全局异常处理-springboot

最新推荐文章于 2024-07-24 00:43:45 发布

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最新推荐文章于 2024-07-24 00:43:45 发布

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本文介绍如何在Java中自定义异常类MyException和MyRuntimeException，并通过@ControllerAdvice注解创建全局异常处理器MyExceptionHandler，处理并返回统一的错误信息。

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1.定义异常处理类

public class MyException extends Exception{

private static final long serialVersionUID = -5519743897907627214L;

public MyException(String message) {
super(message);
}

}

public class MyRuntimeException extends RuntimeException {

private static final long serialVersionUID = -6925278824391495117L;

public MyRuntimeException(String message) {
super(message);
}

}

2.异常处理器

@ControllerAdvice
@ResponseBody
public class MyExceptionHandler {

@ExceptionHandler(MyException.class)
@ResponseBody
public Map<String, Object> handlerMyException(MyException ex) {
Map<String,Object> result = new HashMap<>();
result.put("message", ex.getMessage());
result.put("code", 300);
return result;
}

@ExceptionHandler(MyRuntimeException.class)
@ResponseBody
public Map<String, Object> handlerMyRuntimeException(MyRuntimeException ex) {
Map<String,Object> result = new HashMap<>();
result.put("message", ex.getMessage());
result.put("code", 300);
return result;
}
}

3.在抛出异常时打印信息为

{

"code":300,

"message":"自定义异常信息"

}

@ControllerAdvice
@ResponseBody

没有加这个注解返回信息是

{
"timestamp": "2018-12-20 15:19:46",
"status": 500,
"error": "Internal Server Error",
"message": "Request processing failed; nested exception is **Exception: 用户未登录或会话过期",
"path": "/"
}

原文参考:https://blog.youkuaiyun.com/smollsnail/article/details/79143007