1. 添加config 配置类

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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;
    }
 
}

2. 在逻辑类的方法上抛出异常 throws Exception，比如

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/**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;
}

3. 前端页面接收异常结果

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//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
 
            }
        }
    });