我的其他文章也讲解的比较有趣如果喜欢博主的讲解方式可以多多支持一下感谢

Spring

咱今儿个就来好好讲解一下SpringBoot的全局异常处理保证你听得懂会写会用

没有全局异常处理

org.springframework.http.HttpStatus;

import

org.springframework.http.ResponseEntity;

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;

处理自定义的业务异常ExceptionHandler(value

BusinessException.class)ResponseBody

JSON

handleBusinessException(BusinessException

{MapString,

e.getCode());errorInfo.put(message,

new

NullPointerException.class)ResponseBodypublic

Object

handleNullPointerException(NullPointerException

{MapString,

HttpStatus.INTERNAL_SERVER_ERROR);

500

Exception.class)ResponseBodypublic

Object

HttpStatus.INTERNAL_SERVER_ERROR);}

}//

返回给客户端。

ResponseEntityMapString,

Object:

状态码。

handleBusinessException(BusinessException

e):

❌表示客户端请求有误。

handleException(Exception

e):

BusinessException你可以根据业务需求创建自己的异常类

Controller

org.springframework.web.bind.annotation.GetMapping;

import

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

public

http://localhost:8080/test?input

(不带参数)会返回一个

http://localhost:8080/test?inputerror会返回一个

500

http://localhost:8080/test?inputworld会正常返回

“Hello,