springboot编程之全局异常捕获

springboot编程之全局异常捕获

1、创建GlobalExceptionHandler.java，在类上注解@ControllerAdvice，

在方法上注解@ExceptionHandler(value = Exception.class)，Exception.class表示拦截所有的异常信息

package com.imooc.web.controller;

import com.imooc.exception.UserNotExistException;
import org.springframework.http.HttpStatus;
import org.springframework.web.bind.annotation.ControllerAdvice;
import org.springframework.web.bind.annotation.ExceptionHandler;
import org.springframework.web.bind.annotation.ResponseBody;
import org.springframework.web.bind.annotation.ResponseStatus;

import java.util.HashMap;
import java.util.Map;

@ControllerAdvice
public class GlobalExceptionHandler {

    @ExceptionHandler(Exception.class)
    @ResponseBody
    @ResponseStatus(HttpStatus.INTERNAL_SERVER_ERROR)
    public Map<String, Object> handleUserNotExistException(Exception ex) {
        Map<String, Object> result = new HashMap<>();
        result.put("message", ex.getMessage());
        return result;
    }

}