RestApiProxyInvocationHandler.java 文件源码

Annotation findMappingAnnotation(AnnotatedElement element) {
  Annotation mappingAnnotation = element.getAnnotation(RequestMapping.class);

  if (mappingAnnotation == null) {
    mappingAnnotation = element.getAnnotation(GetMapping.class);

    if (mappingAnnotation == null) {
      mappingAnnotation = element.getAnnotation(PostMapping.class);

      if (mappingAnnotation == null) {
        mappingAnnotation = element.getAnnotation(PutMapping.class);

        if (mappingAnnotation == null) {
          mappingAnnotation = element.getAnnotation(DeleteMapping.class);

          if (mappingAnnotation == null) {
            mappingAnnotation = element.getAnnotation(PatchMapping.class);
          }
        }
      }
    }
  }

  if (mappingAnnotation == null) {
    if (element instanceof Method) {
      Method method = (Method) element;
      mappingAnnotation = AnnotationUtils.findAnnotation(method, RequestMapping.class);
    } else {
      Class<?> clazz = (Class<?>) element;
      mappingAnnotation = AnnotationUtils.findAnnotation(clazz, RequestMapping.class);
    }
  }

  return mappingAnnotation;
}