{"id":727,"date":"2023-05-18T01:00:09","date_gmt":"2023-05-19T12:11:52","guid":{"rendered":"https:\/\/www.silicloud.com\/zh\/blog\/index.php\/2023\/11\/30\/spring-ioc%ef%bc%8cspring-bean%e7%a4%ba%e4%be%8b%e6%95%99%e7%a8%8b%e3%80%82\/"},"modified":"2025-08-03T05:15:14","modified_gmt":"2025-08-02T21:15:14","slug":"spring-ioc%ef%bc%8cspring-bean%e7%a4%ba%e4%be%8b%e6%95%99%e7%a8%8b%e3%80%82","status":"publish","type":"post","link":"https:\/\/www.silicloud.com\/zh\/blog\/spring-ioc%ef%bc%8cspring-bean%e7%a4%ba%e4%be%8b%e6%95%99%e7%a8%8b%e3%80%82\/","title":{"rendered":"\u6df1\u5165\u7406\u89e3Spring IoC\u4e0eBean\uff1a\u5b8c\u6574\u793a\u4f8b\u6559\u7a0b\u4e0e\u5b9e\u6218\u6307\u5357"},"content":{"rendered":"

\u6b22\u8fce\u6765\u5230 Spring IoC \u793a\u4f8b\u6559\u7a0b\u3002Spring Framework \u662f\u57fa\u4e8e\u63a7\u5236\u53cd\u8f6c\u539f\u5219\u6784\u5efa\u7684\u3002\u4f9d\u8d56\u6ce8\u5165\u662f\u5728\u5e94\u7528\u4e2d\u5b9e\u73b0\u63a7\u5236\u53cd\u8f6c\u7684\u6280\u672f\u3002<\/p>\n

Spring IoC\uff08\u63a7\u5236\u53cd\u8f6c\uff09<\/h2>\n

\u4eca\u5929\u6211\u4eec\u5c06\u7814\u7a76Spring IoC\u5bb9\u5668\u3002\u6211\u4eec\u8fd8\u5c06\u5b66\u4e60Spring Bean\u3002\u4ee5\u4e0b\u662f\u5feb\u901f\u5bfc\u822a\u5230Spring IoC\u6559\u7a0b\u4e0d\u540c\u90e8\u5206\u7684\u76ee\u5f55\u3002<\/p>\n

    \n
  1. Spring IoC\uff08\u63a7\u5236\u53cd\u8f6c\uff09<\/li>\n
  2. Spring Bean\uff08Spring\u5bf9\u8c61\uff09<\/li>\n
  3. Spring Bean\u4f5c\u7528\u57df\uff08Spring\u5bf9\u8c61\u8303\u56f4\uff09<\/li>\n
  4. Spring Bean\u914d\u7f6e\uff08Spring\u5bf9\u8c61\u914d\u7f6e\uff09<\/li>\n
  5. Spring IoC\u548cSpring Bean\u793a\u4f8b\n
      \n
    1. \u57fa\u4e8eXML\u7684Spring Bean\u914d\u7f6e<\/li>\n
    2. \u57fa\u4e8e\u6ce8\u89e3\u7684Spring Bean\u914d\u7f6e<\/li>\n
    3. \u57fa\u4e8eJava\u7684Spring Bean\u914d\u7f6e<\/li>\n<\/ol>\n<\/li>\n<\/ol>\n

      Spring IoC\u5bb9\u5668<\/h3>\n

      Spring IoC\u662f\u5b9e\u73b0\u5bf9\u8c61\u4e4b\u95f4\u677e\u6563\u8026\u5408\u7684\u673a\u5236\u3002\u4e3a\u4e86\u5728\u8fd0\u884c\u65f6\u5b9e\u73b0\u677e\u6563\u8026\u5408\u548c\u52a8\u6001\u7ed1\u5b9a\u5bf9\u8c61\u7684\u4f9d\u8d56\u5173\u7cfb\uff0c\u5bf9\u8c61\u7684\u4f9d\u8d56\u5173\u7cfb\u7531\u5176\u4ed6\u88c5\u914d\u5668\u5bf9\u8c61\u6ce8\u5165\u3002Spring IoC\u5bb9\u5668\u662f\u5c06\u4f9d\u8d56\u6ce8\u5165\u5230\u5bf9\u8c61\u4e2d\u5e76\u4f7f\u5176\u51c6\u5907\u597d\u4f9b\u6211\u4eec\u4f7f\u7528\u7684\u7a0b\u5e8f\u3002\u6211\u4eec\u5df2\u7ecf\u4e86\u89e3\u4e86\u5982\u4f55\u4f7f\u7528Spring\u4f9d\u8d56\u6ce8\u5165\u6765\u5b9e\u73b0IoC\u3002Spring IoC\u5bb9\u5668\u7c7b\u4f4d\u4e8eorg.springframework.beans\u548corg.springframework.context\u5305\u4e2d\u3002Spring IoC\u5bb9\u5668\u4e3a\u6211\u4eec\u63d0\u4f9b\u4e86\u4e0d\u540c\u7684\u65b9\u6cd5\u6765\u89e3\u8026\u5bf9\u8c61\u7684\u4f9d\u8d56\u5173\u7cfb\u3002BeanFactory\u662fSpring IoC\u5bb9\u5668\u7684\u6839\u63a5\u53e3\u3002ApplicationContext\u662fBeanFactory\u63a5\u53e3\u7684\u5b50\u63a5\u53e3\uff0c\u63d0\u4f9b\u4e86Spring AOP\u7684\u529f\u80fd\uff0c\u56fd\u9645\u5316\u7b49\u3002ApplicationContext\u7684\u4e00\u4e9b\u6709\u7528\u7684\u5b50\u63a5\u53e3\u5305\u62ecConfigurableApplicationContext\u548cWebApplicationContext\u3002Spring\u6846\u67b6\u63d0\u4f9b\u4e86\u8bb8\u591a\u6709\u7528\u7684ApplicationContext\u5b9e\u73b0\u7c7b\uff0c\u6211\u4eec\u53ef\u4ee5\u4f7f\u7528\u5b83\u4eec\u6765\u83b7\u53d6Spring\u4e0a\u4e0b\u6587\uff0c\u7136\u540e\u83b7\u53d6Spring Bean\u3002\u6211\u4eec\u4f7f\u7528\u7684\u4e00\u4e9b\u6709\u7528\u7684ApplicationContext\u5b9e\u73b0\u5305\u62ec\uff1a<\/p>\n

