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<>微信小程序使用websocket
<>连接websocket
let url = `******`//websocket地址 wx.connectSocket({ url: url, success() {
console.log('连接成功') that.initEventHandle() //websocket绑定的各种事件 } })
<>websocket绑定的各种事件
// websocket绑定的各种事件 initEventHandle() { wx.connectSocket(function (res) {
//监听 WebSocket 连接打开事件 console.log('连接打开') }) wx.onSocketMessage(function (res)
{ //监听 WebSocket 接受到服务器的消息事件 //收到消息 console.log(res) that.reset().start(); if
(res.data == "heartOk") { } else { //你自己的数据处理 } }) wx.onSocketError(function
(res) { //监听 WebSocket 错误事件 console.log('WebSocket连接打开失败，请检查！');
console.log(res.code) wx.showToast({ title: '数据更新失败', duration: 2000 })
that.reconnect() }) wx.onSocketClose(function (res) { console.log(res)
console.log('WebSocket 已关闭！' + res.code) }) },
<>断线重连
// 断线重连 reconnect() { if (this.lockReconnect) return; this.lockReconnect =
true; clearTimeout(this.timer) if (this.data.limit < 12) { this.timer =
setTimeout(() => { this.linkSocket(); this.lockReconnect = false; }, 5000);
this.setData({ limit: this.data.limit + 1 }) } },
<>计时发送心跳
reset() { clearTimeout(this.data.timeoutObj); return this; }, start() {
this.data.timeoutObj = setTimeout(() => { console.log("发送heart");
wx.sendSocketMessage({ data: "heart", success() { console.log("发送heart成功"); }
}); }, this.data.timeout); },
<>页面销毁同时关闭websocket
/** * 生命周期函数--监听页面隐藏 */ onHide: function () { wx.closeSocket(); },