{"id":852,"date":"2025-02-26T12:35:49","date_gmt":"2025-02-26T04:35:49","guid":{"rendered":"https:\/\/www.ikaros.love\/?p=852"},"modified":"2025-02-27T03:52:48","modified_gmt":"2025-02-26T19:52:48","slug":"springboot%e4%b8%ad%e7%9a%84%e5%ae%b9%e5%99%a8%e6%b3%a8%e5%85%a5%e6%b3%a8%e9%87%8a%e8%ae%b2%e8%a7%a3","status":"publish","type":"post","link":"https:\/\/www.ikaros.love\/?p=852","title":{"rendered":"springboot\u4e2d\u6838\u5fc3Bean\u6ce8\u91ca\u8bb2\u89e3"},"content":{"rendered":"\n
\"\"<\/figure>\n\n\n\n

\u4e00\u3001\u6838\u5fc3 Bean \u6ce8\u518c\u6ce8\u89e3<\/p>\n\n\n\n

1. @Component<\/code><\/strong><\/h4>\n\n\n\n
    \n
  • \u4f5c\u7528<\/strong>\uff1a\u901a\u7528\u7684 Spring \u7ec4\u4ef6\u6ce8\u89e3\uff0c\u6807\u8bb0\u4e00\u4e2a\u7c7b\u4e3a Spring \u7ba1\u7406\u7684 Bean\u3002<\/li>\n\n\n\n
  • \u9002\u7528\u573a\u666f<\/strong>\uff1a\u6240\u6709\u9700\u8981\u88ab Spring IoC \u5bb9\u5668\u7ba1\u7406\u7684\u7c7b\uff08\u5982\u5de5\u5177\u7c7b\u3001\u901a\u7528\u7ec4\u4ef6\u7b49\uff09\u3002<\/li>\n\n\n\n
  • \u7279\u70b9<\/strong>\uff1a\u662f\u5176\u4ed6\u66f4\u5177\u4f53\u6ce8\u89e3\u7684\u7236\u6ce8\u89e3\uff08\u5982 @Service<\/code>, @Controller<\/code>, @Repository<\/code>\uff09\u3002<\/li>\n<\/ul>\n\n\n\n

    2. @Service<\/code><\/strong><\/h4>\n\n\n\n
      \n
    • \u4f5c\u7528<\/strong>\uff1a\u8bed\u4e49\u5316\u6ce8\u89e3\uff0c\u6807\u8bb0\u4e00\u4e2a\u7c7b\u4e3a\u4e1a\u52a1\u903b\u8f91\u5c42\uff08Service \u5c42\uff09\u7684 Bean\u3002<\/li>\n\n\n\n
    • \u9002\u7528\u573a\u666f<\/strong>\uff1a\u4e1a\u52a1\u903b\u8f91\u5904\u7406\u3001\u4e8b\u52a1\u7ba1\u7406\u3001\u670d\u52a1\u5c42\u7c7b\u3002<\/li>\n\n\n\n
    • \u4e0e @Component<\/code> \u7684\u5173\u7cfb<\/strong>\uff1a\u529f\u80fd\u4e0e @Component<\/code> \u5b8c\u5168\u76f8\u540c\uff0c\u4f46\u901a\u8fc7\u547d\u540d\u8868\u8fbe\u4ee3\u7801\u7684\u8bed\u4e49\u5206\u5c42\u3002<\/li>\n<\/ul>\n\n\n\n

      3. @Repository<\/code><\/strong><\/h4>\n\n\n\n
        \n
      • \u4f5c\u7528<\/strong>\uff1a\u6807\u8bb0\u4e00\u4e2a\u7c7b\u4e3a\u6570\u636e\u8bbf\u95ee\u5c42\uff08DAO \u5c42\uff09\u7684 Bean\u3002<\/li>\n\n\n\n
      • \u9002\u7528\u573a\u666f<\/strong>\uff1a\u6570\u636e\u5e93\u64cd\u4f5c\u3001\u6570\u636e\u8bbf\u95ee\u903b\u8f91\u3002<\/li>\n\n\n\n
      • \u989d\u5916\u529f\u80fd<\/strong>\uff1a\u81ea\u52a8\u5c06\u5e73\u53f0\u7279\u5b9a\u7684\u5f02\u5e38\uff08\u5982 JDBC SQLException<\/code>\uff09\u8f6c\u6362\u4e3a Spring \u7684\u7edf\u4e00\u6570\u636e\u8bbf\u95ee\u5f02\u5e38\uff08\u5982 DataAccessException<\/code>\uff09\u3002<\/li>\n<\/ul>\n\n\n\n