        \n
      • AnnotationConfigApplicationContext: \u5982\u679c\u6211\u4eec\u5728\u72ec\u7acb\u7684Java\u5e94\u7528\u7a0b\u5e8f\u4e2d\u4f7f\u7528Spring\u5e76\u4f7f\u7528\u6ce8\u89e3\u8fdb\u884c\u914d\u7f6e\uff0c\u90a3\u4e48\u6211\u4eec\u53ef\u4ee5\u4f7f\u7528\u5b83\u6765\u521d\u59cb\u5316\u5bb9\u5668\u5e76\u83b7\u53d6bean\u5bf9\u8c61\u3002<\/li>\n
      • ClassPathXmlApplicationContext: \u5982\u679c\u6211\u4eec\u5728\u72ec\u7acb\u5e94\u7528\u7a0b\u5e8f\u4e2d\u6709spring bean\u914d\u7f6exml\u6587\u4ef6\uff0c\u90a3\u4e48\u6211\u4eec\u53ef\u4ee5\u4f7f\u7528\u8fd9\u4e2a\u7c7b\u6765\u52a0\u8f7d\u6587\u4ef6\u5e76\u83b7\u53d6\u5bb9\u5668\u5bf9\u8c61\u3002<\/li>\n
      • FileSystemXmlApplicationContext: \u8fd9\u4e0eClassPathXmlApplicationContext\u7c7b\u4f3c\uff0c\u4e0d\u540c\u4e4b\u5904\u5728\u4e8exml\u914d\u7f6e\u6587\u4ef6\u53ef\u4ee5\u4ece\u6587\u4ef6\u7cfb\u7edf\u7684\u4efb\u4f55\u4f4d\u7f6e\u52a0\u8f7d\u3002<\/li>\n
      • AnnotationConfigWebApplicationContext\u548cXmlWebApplicationContext\u7528\u4e8eWeb\u5e94\u7528\u7a0b\u5e8f\u3002<\/li>\n<\/ul>\n

        \u901a\u5e38\u60c5\u51b5\u4e0b\uff0c\u5982\u679c\u60a8\u6b63\u5728\u5904\u7406Spring MVC\u5e94\u7528\u7a0b\u5e8f\u5e76\u4e14\u5e94\u7528\u7a0b\u5e8f\u5df2\u914d\u7f6e\u4e3a\u4f7f\u7528Spring\u6846\u67b6\uff0c\u5f53\u5e94\u7528\u7a0b\u5e8f\u542f\u52a8\u65f6\uff0cSpring IoC\u5bb9\u5668\u4f1a\u521d\u59cb\u5316\uff0c\u5e76\u4e14\u5728\u8bf7\u6c42Bean\u65f6\u4f1a\u81ea\u52a8\u6ce8\u5165\u4f9d\u8d56\u9879\u3002\u7136\u800c\uff0c\u5bf9\u4e8e\u4e00\u4e2a\u72ec\u7acb\u7684\u5e94\u7528\u7a0b\u5e8f\uff0c\u60a8\u9700\u8981\u5728\u5e94\u7528\u7a0b\u5e8f\u7684\u67d0\u4e2a\u4f4d\u7f6e\u521d\u59cb\u5316\u5bb9\u5668\uff0c\u7136\u540e\u4f7f\u7528\u5b83\u6765\u83b7\u53d6Spring\u7684Bean\u3002<\/p>\n

