Spring Boot异常处理

一.异常类

package com.chx.springboot.exception;

 

 

import org.springframework.web.bind.annotation.ControllerAdvice;

import org.springframework.web.bind.annotation.ResponseBody;

 

 

import java.util.HashMap;

import java.util.Map;

 

 

@ControllerAdvice

public class ExceptionHandler {

    //捕获运行时异常

    @org.springframework.web.bind.annotation.ExceptionHandler(RuntimeException.class)

    @ResponseBody

    public Map<String,Object> exceHandler() {

        Map<String, Object> map = new HashMap<>();

        map.put("error", "500");

        map.put("msg", "您好，服务器暂时出现异常，请稍后重试");

        return map;

    }

}

 

二.控制层模拟异常

package com.chx.springboot.controller;

 

 

import org.springframework.web.bind.annotation.RequestMapping;

import org.springframework.web.bind.annotation.RestController;

 

 

@RestController

@RequestMapping("/hello")

public class MyController {

    @RequestMapping("/sayHello")

    public String sayHello(){

        //模拟运行时异常

        int result=5/0;

        return "hello springboot";

    }

}

 

三.运行结果