第一步:自定义一个枚举类型规范异常信息(一般公司会有自己的枚举类。这里只是举例的信息)
@Getter
public enum ExceptionEnum {
INVALID_FILE_TYPE(400, "无效的文件类型!"),
INVALID_PARAM_ERROR(400, "无效的请求参数!"),
INVALID_PHONE_NUMBER(400, "无效的手机号码"),
INVALID_VERIFY_CODE(400, "验证码错误!"),
INVALID_USERNAME_PASSWORD(400, "无效的用户名和密码!"),
INVALID_SERVER_ID_SECRET(400, "无效的服务id和密钥!"),
INVALID_NOTIFY_PARAM(400, "回调参数有误!"),
INVALID_NOTIFY_SIGN(400, "回调签名有误!"),
CATEGORY_NOT_FOUND(404, "商品分类不存在!"),
BRAND_NOT_FOUND(404, "品牌不存在!"),
SPEC_NOT_FOUND(404, "规格不存在!"),
GOODS_NOT_FOUND(404, "商品不存在!"),
CARTS_NOT_FOUND(404, "购物车不存在!"),
APPLICATION_NOT_FOUND(404, "应用不存在!"),
ORDER_NOT_FOUND(404, "订单不存在!"),
ORDER_DETAIL_NOT_FOUND(404, "订单数据不存在!"),
DATA_TRANSFER_ERROR(500, "数据转换异常!"),
INSERT_OPERATION_FAIL(500, "新增操作失败!"),
UPDATE_OPERATION_FAIL(500, "更新操作失败!"),
DELETE_OPERATION_FAIL(500, "删除操作失败!"),
FILE_UPLOAD_ERROR(500, "文件上传失败!"),
DIRECTORY_WRITER_ERROR(500, "目录写入失败!"),
FILE_WRITER_ERROR(500, "文件写入失败!"),
SEND_MESSAGE_ERROR(500, "短信发送失败!"),
INVALID_ORDER_STATUS(500, "订单状态不正确!"),
STOCK_NOT_ENOUGH_ERROR(500, "库存不足!"),
UNAUTHORIZED(401, "登录失效或未登录!");
private int status;
private String message;
ExceptionEnum(int status, String message) {
this.status = status;
this.message = message;
}
}
第二步:自定义一个异常:
@Getterpublic class LyException extends RuntimeException { private Integer status; public LyException(Integer status, String message) { super(message); this.status = status; } public LyException(ExceptionEnum exceptionEnum) { super(exceptionEnum.getMessage()); this.status = exceptionEnum.getStatus(); }}
第三步:自定义一个异常返回对象(不是异常,是返回对象,这里也是举例的信息)
@Getterpublic class LyExceptionResult { private int status; private String message; private String timestamp; public LyExceptionResult(LyException e) { this.status = e.getStatus(); this.message = e.getMessage(); this.timestamp = DateTime.now().toString("yyyy-MM-dd HH:mm:ss"); }}
第四步:自定义异常处理器
@ControllerAdvice注解
:默认情况下,会拦截所有加了@Controller
的类
@ControllerAdvicepublic class LyExceptionControllerAdvice { /** * 拦截LyException */ @ExceptionHandler(LyException.class) public ResponseEntity<LyExceptionResult> handlerLyException(LyException e){ return ResponseEntity.status(e.getStatus()).body(new LyExceptionResult(e)); }}
原文地址:https://www.cnblogs.com/3hhh/p/11802616.html