{"id":1644,"date":"2025-08-28T17:04:51","date_gmt":"2025-08-28T09:04:51","guid":{"rendered":"https:\/\/zero-zl.cn\/?p=1644"},"modified":"2025-08-28T17:09:57","modified_gmt":"2025-08-28T09:09:57","slug":"spring%e6%b3%a8%e8%a7%a3%ef%bc%88%e8%b6%85%e7%ba%a7%e5%b0%8f%e7%99%bd%ef%bc%89","status":"publish","type":"post","link":"https:\/\/zero-zl.cn\/index.php\/2025\/08\/28\/spring%e6%b3%a8%e8%a7%a3%ef%bc%88%e8%b6%85%e7%ba%a7%e5%b0%8f%e7%99%bd%ef%bc%89\/","title":{"rendered":"Spring Boot \u6ce8\u89e3\u5b8c\u6574\u624b\u518c\uff08\u8d85\u8d85\u8d85\u8d85\u8d85\u7ea7\u5c0f\u767d\u7248\uff09"},"content":{"rendered":"\n
\n

\u7ed3\u6784\uff1a
\u2460 \u542f\u52a8\u7c7b & \u914d\u7f6e\u76f8\u5173
\u2461 Bean \u7ba1\u7406 & \u4f9d\u8d56\u6ce8\u5165
\u2462 Web \u5c42\uff08Controller \u8bf7\u6c42\u76f8\u5173\uff09
\u2463 Service & DAO \u5c42
\u2464 \u6570\u636e\u5e93 & \u4e8b\u52a1
\u2465 \u914d\u7f6e\u6587\u4ef6 & \u5e38\u7528\u5de5\u5177
\u2466 Lombok \u8f85\u52a9\u6ce8\u89e3<\/p>\n<\/blockquote>\n\n\n\n

\n\n\n\n

\u2460 \u542f\u52a8\u7c7b & \u914d\u7f6e\u76f8\u5173<\/h2>\n\n\n\n

1. @SpringBootApplication<\/code><\/h3>\n\n\n\n
    \n
  • \u6bd4\u55bb<\/strong>\uff1a\u5927\u95e8\u53e3\u7684 \u201c\u603b\u5f00\u5173\u201d\uff0c\u544a\u8bc9 Spring Boot \u4ece\u8fd9\u91cc\u542f\u52a8\u3002<\/li>\n\n\n\n
  • \u4f5c\u7528<\/strong>\uff1a\u6807\u8bb0\u542f\u52a8\u7c7b\uff0c\u542f\u52a8\u65f6\u4f1a\uff1a\n
      \n
    • \u628a\u5f53\u524d\u7c7b\u4f5c\u4e3a\u914d\u7f6e\u7c7b\uff08@Configuration<\/code>\uff09\u3002<\/li>\n\n\n\n
    • \u5f00\u542f\u81ea\u52a8\u914d\u7f6e\uff08@EnableAutoConfiguration<\/code>\uff09\u3002<\/li>\n\n\n\n
    • \u81ea\u52a8\u626b\u63cf\u540c\u5305\u4e0b\u7684 Bean\uff08@ComponentScan<\/code>\uff09\u3002<\/li>\n<\/ul>\n<\/li>\n\n\n\n
    • \u4ee3\u7801<\/strong>\uff1a<\/li>\n<\/ul>\n\n\n\n
       <\/code><\/pre>\n\n\n\n
      @SpringBootApplicationpublic class DemoApplication {    public static void main(String[] args) {        SpringApplication.run(DemoApplication.class, args);    }}<\/code><\/pre>\n\n\n\n
      \n\n\n\n
      2. @Configuration<\/code><\/h3>\n\n\n\n
        \n
      • \u6bd4\u55bb<\/strong>\uff1a\u4eba\u4e8b\u90e8\u6587\u4ef6\u5939\uff0c\u91cc\u9762\u5199\u7740 \u201c\u516c\u53f8\u8981\u62db\u8058\u4ec0\u4e48\u5458\u5de5\u201d\u3002<\/li>\n\n\n\n
      • \u4f5c\u7528<\/strong>\uff1a\u5b9a\u4e49\u914d\u7f6e\u7c7b\uff0c\u53ef\u4ee5\u5199 @Bean<\/code> \u65b9\u6cd5\u3002<\/li>\n\n\n\n
      • \u4ee3\u7801<\/strong>\uff1a<\/li>\n<\/ul>\n\n\n\n
        @Configurationpublic class AppConfig {    @Bean    public PasswordEncoder passwordEncoder() {        return new BCryptPasswordEncoder();    }}<\/code><\/pre>\n\n\n\n
        \n\n\n\n
        3. @Bean<\/code><\/h3>\n\n\n\n
          \n
        • \u6bd4\u55bb<\/strong>\uff1a\u62db\u8058\u542f\u4e8b \u2192 \u62db\u4e00\u4e2a\u5bf9\u8c61\u4ea4\u7ed9 Spring \u7ba1\u7406\u3002<\/li>\n\n\n\n
        • \u4f5c\u7528<\/strong>\uff1a\u65b9\u6cd5\u8fd4\u56de\u503c\u4f1a\u4ea4\u7ed9 Spring \u5bb9\u5668\uff0c\u6210\u4e3a Bean\u3002<\/li>\n\n\n\n
        • \u4ee3\u7801<\/strong>\uff1a<\/li>\n<\/ul>\n\n\n\n
          @Beanpublic Tool tool() {    return new Tool(\"\u87ba\u4e1d\u5200\");}<\/code><\/pre>\n\n\n\n
          \n\n\n\n
          4. @ComponentScan<\/code><\/h3>\n\n\n\n
            \n
          • \u6bd4\u55bb<\/strong>\uff1a\u626b\u5730\u673a\u5668\u4eba \u2192 \u81ea\u52a8\u626b\u63cf\u67d0\u4e2a\u5305\u4e0b\u7684\u5458\u5de5\u3002<\/li>\n\n\n\n