        Spring Bean<\/h3>\n

        \u5728Spring\u6846\u67b6\u4e2d\uff0cSpring Bean\u5e76\u6ca1\u6709\u4ec0\u4e48\u7279\u522b\u4e4b\u5904\uff0c\u5b83\u6307\u7684\u662f\u901a\u8fc7Spring\u5bb9\u5668\u521d\u59cb\u5316\u7684\u4efb\u4f55\u5bf9\u8c61\u3002\u53ea\u8981\u901a\u8fc7\u63d0\u4f9b\u914d\u7f6e\u5143\u6570\u636e\u4fe1\u606f\u5c06\u666e\u901a\u7684Java POJO\u7c7b\u914d\u7f6e\u4e3a\u901a\u8fc7\u5bb9\u5668\u521d\u59cb\u5316\uff0c\u5b83\u5c31\u53ef\u4ee5\u6210\u4e3aSpring Bean\u3002<\/p>\n

        Spring Bean \u4f5c\u7528\u8303\u56f4<\/h3>\n

        Spring Beans\u6709\u4e94\u4e2a\u5b9a\u4e49\u8303\u56f4\u3002<\/p>\n

          \n
        1. \u5355\u4f8b – \u6bcf\u4e2a\u5bb9\u5668\u53ea\u4f1a\u521b\u5efa\u4e00\u4e2a\u5b9e\u4f8b\u3002\u8fd9\u662fSpring Bean\u7684\u9ed8\u8ba4\u8303\u56f4\u3002\u5728\u4f7f\u7528\u6b64\u8303\u56f4\u65f6\uff0c\u8bf7\u786e\u4fddbean\u6ca1\u6709\u5171\u4eab\u5b9e\u4f8b\u53d8\u91cf\uff0c\u5426\u5219\u53ef\u80fd\u4f1a\u5bfc\u81f4\u6570\u636e\u4e0d\u4e00\u81f4\u7684\u95ee\u9898\u3002<\/li>\n
        2. \u539f\u578b – \u6bcf\u6b21\u8bf7\u6c42bean\u65f6\u90fd\u4f1a\u521b\u5efa\u4e00\u4e2a\u65b0\u5b9e\u4f8b\u3002<\/li>\n
        3. \u8bf7\u6c42 – \u8fd9\u4e0e\u539f\u578b\u8303\u56f4\u7c7b\u4f3c\uff0c\u4f46\u662f\u5b83\u9002\u7528\u4e8eWeb\u5e94\u7528\u7a0b\u5e8f\u3002\u6bcf\u4e2aHTTP\u8bf7\u6c42\u90fd\u4f1a\u521b\u5efa\u4e00\u4e2a\u65b0\u7684bean\u5b9e\u4f8b\u3002<\/li>\n
        4. \u4f1a\u8bdd – \u5bb9\u5668\u4f1a\u4e3a\u6bcf\u4e2aHTTP\u4f1a\u8bdd\u521b\u5efa\u4e00\u4e2a\u65b0\u7684bean\u3002<\/li>\n
        5. \u5168\u5c40\u4f1a\u8bdd – \u7528\u4e8e\u521b\u5efaPortlet\u5e94\u7528\u7a0b\u5e8f\u7684\u5168\u5c40\u4f1a\u8bddbean\u3002<\/li>\n<\/ol>\n

          Spring Framework\u662f\u53ef\u6269\u5c55\u7684\uff0c\u6211\u4eec\u4e5f\u53ef\u4ee5\u521b\u5efa\u81ea\u5df1\u7684\u8303\u56f4\u3002\u7136\u800c\uff0c\u5927\u90e8\u5206\u65f6\u95f4\u6211\u4eec\u90fd\u6ee1\u8db3\u4e8e\u6846\u67b6\u63d0\u4f9b\u7684\u8303\u56f4\u3002<\/p>\n

          Spring Bean\u914d\u7f6e<\/h3>\n

          Spring\u6846\u67b6\u63d0\u4f9b\u4e86\u4e09\u79cd\u914d\u7f6ebean\u4f9b\u5e94\u7528\u7a0b\u5e8f\u4f7f\u7528\u7684\u65b9\u6cd5\u3002<\/p>\n

            \n
          1. \u57fa\u4e8e\u6ce8\u89e3\u7684\u914d\u7f6e – \u901a\u8fc7\u4f7f\u7528@Service\u6216@Component\u6ce8\u89e3\u3002\u8303\u56f4\u7ec6\u8282\u53ef\u4ee5\u7528@Scope\u6ce8\u89e3\u63d0\u4f9b\u3002<\/li>\n
          2. \u57fa\u4e8eXML\u7684\u914d\u7f6e – \u901a\u8fc7\u521b\u5efaSpring\u914d\u7f6eXML\u6587\u4ef6\u6765\u914d\u7f6ebean\u3002\u5982\u679c\u4f7f\u7528Spring MVC\u6846\u67b6\uff0c\u53ef\u4ee5\u901a\u8fc7\u5728web.xml\u6587\u4ef6\u4e2d\u7f16\u5199\u4e00\u4e9b\u6837\u677f\u4ee3\u7801\u6765\u81ea\u52a8\u52a0\u8f7d\u57fa\u4e8exml\u7684\u914d\u7f6e\u3002<\/li>\n
          3. \u57fa\u4e8eJava\u7684\u914d\u7f6e – \u4eceSpring 3.0\u5f00\u59cb\uff0c\u6211\u4eec\u53ef\u4ee5\u4f7f\u7528Java\u7a0b\u5e8f\u6765\u914d\u7f6eSpring beans\u3002\u4e00\u4e9b\u91cd\u8981\u7684\u7528\u4e8e\u57fa\u4e8eJava\u7684\u914d\u7f6e\u7684\u6ce8\u89e3\u5305\u62ec@Configuration\uff0c@ComponentScan\u548c@Bean\u3002<\/li>\n<\/ol>\n