        4. @Controller<\/code><\/strong><\/h4>\n\n\n\n
          \n
        • \u4f5c\u7528<\/strong>\uff1a\u6807\u8bb0\u4e00\u4e2a\u7c7b\u4e3a Web \u63a7\u5236\u5c42\uff08Controller \u5c42\uff09\u7684 Bean\u3002<\/li>\n\n\n\n
        • \u9002\u7528\u573a\u666f<\/strong>\uff1a\u5904\u7406 HTTP \u8bf7\u6c42\u3001\u8fd4\u56de\u89c6\u56fe\uff08\u5982 Thymeleaf\u3001JSP\uff09\u3002<\/li>\n\n\n\n
        • \u914d\u5408\u6ce8\u89e3<\/strong>\uff1a\u901a\u5e38\u4e0e @RequestMapping<\/code>\u3001@GetMapping<\/code> \u7b49\u8bf7\u6c42\u6620\u5c04\u6ce8\u89e3\u4e00\u8d77\u4f7f\u7528\u3002<\/li>\n<\/ul>\n\n\n\n

          5. @RestController<\/code><\/strong><\/h4>\n\n\n\n
            \n
          • \u4f5c\u7528<\/strong>\uff1a\u7ec4\u5408\u6ce8\u89e3\uff0c\u7b49\u4ef7\u4e8e @Controller<\/code> + @ResponseBody<\/code>\u3002<\/li>\n\n\n\n
          • \u9002\u7528\u573a\u666f<\/strong>\uff1a\u6784\u5efa RESTful API\uff0c\u76f4\u63a5\u8fd4\u56de JSON\/XML \u6570\u636e\uff0c\u800c\u975e\u89c6\u56fe\u3002<\/li>\n\n\n\n
          • \u7279\u70b9<\/strong>\uff1aSpring 4.0 \u5f15\u5165\uff0c\u7b80\u5316 REST \u63a5\u53e3\u5f00\u53d1\u3002<\/li>\n<\/ul>\n\n\n\n

            6. @Configuration<\/code><\/strong><\/h4>\n\n\n\n
              \n
            • \u4f5c\u7528<\/strong>\uff1a\u6807\u8bb0\u4e00\u4e2a\u7c7b\u4e3a\u914d\u7f6e\u7c7b\uff0c\u5b9a\u4e49 Bean \u7684\u521b\u5efa\u548c\u4f9d\u8d56\u5173\u7cfb\u3002<\/li>\n\n\n\n
            • \u9002\u7528\u573a\u666f<\/strong>\uff1a\u66ff\u4ee3 XML \u914d\u7f6e\uff0c\u901a\u8fc7 @Bean<\/code> \u65b9\u6cd5\u663e\u5f0f\u58f0\u660e Bean\u3002<\/li>\n\n\n\n
            • \u914d\u5408\u6ce8\u89e3<\/strong>\uff1a\u901a\u5e38\u4e0e @Bean<\/code> \u4e00\u8d77\u4f7f\u7528\u3002<\/li>\n<\/ul>\n\n\n\n

              7. @Bean<\/code><\/strong><\/h4>\n\n\n\n
                \n
              • \u4f5c\u7528<\/strong>\uff1a\u5728 @Configuration<\/code> \u7c7b\u4e2d\u6807\u8bb0\u4e00\u4e2a\u65b9\u6cd5\uff0c\u65b9\u6cd5\u8fd4\u56de\u503c\u4f1a\u88ab\u6ce8\u518c\u4e3a Bean\u3002<\/li>\n\n\n\n
              • \u9002\u7528\u573a\u666f<\/strong>\uff1a\u9700\u8981\u590d\u6742\u521d\u59cb\u5316\u903b\u8f91\u7684 Bean\uff08\u5982\u7b2c\u4e09\u65b9\u5e93\u7ec4\u4ef6\uff09\u3002<\/li>\n\n\n\n
              • \u4e0e @Component<\/code> \u7684\u533a\u522b<\/strong>\uff1a@Bean<\/code> \u7528\u4e8e\u65b9\u6cd5\uff0c\u800c @Component<\/code> \u7528\u4e8e\u7c7b\u3002<\/li>\n<\/ul>\n\n\n\n
                \n\n\n\n

