一、多对多聊天
WebSocket是一种支持双向通信的网络技术,它解决了HTTP协议的单向通信问题。在实际应用中,多对多聊天是WebSocket的一个常见应用场景。
以下是一个简单的多对多聊天的代码示例:
// 客户端代码 var socket = new WebSocket("ws://localhost:8080"); socket.onopen = function() { console.log("连接成功。"); } socket.onmessage = function(event) { console.log("接收到消息:" + event.data); } document.getElementById("sendButton").addEventListener("click", function() { var messageInput = document.getElementById("messageInput"); socket.send(messageInput.value); messageInput.value = ""; }); // 服务端代码 var WebSocketServer = require("ws").Server; var wss = new WebSocketServer({ port: 8080 }); wss.on("connection", function(socket) { console.log("有新的客户端连接。"); socket.on("message", function(message) { console.log("接收到消息:" + message); wss.clients.forEach(function(client) { client.send(message); }); }); });
上面的代码中,客户端通过WebSocket连接服务端,当客户端发送消息时,服务端会将消息广播给所有连接的客户端。
二、Webservice教程
WebSocket与传统的HTTP通信有所不同。WebSocket是一种独立于HTTP协议的协议,它需要在WebSocket服务器上运行WebSocket协议的软件。在实际应用中,我们可以使用Webservice来实现WebSocket通信,Webservice是一个较为常见的软件。
以下是一个基于Webservice的简单WebSocket代码示例:
// 客户端代码 var socket = new WebSocket("ws://localhost:8080"); socket.onopen = function() { console.log("连接成功。"); } socket.onmessage = function(event) { console.log("接收到消息:" + event.data); } document.getElementById("sendButton").addEventListener("click", function() { var messageInput = document.getElementById("messageInput"); socket.send(messageInput.value); messageInput.value = ""; }); // 服务端代码 var WebSocketServer = require("ws").Server; var http = require("http"); var express = require("express"); var app = express(); var server = http.createServer(app); var wss = new WebSocketServer({ server }); app.use(express.static("public")); wss.on("connection", function(socket) { console.log("有新的客户端连接。"); socket.on("message", function(message) { console.log("接收到消息:" + message); wss.clients.forEach(function(client) { client.send(message); }); }); }); server.listen(8080, function() { console.log("服务器已经启动。"); });
三、易语言WebSocket教程
易语言是一种编程语言,它可以很方便地与WebSocket通信进行集成。
以下是一个基于易语言的简单WebSocket代码示例:
' 客户端代码 Dim WebSocket As New WebSocket("ws://localhost:8080") WebSocket.OnOpen = Sub() FeiQSend "连接成功。" End Sub WebSocket.OnMessage = Sub(Message As String) FeiQSend "接收到消息:" + Message End Sub Function FeiQSend(Message As String) As Integer ' 向飞鸽传书发送消息 End Function Function SendButton_Click() As Integer Dim MessageInput As String MessageInput = GetDlgItemText(FORM1, IDC_EDIT1) WebSocket.Send MessageInput SetDlgItemText FORM1, IDC_EDIT1, "" End Function ' 服务端代码 Dim WebSocketServer As New WebSocketServer(8080) WebSocketServer.OnConnection = Sub(Socket As WebSocket) FeiQSend "有新的客户端连接。" End Sub WebSocketServer.OnMessage = Sub(Socket As WebSocket, Message As String) FeiQSend "接收到消息:" + Message WebSocketServer.SendAll Message End Sub Function FeiQSend(Message As String) As Integer ' 向飞鸽传书发送消息 End Function
四、宝塔WebSocket教程
宝塔是一种常见的服务器管理软件。在宝塔上部署WebSocket服务器非常简单。
以下是一个基于宝塔的简单WebSocket代码示例:
// 客户端代码 var socket = new WebSocket("ws://example.com:8080"); socket.onopen = function() { console.log("连接成功。"); } socket.onmessage = function(event) { console.log("接收到消息:" + event.data); } document.getElementById("sendButton").addEventListener("click", function() { var messageInput = document.getElementById("messageInput"); socket.send(messageInput.value); messageInput.value = ""; }); // 服务端代码 var WebSocketServer = require("ws").Server; var wss = new WebSocketServer({ port: 8080 }); wss.on("connection", function(socket) { console.log("有新的客户端连接。"); socket.on("message", function(message) { console.log("接收到消息:" + message); wss.clients.forEach(function(client) { client.send(message); }); }); });
五、易语言编写WebSocket教程
易语言虽然不支持WebSocket,但我们可以通过编写一个WebSocket服务器的中间件,来实现在易语言中与WebSocket通信。
以下是一个基于中间件的简单WebSocket服务器代码示例:
' 客户端代码 Dim WebSocket As New WebSocket("ws://localhost:8080") WebSocket.OnOpen = Sub() FeiQSend "连接成功。" End Sub WebSocket.OnMessage = Sub(Message As String) FeiQSend "接收到消息:" + Message End Sub Function FeiQSend(Message As String) As Integer ' 向飞鸽传书发送消息 End Function Function SendButton_Click() As Integer Dim MessageInput As String MessageInput = GetDlgItemText(FORM1, IDC_EDIT1) WebSocket.Send MessageInput SetDlgItemText FORM1, IDC_EDIT1, "" End Function ' 服务端代码 Redim Clients(0) Listen 8080, "WebSocketMiddleware.dll", "WebSocketMiddleware" Sub WebSocketMiddleware(ClientID As Integer, Message As String) If ClientID = -1 Then ' 新的客户端连接 Clients(Ubound(Clients) + 1) = ClientID Exit Sub End If FeiQSend "接收到消息:" + Message For i = 1 to Ubound(Clients) If Clients(i) <> ClientID Then SendMessage Clients(i), Message End If Next End Sub Function FeiQSend(Message As String) As Integer ' 向飞鸽传书发送消息 End Function
六、WebSocket菜鸟教程
WebSocket有很多细节和注意点,初学者可以先参考菜鸟教程。
以下是一篇基础的WebSocket教程:
<script> var socket = new WebSocket("ws://localhost:8080"); socket.onopen = function() { console.log("连接成功。"); } socket.onmessage = function(event) { console.log("接收到消息:" + event.data); } function sendMessage() { var messageInput = document.getElementById("messageInput"); socket.send(messageInput.value); messageInput.value = ""; } </script> <input id="messageInput">