app.js

App({onLaunch: function () {var that = this;// 登錄wx.login({success: res => {// 發送 res.code 到后臺換取 openId, sessionKey, unionId}})// 獲取用戶信息wx.getSetting({success: res => {if (res.authSetting['scope.userInfo']) {// 已經授權，可以直接調用 getUserInfo 獲取頭像昵稱，不會彈框wx.getUserInfo({success: res => {// 可以將 res 發送給后臺解碼出 unionIdthis.globalData.userInfo = res.userInfo// 由于 getUserInfo 是網絡請求，可能會在 Page.onLoad 之后才返回// 所以此處加入 callback 以防止這種情況if (this.userInfoReadyCallback) {this.userInfoReadyCallback(res)}}})}}})this.initSocket();},initSocket() {let that = thisthis.globalData.SocketTask = wx.connectSocket({url: 'wss://*******',})this.globalData.SocketTask.onOpen(function (res) {console.log('WebSocket連接已打開！readyState=' + that.globalData.SocketTask.readyState)var openid = wx.getStorageSync('openid')wx.sendSocketMessage({data:openid});})this.globalData.SocketTask.onMessage(function (res) {var objs = JSON.parse(res.data)that.globalData.callback(res)})this.globalData.SocketTask.onError(function (res) {console.log('readyState=' + that.globalData.SocketTask.readyState)that.initSocket()})this.globalData.SocketTask.onClose(function (res) {console.log('WebSocket連接已關閉！readyState=' + that.globalData.SocketTask.readyState)that.initSocket()})},globalData: {SocketTask: '',callback: function () {},} })

wxml(接收信息)

app.globalData.callback = function (res) {//res 接收websocket onMessage事件返回的數據var objs = JSON.parse(res.data)console.log(res) }

總結

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