web-socket.js
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const qcloud = require('../../../../vendor/qcloud-weapp-client-sdk/index')
const loginUrl = require('../../../../config').loginUrl
const tunnelUrl = require('../../../../config').tunnelUrl
function showModal(title, content) {
wx.showModal({
title,
content,
showCancel: false
})
}
function showSuccess(title) {
wx.showToast({
title,
icon: 'success',
duration: 1000
})
}
Page({
data: {
socketStatus: 'closed'
},
onLoad: function() {
var self = this
qcloud.setLoginUrl(loginUrl)
qcloud.login({
success: function(result) {
console.log('登录成功', result)
self.setData({
hasLogin: true
})
},
fail: function(error) {
console.log('登录失败', error)
}
})
},
onUnload: function() {
this.closeSocket()
},
toggleSocket: function(e) {
const turnedOn = e.detail.value
if (turnedOn && this.data.socketStatus == 'closed') {
this.openSocket()
} else if (!turnedOn && this.data.socketStatus == 'connected') {
var showSuccess = true
this.closeSocket(showSuccess)
}
},
openSocket: function() {
var socket = this.socket = new qcloud.Tunnel(tunnelUrl)
socket.on('connect', () => {
console.log('WebSocket 已连接')
showSuccess('Socket已连接')
this.setData({
socketStatus: 'connected',
waitingResponse: false
})
})
socket.on('close', () => {
console.log('WebSocket 已断开')
this.setData({ socketStatus: 'closed' })
})
socket.on('error', error => {
showModal('发生错误', JSON.stringify(error))
console.error('socket error:', error)
this.setData({
loading: false
})
})
// 监听服务器推送消息
socket.on('message', message => {
showSuccess('收到信道消息')
console.log('socket message:', message)
this.setData({
loading: false
})
})
// 打开信道
socket.open()
},
closeSocket: function(showSuccessToast) {
if (this.socket) {
this.socket.close()
}
if (showSuccessToast) showSuccess('Socket已断开')
this.setData({ socketStatus: 'closed' })
},
sendMessage: function() {
if (this.socket && this.socket.isActive()) {
this.socket.emit('message', {
'content': 'Hello, 小程序!'
})
this.setData({
loading: true
})
}
},
})