springboot全局异常处理

@ControllerAdvice, 这里返回的json

package com.example.hander;

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

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

// mvc的异常
@ControllerAdvice
// 如果是Rest就用RestControllerAdvice
public class ExceptionHandlerDemo {

  /**
   * 全局异常捕捉处理
   *
   * @Author: lxx
   * @Date: 2020-05-18 16:19:54
   */
  @ResponseBody
  @ExceptionHandler(value = Exception.class)
  public Map<String, Object> errorHandler(Exception e) {
    Map<String, Object> map = new HashMap<String, Object>();
    map.put("code", 500);
    map.put("msg", e.getMessage());
    return map;
  }
}