78 lines
2.1 KiB
JavaScript
78 lines
2.1 KiB
JavaScript
// 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 store from '../store'
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import { getToken } from '@/utils/auth'
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import { Notification } from 'element-ui'
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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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.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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await this.start();
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})
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connection.onreconnected(() => {
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console.log('断线重连')
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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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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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} 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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}
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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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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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} |