4d\u7b26\u7684\u5730\u65b9,\u6700\u597d\u4f18\u5148\u4f7f\u7528#{}<\/p>\n<p>\u5728JDBC\u4e0d\u652f\u6301\u4f7f\u7528\u5360\u4f4d\u7b26\u7684\u5730\u65b9,\u5c31\u53ea\u80fd\u4f7f\u7528${}\uff0c\u5178\u578b\u60c5\u51b5\u5c31\u662f \u52a8\u6001\u53c2\u6570<\/p>\n","protected":false},"excerpt":{"rendered":"<p>https:\/\/blog.csdn.net\/qq_44543508\/article\/details\/97106 [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[136],"tags":[56],"class_list":["post-659","post","type-post","status-publish","format-standard","hentry","category-notes-misc","tag-mybatis"],"_links":{"self":[{"href":"https:\/\/blog.ttwow.top\/index.php?rest_route=\/wp\/v2\/posts\/659","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/blog.ttwow.top\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/blog.ttwow.top\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/blog.ttwow.top\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/blog.ttwow.top\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=659"}],"version-history":[{"count":1,"href":"https:\/\/blog.ttwow.top\/index.php?rest_route=\/wp\/v2\/posts\/659\/revisions"}],"predecessor-version":[{"id":2041,"href":"https:\/\/blog.ttwow.top\/index.php?rest_route=\/wp\/v2\/posts\/659\/revisions\/2041"}],"wp:attachment":[{"href":"https:\/\/blog.ttwow.top\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=659"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/blog.ttwow.top\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=659"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/blog.ttwow.top\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=659"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}