          • \u4f5c\u7528<\/strong>\uff1a\u544a\u8bc9 Spring \u53bb\u54ea\u91cc\u627e\u5e26\u6ce8\u89e3\u7684\u7c7b\u3002<\/li>\n\n\n\n
          • \u4ee3\u7801<\/strong>\uff1a<\/li>\n<\/ul>\n\n\n\n
            @SpringBootApplication(scanBasePackages = \"com.example.demo\")<\/code><\/pre>\n\n\n\n
            \n\n\n\n
            \u2461 Bean \u7ba1\u7406 & \u4f9d\u8d56\u6ce8\u5165<\/h2>\n\n\n\n
            5. @Component<\/code><\/h3>\n\n\n\n
              \n
            • \u6bd4\u55bb<\/strong>\uff1a\u7ed9\u4e00\u4e2a\u7c7b\u8d34\u5de5\u724c\uff0cSpring \u542f\u52a8\u65f6\u4f1a\u62db\u8fdb\u53bb\u3002<\/li>\n\n\n\n
            • \u4f5c\u7528<\/strong>\uff1a\u6700\u57fa\u672c\u7684 Bean \u6ce8\u89e3\u3002<\/li>\n\n\n\n
            • \u4ee3\u7801<\/strong>\uff1a<\/li>\n<\/ul>\n\n\n\n
              @Componentpublic class Tool {    public String getName() {        return \"\u6273\u624b\";    }}<\/code><\/pre>\n\n\n\n
              \n\n\n\n
              6. @Service<\/code><\/h3>\n\n\n\n
                \n
              • \u6bd4\u55bb<\/strong>\uff1a\u7ecf\u7406\uff0c\u8d1f\u8d23\u4e1a\u52a1\u903b\u8f91\u3002<\/li>\n\n\n\n
              • \u4f5c\u7528<\/strong>\uff1a\u4e1a\u52a1\u5c42\u7c7b\u3002\u5176\u5b9e\u5c31\u662f @Component<\/code> \u7684\u53d8\u79cd\u3002<\/li>\n\n\n\n
              • \u4ee3\u7801<\/strong>\uff1a<\/li>\n<\/ul>\n\n\n\n
                @Servicepublic class UserService {    public String getName() { return \"\u5c0f\u660e\"; }}<\/code><\/pre>\n\n\n\n
                \n\n\n\n
                7. @Repository<\/code><\/h3>\n\n\n\n
                  \n
                • \u6bd4\u55bb<\/strong>\uff1a\u4ed3\u5e93\u7ba1\u7406\u5458\uff0c\u8d1f\u8d23\u6570\u636e\u5e93\u64cd\u4f5c\u3002<\/li>\n\n\n\n
                • \u4f5c\u7528<\/strong>\uff1aDAO \u5c42\u7c7b\u3002<\/li>\n\n\n\n
                • \u4ee3\u7801<\/strong>\uff1a<\/li>\n<\/ul>\n\n\n\n
                  @Repositorypublic interface UserRepository extends JpaRepository<User, Long> {}<\/code><\/pre>\n\n\n\n
                  \n\n\n\n
                  8. @Controller<\/code> & @RestController<\/code><\/h3>\n\n\n\n
                    \n
                  • \u6bd4\u55bb<\/strong>\uff1a\u524d\u53f0\u63a5\u5f85\u5458\uff0c\u8d1f\u8d23\u63a5\u5f85\u5ba2\u6237\u3002<\/li>\n\n\n\n
                  • \u4f5c\u7528<\/strong>\uff1a\n
                      \n
                    • @Controller<\/code> \u2192 \u8fd4\u56de\u9875\u9762\uff08HTML\uff09\u3002<\/li>\n\n\n\n
                    • @RestController<\/code> \u2192 \u8fd4\u56de JSON\uff08\u5e38\u7528\u4e8e\u63a5\u53e3\u5f00\u53d1\uff09\u3002<\/li>\n<\/ul>\n<\/li>\n\n\n\n
                    • \u4ee3\u7801<\/strong>\uff1a<\/li>\n<\/ul>\n\n\n\n
                      @RestController@RequestMapping(\"\/user\")public class UserController {    @GetMapping(\"\/{id}\")    public String getUser(@PathVariable int id) {        return \"\u7528\u6237ID\uff1a\" + id;    }}<\/code><\/pre>\n\n\n\n
                      \n\n\n\n
                      9. @Autowired<\/code><\/h3>\n\n\n\n
                        \n
                      • \u6bd4\u55bb<\/strong>\uff1a\u516c\u53f8\u91cc\u81ea\u52a8\u5206\u914d \u2192 \u4e0d\u7528\u81ea\u5df1 new<\/code>\u3002<\/li>\n\n\n\n
                      • \u4f5c\u7528<\/strong>\uff1a\u81ea\u52a8\u6ce8\u5165 Bean\u3002<\/li>\n\n\n\n
                      • \u4ee3\u7801<\/strong>\uff1a<\/li>\n<\/ul>\n\n\n\n
