多部分文件上载：d出引导返回JSON错误消息中的大小超过异常

因为我设置了最大文件上传限制,所以我得到了

org.apache.tomcat.util.http.fileupload.fileUploadBase$fileSizelimitExceededException: The fIEld file exceeds its maximum permitted size of 2097152 bytes 

上传文件时出错.它给我的API提供500错误,我应该处理这个错误并以JsON格式返回响应,而不是ErrorController中提供的错误

我想捕获该异常并给出JsON响应而不是ErrorPage.

@RequestMapPing(value="/save",method=RequestMethod.POST)    public ResponseDTO

接受文件的DTO如下

public class fileUploadSingleDTO {@NotNull    private Integer documentname;    private Integer documentVersion;    @NotNull    private multipartfile file;}

@ControllerAdvicepublic class MyErrorController extends ResponseEntityExceptionHandler {Logger logger = org.slf4j.LoggerFactory.getLogger(getClass());@ExceptionHandler(MultipartException.class)@ResponseBodyString handlefileException(httpServletRequest request,Throwable ex) {    //return your Json insted this string.    return "file upload error";  }}