            Spring IoC\u548cSpring Bean\u793a\u4f8b\u9879\u76ee<\/h3>\n

            \u8ba9\u6211\u4eec\u6765\u770b\u4e00\u4e0b\u5728\u4e00\u4e2a\u7b80\u5355\u7684Spring\u9879\u76ee\u4e2d\uff0cSpring IoC\u5bb9\u5668\u548cSpring Bean\u914d\u7f6e\u7684\u4e0d\u540c\u65b9\u9762\u3002\u4f5c\u4e3a\u6211\u7684\u4f8b\u5b50\uff0c\u6211\u5c06\u5728Spring\u5de5\u5177\u5957\u4ef6\u4e2d\u521b\u5efa\u4e00\u4e2aSpring MVC\u9879\u76ee\u3002\u5982\u679c\u4f60\u662fSpring\u5de5\u5177\u5957\u4ef6\u548cSpring MVC\u7684\u65b0\u624b\uff0c\u8bf7\u9605\u8bfbSpring MVC\u6559\u7a0b\u3002\u6700\u7ec8\u7684\u9879\u76ee\u7ed3\u6784\u5982\u4e0b\u56fe\u6240\u793a\u3002\u8ba9\u6211\u4eec\u9010\u4e2a\u5730\u770b\u4e00\u4e0bSpring IoC\u548cSpring Bean\u9879\u76ee\u7684\u4e0d\u540c\u7ec4\u4ef6\u3002<\/p>\n

