自定义业务错误码的好处？

自定义业务错误码代码# app/core/constants/ErrorCode.py from enum import Enum class ErrorCode(Enum): 业务状态码枚举 # --- 1xxxx 通用系统错误 --- SUCCESS (200, 操作成功) SYSTEM_ERROR (500, 系统内部错误请稍后再试) PARAM_ERROR (422, 请求参数校验失败) NOT_FOUND (404, 请求资源不存在) # --- 2xxxx 用户与认证模块 --- TOKEN_EXPIRED (20001, 登录已过期请重新登录) TOKEN_INVALID (20002, 无效的身份凭证) USER_NOT_FOUND (20003, 用户不存在) PASSWORD_ERROR (20004, 用户名或密码错误) USER_DISABLED (20005, 该账户已被禁用) def __init__(self, code: int, msg: str): self.code code self.msg msg调用# api/auth.py from fastapi import APIRouter, Form from pydantic import BaseModel from app.core.BusinessException import BusinessException from app.core.ErrorCode import ErrorCode from app.utils.response import success router APIRouter(prefix/account, tags[登录验证]) router.post(/login) def get_all_products(user_id: int Form(...), user_name: str Form(...)): if user_id 123: # 例如用户状态被锁定 # raise BusinessException(code10001, msg当前用户状态错误) raise BusinessException(code ErrorCode.USER_NOT_FOUND.code,msgErrorCode.USER_NOT_FOUND.msg) user_info {id: user_id, name: f用户{user_name}} return success(datauser_info)三测试效果四说明也可以直接传递业务错误码给BusinessException,