spring boot自定义参数注解

@Retention(RetentionPolicy.RUNTIME)
@Target({ElementType.PARAMETER,ElementType.METHOD})
public @interface Test {}

@Configuration
public class TestConfig  implements WebMvcConfigurer {
    @Override
    public void addArgumentResolvers(List<HandlerMethodArgumentResolver> resolvers) {
        resolvers.add(new TestArgumentResolver());
    }

    @Override
    public void addReturnValueHandlers(List<HandlerMethodReturnValueHandler> handlers) {
        handlers.add(new TestArgumentResolver());
    }
}

public class TestArgumentResolver implements HandlerMethodArgumentResolver, HandlerMethodReturnValueHandler {
    @Override
    public boolean supportsParameter(MethodParameter parameter) {
        return parameter.hasParameterAnnotation(Test.class);
    }

    @Override
    public Object resolveArgument(MethodParameter parameter, ModelAndViewContainer mavContainer, NativeWebRequest webRequest, WebDataBinderFactory binderFactory) throws Exception {
        Result r = getVal(webRequest.getNativeRequest(HttpServletRequest.class), parameter);
        if (r.isSuccess()) return r.getData();
        HttpServletResponse resp = webRequest.getNativeResponse(HttpServletResponse.class);
        resp.getWriter().write(r.getMessage());
        resp.getWriter().flush();
        return null;
    }

    @Override
    public boolean supportsReturnType(MethodParameter returnType) {
        return returnType.hasMethodAnnotation(Test.class);
    }

    @Override
    public void handleReturnValue(Object returnValue, MethodParameter returnType, ModelAndViewContainer mavContainer, NativeWebRequest webRequest) throws Exception {
        HttpServletResponse resp = webRequest.getNativeResponse(HttpServletResponse.class);
        resp.getWriter().write(getResult(returnValue));
        resp.getWriter().flush();
    }
}

@Test public int test(@Test int id) { return id; }