            \u57fa\u4e8e XML \u7684 Spring Bean \u914d\u7f6e<\/h3>\n

            MyBean\u662f\u4e00\u4e2a\u7b80\u5355\u7684Java POJO\u7c7b\u3002<\/p>\n

            package com.Olivia.spring.beans;\r\n\r\npublic class MyBean {\r\n\r\n\tprivate String name;\r\n\t\r\n\tpublic String getName() {\r\n\t\treturn name;\r\n\t}\r\n\tpublic void setName(String name) {\r\n\t\tthis.name = name;\r\n\t}\r\n\t\r\n}\r\n<\/code><\/pre>\n
            Spring\u914d\u7f6e\u7684XML\u6587\u4ef6<\/h4>\n
            \u8fd9\u662f\u6587\u7ae0\u300aSpring IoC\uff0cSpring Bean\u793a\u4f8b\u6559\u7a0b\u300b\u7684\u7b2c2\u90e8\u5206\uff08\u51713\u90e8\u5206\uff09\u3002<\/p>\n
            \u5185\u5bb9\u7247\u6bb5: servlet-context.xml\u7684\u4ee3\u7801\uff1a<\/p>\n
            <?xml version=\"1.0\" encoding=\"UTF-8\"?>\r\n<beans:beans xmlns=\"https:\/\/www.springframework.org\/schema\/mvc\"\r\n\txmlns:xsi=\"https:\/\/www.w3.org\/2001\/XMLSchema-instance\"\r\n\txmlns:beans=\"https:\/\/www.springframework.org\/schema\/beans\"\r\n\txmlns:context=\"https:\/\/www.springframework.org\/schema\/context\"\r\n\txsi:schemaLocation=\"https:\/\/www.springframework.org\/schema\/mvc https:\/\/www.springframework.org\/schema\/mvc\/spring-mvc.xsd\r\n\t\thttps:\/\/www.springframework.org\/schema\/beans https:\/\/www.springframework.org\/schema\/beans\/spring-beans.xsd\r\n\t\thttps:\/\/www.springframework.org\/schema\/context https:\/\/www.springframework.org\/schema\/context\/spring-context.xsd\">\r\n\r\n\t<!-- DispatcherServlet\u4e0a\u4e0b\u6587\uff1a\u5b9a\u4e49\u6b64servlet\u7684\u8bf7\u6c42\u5904\u7406\u57fa\u7840\u8bbe\u65bd -->\r\n\t\r\n\t<!-- \u542f\u7528Spring MVC @Controller\u7f16\u7a0b\u6a21\u578b -->\r\n\t<annotation-driven \/>\r\n\r\n\t<!-- \u901a\u8fc7\u9ad8\u6548\u5730\u63d0\u4f9b${webappRoot}\/resources\u76ee\u5f55\u4e2d\u7684\u9759\u6001\u8d44\u6e90\u6765\u5904\u7406\u5bf9\/resources\/**\u7684HTTP GET\u8bf7\u6c42 -->\r\n\t<resources mapping=\"\/resources\/**\" location=\"\/resources\/\" \/>\r\n\r\n\t<!-- \u5c06\u7531@Controllers\u9009\u62e9\u7528\u4e8e\u6e32\u67d3\u7684\u89c6\u56fe\u89e3\u6790\u4e3a\/WEB-INF\/views\u76ee\u5f55\u4e2d\u7684.jsp\u8d44\u6e90 -->\r\n\t<beans:bean class=\"org.springframework.web.servlet.view.InternalResourceViewResolver\">\r\n\t\t<beans:property name=\"prefix\" value=\"\/WEB-INF\/views\/\" \/>\r\n\t\t<beans:property name=\"suffix\" value=\".jsp\" \/>\r\n\t<\/beans:bean>\r\n\t\r\n\t<context:component-scan base-package=\"com.Olivia.spring\" \/>\r\n\t\r\n\t<beans:bean name=\"myBean\" class=\"com.Olivia.spring.beans.MyBean\" scope=\"singleton\" ><\/beans:bean>\r\n\t\r\n<\/beans:beans>\r\n<\/code><\/pre>\n
            \u8bf7\u6ce8\u610f\uff0cMyBean\u662f\u4f7f\u7528\u4f5c\u7528\u57df\u4e3a\u5355\u4f8b\u7684bean\u5143\u7d20\u8fdb\u884c\u914d\u7f6e\u7684\u3002<\/p>\n
            \u57fa\u4e8e\u6ce8\u89e3\u7684Spring Bean\u914d\u7f6e<\/h3>\n
            package com.Olivia.spring.beans;\r\n\r\nimport org.springframework.context.annotation.Scope;\r\nimport org.springframework.stereotype.Service;\r\nimport org.springframework.web.context.WebApplicationContext;\r\n\r\n@Service\r\n@Scope(WebApplicationContext.SCOPE_REQUEST)\r\npublic class MyAnnotatedBean {\r\n\r\n\tprivate int empId;\r\n\r\n\tpublic int getEmpId() {\r\n\t\treturn empId;\r\n\t}\r\n\r\n\tpublic void setEmpId(int empId) {\r\n\t\tthis.empId = empId;\r\n\t}\r\n\t\r\n}\r\n<\/code><\/pre>\n
            \u6211\u7684\u6ce8\u89e3\u5316Bean\u662f\u901a\u8fc7@Service\u6ce8\u89e3\u8fdb\u884c\u914d\u7f6e\u7684\uff0c\u5e76\u4e14\u4f5c\u7528\u57df\u88ab\u8bbe\u7f6e\u4e3aRequest\u3002<\/p>\n
            Spring IoC\u63a7\u5236\u5668\u7c7b<\/h3>\n
            HomeController\u7c7b\u5c06\u5904\u7406\u5e94\u7528\u7a0b\u5e8f\u4e3b\u9875\u7684HTTP\u8bf7\u6c42\u3002\u6211\u4eec\u5c06\u901a\u8fc7WebApplicationContext\u5bb9\u5668\u5c06Spring beans\u6ce8\u5165\u5230\u6b64\u63a7\u5236\u5668\u7c7b\u4e2d\u3002<\/p>\n
