{"id":2815,"date":"2022-12-22T14:38:15","date_gmt":"2022-12-22T06:38:15","guid":{"rendered":"https:\/\/qaqaq.top\/?p=2815"},"modified":"2022-12-22T17:12:19","modified_gmt":"2022-12-22T09:12:19","slug":"ioc%e5%ae%b9%e5%99%a8-bean%e7%ae%a1%e7%90%86%e5%9f%ba%e4%ba%8e%e6%b3%a8%e8%a7%a3%e6%96%b9%e5%bc%8f","status":"publish","type":"post","link":"https:\/\/qaqaq.top\/?p=2815","title":{"rendered":"IOC\u5bb9\u5668-Bean\u7ba1\u7406\u57fa\u4e8e\u6ce8\u89e3\u65b9\u5f0f"},"content":{"rendered":"\n<h2 class=\"wp-block-heading\">IOC \u64cd\u4f5c Bean \u7ba1\u7406(\u57fa\u4e8e\u6ce8\u89e3\u65b9\u5f0f)<\/h2>\n\n\n\n<p>1\u3001\u4ec0\u4e48\u662f\u6ce8\u89e3<br>\uff081\uff09\u6ce8\u89e3\u662f\u4ee3\u7801\u7279\u6b8a\u6807\u8bb0\uff0c\u683c\u5f0f\uff1a@\u6ce8\u89e3\u540d\u79f0(\u5c5e\u6027\u540d\u79f0=\u5c5e\u6027\u503c, \u5c5e\u6027\u540d\u79f0=\u5c5e\u6027\u503c..)<br>\uff082\uff09\u4f7f\u7528\u6ce8\u89e3\uff0c\u6ce8\u89e3\u4f5c\u7528\u5728\u7c7b\u4e0a\u9762\uff0c\u65b9\u6cd5\u4e0a\u9762\uff0c\u5c5e\u6027\u4e0a\u9762<br>\uff083\uff09\u4f7f\u7528\u6ce8\u89e3\u76ee\u7684\uff1a\u7b80\u5316 xml \u914d\u7f6e<\/p>\n\n\n\n<p>2\u3001Spring \u9488\u5bf9 Bean \u7ba1\u7406\u4e2d\u521b\u5efa\u5bf9\u8c61\u63d0\u4f9b\u6ce8\u89e3<br>\uff081\uff09@Component<br>\uff082\uff09@Service<br>\uff083\uff09@Controller<br>\uff084\uff09@Repository<\/p>\n\n\n\n<ul class=\"wp-block-list\"><li>\u4e0a\u9762\u56db\u4e2a\u6ce8\u89e3\u529f\u80fd\u662f\u4e00\u6837\u7684\uff0c\u90fd\u53ef\u4ee5\u7528\u6765\u521b\u5efa bean \u5b9e\u4f8b<\/li><\/ul>\n\n\n\n<p>3\u3001\u57fa\u4e8e\u6ce8\u89e3\u65b9\u5f0f\u5b9e\u73b0\u5bf9\u8c61\u521b\u5efa<\/p>\n\n\n\n<p>\u7b2c\u4e00\u6b65 \u5f15\u5165\u4f9d\u8d56<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><div class='fancybox-wrapper lazyload-container-unload' data-fancybox='post-images' href='https:\/\/qaqaq.top\/wp-content\/uploads\/2022\/12\/image-326-1024x152.png'><img class=\"lazyload lazyload-style-1\" src=\"data:image\/svg+xml;base64,PCEtLUFyZ29uTG9hZGluZy0tPgo8c3ZnIHdpZHRoPSIxIiBoZWlnaHQ9IjEiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyIgc3Ryb2tlPSIjZmZmZmZmMDAiPjxnPjwvZz4KPC9zdmc+\"  loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"152\" data-original=\"https:\/\/qaqaq.top\/wp-content\/uploads\/2022\/12\/image-326-1024x152.png\" src=\"data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAAANSURBVBhXYzh8+PB\/AAffA0nNPuCLAAAAAElFTkSuQmCC\" alt=\"\" class=\"wp-image-2822\"  sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/div><\/figure>\n\n\n\n<p>\u7b2c\u4e8c\u6b65 \u5f00\u542f\u7ec4\u4ef6\u626b\u63cf<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>    &lt;!