SpringMvc文件大小超过10M，自定义异常进行补捉

 

spring配置文件加上
<!-- 文件上传-->
<bean id="multipartResolver"
class="org.springframework.web.multipart.commons.CommonsMultipartResolver"
p:defaultEncoding="utf-8" >
<property name="resolveLazily" value="true"/>
<property name="maxUploadSize">
<value>1024*1024</value>
</property>
</bean>

全局刷新的方式  
返回页面

@ExceptionHandler
protected String exception(HttpServletRequest request,Exception e) {
log.error(e.getMessage(), e);
       if(e instanceof org.springframework.web.multipart.MaxUploadSizeExceededException){ 
           request.setAttribute("exception", new RuntimeException("文件大小超过10M")); 
      } else{
      request.setAttribute("exception", e);
      }
return "forward:/errorPage/500.jsp";
}

异步刷新的方式，提交的请求时异步的  返回json数据
//json返回  文件大小超过10M
@ExceptionHandler(MaxUploadSizeExceededException.class)
@ResponseBody
protected String exceptionMaxUploadSizeExceededJson(HttpServletRequest request,Exception e) {
return "Exceed";
}
前台判断即可