            package com.Olivia.spring.controller;\r\n\r\nimport java.text.DateFormat;\r\nimport java.util.Date;\r\nimport java.util.Locale;\r\n\r\nimport org.springframework.beans.factory.annotation.Autowired;\r\nimport org.springframework.context.annotation.Scope;\r\nimport org.springframework.stereotype.Controller;\r\nimport org.springframework.ui.Model;\r\nimport org.springframework.web.bind.annotation.RequestMapping;\r\nimport org.springframework.web.bind.annotation.RequestMethod;\r\n\r\nimport com.Olivia.spring.beans.MyAnnotatedBean;\r\nimport com.Olivia.spring.beans.MyBean;\r\n\r\n@Controller\r\n@Scope(\"request\")\r\npublic class HomeController {\r\n\t\t\r\n\tprivate MyBean myBean;\r\n\t\r\n\tprivate MyAnnotatedBean myAnnotatedBean;\r\n\r\n\t@Autowired\r\n\tpublic void setMyBean(MyBean myBean) {\r\n\t\tthis.myBean = myBean;\r\n\t}\r\n\r\n\t@Autowired\r\n\tpublic void setMyAnnotatedBean(MyAnnotatedBean obj) {\r\n\t\tthis.myAnnotatedBean = obj;\r\n\t}\r\n\t\r\n\t\/**\r\n\t * \u901a\u8fc7\u8fd4\u56de\u89c6\u56fe\u540d\u79f0\u6765\u7b80\u5355\u9009\u62e9\u8981\u6e32\u67d3\u7684\u4e3b\u9875\u89c6\u56fe\u3002\r\n\t *\/\r\n\t@RequestMapping(value = \"\/\", method = RequestMethod.GET)\r\n\tpublic String home(Locale locale, Model model) {\r\n\t\tSystem.out.println(\"MyBean hashcode=\"+myBean.hashCode());\r\n\t\tSystem.out.println(\"MyAnnotatedBean hashcode=\"+myAnnotatedBean.hashCode());\r\n\t\t\r\n\t\tDate date = new Date();\r\n\t\tDateFormat dateFormat = DateFormat.getDateTimeInstance(DateFormat.LONG, DateFormat.LONG, locale);\r\n\t\t\r\n\t\tString formattedDate = dateFormat.format(date);\r\n\t\t\r\n\t\tmodel.addAttribute(\"serverTime\", formattedDate );\r\n\t\t\r\n\t\treturn \"home\";\r\n\t}\r\n\t\r\n}\r\n<\/code><\/pre>\n
            \u90e8\u7f72\u63cf\u8ff0\u7b26<\/h3>\n
            \u6211\u4eec\u9700\u8981\u4e3aSpring\u6846\u67b6\u914d\u7f6e\u5e94\u7528\u7a0b\u5e8f\uff0c\u4ee5\u4fbf\u52a0\u8f7d\u914d\u7f6e\u5143\u6570\u636e\u5e76\u521d\u59cb\u5316\u4e0a\u4e0b\u6587\u3002<\/p>\n
            <?xml version=\"1.0\" encoding=\"UTF-8\"?>\r\n<web-app version=\"2.5\" xmlns=\"https:\/\/java.sun.com\/xml\/ns\/javaee\"\r\n\txmlns:xsi=\"https:\/\/www.w3.org\/2001\/XMLSchema-instance\"\r\n\txsi:schemaLocation=\"https:\/\/java.sun.com\/xml\/ns\/javaee https:\/\/java.sun.com\/xml\/ns\/javaee\/web-app_2_5.xsd\">\r\n\r\n\t<!-- The definition of the Root Spring Container shared by all Servlets and Filters -->\r\n\t<context-param>\r\n\t\t<param-name>contextConfigLocation<\/param-name>\r\n\t\t<param-value>\/WEB-INF\/spring\/root-context.xml<\/param-value>\r\n\t<\/context-param>\r\n\t\r\n\t<!-- Creates the Spring Container shared by all Servlets and Filters -->\r\n\t<listener>\r\n\t\t<listener-class>org.springframework.web.context.ContextLoaderListener<\/listener-class>\r\n\t<\/listener>\r\n\r\n\t<!-- Processes application requests -->\r\n\t<servlet>\r\n\t\t<servlet-name>appServlet<\/servlet-name>\r\n\t\t<servlet-class>org.springframework.web.servlet.DispatcherServlet<\/servlet-class>\r\n\t\t<init-param>\r\n\t\t\t<param-name>contextConfigLocation<\/param-name>\r\n\t\t\t<param-value>\/WEB-INF\/spring\/appServlet\/servlet-context.xml<\/param-value>\r\n\t\t<\/init-param>\r\n\t\t<load-on-startup>1<\/load-on-startup>\r\n\t<\/servlet>\r\n\t\t\r\n\t<servlet-mapping>\r\n\t\t<servlet-name>appServlet<\/servlet-name>\r\n\t\t<url-pattern>\/<\/url-pattern>\r\n\t<\/servlet-mapping>\r\n\r\n<\/web-app>\r\n<\/code><\/pre>\n
            \u51e0\u4e4e\u6240\u6709\u4e0a\u8ff0\u7684\u914d\u7f6e\u90fd\u662f\u7531STS\u5de5\u5177\u81ea\u52a8\u751f\u6210\u7684\u6a21\u677f\u4ee3\u7801\u3002<\/p>\n
            \u8fd0\u884cSpring IoC Bean\u793a\u4f8b\u5e94\u7528\u7a0b\u5e8f<\/h3>\n
