Springboot实现统一异常管理_springboot统一异常管理器-优快云博客

代码展示了如何在SpringBoot应用中使用`@ControllerAdvice`和`@ExceptionHandler`进行全局异常处理，包括捕获`Exception`和`MethodArgumentNotValidException`，并返回自定义的错误响应。同时，依赖于Spring的相关库和SLF4J日志框架。

粘贴这段代码即可

package tech.mybatis.plus.springboot.study.details.controller;

import org.springframework.http.HttpStatus;
import org.springframework.http.ResponseEntity;
import org.springframework.validation.ObjectError;
import org.springframework.web.bind.MethodArgumentNotValidException;
import org.springframework.web.bind.annotation.ControllerAdvice;
import org.springframework.web.bind.annotation.ExceptionHandler;
import tech.mybatis.plus.springboot.study.details.response.ErrorResponse;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import java.util.Collections;
import java.util.List;
import java.util.stream.Collectors;

@ControllerAdvice
public class GlobalExceptionHandler {
    @ExceptionHandler(Exception.class)
    public ResponseEntity<?> handleException(Exception e) {
        Logger log = LoggerFactory.getLogger(GlobalExceptionHandler.class);
        log.error("Unhandled exception occurred", e);
        ErrorResponse errorResponse = new ErrorResponse(Collections.singletonList("An unexpected error occurred"));
        return ResponseEntity.status(HttpStatus.INTERNAL_SERVER_ERROR).body(errorResponse);
    }

    @ExceptionHandler(MethodArgumentNotValidException.class)
    public ResponseEntity<?> handleMethodArgumentNotValidException(MethodArgumentNotValidException e) {
        List<ObjectError> errors = e.getBindingResult().getAllErrors();
        ErrorResponse errorResponse = new ErrorResponse(errors.stream().map(ObjectError::getDefaultMessage).collect(Collectors.toList()));
        return ResponseEntity.status(HttpStatus.BAD_REQUEST).body(errorResponse);
    }
}

这个是 tech.mybatis.plus.springboot.study.details.response.ErrorResponse;

import java.util.List;

public class ErrorResponse {
    private List<String> errors;

    public ErrorResponse(List<String> errors) {
        this.errors = errors;
    }

    public List<String> getErrors() {
        return errors;
    }

    public void setErrors(List<String> errors) {
        this.errors = errors;
    }
}

maven中添加如下配置：

<dependency>
    <groupId>org.springframework</groupId>
    <artifactId>spring-web</artifactId>
    <version>5.3.8</version>
</dependency>
<dependency>
    <groupId>org.springframework</groupId>
    <artifactId>spring-context</artifactId>
    <version>5.3.8</version>
</dependency>
<dependency>
    <groupId>org.slf4j</groupId>
    <artifactId>slf4j-api</artifactId>
    <version>1.7.32</version>
</dependency>
<dependency>
    <groupId>org.slf4j</groupId>
    <artifactId>slf4j-log4j12</artifactId>
    <version>1.7.32</version>
</dependency>