springboot 全局异常拦截器，友好异常提示

package org.fh.config;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import org.springframework.context.annotation.Configuration;
import org.springframework.web.servlet.HandlerExceptionResolver;
import org.springframework.web.servlet.ModelAndView;
import org.springframework.web.servlet.view.json.MappingJackson2JsonView;
/**
 * 说明：错误异常拦截处理
 * 作者：FH Admin
 * from fhadmin.cn
 */
@Configuration
public class ExceptionConfiguration implements HandlerExceptionResolver {
  @Override
  public ModelAndView resolveException(HttpServletRequest request, HttpServletResponse response, Object handler,
      Exception ex) {
    ModelAndView mv = new ModelAndView(new MappingJackson2JsonView());  //返回json
    String exInfo = ex.toString().replaceAll("\n", "<br/>");
    boolean status = exInfo.contains("Subject does not have permission");
    if(status){
      exInfo = "[没有此页面的访问权限]" + exInfo;
        }else {
          System.out.println("==============异常开始=============");
        ex.printStackTrace();
        System.out.println("==============异常结束=============");
        }
    mv.addObject("exception", exInfo);
    mv.addObject("result", "exception");
    return mv;
  }
}

/**删除
   * @param out
   * @throws Exception
   */
  @RequestMapping(value="/delete")
  @RequiresPermissions("autograph:del")
  @ResponseBody
  public Object delete() throws Exception{
    Map<String,String> map = new HashMap<String,String>();
    String errInfo = "success";
    //xxxx
    map.put("result", errInfo);       //返回结果
    return map;
  }

//发送 post 请求提交保存
            $.ajax({
                xhrFields: {
                      withCredentials: true
                  },
          type: "POST",
          url: httpurl+'xxxx/delete',
            data: {tm:new Date().getTime()},
          dataType:"json",
          success: function(data){
                        if("success" == data.result){
                        }else if ("exception" == data.result){
                          alert("模块异常"+data.exception);//显示异常
                        }
                    }
        });