            \u73b0\u5728\uff0c\u5f53\u60a8\u542f\u52a8web\u5e94\u7528\u7a0b\u5e8f\u65f6\uff0c\u4e3b\u9875\u5c06\u88ab\u52a0\u8f7d\uff0c\u5e76\u4e14\u5728\u63a7\u5236\u53f0\u4e2d\uff0c\u5f53\u60a8\u591a\u6b21\u5237\u65b0\u9875\u9762\u65f6\uff0c\u4ee5\u4e0b\u65e5\u5fd7\u5c06\u88ab\u6253\u5370\u51fa\u6765\u3002<\/p>\n
            MyBean hashcode=118267258\r\nMyAnnotatedBean hashcode=1703899856\r\nMyBean hashcode=118267258\r\nMyAnnotatedBean hashcode=1115599742\r\nMyBean hashcode=118267258\r\nMyAnnotatedBean hashcode=516457106\r\n<\/code><\/pre>\n
            \u8bf7\u6ce8\u610f\uff0cMyBean\u88ab\u914d\u7f6e\u4e3a\u5355\u4f8b\uff0c\u56e0\u6b64\u5bb9\u5668\u59cb\u7ec8\u8fd4\u56de\u76f8\u540c\u7684\u5b9e\u4f8b\uff0c\u54c8\u5e0c\u7801\u59cb\u7ec8\u76f8\u540c\u3002\u540c\u6837\uff0c\u5bf9\u4e8e\u6bcf\u4e2a\u8bf7\u6c42\uff0c\u90fd\u4f1a\u521b\u5efa\u4e00\u4e2a\u5177\u6709\u4e0d\u540c\u54c8\u5e0c\u7801\u7684\u65b0\u5b9e\u4f8bMyAnnotatedBean\u3002<\/p>\n
            \u57fa\u4e8eJava\u7684Spring Bean\u914d\u7f6e<\/h3>\n
            \u5bf9\u4e8e\u72ec\u7acb\u5e94\u7528\u7a0b\u5e8f\uff0c\u6211\u4eec\u53ef\u4ee5\u4f7f\u7528\u57fa\u4e8e\u6ce8\u89e3\u7684\u914d\u7f6e\u548c\u57fa\u4e8eXML\u7684\u914d\u7f6e\u3002\u552f\u4e00\u7684\u8981\u6c42\u662f\u5728\u7a0b\u5e8f\u4e2d\u7684\u67d0\u4e2a\u5730\u65b9\u521d\u59cb\u5316\u4e0a\u4e0b\u6587\uff0c\u4e4b\u540e\u624d\u80fd\u4f7f\u7528\u5b83\u3002<\/p>\n
            package com.Olivia.spring.main;\r\n\r\nimport java.util.Date;\r\n\r\npublic class MyService {\r\n\r\n\tpublic void log(String msg){\r\n\t\tSystem.out.println(new Date()+\"::\"+msg);\r\n\t}\r\n}\r\n<\/code><\/pre>\n
            \u6211\u7684\u670d\u52a1\u662f\u4e00\u4e2a\u7b80\u5355\u7684Java\u7c7b\uff0c\u62e5\u6709\u4e00\u4e9b\u65b9\u6cd5\u3002<\/p>\n
            package com.Olivia.spring.main;\r\n\r\nimport org.springframework.context.annotation.Bean;\r\nimport org.springframework.context.annotation.ComponentScan;\r\nimport org.springframework.context.annotation.Configuration;\r\n\r\n@Configuration\r\n@ComponentScan(value=\"com.Olivia.spring.main\")\r\npublic class MyConfiguration {\r\n\r\n\t@Bean\r\n\tpublic MyService getService(){\r\n\t\treturn new MyService();\r\n\t}\r\n}\r\n<\/code><\/pre>\n
            \u5c06\u7528\u4e8e\u521d\u59cb\u5316Spring\u5bb9\u5668\u7684\u57fa\u4e8e\u6ce8\u89e3\u7684\u914d\u7f6e\u7c7b\u3002<\/p>\n
            package com.Olivia.spring.main;\r\n\r\nimport org.springframework.context.annotation.AnnotationConfigApplicationContext;\r\n\r\npublic class MyMainClass {\r\n\r\n\tpublic static void main(String[] args) {\r\n\t\t\r\n\t\tAnnotationConfigApplicationContext ctx = new AnnotationConfigApplicationContext(\r\n\t\t\t\tMyConfiguration.class);\r\n\t\tMyService service = ctx.getBean(MyService.class);\r\n\t\t\r\n\t\tservice.log(\"Hi\");\r\n\t\t\r\n\t\tMyService newService = ctx.getBean(MyService.class);\r\n\t\tSystem.out.println(\"service hashcode=\"+service.hashCode());\r\n\t\tSystem.out.println(\"newService hashcode=\"+newService.hashCode());\r\n\t\tctx.close();\r\n\t}\r\n\r\n}\r\n<\/code><\/pre>\n
            \u5728\u8fd9\u4e2a\u7b80\u5355\u7684\u6d4b\u8bd5\u7a0b\u5e8f\u4e2d\uff0c\u6211\u4eec\u521d\u59cb\u5316\u4e86 AnnotationConfigApplicationContext \u4e0a\u4e0b\u6587\uff0c\u7136\u540e\u4f7f\u7528 getBean() \u65b9\u6cd5\u83b7\u5f97 MyService \u7684\u5b9e\u4f8b\u3002\u8bf7\u6ce8\u610f\uff0c\u6211\u8c03\u7528\u4e86 getBean \u65b9\u6cd5\u4e24\u6b21\u5e76\u6253\u5370\u4e86\u54c8\u5e0c\u7801\u3002\u7531\u4e8e MyService \u6ca1\u6709\u5b9a\u4e49\u4f5c\u7528\u57df\uff0c\u5b83\u5e94\u8be5\u662f\u5355\u4f8b\u7684\uff0c\u56e0\u6b64\u4e24\u4e2a\u5b9e\u4f8b\u7684\u54c8\u5e0c\u7801\u5e94\u8be5\u662f\u76f8\u540c\u7684\u3002\u5f53\u6211\u4eec\u8fd0\u884c\u4e0a\u8ff0\u5e94\u7528\u7a0b\u5e8f\u65f6\uff0c\u6211\u4eec\u4f1a\u5f97\u5230\u4ee5\u4e0b\u63a7\u5236\u53f0\u8f93\u51fa\uff0c\u786e\u8ba4\u4e86\u6211\u4eec\u7684\u7406\u89e3\u3002<\/p>\n
