系统全局异常拦截

package com.mybatis.config;

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

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

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

import java.util.HashMap;

import java.util.Map;

@ControllerAdvice

public class MyExceptionHandler {

    //拦截运行异常出现的错误

    @ExceptionHandler(RuntimeException.class)

    @ResponseBody

    public Map<Object, Object> exceptionHandler() {

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

        map.put("error", "500");

        map.put("msg", "系统出现错误！");

        return map;

    }

}