{"id":292,"date":"2022-04-07T10:11:34","date_gmt":"2022-04-07T02:11:34","guid":{"rendered":"https:\/\/blog.lijiajia.top\/?p=292"},"modified":"2026-06-19T21:39:06","modified_gmt":"2026-06-19T13:39:06","slug":"spring%e6%a1%86%e6%9e%b6%e5%ad%a6%e4%b9%a0%ef%bc%9aioc%e6%93%8d%e4%bd%9cbean%e7%ae%a1%e7%90%86-%e5%8d%81","status":"publish","type":"post","link":"https:\/\/blog.ttwow.top\/?p=292","title":{"rendered":"Spring\u6846\u67b6\u5b66\u4e60\uff1aIOC\u64cd\u4f5cBean\u7ba1\u7406-\u57fa\u4e8e\u6ce8\u89e3\u65b9\u5f0f(\u5bf9\u8c61\u521b\u5efa)(\u5341)"},"content":{"rendered":"

1\u3001\u4ec0\u4e48\u662f\u6ce8\u89e3<\/h2>\n

(1)\u6ce8\u89e3\u662f\u4ee3\u7801\u7279\u6b8a\u6807\u8bb0\uff0c\u683c\u5f0f\uff1a@\u6ce8\u89e3\u540d\u79f0\uff08\u5c5e\u6027\u540d\u79f0=\u5c5e\u6027\u503c\uff0c\u5c5e\u6027\u540d\u79f0=\u5c5e\u6027\u503c.\u2026\uff09
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\n(3)\u4f7f\u7528\u6ce8\u89e3\u76ee\u7684\uff1a\u7b80\u5316l\u914d\u7f6e<\/p>\n

2\u3001Spring\u9488\u5bf9Bean\u7ba1\u7406\u4e2d\u521b\u5efa\u5bf9\u8c61\u63d0\u4f9b\u6ce8\u89e3<\/h2>\n

(1)@Component
\n(2)@Service
\n(3)@Controller
\n(4)@Repository
\n*\u4e0a\u9762\u56db\u4e2a\u6ce8\u89e3\u529f\u80fd\u662f\u4e00\u6837\u7684\uff0c\u90fd\u53ef\u4ee5\u7528\u6765\u521b\u5efabean\u5b9e\u4f8b
\n\u5176\u5b9e\u53ef\u4ee5\u6df7\u7528\uff0c\u4f46\u662f\u4e3a\u4e86\u533a\u5206\u4e0d\u540c\u5c42\uff0c@Controller\u7528\u5728web\u5c42
\n@Service\u7528\u5728\u4e1a\u52a1\u5c42 @Repository\u7528\u5728dao\u5c42<\/p>\n

3\u3001\u57fa\u4e8e\u6ce8\u89e3\u65b9\u5f0f\u5b9e\u73b0\u5bf9\u8c61\u521b\u5efa<\/h2>\n

\u7b2c\u4e00\u6b65\uff1a\u5f15\u5165\u4f9d\u8d56
\nspring-aop-5.2.6.RELEASE.jar
\n\u7b2c\u4e8c\u6b65\uff1a\u5f00\u542f\u7ec4\u4ef6\u626b\u63cf\u548c\u5f15\u5165\u547d\u540d\u7a7a\u95f4context<\/p>\n

<beans xmlns="http:\/\/www.springframework.org\/schema\/beans"\n       xmlns:xsi="http:\/\/www.w3.org\/2001\/XMLSchema-instance"\n       xmlns:context="http:\/\/www.springframework.org\/schema\/context"\n       xsi:schemaLocation="http:\/\/www.springframework.org\/schema\/beans http:\/\/www.springframework.org\/schema\/beans\/spring-beans.xsd\n                          http:\/\/www.springframework.org\/schema\/context http:\/\/www.springframework.org\/schema\/context\/spring-context.xsd">\n<\/code><\/pre>\n
<!--\u5f00\u542f\u7ec4\u4ef6\u626b\u63cf\n        1.\u5982\u679c\u626b\u63cf\u591a\u4e2a\u5305\uff0c\u591a\u4e2a\u5305\u4f7f\u7528 \u9017\u53f7 \u9694\u5f00\n        2.\u626b\u63cf\u4e0a\u5c42\u76ee\u5f55-->\n    <context:component-scan base-package="com.spring5.service,com.spring5.dao"><\/context:component-scan>\n<!--    <context:component-scan base-package="com.spring5"><\/context:component-scan>--><\/code><\/pre>\n
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\/\/\u6ce8\u89e3\u91cc\u9762value\u5c5e\u6027\u503c\u53ef\u4ee5\u7701\u7565\u4e0d\u5199\uff0c\u9ed8\u8ba4\u503c\u65f6\u7c7b\u540d\u79f0 \u9996\u5b57\u6bcd\u5c0f\u5b66\n\/\/@Component\n\/\/@Component("userService")\n\/\/@Component(value = "userService")    \/\/\u76f8\u5f53\u4e8e <bean id ="" class = ""\/>\n\/\/@Controller\n@Service\npublic class UserService {\n\n    public void add(){\n        System.out.println("add .....");\n    }\n}<\/code><\/pre>\n
junit\u6d4b\u8bd5<\/p>\n
@Test\n    public void test5(){\n\n        ApplicationContext context = new ClassPathXmlApplicationContext("bean1.xml");\n\n        UserService userService = context.getBean("userService", UserService.class);\n        System.out.println(userService);\n        userService.add();\n    }<\/code><\/pre>\n
\u6d4b\u8bd5\u7ed3\u679c\uff1a
\nuserService\u5bf9\u8c61\u521b\u5efa\u6210\u529f<\/p>\n
com.spring5.service.UserService@69930714\nadd .....<\/code><\/pre>\n
4.\u5f00\u542f\u7ec4\u4ef6\u626b\u63cf\u7ec6\u8282<\/h2>\n
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