-- \u5f00\u542f\u7ec4\u4ef6\u626b\u63cf\r\n        1 \u5982\u679c\u626b\u63cf\u591a\u4e2a\u5305\uff0c\u591a\u4e2a\u5305\u4f7f\u7528\u9017\u53f7\u9694\u5f00\r\n        2 \u626b\u63cf\u5305\u4e0a\u5c42\u76ee\u5f55\r\n    -->\r\n    &lt;context:component-scan base-package=\"top.qaqaq\">&lt;\/context:component-scan><\/code><\/pre>\n\n\n\n<p>\u7b2c\u4e09\u6b65 \u521b\u5efa\u7c7b\uff0c\u5728\u7c7b\u4e0a\u9762\u6dfb\u52a0\u521b\u5efa\u5bf9\u8c61\u6ce8\u89e3<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>\/**\n * @author RichieZhang\n * @create 2022-12-22 15:25\n *\/\n\n\/\/ \u5728\u6ce8\u89e3\u91cc\u9762value\u5c5e\u6027\u503c\u53ef\u4ee5\u7701\u7565\u4e0d\u5199\n\/\/ \u9ed8\u8ba4\u503c\u662f\u7c7b\u540d\u79f0\uff0c\u9996\u5b57\u6bcd\u5c0f\u5199\n\/\/\/UserService -- userService\n\/\/@Component(value = \"userService\")   \/\/&lt;bean id=\"\" class=\"\" \/>\n\n\/\/@Service\n\/\/@Controller\n\/\/@Repository\n\n@Service\npublic class UserService {\n\n    public void add() {\n        System.out.println(\"service add.......\");\n    }\n}\n<\/code><\/pre>\n\n\n\n<p>4\u3001\u5f00\u542f\u7ec4\u4ef6\u626b\u63cf\u7ec6\u8282\u914d\u7f6e<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>    &lt;!-- \u793a\u4f8b1\r\n        use-default-filters=\"false\" \u8868\u793a\u73b0\u5728\u4e0d\u4f7f\u7528\u9ed8\u8ba4filter\uff0c\u81ea\u5df1\u914d\u7f6efilter\r\n        context:include-filter , \u8bbe\u7f6e\u626b\u63cf\u54ea\u4e9b\u5185\u5bb9\r\n    -->\r\n    &lt;context:component-scan base-package=\"top.qaqaq\" use-default-filters=\"false\">\r\n        &lt;context:include-filter type=\"annotation\" expression=\"org.springframework.stereotype.Controller\"\/>\r\n    &lt;\/context:component-scan>\r\n    \r\n    &lt;!-- \u793a\u4f8b2 \r\n        \u4e0b\u9762\u914d\u7f6e\u626b\u63cf\u5305\u6240\u6709\u5185\u5bb9\r\n        context:exclude-filter\uff1a \u8bbe\u7f6e\u54ea\u4e9b\u5185\u5bb9\u4e0d\u8fdb\u884c\u626b\u63cf\r\n    -->\r\n    &lt;context:component-scan base-package=\"top.qaqaq\">\r\n        &lt;context:exclude-filter type=\"annotation\" expression=\"org.springframework.stereotype.Controller\"\/>\r\n    &lt;\/context:component-scan><\/code><\/pre>\n\n\n\n<p>5\u3001\u57fa\u4e8e\u6ce8\u89e3\u65b9\u5f0f\u5b9e\u73b0\u5c5e\u6027\u6ce8\u5165<\/p>\n\n\n\n<p>\uff081\uff09@Autowired\uff1a\u6839\u636e\u5c5e\u6027\u7c7b\u578b\u8fdb\u884c\u81ea\u52a8\u88c5\u914d<\/p>\n\n\n\n<p>\u7b2c\u4e00\u6b65 \u628a service \u548c dao \u5bf9\u8c61\u521b\u5efa\uff0c\u5728 service \u548c dao \u7c7b\u6dfb\u52a0\u521b\u5efa\u5bf9\u8c61\u6ce8\u89e3<br>\u7b2c\u4e8c\u6b65 \u5728 service \u6ce8\u5165 dao \u5bf9\u8c61\uff0c\u5728 service \u7c7b\u6dfb\u52a0 dao \u7c7b\u578b\u5c5e\u6027\uff0c\u5728\u5c5e\u6027\u4e0a\u9762\u4f7f\u7528\u6ce8\u89e3<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>\/**\n * @author RichieZhang\n * @create 2022-12-22 15:25\n *\/\n\n\/\/ \u5728\u6ce8\u89e3\u91cc\u9762value\u5c5e\u6027\u503c\u53ef\u4ee5\u7701\u7565\u4e0d\u5199\n\/\/ \u9ed8\u8ba4\u503c\u662f\u7c7b\u540d\u79f0\uff0c\u9996\u5b57\u6bcd\u5c0f\u5199\n\/\/\/UserService -- userService\n\/\/@Component(value = \"userService\")   \/\/&lt;bean id=\"\" class=\"\" \/>\n\n\/\/@Service\n\/\/@Controller\n\/\/@Repository\n\n@Service\npublic class UserService {\n\n<strong>    \/\/\u5b9a\u4e49dao\u7c7b\u578b\u5c5e\u6027\n    \/\/\u4e0d\u9700\u8981\u6dfb\u52a0set\u65b9\u6cd5\n    \/\/\u6dfb\u52a0\u6ce8\u5165\u5c5e\u6027\u6ce8\u89e3\n    @Autowired  \/\/ \u6839\u636e\u7c7b\u578b\u8fdb\u884c\u6ce8\u5165\n    private UserDao userDao;<\/strong>\n\n    public void add() {\n        System.out.println(\"service add.......