                \u4e8c\u3001\u5176\u4ed6\u76f8\u5173\u6ce8\u89e3<\/h3>\n\n\n\n

                1. @ComponentScan<\/code><\/strong><\/h4>\n\n\n\n
                  \n
                • \u4f5c\u7528<\/strong>\uff1a\u914d\u7f6e Spring \u626b\u63cf Bean \u7684\u5305\u8def\u5f84\u3002<\/li>\n\n\n\n
                • \u9002\u7528\u573a\u666f<\/strong>\uff1a\u81ea\u5b9a\u4e49\u7ec4\u4ef6\u626b\u63cf\u8303\u56f4\uff08\u9ed8\u8ba4\u626b\u63cf\u542f\u52a8\u7c7b\u6240\u5728\u5305\u53ca\u5176\u5b50\u5305\uff09\u3002<\/li>\n<\/ul>\n\n\n\n

                  2. @Scope<\/code><\/strong><\/h4>\n\n\n\n
                    \n
                  • \u4f5c\u7528<\/strong>\uff1a\u5b9a\u4e49 Bean \u7684\u4f5c\u7528\u57df\uff08\u5982\u5355\u4f8b singleton<\/code>\u3001\u539f\u578b prototype<\/code> \u7b49\uff09\u3002<\/li>\n\n\n\n
                  • \u9002\u7528\u573a\u666f<\/strong>\uff1a\u9700\u8981\u63a7\u5236 Bean \u751f\u547d\u5468\u671f\u65f6\u4f7f\u7528\uff08\u5982\u591a\u4f8b\u6a21\u5f0f\uff09\u3002<\/li>\n<\/ul>\n\n\n\n
                    \n\n\n\n

                    \u4e09\u3001\u5e38\u89c1\u8bef\u533a\uff1a@RequestMapping<\/code> \u7cfb\u5217<\/h3>\n\n\n\n
                      \n
                    • @RequestMapping<\/code>\u3001@GetMapping<\/code>\u3001@PostMapping<\/code> \u7b49<\/strong>
                      \u8fd9\u4e9b\u6ce8\u89e3\u7528\u4e8e\u5b9a\u4e49 HTTP \u8bf7\u6c42\u6620\u5c04\u89c4\u5219\uff0c\u4e0d\u7528\u4e8e\u6ce8\u518c Bean<\/strong>\uff0c\u9700\u4e0e @Controller<\/code> \u6216 @RestController<\/code> \u914d\u5408\u4f7f\u7528\u3002<\/li>\n<\/ul>\n\n\n\n
                      \n\n\n\n

                      \u56db\u3001\u5f02\u540c\u5bf9\u6bd4\u8868<\/h3>\n\n\n\n
                      \u6ce8\u89e3<\/th>\u5c42\u7ea7\/\u573a\u666f<\/th>\u529f\u80fd\u7279\u70b9<\/th>\u662f\u5426\u6d3e\u751f\u81ea @Component<\/code><\/th><\/tr><\/thead>
                      @Component<\/code><\/td>\u901a\u7528\u7ec4\u4ef6<\/td>\u57fa\u7840 Bean \u6ce8\u518c<\/td>\u662f<\/td><\/tr>
                      @Service<\/code><\/td>\u4e1a\u52a1\u903b\u8f91\u5c42<\/td>\u8bed\u4e49\u5316\u6807\u8bc6\u4e1a\u52a1\u670d\u52a1<\/td>\u662f<\/td><\/tr>
                      @Repository<\/code><\/td>\u6570\u636e\u8bbf\u95ee\u5c42<\/td>\u81ea\u52a8\u5f02\u5e38\u8f6c\u6362<\/td>\u662f<\/td><\/tr>
                      @Controller<\/code><\/td>Web \u63a7\u5236\u5c42<\/td>\u5904\u7406 HTTP \u8bf7\u6c42\u548c\u89c6\u56fe<\/td>\u662f<\/td><\/tr>
                      @RestController<\/code><\/td>REST \u63a7\u5236\u5c42<\/td>\u76f4\u63a5\u8fd4\u56de\u6570\u636e\uff08\u975e\u89c6\u56fe\uff09<\/td>\u662f\uff08\u7ec4\u5408\u6ce8\u89e3\uff09<\/td><\/tr>
                      @Configuration<\/code><\/td>\u914d\u7f6e\u7c7b<\/td>\u5b9a\u4e49 @Bean<\/code> \u65b9\u6cd5<\/td>\u662f<\/td><\/tr>
                      @Bean<\/code><\/td>\u65b9\u6cd5\u7ea7\u522b<\/td>\u663e\u5f0f\u58f0\u660e\u590d\u6742 Bean<\/td>\u5426<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n
                      \n\n\n\n

