springMVC上传文件大小限制以及超过限制后的自定义处理

 在xml中加下如下配置

     <bean id="multipartResolver" class="org.springframework.web.multipart.commons.
       CommonsMultipartResolver">
         <property name="defaultEncoding" value="UTF-8"/>

         <property name="maxUploadSize" value="200000"/>

         <property name="resolveLazily" value="true"/>
     bean>

 

 

Action中增加如下处理

@Controller

public class TestAction{

    @RequestMapping(value = "/encoder/importEncoder")
    @ResponseBody
    public ModelAndView importEncoder(MultipartFile encoderFile, Integer unitId) {

     //代码省略

    }

    /***

    **异常处理

    ***/

    @ExceptionHandler(Exception.class)
    public @ResponseBody ModelAndView ExceptionHandler(Exception exceededException) {
        ActionResult result = new ActionResult(false);
        if (ValidateUtil.isNotNull(exceededException) && (exceededException.getCause() instanceof MaxUploadSizeExceededException)) {
            result.setMessage("文件导入超过" + ConstparamEncoder.getFaceImportZipFileMaxSize() + "字节限制，请分配次导入！");
            AjaxUtil.ajaxWrite(JsonUtils.object2Json(result));
        }else {
            LogUtils.logException(exceededException);
            result.setMessage("出现异常信息");
            AjaxUtil.ajaxWrite(JsonUtils.object2Json(result));
        }
        return null;
    }

 

}