import Axios, { type AxiosInstance, type AxiosRequestConfig, type CustomParamsSerializer } from "axios"; import type { PureHttpError, RequestMethods, PureHttpResponse, PureHttpRequestConfig } from "./types.d"; import { stringify } from "qs"; import NProgress from "../progress"; import { getToken, formatToken, TokenKey, multipleTabsKey } from "@/utils/auth"; import { message } from "@/utils/message"; import { storageLocal } from "@pureadmin/utils"; import Cookies from "js-cookie"; import router from "@/router"; // 相关配置请参考:www.axios-js.com/zh-cn/docs/#axios-request-config-1 const defaultConfig: AxiosRequestConfig = { // 请求超时时间 timeout: 10000, headers: { Accept: "application/json, text/plain, */*", "Content-Type": "application/json", "X-Requested-With": "XMLHttpRequest" }, // 数组格式参数序列化(https://github.com/axios/axios/issues/5142) paramsSerializer: { serialize: stringify as unknown as CustomParamsSerializer } }; class PureHttp { constructor() { this.httpInterceptorsRequest(); this.httpInterceptorsResponse(); } /** `token`过期后,暂存待执行的请求 */ private static requests = []; /** 防止重复刷新`token` */ private static isRefreshing = false; /** 初始化配置对象 */ private static initConfig: PureHttpRequestConfig = {}; /** 保存当前`Axios`实例对象 */ private static axiosInstance: AxiosInstance = Axios.create(defaultConfig); /** 重连原始请求 */ private static retryOriginalRequest(config: PureHttpRequestConfig) { return new Promise(resolve => { PureHttp.requests.push((token: string) => { config.headers["Authorization"] = formatToken(token); resolve(config); }); }); } /** 请求拦截 */ private httpInterceptorsRequest(): void { PureHttp.axiosInstance.interceptors.request.use( async (config: PureHttpRequestConfig): Promise => { // 开启进度条动画 NProgress.start(); // 优先判断post/get等方法是否传入回调,否则执行初始化设置等回调 if (typeof config.beforeRequestCallback === "function") { config.beforeRequestCallback(config); return config; } if (PureHttp.initConfig.beforeRequestCallback) { PureHttp.initConfig.beforeRequestCallback(config); return config; } /** 请求白名单,放置一些不需要`token`的接口(通过设置请求白名单,防止`token`过期后再请求造成的死循环问题) */ const whiteList = ["/captcha", "/login"]; return whiteList.some(url => config.url.endsWith(url)) ? config : new Promise(resolve => { const data = getToken(); if (data) { const now = new Date().getTime() / 1000; const expired = parseInt(data.expireAt) - now <= 0; if (expired) { message("登陆已过期", { type: "error" }); router.replace({ path: "/login", query: { redirect: router.currentRoute.value.fullPath } }); Cookies.remove(TokenKey); Cookies.remove(multipleTabsKey); storageLocal().clear(); resolve(PureHttp.retryOriginalRequest(config)); } else { config.headers["Authorization"] = data.token; resolve(config); } } else { resolve(config); } }); }, error => { return Promise.reject(error); } ); } /** 响应拦截 */ private httpInterceptorsResponse(): void { const instance = PureHttp.axiosInstance; instance.interceptors.response.use( (response: PureHttpResponse) => { const $config = response.config; // 关闭进度条动画 NProgress.done(); // 优先判断post/get等方法是否传入回调,否则执行初始化设置等回调 if (typeof $config.beforeResponseCallback === "function") { $config.beforeResponseCallback(response); return response.data; } if (PureHttp.initConfig.beforeResponseCallback) { PureHttp.initConfig.beforeResponseCallback(response); return response.data; } return response.data; }, (error: PureHttpError) => { const $error = error; $error.isCancelRequest = Axios.isCancel($error); // 关闭进度条动画 NProgress.done(); // 所有的响应异常 区分来源为取消请求/非取消请求 return Promise.reject($error); } ); } /** 通用请求工具函数 */ public request( method: RequestMethods, url: string, param?: AxiosRequestConfig, axiosConfig?: PureHttpRequestConfig ): Promise { const config = { method, url, ...param, ...axiosConfig } as PureHttpRequestConfig; // 单独处理自定义请求/响应回调 return new Promise((resolve, reject) => { PureHttp.axiosInstance .request(config) .then((response: undefined) => { resolve(response); }) .catch(error => { if (error.response === null || error.response === undefined) { message(error.message, { type: "error" }); } else { if ( error.response.data === null || error.response.data === undefined || error.response.data === "" ) { message(error.response.statusText, { type: "error" }); } else { message(error.response.data.message, { type: "error" }); } } reject(error); }); }); } /** 单独抽离的`post`工具函数 */ public post( url: string, params?: AxiosRequestConfig

, config?: PureHttpRequestConfig ): Promise { return this.request("post", url, params, config); } /** 单独抽离的`get`工具函数 */ public get( url: string, params?: AxiosRequestConfig

, config?: PureHttpRequestConfig ): Promise { return this.request("get", url, params, config); } } export const http = new PureHttp();