小程序scoket使用

本文主要是介绍小程序scoket使用，希望对大家解决编程问题提供一定的参考价值，需要的开发者们随着小编来一起学习吧！

var app = getApp();
var socketOpen = false;
var frameBuffer_Data, session, SocketTask;
var url = 'ws://请填写您的长链接接口地址';
var upload_url ='请填写您的图片上传接口地址'
Page({data: {user_input_text: '',//用户输入文字inputValue: '',returnValue: '',addImg: false,//格式示例数据，可为空allContentList: [],num: 0},// 页面加载onLoad: function () {this.bottom();},onShow: function (e) {if (!socketOpen) {this.webSocket()}},// 页面加载完成onReady: function () {var that = this;SocketTask.onOpen(res => {socketOpen = true;console.log('监听 WebSocket 连接打开事件。', res)})SocketTask.onClose(onClose => {console.log('监听 WebSocket 连接关闭事件。', onClose)socketOpen = false;this.webSocket()})SocketTask.onError(onError => {console.log('监听 WebSocket 错误。错误信息', onError)socketOpen = false})SocketTask.onMessage(onMessage => {console.log('监听WebSocket接受到服务器的消息事件。服务器返回的消息', JSON.parse(onMessage.data))var onMessage_data = JSON.parse(onMessage.data)if (onMessage_data.cmd == 1) {that.setData({link_list: text})console.log(text, text instanceof Array)// 是否为数组if (text instanceof Array) {for (var i = 0; i < text.length; i++) {text[i]}} else {}that.data.allContentList.push({ is_ai: true, text: onMessage_data.body });that.setData({allContentList: that.data.allContentList})that.bottom()}})},webSocket: function () {// 创建SocketSocketTask = wx.connectSocket({url: url,data: 'data',header: {'content-type': 'application/json'},method: 'post',success: function (res) {console.log('WebSocket连接创建', res)},fail: function (err) {wx.showToast({title: '网络异常！',})console.log(err)},})},// 提交文字submitTo: function (e) {let that = this;var data = {body: that.data.inputValue,}if (socketOpen) {// 如果打开了socket就发送数据给服务器sendSocketMessage(data)this.data.allContentList.push({ is_my: { text: this.data.inputValue }});this.setData({allContentList: this.data.allContentList,inputValue: ''})that.bottom()}},bindKeyInput: function (e) {this.setData({inputValue: e.detail.value})},onHide: function () {SocketTask.close(function (close) {console.log('关闭 WebSocket 连接。', close)})},upimg: function () {var that = this;wx.chooseImage({sizeType: ['original', 'compressed'],success: function (res) {that.setData({img: res.tempFilePaths})wx.uploadFile({url: upload_url,filePath: res.tempFilePaths,name: 'img',success: function (res) {console.log(res)wx.showToast({title: '图片发送成功！',duration: 3000});}})  that.data.allContentList.push({ is_my: { img: res.tempFilePaths } });that.setData({allContentList: that.data.allContentList,})that.bottom();}})},   addImg: function () {this.setData({addImg: !this.data.addImg})},// 获取hei的id节点然后屏幕焦点调转到这个节点  bottom: function () {var that = this;this.setData({scrollTop: 1000000})},
})//通过 WebSocket 连接发送数据，需要先 wx.connectSocket，并在 wx.onSocketOpen 回调之后才能发送。
function sendSocketMessage(msg) {var that = this;console.log('通过 WebSocket 连接发送数据', JSON.stringify(msg))SocketTask.send({data: JSON.stringify(msg)}, function (res) {console.log('已发送', res)})
} 

原文链接：https://blog.csdn.net/qq_35713752/article/details/80811397

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