                      \u4e94\u3001\u4f7f\u7528\u5efa\u8bae<\/h3>\n\n\n\n
                        \n
                      1. \u4f18\u5148\u4f7f\u7528\u8bed\u4e49\u5316\u6ce8\u89e3<\/strong>\uff1a<\/li>\n<\/ol>\n\n\n\n
                          \n
                        • \u4e1a\u52a1\u5c42\u7528 @Service<\/code>\uff0c\u6570\u636e\u5c42\u7528 @Repository<\/code>\uff0c\u63a7\u5236\u5c42\u7528 @Controller<\/code> \u6216 @RestController<\/code>\u3002<\/li>\n\n\n\n
                        • \u589e\u5f3a\u4ee3\u7801\u53ef\u8bfb\u6027\uff0c\u7b26\u5408\u5206\u5c42\u67b6\u6784\u89c4\u8303\u3002<\/li>\n<\/ul>\n\n\n\n
                            \n
                          1. @Bean<\/code> \u7528\u4e8e\u590d\u6742\u573a\u666f<\/strong>\uff1a<\/li>\n<\/ol>\n\n\n\n
                              \n
                            • \u5f53\u9700\u8981\u624b\u52a8\u63a7\u5236 Bean \u7684\u521b\u5efa\u903b\u8f91\u65f6\uff08\u5982\u7b2c\u4e09\u65b9\u5e93\u7ec4\u4ef6\uff09\uff0c\u4f7f\u7528 @Configuration<\/code> + @Bean<\/code>\u3002<\/li>\n<\/ul>\n\n\n\n
                                \n
                              1. \u907f\u514d\u6df7\u6dc6<\/strong>\uff1a<\/li>\n<\/ol>\n\n\n\n
                                  \n
                                • @RequestMapping<\/code> \u7cfb\u5217\u6ce8\u89e3\u4ec5\u7528\u4e8e\u8def\u7531\u6620\u5c04\uff0c\u9700\u914d\u5408 @Controller<\/code> \u4f7f\u7528\u3002<\/li>\n<\/ul>\n\n\n\n
                                  \n\n\n\n

                                  \u901a\u8fc7\u5408\u7406\u9009\u62e9\u6ce8\u89e3\uff0c\u53ef\u4ee5\u66f4\u6e05\u6670\u5730\u8868\u8fbe\u4ee3\u7801\u610f\u56fe\uff0c\u5e76\u5229\u7528 Spring \u7684\u81ea\u52a8\u914d\u7f6e\u548c\u529f\u80fd\u589e\u5f3a\uff08\u5982\u5f02\u5e38\u8f6c\u6362\uff09\u3002<\/p>\n\n\n\n

                                  \u8def\u7531\u6620\u5c04\u7c7b\u6ce8\u89e3\u8be6\u89e3<\/mark><\/p>\n\n\n\n

                                  \u5728 Spring Boot \u4e2d\uff0c@RequestMapping<\/code> \u7cfb\u5217\u6ce8\u89e3\u662f\u7528\u4e8e\u5b9a\u4e49 HTTP \u8bf7\u6c42\u6620\u5c04\u89c4\u5219<\/strong>\u7684\u6ce8\u89e3\uff0c\u5b83\u4eec\u4e0e Bean \u6ce8\u518c\u65e0\u5173\uff0c\u4f46\u5e38\u88ab\u8bef\u8ba4\u4e3a\u662f Bean \u6ce8\u518c\u7684\u4e00\u90e8\u5206\u3002\u4ee5\u4e0b\u662f\u8be6\u7ec6\u89e3\u6790\uff1a<\/p>\n\n\n\n

                                  \n\n\n\n

                                  \u4e00\u3001@RequestMapping<\/code> \u7cfb\u5217\u6ce8\u89e3\u7684\u4f5c\u7528<\/strong><\/h3>\n\n\n\n