            Sat Dec 28 22:49:18 PST 2013::Hi\r\nservice hashcode=678984726\r\nnewService hashcode=678984726\r\n<\/code><\/pre>\n
            \u5982\u679c\u4f60\u6b63\u5728\u5bfb\u627e\u57fa\u4e8eXML\u7684\u914d\u7f6e\u65b9\u5f0f\uff0c\u53ea\u9700\u521b\u5efaSpring XML\u914d\u7f6e\u6587\u4ef6\uff0c\u7136\u540e\u4f7f\u7528\u4ee5\u4e0b\u4ee3\u7801\u7247\u6bb5\u521d\u59cb\u5316\u4e0a\u4e0b\u6587\u5373\u53ef\u3002<\/p>\n
            ClassPathXmlApplicationContext context = new ClassPathXmlApplicationContext(\r\n                \"applicationContext.xml\");\r\n        MyService app = context.getBean(MyService.class);\r\n<\/code><\/pre>\n
            \u8fd9\u5c31\u662f\u5173\u4e8eSpring IoC\u793a\u4f8b\u6559\u7a0b\u3001Spring Bean\u4f5c\u7528\u57df\u548c\u914d\u7f6e\u7ec6\u8282\u7684\u5168\u90e8\u5185\u5bb9\u3002\u60a8\u53ef\u4ee5\u4ece\u4e0b\u9762\u7684\u94fe\u63a5\u4e2d\u4e0b\u8f7dSpring IoC\u548cSpring Bean\u793a\u4f8b\u9879\u76ee\uff0c\u901a\u8fc7\u5bf9\u5176\u8fdb\u884c\u64cd\u4f5c\u6765\u66f4\u597d\u5730\u7406\u89e3\u3002<\/p>\n
            \u4e0b\u8f7d\u4e00\u4e2aSpring Beans\u9879\u76ee\u3002<\/p>\n
            \u53c2\u8003\u8d44\u6599\uff1aIOC\u7684Spring IO\u9875\u9762<\/p>\n","protected":false},"excerpt":{"rendered":"
            \u6b22\u8fce\u6765\u5230 Spring IoC \u793a\u4f8b\u6559\u7a0b\u3002Spring Framework \u662f\u57fa\u4e8e\u63a7\u5236\u53cd\u8f6c\u539f\u5219\u6784\u5efa\u7684\u3002\u4f9d\u8d56\u6ce8\u5165 […]<\/p>\n","protected":false},"author":3,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[1997,761,1998,1999,1089],"class_list":["post-727","post","type-post","status-publish","format-standard","hentry","category-uncategorized","tag-ioc","tag-java","tag-spring-bean","tag-spring"],"yoast_head":"\n\u6df1\u5165\u7406\u89e3Spring IoC\u4e0eBean\uff1a\u5b8c\u6574\u793a\u4f8b\u6559\u7a0b\u4e0e\u5b9e\u6218\u6307\u5357 - Blog - Silicon Cloud<\/title>\n<meta name=\"description\" content=\"\u672c\u6559\u7a0b\u6df1\u5165\u8bb2\u89e3Spring\u6846\u67b6\u6838\u5fc3\u6982\u5ff5IoC(\u63a7\u5236\u53cd\u8f6c)\u4e0eBean\u7684\u539f\u7406\u4e0e\u5e94\u7528\u3002\u901a\u8fc7\u4e30\u5bcc\u7684\u4ee3\u7801\u793a\u4f8b\uff0c\u5e2e\u52a9\u5f00\u53d1\u8005\u7406\u89e3Spring\u4f9d\u8d56\u6ce8\u5165\u673a\u5236\uff0c\u638c\u63e1Bean\u7684\u751f\u547d\u5468\u671f\u7ba1\u7406\u3002\u9002\u5408Java\u5f00\u53d1\u8005\u5b66\u4e60Spring\u6846\u67b6\u57fa\u7840\uff0c\u63d0\u5347\u4f01\u4e1a\u7ea7\u5e94\u7528\u5f00\u53d1\u80fd\u529b\u3002\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.silicloud.com\/zh\/blog\/spring-ioc\uff0cspring-bean\u793a\u4f8b\u6559\u7a0b\u3002\/\" \/>\n<meta property=\"og:locale\" content=\"zh_CN\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"\u6df1\u5165\u7406\u89e3Spring IoC\u4e0eBean\uff1a\u5b8c\u6574\u793a\u4f8b\u6559\u7a0b\u4e0e\u5b9e\u6218\u6307\u5357\" \/>\n<meta property=\"og:description\" content=\"\u672c\u6559\u7a0b\u6df1\u5165\u8bb2\u89e3Spring\u6846\u67b6\u6838\u5fc3\u6982\u5ff5IoC(\u63a7\u5236\u53cd\u8f6c)\u4e0eBean\u7684\u539f\u7406\u4e0e\u5e94\u7528\u3002\u901a\u8fc7\u4e30\u5bcc\u7684\u4ee3\u7801\u793a\u4f8b\uff0c\u5e2e\u52a9\u5f00\u53d1\u8005\u7406\u89e3Spring\u4f9d\u8d56\u6ce8\u5165\u673a\u5236\uff0c\u638c\u63e1Bean\u7684\u751f\u547d\u5468\u671f\u7ba1\u7406\u3002\u9002\u5408Java\u5f00\u53d1\u8005\u5b66\u4e60Spring\u6846\u67b6\u57fa\u7840\uff0c\u63d0\u5347\u4f01\u4e1a\u7ea7\u5e94\u7528\u5f00\u53d1\u80fd\u529b\u3002\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.silicloud.com\/zh\/blog\/spring-ioc\uff0cspring-bean\u793a\u4f8b\u6559\u7a0b\u3002\/\" \/>\n<meta property=\"og:site_name\" content=\"Blog - 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