\");\n        userDao.add();\n    }\n}<\/code><\/pre>\n\n\n\n<p>\uff082\uff09@Qualifier\uff1a\u6839\u636e\u540d\u79f0\u8fdb\u884c\u6ce8\u5165<\/p>\n\n\n\n<p>\u8fd9\u4e2a@Qualifier \u6ce8\u89e3\u7684\u4f7f\u7528\uff0c\u548c\u4e0a\u9762@Autowired \u4e00\u8d77\u4f7f\u7528<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>\/**\n * @author RichieZhang\n * @create 2022-12-22 15:25\n *\/\n\n\/\/ \u5728\u6ce8\u89e3\u91cc\u9762value\u5c5e\u6027\u503c\u53ef\u4ee5\u7701\u7565\u4e0d\u5199\n\/\/ \u9ed8\u8ba4\u503c\u662f\u7c7b\u540d\u79f0\uff0c\u9996\u5b57\u6bcd\u5c0f\u5199\n\/\/\/UserService -- userService\n\/\/@Component(value = \"userService\")   \/\/&lt;bean id=\"\" class=\"\" \/>\n\n\/\/@Service\n\/\/@Controller\n\/\/@Repository\n\n@Service\npublic class UserService {\n\n<strong>    \/\/\u5b9a\u4e49dao\u7c7b\u578b\u5c5e\u6027\n    \/\/\u4e0d\u9700\u8981\u6dfb\u52a0set\u65b9\u6cd5\n    \/\/\u6dfb\u52a0\u6ce8\u5165\u5c5e\u6027\u6ce8\u89e3\n    @Autowired  \/\/ \u6839\u636e\u7c7b\u578b\u8fdb\u884c\u6ce8\u5165\n    @Qualifier(value = \"userDaoImpl1\") \/\/\u6839\u636e\u540d\u79f0\u8fdb\u884c\u6ce8\u5165\n    private UserDao userDao<\/strong>;\n\n    public void add() {\n        System.out.println(\"service add.......\");\n        userDao.add();\n    }\n}<\/code><\/pre>\n\n\n\n<pre class=\"wp-block-code\"><code>\/**\n * @author RichieZhang\n * @create 2022-12-22 16:00\n *\/\npublic interface UserDao {\n    public void add();\n}<\/code><\/pre>\n\n\n\n<pre class=\"wp-block-code\"><code>\/**\n * @author RichieZhang\n * @create 2022-12-22 16:00\n *\/\n\n@Repository(value = \"userDaoImpl1\")\npublic class UserDaoImpl implements UserDao{\n\n    @Override\n    public void add() {\n        System.out.println(\"dao add........\");\n    }\n}<\/code><\/pre>\n\n\n\n<p>\uff083\uff09@Resource\uff1a\u53ef\u4ee5\u6839\u636e\u7c7b\u578b\u6ce8\u5165\uff0c\u53ef\u4ee5\u6839\u636e\u540d\u79f0\u6ce8\u5165<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>\/**\n * @author RichieZhang\n * @create 2022-12-22 15:25\n *\/\n\n\/\/ \u5728\u6ce8\u89e3\u91cc\u9762value\u5c5e\u6027\u503c\u53ef\u4ee5\u7701\u7565\u4e0d\u5199\n\/\/ \u9ed8\u8ba4\u503c\u662f\u7c7b\u540d\u79f0\uff0c\u9996\u5b57\u6bcd\u5c0f\u5199\n\/\/\/UserService -- userService\n\/\/@Component(value = \"userService\")   \/\/&lt;bean id=\"\" class=\"\" \/>\n\n\/\/@Service\n\/\/@Controller\n\/\/@Repository\n\n@Service\npublic class UserService {\n\n    \/\/\u5b9a\u4e49dao\u7c7b\u578b\u5c5e\u6027\n    \/\/\u4e0d\u9700\u8981\u6dfb\u52a0set\u65b9\u6cd5\n    \/\/\u6dfb\u52a0\u6ce8\u5165\u5c5e\u6027\u6ce8\u89e3\n\/\/    @Autowired  \/\/ \u6839\u636e\u7c7b\u578b\u8fdb\u884c\u6ce8\u5165\r\n\/\/    @Qualifier(value = \"userDaoImpl1\") \/\/\u6839\u636e\u540d\u79f0\u8fdb\u884c\u6ce8\u5165\r\n\/\/    private UserDao userDao;\r\n\r\n<strong>\/\/    @Resource   \/\/\u6839\u636e\u7c7b\u578b\u8fdb\u884c\u6ce8\u5165\r\n    @Resource(name = \"userDaoImpl1\") \/\/ \u6839\u636e\u540d\u79f0\u8fdb\u884c\u6ce8\u5165\r\n    private UserDao userDao;<\/strong>\n\n    public void add() {\n        System.out.println(\"service add.......