                                  \u8fd9\u4e9b\u6ce8\u89e3\u7528\u4e8e\u5c06 HTTP \u8bf7\u6c42<\/strong>\uff08\u5982 GET\u3001POST \u7b49\uff09\u6620\u5c04\u5230\u5177\u4f53\u7684 \u63a7\u5236\u5668\u65b9\u6cd5<\/strong> \u4e0a\uff0c\u4ece\u800c\u5904\u7406\u8bf7\u6c42\u5e76\u8fd4\u56de\u54cd\u5e94\u3002\u5b83\u4eec\u7684\u6838\u5fc3\u529f\u80fd\u662f\u8def\u7531\uff0c\u800c\u975e\u6ce8\u518c Bean\u3002<\/p>\n\n\n\n

                                  1. @RequestMapping<\/code><\/strong><\/h4>\n\n\n\n
                                    \n
                                  • \u529f\u80fd<\/strong>\uff1a\u6700\u57fa\u7840\u7684\u8bf7\u6c42\u6620\u5c04\u6ce8\u89e3\uff0c\u652f\u6301\u5b9a\u4e49 URL \u8def\u5f84<\/strong>\u548c HTTP \u65b9\u6cd5<\/strong>\uff08\u5982 GET\u3001POST\uff09\u3002<\/li>\n\n\n\n
                                  • \u793a\u4f8b<\/strong>\uff1a<\/li>\n<\/ul>\n\n\n\n
                                      @RequestMapping(value = \"\/example\", method = RequestMethod.GET)\n  public String example() {\n      return \"Hello\";\n  }<\/code><\/pre>\n\n\n\n
                                      \n
                                    • \u7279\u70b9<\/strong>\uff1a<\/li>\n\n\n\n
                                    • \u9700\u8981\u624b\u52a8\u6307\u5b9a HTTP \u65b9\u6cd5\uff08\u5982 method = RequestMethod.GET<\/code>\uff09\u3002<\/li>\n\n\n\n
                                    • \u53ef\u4f5c\u7528\u4e8e\u7c7b\u6216\u65b9\u6cd5\u7ea7\u522b\uff1a\n
                                        \n
                                      • \u7c7b\u7ea7\u522b<\/strong>\uff1a\u5b9a\u4e49\u516c\u5171\u8def\u5f84\u524d\u7f00\uff08\u5982 \/api<\/code>\uff09\u3002<\/li>\n\n\n\n
                                      • \u65b9\u6cd5\u7ea7\u522b<\/strong>\uff1a\u5b9a\u4e49\u5177\u4f53\u8def\u5f84\u548c HTTP \u65b9\u6cd5\u3002<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n\n\n\n
                                        2. @GetMapping<\/code><\/strong><\/h4>\n\n\n\n
                                          \n
                                        • \u529f\u80fd<\/strong>\uff1a\u7b49\u4ef7\u4e8e @RequestMapping(method = RequestMethod.GET)<\/code>\uff0c\u7b80\u5316 GET \u8bf7\u6c42\u6620\u5c04\u3002<\/li>\n\n\n\n
                                        • \u793a\u4f8b<\/strong>\uff1a<\/li>\n<\/ul>\n\n\n\n
                                            @GetMapping(\"\/example\")\n  public String example() {\n      return \"Hello\";\n  }<\/code><\/pre>\n\n\n\n
                                          3. @PostMapping<\/code>\u3001@PutMapping<\/code>\u3001@DeleteMapping<\/code>\u3001@PatchMapping<\/code><\/strong><\/h4>\n\n\n\n
                                            \n
                                          • \u529f\u80fd<\/strong>\uff1a\u5206\u522b\u5bf9\u5e94 HTTP \u7684 POST\u3001PUT\u3001DELETE\u3001PATCH \u65b9\u6cd5\uff0c\u7b80\u5316\u7279\u5b9a\u65b9\u6cd5\u7684\u6620\u5c04\u3002<\/li>\n\n\n\n
                                          • \u793a\u4f8b<\/strong>\uff1a<\/li>\n<\/ul>\n\n\n\n
                                              @PostMapping(\"\/create\")\n  public String create() {\n      return \"Created\";\n  }<\/code><\/pre>\n\n\n\n
                                            4. @RestController<\/code> \u4e0e @Controller<\/code><\/strong><\/h4>\n\n\n\n
                                              \n
                                            • @Controller<\/code><\/strong>\uff1a<\/li>\n\n\n\n
                                            • \u6807\u8bb0\u4e00\u4e2a\u7c7b\u4e3a\u63a7\u5236\u5668\uff0c\u5904\u7406 HTTP \u8bf7\u6c42\u3002<\/li>\n\n\n\n
                                            • \u8fd4\u56de\u7684\u5b57\u7b26\u4e32\u901a\u5e38\u5bf9\u5e94\u89c6\u56fe\u540d\u79f0\uff08\u5982 JSP\u3001Thymeleaf\uff09\u3002<\/li>\n\n\n\n
