微信小程序開發——websocket測試

本文轉載自查看原文 2019-12-08 22:13 859

服務端

在windows下執行 node server.js

也可參照我的前一篇部署https

var httpServ = require('http')
var WebSocketServer = require('ws').Server;
var  app = httpServ.createServer().listen(8080);
var ws = new WebSocketServer({
    server: app
});

ws.on('connection', function(wsConnect) {
    wsConnect.on('message', function(message) {
        console.log(message);
        wsConnect.send('reply');
    });
    wsConnect.on('close', function (code, reason) {
        console.log('關閉連接', code, reason)
    });
    wsConnect.on('error', function (code, reason) {
        console.log('異常關閉', code, reason)
    });
})

客戶端

這里介紹兩種客戶端，一種是微信小程序，一種是html網頁。

微信小程序

代碼示例：

xxx.wxml

<button bindtap='startClick'>連接</button>
<button bindtap='sendClick'>發送</button>
<button bindtap='closeClick'>斷開</button>

xxx.js

Page({

  /**
   * 頁面的初始數據
   */
  data: {
    isConnect: null,
  },

  startClick(even) {
    wx.connectSocket({
      url: 'ws://localhost:8080/',
      method: 'GET',
      success: (res) => {
        isConnect: true
        console.log("連接成功", res)
      },
      fail: (res) => {
        isConnect: false
        console.log("連接失敗", res)
      }
    });

    wx.onSocketOpen((res) => {
      console.log('WebSocket連接已打開！')
    });

    wx.onSocketError((res) => {
      console.log('WebSocket連接打開失敗，請檢查！')
    })
  },

  sendClick: function (even) {
    wx.sendSocketMessage({
      data: "From微信小程序 web socket"
    })
  },

  closeClick(even) {
    wx.closeSocket({
      success: (res) => {
        console.log("關閉成功...")
      },
      fail: (res) => {
        console.log("關閉失敗...")
      }
    });
    wx.onSocketClose((res)=>  {
      console.log("WebSocket連接已關閉")
    })
  },

  /**
   * 生命周期函數--監聽頁面加載
   */
  onLoad(options) {
    wx.onSocketMessage((res) => {
      console.log(res.data)
      console.log(res)
    })
  }
})

效果截圖：

網頁

<!doctype html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="initial-scale=1.0, maximum-scale=1.0, user-scalable=no" />
    <meta http-equiv="X-UA-Compatible" content="IE=edge,chrome=1" />
    <title>WebSocket</title>
    <link href="https://cdn.bootcss.com/bootstrap/3.3.7/css/bootstrap-theme.min.css" rel="stylesheet">
    <link href="https://cdn.bootcss.com/bootstrap/3.3.7/css/bootstrap.min.css" rel="stylesheet">
    <style>
        body{
            width: 96%;
            margin-left: 2%;
            margin-top: 20px;
        }
    </style>
</head>
<body>
<div class="btn-group box" role="group" aria-label="...">
    <button type="button" class="btn btn-default">Oppo</button>
    <button type="button" class="btn btn-default">Vivo</button>
    <button type="button" class="btn btn-default">Apple</button>
</div>
<div class="page-header">
    <h4 class="info">服務器返回信息列表:</br></br></h4>
</div>
<script src="https://cdn.bootcss.com/jquery/3.2.1/jquery.js"></script>
<script src="https://cdn.bootcss.com/bootstrap/3.3.7/js/bootstrap.min.js"></script>
<script>
    if (window.WebSocket) {
        var ws = new WebSocket('ws://127.0.0.1:8080');

        ws.onopen = function () {
            console.log('連接服務器成功!');
            ws.send('startting...');
        }
        ws.onclose = function () {
            console.log('服務器關閉');
        }
        ws.onerror = function () {
            console.log("連接出錯");
        }

        ws.onmessage = function (e) {
            document.querySelector(".box").onclick = function (e) {
                ws.send('當前點擊框的內容為:<font style="color:red;" >' + e.target.innerHTML+'</font>');
            }
            $('.info').append(e.data + '</br></br>');
        }
    }
</script>
</body>
</html>

參考鏈接：

1. https://blog.csdn.net/potato512/article/details/79991342

2. https://blog.csdn.net/medivhq/article/details/75021382

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