                        @Servicepublic class WorkService {    @Autowired    private Tool tool;     public void doWork() {        System.out.println(\"\u4f7f\u7528\u5de5\u5177\uff1a\" + tool.getName());    }}<\/code><\/pre>\n\n\n\n
                        \n\n\n\n
                        10. @Qualifier<\/code><\/h3>\n\n\n\n
                          \n
                        • \u6bd4\u55bb<\/strong>\uff1a\u5982\u679c\u6709\u4e24\u4e2a\u540c\u5c97\u4f4d\u7684\u4eba \u2192 \u6307\u5b9a\u8981\u54ea\u4e00\u4e2a\u3002<\/li>\n\n\n\n
                        • \u4ee3\u7801<\/strong>\uff1a<\/li>\n<\/ul>\n\n\n\n
                          @Autowired@Qualifier(\"tool2\")private Tool tool;<\/code><\/pre>\n\n\n\n
                          \n\n\n\n
                          11. @Primary<\/code><\/h3>\n\n\n\n
                            \n
                          • \u6bd4\u55bb<\/strong>\uff1a\u9ed8\u8ba4\u4f18\u5148\u9009\u4e2d\u67d0\u4e2a\u5458\u5de5\u3002<\/li>\n\n\n\n
                          • \u4ee3\u7801<\/strong>\uff1a<\/li>\n<\/ul>\n\n\n\n
                            @Component@Primarypublic class Tool1 implements Tool {}<\/code><\/pre>\n\n\n\n
                            \n\n\n\n
                            \u2462 Web \u5c42\uff08\u8bf7\u6c42\u6620\u5c04\u76f8\u5173\uff09<\/h2>\n\n\n\n
                            12. @RequestMapping<\/code><\/h3>\n\n\n\n
                              \n
                            • \u6bd4\u55bb<\/strong>\uff1a\u524d\u53f0\u5c0f\u59d0\u59d0 \u2192 \u5b9a\u4e49\u63a5\u53e3\u5165\u53e3\u3002<\/li>\n\n\n\n
                            • \u4ee3\u7801<\/strong>\uff1a<\/li>\n<\/ul>\n\n\n\n
                              @RequestMapping(\"\/hello\")public String hello() { return \"hi\"; }<\/code><\/pre>\n\n\n\n
                              \n\n\n\n
                              13. @GetMapping<\/code> \/ @PostMapping<\/code> \/ @PutMapping<\/code> \/ @DeleteMapping<\/code><\/h3>\n\n\n\n
                                \n
                              • \u6bd4\u55bb<\/strong>\uff1a\u4e0d\u540c\u7684\u95e8 \u2192 GET\/POST\/PUT\/DELETE \u8bf7\u6c42\u65b9\u5f0f\u3002<\/li>\n\n\n\n
                              • \u4ee3\u7801<\/strong>\uff1a<\/li>\n<\/ul>\n\n\n\n
                                @GetMapping(\"\/{id}\")public String getUser(@PathVariable Long id) { ... } @PostMapping(\"\/add\")public String addUser(@RequestBody User user) { ... }<\/code><\/pre>\n\n\n\n
                                \n\n\n\n
                                14. @PathVariable<\/code><\/h3>\n\n\n\n
                                  \n
                                • \u6bd4\u55bb<\/strong>\uff1a\u4ece URL \u8def\u5f84\u91cc\u53d6\u53c2\u6570\u3002<\/li>\n\n\n\n
                                • \u4ee3\u7801<\/strong>\uff1a<\/li>\n\n\n\n
                                • \/user\/1<\/code> \u2192 id=1<\/li>\n<\/ul>\n\n\n\n
                                  @GetMapping(\"\/user\/{id}\")public String getUser(@PathVariable int id) { ... }<\/code><\/pre>\n\n\n\n
                                  \n\n\n\n
                                  15. @RequestParam<\/code><\/h3>\n\n\n\n
                                    \n
                                  • \u6bd4\u55bb<\/strong>\uff1a\u4ece URL \u53c2\u6570\u91cc\u53d6\u6570\u636e\u3002<\/li>\n\n\n\n
                                  • \u4ee3\u7801<\/strong>\uff1a
                                    \/user\/search?name=\u5c0f\u660e<\/code><\/li>\n<\/ul>\n\n\n\n
                                    @GetMapping(\"\/search\")public String search(@RequestParam String name) { ... }<\/code><\/pre>\n\n\n\n
