SpringMVC的Body参数拦截的问题

public class JsonViewRequestBodyAdvice extends RequestBodyAdviceAdapter {  /**   * 这里是一个前置拦截匹配操作,其实就是告诉你满足为true的才会执行下面的beforeBodyRead方法,这里可以定义自己业务相关的拦截匹配   * @param methodParameter   * @param targetType   * @param converterType   * @return   */  @Override  public boolean supports(MethodParameter methodParameter, Type targetType,      Class<? extends HttpMessageConverter<?>> converterType) {            return (AbstractJackson2HttpMessageConverter.class.isAssignableFrom(converterType) &&        methodParameter.getParameterAnnotation(JsonView.class) != null);  }    // 这里就是具体的前置操作了... 下面的例子就是查找这个入参方法是否有@JsonView修饰  @Override  public HttpInputMessage beforeBodyRead(HttpInputMessage inputMessage, MethodParameter methodParameter,      Type targetType, Class<? extends HttpMessageConverter<?>> selectedConverterType) throws IOException {    JsonView annotation = methodParameter.getParameterAnnotation(JsonView.class);    Class<?>[] classes = annotation.value();    if (classes.length != 1) {      throw new IllegalArgumentException(          "@JsonView only supported for request body advice with exactly 1 class argument: " + methodParameter);    }    return new MappingJacksonInputMessage(inputMessage.getBody(), inputMessage.getHeaders(), classes[0]);  }}

@ControllerAdvicepublic class LogResponseBodyAdvice implements ResponseBodyAdvice {   /**   *   * @param returnType   * @param converterType   * @return   */  @Override  public boolean supports(MethodParameter returnType, Class converterType) {    return true;  }  @Override  public Object beforeBodyWrite(Object body, MethodParameter returnType, MediaType selectedContentType, Class selectedConverterType, ServerHttpRequest request, ServerHttpResponse response) {    // 做任何事情 body 就是返回的结果对象,没有处理之前    return body;   }}

List<ControllerAdviceBean> beans = ControllerAdviceBean.findAnnotatedBeans(getApplicationContext());AnnotationAwareOrderComparator.sort(beans);

public static List<ControllerAdviceBean> findAnnotatedBeans(ApplicationContext applicationContext) {    List<ControllerAdviceBean> beans = new ArrayList<ControllerAdviceBean>();    for (String name : BeanFactoryUtils.beanNamesForTypeIncludingAncestors(applicationContext, Object.class)) {      if (applicationContext.findAnnotationOnBean(name, ControllerAdvice.class) != null) {        beans.add(new ControllerAdviceBean(name, applicationContext));      }    }    return beans;  }