                                            • @RestController<\/code><\/strong>\uff1a<\/li>\n\n\n\n
                                            • \u7ec4\u5408\u6ce8\u89e3\uff1a@Controller<\/code> + @ResponseBody<\/code>\u3002<\/li>\n\n\n\n
                                            • \u76f4\u63a5\u8fd4\u56de\u6570\u636e\uff08\u5982 JSON\/XML\uff09\uff0c\u800c\u975e\u89c6\u56fe\u3002<\/li>\n\n\n\n
                                            • \u793a\u4f8b<\/strong>\uff1a
                                              java @RestController public class ApiController { @GetMapping(\"\/data\") public Data getData() { return new Data(\"value\"); } }<\/code><\/li>\n<\/ul>\n\n\n\n
                                              \n\n\n\n
                                              \u4e8c\u3001\u5e38\u89c1\u8bef\u533a<\/strong><\/h3>\n\n\n\n
                                              1. \u8bef\u8ba4\u4e3a @RequestMapping<\/code> \u7cfb\u5217\u6ce8\u89e3\u4f1a\u6ce8\u518c Bean<\/strong><\/h4>\n\n\n\n
                                                \n
                                              • \u95ee\u9898<\/strong>\uff1a\u5355\u72ec\u4f7f\u7528 @RequestMapping<\/code> \u6216 @GetMapping<\/code> \u7b49\u6ce8\u89e3\u4e0d\u4f1a\u5c06\u7c7b\u6ce8\u518c\u4e3a Bean\u3002<\/li>\n\n\n\n
                                              • \u6b63\u786e\u505a\u6cd5<\/strong>\uff1a<\/li>\n\n\n\n
                                              • \u5fc5\u987b\u7ed3\u5408 @Controller<\/code> \u6216 @RestController<\/code> \u4f7f\u7528\uff0c\u8fd9\u4e9b\u6ce8\u89e3\u624d\u662f\u771f\u6b63\u7684 Bean \u6ce8\u518c\u6ce8\u89e3\u3002<\/li>\n\n\n\n
                                              • \u9519\u8bef\u793a\u4f8b<\/strong>\uff1a
                                                java \/\/ \u7f3a\u5c11 @Controller\/@RestController\uff0c\u6b64\u7c7b\u4e0d\u4f1a\u88ab Spring \u7ba1\u7406 public class MyController { @GetMapping(\"\/test\") public String test() { return \"Fail\"; } }<\/code><\/li>\n<\/ul>\n\n\n\n
                                                2. \u6df7\u6dc6 @RestController<\/code> \u548c @Controller<\/code><\/strong><\/h4>\n\n\n\n
                                                  \n
                                                • \u95ee\u9898<\/strong>\uff1a<\/li>\n\n\n\n
                                                • \u5728 @Controller<\/code> \u7c7b\u4e2d\u76f4\u63a5\u8fd4\u56de\u6570\u636e\uff08\u5982\u5b57\u7b26\u4e32\u6216\u5bf9\u8c61\uff09\uff0c\u672a\u6dfb\u52a0 @ResponseBody<\/code>\uff0c\u5bfc\u81f4 Spring \u5c1d\u8bd5\u67e5\u627e\u89c6\u56fe\u3002<\/li>\n\n\n\n
                                                • \u793a\u4f8b<\/strong>\uff1a<\/li>\n<\/ul>\n\n\n\n
                                                    @Controller\n  public class MyController {\n      @GetMapping(\"\/data\")\n      public Data getData() {\n          return new Data(\"value\"); \/\/ \u4f1a\u62a5\u9519\uff1a\u627e\u4e0d\u5230\u89c6\u56fe\u6a21\u677f\n      }\n  }<\/code><\/pre>\n\n\n\n
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                                                  • \u89e3\u51b3\u65b9\u6848<\/strong>\uff1a<\/li>\n\n\n\n
                                                  • \u4f7f\u7528 @RestController<\/code> \u66ff\u4ee3 @Controller<\/code>\uff0c\u6216\u4e3a\u65b9\u6cd5\u6dfb\u52a0 @ResponseBody<\/code>\u3002<\/li>\n<\/ul>\n\n\n\n
                                                    3. \u8def\u5f84\u51b2\u7a81\u6216\u6a21\u7cca\u5339\u914d<\/strong><\/h4>\n\n\n\n
                                                      \n
                                                    • \u95ee\u9898<\/strong>\uff1a<\/li>\n\n\n\n