                                    \n\n\n\n
                                    16. @RequestBody<\/code><\/h3>\n\n\n\n
                                      \n
                                    • \u6bd4\u55bb<\/strong>\uff1a\u4ece\u8bf7\u6c42\u4f53\uff08JSON\uff09\u91cc\u53d6\u6570\u636e\u3002<\/li>\n\n\n\n
                                    • \u4ee3\u7801<\/strong>\uff1a<\/li>\n<\/ul>\n\n\n\n
                                      @PostMapping(\"\/add\")public String addUser(@RequestBody User user) { ... }<\/code><\/pre>\n\n\n\n
                                      \n\n\n\n
                                      \u2463 Service & DAO \u5c42<\/h2>\n\n\n\n
                                      17. @Transactional<\/code><\/h3>\n\n\n\n
                                        \n
                                      • \u6bd4\u55bb<\/strong>\uff1a\u94f6\u884c\u8f6c\u8d26 \u2192 \u8981\u4e48\u4e24\u8fb9\u90fd\u6210\u529f\uff0c\u8981\u4e48\u90fd\u5931\u8d25\u3002<\/li>\n\n\n\n
                                      • \u4ee3\u7801<\/strong>\uff1a<\/li>\n<\/ul>\n\n\n\n
                                        @Transactionalpublic void transfer(Long fromId, Long toId, double money) {    accountMapper.decrease(fromId, money);    accountMapper.increase(toId, money);}<\/code><\/pre>\n\n\n\n
                                        \n\n\n\n
                                        18. @Mapper<\/code><\/h3>\n\n\n\n
                                          \n
                                        • \u6bd4\u55bb<\/strong>\uff1a\u544a\u8bc9 MyBatis\uff1a\u8fd9\u662f SQL \u63a5\u53e3\u3002<\/li>\n\n\n\n
                                        • \u4ee3\u7801<\/strong>\uff1a<\/li>\n<\/ul>\n\n\n\n
                                          @Mapperpublic interface UserMapper {    @Select(\"SELECT * FROM user WHERE id = #{id}\")    User selectById(Long id);}<\/code><\/pre>\n\n\n\n
                                          \n\n\n\n
                                          \u2464 \u914d\u7f6e\u6587\u4ef6\u76f8\u5173<\/h2>\n\n\n\n
                                          19. @Value<\/code><\/h3>\n\n\n\n
                                            \n
                                          • \u6bd4\u55bb<\/strong>\uff1a\u70b9\u83dc\u5355 \u2192 \u4ece\u914d\u7f6e\u6587\u4ef6\u62ff\u6570\u636e\u3002<\/li>\n\n\n\n
                                          • \u4ee3\u7801<\/strong>\uff1a
                                            application.yml: app: name: demo<\/code> \u4f7f\u7528\uff1a<\/li>\n<\/ul>\n\n\n\n
                                            @Value(\"${app.name}\")private String appName;<\/code><\/pre>\n\n\n\n
                                            \n\n\n\n
                                            20. @ConfigurationProperties<\/code><\/h3>\n\n\n\n
                                              \n
                                            • \u6bd4\u55bb<\/strong>\uff1a\u4e00\u6574\u4e2a\u914d\u7f6e\u5957\u9910 \u2192 \u81ea\u52a8\u88c5\u914d\u6210\u5bf9\u8c61\u3002<\/li>\n\n\n\n
                                            • \u4ee3\u7801<\/strong>\uff1a
                                              application.yml: app: name: demo version: 1.0<\/code><\/li>\n<\/ul>\n\n\n\n
                                              @Component@ConfigurationProperties(prefix = \"app\")@Datapublic class AppConfig {    private String name;    private String version;}<\/code><\/pre>\n\n\n\n
