Vincent Tsao's Library tagged "web sockets" → View Popular, Search in Google

Dec

2009

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从Google Chrome的developer channel释放的4.0.249.0版本开始，Web Sockets已经可用并默认开启了。Web Sockets是“网络的TCP”，它是Web Applications 1.0中下一代网络应用程序双向通信技术标准的一部分
与XMLHttpRequest截然不同的的是，Web Sockets在你的浏览器里面提供一个真正的双向沟通渠道，一旦得到Web Socket连接，你就能通过直接调用send()方法从浏览器发送数据到服务器，并且使用onmessage的这个事件处理句柄接收数据
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- if ("WebSocket" in window) { var ws = new WebSocket("ws://example.com/service"); ws.onopen = function() { // Web Socket is connected. You can send data by send() method. ws.send("message to send"); .... }; ws.onmessage = function (evt) { var received_msg = evt.data; ... }; ws.onclose = function() { // websocket is closed. }; } else { // the browser doesn't support WebSocket. }