                                                    • \u4e0d\u540c\u65b9\u6cd5\u7684 URL \u8def\u5f84\u8bbe\u8ba1\u51b2\u7a81\uff0c\u5bfc\u81f4\u8bf7\u6c42\u88ab\u9519\u8bef\u8def\u7531\u3002<\/li>\n\n\n\n
                                                    • \u793a\u4f8b<\/strong>\uff1a<\/li>\n<\/ul>\n\n\n\n
                                                        @GetMapping(\"\/user\/{id}\")\n  public String getUserById(@PathVariable String id) { \/* ... *\/ }\n\n  @GetMapping(\"\/user\/name\")\n  public String getUserByName() { \/* ... *\/ }<\/code><\/pre>\n\n\n\n
                                                        \n
                                                      • \u5f53\u8bf7\u6c42 \/user\/name<\/code> \u65f6\uff0c\u53ef\u80fd\u88ab\u7b2c\u4e00\u4e2a\u65b9\u6cd5\u8bef\u5339\u914d\u4e3a id=name<\/code>\u3002<\/li>\n\n\n\n
                                                      • \u89e3\u51b3\u65b9\u6848<\/strong>\uff1a<\/li>\n\n\n\n
                                                      • \u8c03\u6574\u8def\u5f84\u8bbe\u8ba1\uff0c\u907f\u514d\u6a21\u7cca\u5339\u914d\uff08\u5982 \/user\/id\/{id}<\/code> \u548c \/user\/name<\/code>\uff09\u3002<\/li>\n<\/ul>\n\n\n\n
                                                        \n\n\n\n
                                                        \u4e09\u3001\u4e0e\u5176\u4ed6\u6ce8\u89e3\u7684\u5173\u7cfb<\/strong><\/h3>\n\n\n\n
                                                        1. @ResponseBody<\/code><\/strong><\/h4>\n\n\n\n
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                                                        • \u529f\u80fd<\/strong>\uff1a\u5c06\u65b9\u6cd5\u8fd4\u56de\u503c\u76f4\u63a5\u5199\u5165 HTTP \u54cd\u5e94\u4f53\uff08\u800c\u975e\u89c6\u56fe\uff09\u3002<\/li>\n\n\n\n
                                                        • \u4f7f\u7528\u573a\u666f<\/strong>\uff1a<\/li>\n\n\n\n
                                                        • \u4e0e @Controller<\/code> \u914d\u5408\u5b9e\u73b0 REST API\u3002<\/li>\n\n\n\n
                                                        • \u88ab @RestController<\/code> \u9690\u5f0f\u5305\u542b\u3002<\/li>\n<\/ul>\n\n\n\n
                                                          2. @PathVariable<\/code> \u548c @RequestParam<\/code><\/strong><\/h4>\n\n\n\n
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                                                          • \u4f5c\u7528<\/strong>\uff1a\u5904\u7406\u8bf7\u6c42\u4e2d\u7684\u52a8\u6001\u53c2\u6570\u3002<\/li>\n\n\n\n
                                                          • \u793a\u4f8b<\/strong>\uff1a<\/li>\n<\/ul>\n\n\n\n
                                                              @GetMapping(\"\/user\/{id}\")\n  public String getUser(@PathVariable String id, @RequestParam String name) {\n      return \"ID: \" + id + \", Name: \" + name;\n  }<\/code><\/pre>\n\n\n\n
                                                            \n\n\n\n
                                                            \u56db\u3001\u4f7f\u7528\u5efa\u8bae<\/strong><\/h3>\n\n\n\n
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                                                            1. \u4f18\u5148\u4f7f\u7528\u7279\u5b9a HTTP \u65b9\u6cd5\u6ce8\u89e3<\/strong>\uff1a<\/li>\n<\/ol>\n\n\n\n
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                                                              • \u7528 @GetMapping<\/code> \u66ff\u4ee3 @RequestMapping(method = GET)<\/code>\uff0c\u63d0\u5347\u4ee3\u7801\u53ef\u8bfb\u6027\u3002<\/li>\n<\/ul>\n\n\n\n
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                                                                1. \u660e\u786e\u8def\u5f84\u8bbe\u8ba1<\/strong>\uff1a<\/li>\n<\/ol>\n\n\n\n