                                              \n\n\n\n
                                              \u2465 \u65e5\u5fd7 & Lombok \u8f85\u52a9<\/h2>\n\n\n\n
                                              21. @Slf4j<\/code><\/h3>\n\n\n\n
                                                \n
                                              • \u6bd4\u55bb<\/strong>\uff1a\u81ea\u52a8\u7ed9\u4f60\u4e00\u4e2a\u5c0f\u672c\u5b50\uff0c\u53ef\u4ee5\u968f\u65f6\u5199\u65e5\u5fd7\u3002<\/li>\n\n\n\n
                                              • \u4ee3\u7801<\/strong>\uff1a<\/li>\n<\/ul>\n\n\n\n
                                                @Slf4j
                                                @RestController
                                                public class TestController {
                                                @GetMapping(\u201c\/log\u201d)
                                                public String logTest() {
                                                log.info (\u201c\u65e5\u5fd7\u6d4b\u8bd5\u6210\u529f\uff01\u201d);
                                                return \u201cok\u201d;
                                                }
                                                }<\/p>\n\n\n\n
                                                \n\n\n\n
                                                22. @Data<\/code><\/h3>\n\n\n\n
                                                  \n
                                                • \u6bd4\u55bb<\/strong>\uff1a\u79d8\u4e66\u5e2e\u4f60\u5199 getter\/setter\u3002<\/li>\n\n\n\n
                                                • \u4ee3\u7801<\/strong>\uff1a<\/li>\n<\/ul>\n\n\n\n
                                                  @Data
                                                  @AllArgsConstructor
                                                  public class User {
                                                  private Long id;
                                                  private String name;
                                                  }<\/p>\n\n\n\n
                                                  \n\n\n\n
                                                  \u603b\u7ed3\uff08\u63a8\u8350\u5b66\u4e60\u987a\u5e8f\uff09<\/h1>\n\n\n\n
                                                    \n
                                                  1. \u542f\u52a8\u7c7b\u6ce8\u89e3<\/strong>\uff1a@SpringBootApplication \/ @Configuration \/ @Bean<\/code><\/li>\n\n\n\n
                                                  2. Bean \u7ba1\u7406<\/strong>\uff1a@Component \/ @Service \/ @Repository \/ @Autowired \/ @Qualifier<\/code><\/li>\n\n\n\n
                                                  3. Web \u5c42<\/strong>\uff1a@RestController \/ @RequestMapping \/ @GetMapping \/ @PostMapping \/ @PathVariable \/ @RequestParam \/ @RequestBody<\/code><\/li>\n\n\n\n
                                                  4. \u6570\u636e\u5e93 & \u4e8b\u52a1<\/strong>\uff1a@Repository \/ @Mapper \/ @Transactional<\/code><\/li>\n\n\n\n
                                                  5. \u914d\u7f6e\u6587\u4ef6<\/strong>\uff1a@Value \/ @ConfigurationProperties<\/code><\/li>\n\n\n\n
                                                  6. \u5de5\u5177\u7c7b<\/strong>\uff1aLombok \u6ce8\u89e3\uff08@Data \/ @Slf4j<\/code>\uff09<\/li>\n<\/ol>\n","protected":false},"excerpt":{"rendered":"
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