NodeJs 实现简单WebSocket即时通讯的示例代码
服务器的实现很简单,先装一个nodeJs的模块,叫nodejs-websocket , 直接在nodeJs命令行中敲入:npm install nodejs-websocket回车就可以安装好了,然后就可以开始建立服务器了,因为有了nodejs-websocket模块,所以很多工作都不用我们自己做,直接调用别人封装好的方法就行了:
服务端代码
根据客户端传来的消息判断哪个是game1,哪个是game2,保存connection对象。
var ws = require("nodejs-websocket");
console.log("开始建立连接...")
var game1 = null,game2 = null , game1Ready = false , game2Ready = false;
var server = ws.createServer(function(conn){
conn.on("text", function (str) {
console.log("收到的信息为:"+str)
if(str==="game1"){
game1 = conn;
game1Ready = true;
conn.sendText("success");
}
if(str==="game2"){
game2 = conn;
game2Ready = true;
}
if(game1Ready&&game2Ready){
game2.sendText(str);
}
conn.sendText(str)
})
conn.on("close", function (code, reason) {
console.log("关闭连接")
});
conn.on("error", function (code, reason) {
console.log("异常关闭")
});
}).listen(8001)
console.log("WebSocket建立完毕")
【game1代码】:通过点击获取三个框的内容,传到服务器
<!doctype html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Document</title>
<style>
.kuang{text-align: center;margin-top:200px;}
#mess{text-align: center}
.value{width: 200px;height:200px;border:1px solid;text-align: center;line-height: 200px;display: inline-block;}
</style>
</head>
<body>
<div id="mess">正在连接...</div>
<div class="kuang">
<div class="value" id="value1">小明小明</div>
<div class="value" id="value2">大胸大胸</div>
<div class="value" id="value3">小张小张</div>
</div>
<script>
var mess = document.getElementById("mess");
if(window.WebSocket){
var ws = new WebSocket('ws://192.168.17.80:8001');
ws.onopen = function(e){
console.log("连接服务器成功");
ws.send("game1");
}
ws.onclose = function(e){
console.log("服务器关闭");
}
ws.onerror = function(){
console.log("连接出错");
}
ws.onmessage = function(e){
mess.innerHTML = "连接成功"
document.querySelector(".kuang").onclick = function(e){
var time = new Date();
ws.send(time + " game1点击了“" + e.target.innerHTML+"”");
}
}
}
</script>
</body>
</html>
【game2代码】:获取服务推送来的消息,并且显示
<!doctype html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Document</title>
<style>
.kuang{text-align: center;margin-top:200px;}
#mess{text-align: center}
</style>
</head>
<body>
<div id="mess"></div>
<script>
var mess = document.getElementById("mess");
if(window.WebSocket){
var ws = new WebSocket('ws://192.168.17.80:8001');
ws.onopen = function(e){
console.log("连接服务器成功");
ws.send("game2");
}
ws.onclose = function(e){
console.log("服务器关闭");
}
ws.onerror = function(){
console.log("连接出错");
}
ws.onmessage = function(e){
var time = new Date();
mess.innerHTML+=time+"的消息:"+e.data+"<br>"
}
}
</script>
</body>
</html>
运行截图:
以上是 NodeJs 实现简单WebSocket即时通讯的示例代码 的全部内容, 来源链接: utcz.com/z/312492.html