springboot 全局異常攔截器，友好異常提示

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;
/**
 * 說明：錯誤異常攔截處理
 * 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 = "[沒有此頁面的訪問權限]" + exInfo;
        }else {
            System.out.println("==============異常開始=============");
            ex.printStackTrace();
            System.out.println("==============異常結束=============");
        }
        mv.addObject("exception", exInfo);
        mv.addObject("result", "exception");
        
        return mv;
    }
    
}

/**刪除
     * @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);             //返回結果
        return map;
    }

//發送 post 請求提交保存
            $.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("模塊異常"+data.exception);//顯示異常
                            
                        }
                    }
                });