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103 lines
3.0 KiB
JavaScript
103 lines
3.0 KiB
JavaScript
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// 官方文档：https://docs.microsoft.com/zh-cn/aspnet/core/signalr/javascript-client?view=aspnetcore-6.0&viewFallbackFrom=aspnetcore-2.2&tabs=visual-studio
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import * as signalR from '@microsoft/signalr'
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import useSocketStore from '@/store/modules/socket'
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import { getToken } from '@/utils/auth'
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import useUserStore from '@/store/modules/user'
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import { ElMessage } from 'element-plus'
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export default {
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// signalR对象
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SR: {},
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// 失败连接重试次数
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failNum: 4,
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baseUrl: '',
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init(url) {
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const connection = new signalR.HubConnectionBuilder()
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.withUrl(url, { accessTokenFactory: () => getToken() })
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.withAutomaticReconnect()//自动重新连接
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.configureLogging(signalR.LogLevel.Information)
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.build();
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this.SR = connection;
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// 断线重连
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connection.onclose(async () => {
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console.log('断开连接了')
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console.assert(connection.state === signalR.HubConnectionState.Disconnected);
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// 建议用户重新刷新浏览器
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await this.start();
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})
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connection.onreconnected(() => {
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console.log('断线重新连接成功')
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})
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this.receiveMsg(connection);
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// 启动
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// this.start();
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},
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/**
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* 调用 this.signalR.start().then(async () => { await this.SR.invoke("method")})
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* @returns
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*/
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async close(){
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var that = this;
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await this.SR.stop();
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},
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async start() {
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var that = this;
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try {
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//使用async和await 或 promise的then 和catch 处理来自服务端的异常
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await this.SR.start();
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//console.assert(this.SR.state === signalR.HubConnectionState.Connected);
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console.log('signalR 连接成功了', this.SR.state);
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return true;
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} catch (error) {
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that.failNum--;
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console.log(`失败重试剩余次数${that.failNum}`, error)
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if (that.failNum > 0) {
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setTimeout(async () => {
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await this.SR.start()
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}, 5000);
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}
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return false;
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}
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},
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// 接收消息处理
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receiveMsg(connection) {
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connection.on("onlineNum", (data) => {
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const socketStore = useSocketStore();
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socketStore.setOnlineNum(data)
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});
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connection.on("forceOut", (msg) => {
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useUserStore().logOut().then(() => {
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ElMessage.error(msg);
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location.href = '/index';
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})
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});
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// connection.on("onlineNum", (data) => {
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// store.dispatch("socket/changeOnlineNum", data);
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// });
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// // 接收欢迎语
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// connection.on("welcome", (data) => {
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// console.log('welcome', data)
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// Notification.info(data)
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// });
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// // 接收后台手动推送消息
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// connection.on("receiveNotice", (title, data) => {
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// Notification({
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// type: 'info',
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// title: title,
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// message: data,
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// dangerouslyUseHTMLString: true,
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// duration: 0
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// })
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// })
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// // 接收系统通知/公告
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// connection.on("moreNotice", (data) => {
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// if (data.code == 200) {
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// store.dispatch("socket/getNoticeList", data.data);
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// }
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// })
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}
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}
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