api自动增加前缀

• AutoPrefixUrlMapping.java

  public class AutoPrefixUrlMapping extends RequestMappingHandlerMapping {
  
      @Value("${api-package}")
      private String apiPackagePath;
  
      @Override
      protected RequestMappingInfo getMappingForMethod(Method method, Class<?> handlerType) {
          RequestMappingInfo mappingInfo =  super.getMappingForMethod(method, handlerType);
          if(mappingInfo != null){
              String prefix = this.getPrefix(handlerType);
              return RequestMappingInfo.paths(prefix).build().combine(mappingInfo);
          }
          return mappingInfo;
      }
  
      private String getPrefix(Class<?> handlerType){
          String packageName = handlerType.getPackage().getName();
          String dotPath = packageName.replaceAll(this.apiPackagePath,"");
          return dotPath.replace(".", "/");
      }
  }

• AutoPrefixConfiguration.java

  @Configuration
  public class AutoPrefixConfiguration implements WebMvcRegistrations {
  
      @Override
      public RequestMappingHandlerMapping getRequestMappingHandlerMapping() {
          return new AutoPrefixUrlMapping();
      }
  }

• application.yml

api-package: com.example.demo

• DemoController

@RestController
@RequestMapping("/demo")
public class DemoController {

    @GetMapping("/a")
    public ResponseEntity getUser() {
        return ResponseEntity.status(HttpStatus.OK).body("22");
    }

• 目录结构

请求地址:http://localhost:8080/api/demo/a