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                                                                  • \u907f\u514d\u8def\u5f84\u51b2\u7a81\uff0c\u5408\u7406\u4f7f\u7528\u8def\u5f84\u53d8\u91cf\uff08{variable}<\/code>\uff09\u548c\u67e5\u8be2\u53c2\u6570\u3002<\/li>\n<\/ul>\n\n\n\n
                                                                      \n
                                                                    1. \u7ec4\u5408\u4f7f\u7528\u6ce8\u89e3<\/strong>\uff1a<\/li>\n<\/ol>\n\n\n\n
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                                                                      • \u5728\u7c7b\u7ea7\u522b\u7528 @RequestMapping<\/code> \u5b9a\u4e49\u516c\u5171\u8def\u5f84\u524d\u7f00\uff0c\u65b9\u6cd5\u7ea7\u522b\u7528 @GetMapping<\/code> \u7b49\u5b9a\u4e49\u5177\u4f53\u64cd\u4f5c\u3002<\/li>\n<\/ul>\n\n\n\n
                                                                           @RestController\n   @RequestMapping(\"\/api\/v1\")\n   public class ApiController {\n       @GetMapping(\"\/users\")\n       public List<User> getUsers() { \/* ... *\/ }\n   }<\/code><\/pre>\n\n\n\n
                                                                        \n\n\n\n
                                                                        \u4e94\u3001\u603b\u7ed3<\/strong><\/h3>\n\n\n\n
                                                                          \n
                                                                        • @RequestMapping<\/code> \u7cfb\u5217\u6ce8\u89e3\u7528\u4e8e\u8def\u7531\uff0c\u800c\u975e\u6ce8\u518c Bean<\/strong>\u3002<\/li>\n\n\n\n
                                                                        • \u5fc5\u987b\u4e0e @Controller<\/code> \u6216 @RestController<\/code> \u914d\u5408\u4f7f\u7528<\/strong>\uff0c\u5426\u5219\u65e0\u6cd5\u5904\u7406\u8bf7\u6c42\u3002<\/li>\n\n\n\n
                                                                        • \u5408\u7406\u9009\u62e9\u6ce8\u89e3\uff08\u5982 @GetMapping<\/code> vs @PostMapping<\/code>\uff09\uff0c\u53ef\u63d0\u5347\u4ee3\u7801\u6e05\u6670\u5ea6\u548c\u7ef4\u62a4\u6027\u3002<\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"
                                                                          \u4e00\u3001\u6838\u5fc3 Bean \u6ce8\u518c\u6ce8\u89e3 1...<\/p>\n","protected":false},"author":1,"featured_media":853,"comment_status":"open","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[5],"tags":[217,228],"_links":{"self":[{"href":"https:\/\/www.ikaros.love\/index.php?rest_route=\/wp\/v2\/posts\/852"}],"collection":[{"href":"https:\/\/www.ikaros.love\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.ikaros.love\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.ikaros.love\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.ikaros.love\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=852"}],"version-history":[{"count":3,"href":"https:\/\/www.ikaros.love\/index.php?rest_route=\/wp\/v2\/posts\/852\/revisions"}],"predecessor-version":[{"id":856,"href":"https:\/\/www.ikaros.love\/index.php?rest_route=\/wp\/v2\/posts\/852\/revisions\/856"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.ikaros.love\/index.php?rest_route=\/wp\/v2\/media\/853"}],"wp:attachment":[{"href":"https:\/\/www.ikaros.love\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=852"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.ikaros.love\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=852"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.ikaros.love\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=852"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}