SpringBoot全局异常处理方案分享

@Data
public class IMMessageSend {
   /**
    * 发送消息信息
   */
   @Length(max = 500,message = "消息长度不能大于500个字符")
   private String msg;
   /**
    * 接收用户id集合
   */
   private List<String> receiveUserIds;
   /**
    * 发送用户id
   */
   private String sendUserId;
}

@Slf4j
@RestControllerAdvice
public class ExceptionHandlerConfig {
![image.png](https://p6-juejin.byteimg.com/tos-cn-i-k3u1fbpfcp/210abf8f82204ea18c9af123dcb4a7f3~tplv-k3u1fbpfcp-watermark.image?)
   
    /**
     * 自定义验证异常
     */
    @ExceptionHandler(MethodArgumentNotValidException.class)
    public Object handleMethodArgumentNotValidException(MethodArgumentNotValidException e) {
        return new Results<>(false, "99999999",  e.getBindingResult().getFieldErrors().stream().map(FieldError::getDefaultMessage).collect(Collectors.joining("\n")));
    }
}

public class MidRouteException extends RuntimeException {
    private static final String ERROR_MESSAGE_FORMAT = "执行路由流程异常：%s";
    public MidRouteException(String error) {
        super(String.format(ERROR_MESSAGE_FORMAT, error));
    }
}

public class MidAssert {
    /**
     * 断言 执行异常
     *
     * @param isTrue  判断标识
     * @param message 异常信息
     */
    public static void isTrueWithSqlException(boolean isTrue, String message) {
        if (!isTrue) {
            throw new MidRouteException(message);
        }
    }

/**
 * 拦截MidSqlException MidSqlFrameException  MidRouteException MidRouteFrameException异常
 */
@ExceptionHandler({MidSqlException.class, MidSqlFrameException.class, MidRouteException.class, MidRouteFrameException.class})
public Results<String> midRouteExceptionHandler(HttpServletRequest req, HttpServletResponse res, Exception e) {
    log.error("中台异常", e);
    return new Results<>(false, "99999999", e.getMessage());
}