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v2.0
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61
web/src/utils/http/axios/axiosCancel.ts
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61
web/src/utils/http/axios/axiosCancel.ts
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import axios, { AxiosRequestConfig, Canceler } from 'axios';
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import qs from 'qs';
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import { isFunction } from '@/utils/is/index';
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// 声明一个 Map 用于存储每个请求的标识 和 取消函数
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let pendingMap = new Map<string, Canceler>();
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export const getPendingUrl = (config: AxiosRequestConfig) =>
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[config.method, config.url, qs.stringify(config.data), qs.stringify(config.params)].join('&');
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export class AxiosCanceler {
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/**
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* 添加请求
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* @param {Object} config
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*/
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addPending(config: AxiosRequestConfig) {
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this.removePending(config);
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const url = getPendingUrl(config);
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config.cancelToken =
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config.cancelToken ||
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new axios.CancelToken((cancel) => {
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if (!pendingMap.has(url)) {
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// 如果 pending 中不存在当前请求,则添加进去
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pendingMap.set(url, cancel);
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}
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});
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}
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/**
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* @description: 清空所有pending
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*/
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removeAllPending() {
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pendingMap.forEach((cancel) => {
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cancel && isFunction(cancel) && cancel();
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});
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pendingMap.clear();
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}
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/**
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* 移除请求
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* @param {Object} config
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*/
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removePending(config: AxiosRequestConfig) {
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const url = getPendingUrl(config);
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if (pendingMap.has(url)) {
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// 如果在 pending 中存在当前请求标识,需要取消当前请求,并且移除
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const cancel = pendingMap.get(url);
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cancel && cancel(url);
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pendingMap.delete(url);
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}
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}
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/**
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* @description: 重置
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*/
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reset(): void {
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pendingMap = new Map<string, Canceler>();
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}
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}
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