\");\n        userDao.add();\n    }\n}<\/code><\/pre>\n\n\n\n<p>\uff084\uff09@Value\uff1a\u6ce8\u5165\u666e\u901a\u7c7b\u578b\u5c5e\u6027<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>\/**\n * @author RichieZhang\n * @create 2022-12-22 15:25\n *\/\n\n\/\/ \u5728\u6ce8\u89e3\u91cc\u9762value\u5c5e\u6027\u503c\u53ef\u4ee5\u7701\u7565\u4e0d\u5199\n\/\/ \u9ed8\u8ba4\u503c\u662f\u7c7b\u540d\u79f0\uff0c\u9996\u5b57\u6bcd\u5c0f\u5199\n\/\/\/UserService -- userService\n\/\/@Component(value = \"userService\")   \/\/&lt;bean id=\"\" class=\"\" \/>\n\n\/\/@Service\n\/\/@Controller\n\/\/@Repository\n\n@Service\npublic class UserService {\n\n<strong>    @Value(value = \"abc\")\n    private String name;<\/strong>\n\n    \/\/\u5b9a\u4e49dao\u7c7b\u578b\u5c5e\u6027\n    \/\/\u4e0d\u9700\u8981\u6dfb\u52a0set\u65b9\u6cd5\n    \/\/\u6dfb\u52a0\u6ce8\u5165\u5c5e\u6027\u6ce8\u89e3\n\/\/    @Autowired  \/\/ \u6839\u636e\u7c7b\u578b\u8fdb\u884c\u6ce8\u5165\n\/\/    @Qualifier(value = \"userDaoImpl1\") \/\/\u6839\u636e\u540d\u79f0\u8fdb\u884c\u6ce8\u5165\n\/\/    private UserDao userDao;\n\n\/\/    @Resource   \/\/\u6839\u636e\u7c7b\u578b\u8fdb\u884c\u6ce8\u5165\n    @Resource(name = \"userDaoImpl1\") \/\/ \u6839\u636e\u540d\u79f0\u8fdb\u884c\u6ce8\u5165\n    private UserDao userDao;\n\n\n    public void add() {\n        System.out.println(\"service add.......\" + name);\n        userDao.add();\n    }\n}<\/code><\/pre>\n\n\n\n<p>6\u3001\u5b8c\u5168\u6ce8\u89e3\u5f00\u53d1<\/p>\n\n\n\n<p>\uff081\uff09\u521b\u5efa\u914d\u7f6e\u7c7b\uff0c\u66ff\u4ee3 xml \u914d\u7f6e\u6587\u4ef6<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>\/**\r\n * @author RichieZhang\r\n * @create 2022-12-22 16:42\r\n *\/\r\n\r\n@Configuration  \/\/ \u4f5c\u4e3a\u914d\u7f6e\u7c7b\uff0c\u4ee3\u66ffxml\u914d\u7f6e\u6587\u4ef6\r\n@ComponentScan(basePackages = {\"top.qaqaq\"})\r\npublic class SpringConfig {\r\n\r\n}<\/code><\/pre>\n\n\n\n<p>\uff082\uff09\u7f16\u5199\u6d4b\u8bd5\u7c7b<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>    @Test\r\n    public void testService2() {\r\n        \/\/ \u52a0\u8f7d\u914d\u7f6e\u7c7b\r\n        ApplicationContext context = new AnnotationConfigApplicationContext(SpringConfig.class);\r\n        UserService userService = context.getBean(\"userService\", UserService.class);\r\n        System.out.println(userService);\r\n        userService.add();\r\n    }<\/code><\/pre>\n","protected":false},"excerpt":{"rendered":"<p>IOC \u64cd\u4f5c Bean \u7ba1\u7406(\u57fa\u4e8e\u6ce8\u89e3\u65b9\u5f0f) 1\u3001\u4ec0\u4e48\u662f\u6ce8\u89e3\uff081\uff09\u6ce8\u89e3\u662f\u4ee3\u7801\u7279\u6b8a\u6807\u8bb0\uff0c\u683c\u5f0f\uff1a@\u6ce8\u89e3\u540d\u79f0(\u5c5e\u6027\u540d 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