基于HTML5的简单的websocket客户端

一个简单的websocket客户端


<html>
<head>
<meta charset="UTF-8">
<title>WebSocket Clienttitle>
head>
<body>
    <script type="text/javascript">
        var socket;
        if (window.WebSocket) {
            socket = new WebSocket("ws://121.40.165.18:8800");
            socket.onmessage = function(event) {
                if(typeof(event.data)=="string"){
                    var ta = document.getElementById('responseText');
                    ta.value = ta.value +'\n'+ event.data
                }else{
                    var reader = new FileReader();  
                    reader.onload = function(event){
                                if(event.target.readyState == FileReader.DONE){
                                    var url = event.target.result;
                        }    
                        document.getElementById('responseText').src=url
                    }
                }
            };
            socket.onopen = function(event) {
                var ta = document.getElementById('responseText');
                ta.value = "contact start";
            };
            socket.onclose = function(event) {
                var ta = document.getElementById('responseText');
                ta.value = ta.value + "contact close";
            };
        } else {
            alert("browse not support WebSocket!");
        }

        function send(message) {
            if (socket.readyState == WebSocket.OPEN) {
                socket.send(message);
                var buffer = new ArrayBuffer(128);
                    socket.send(buffer);

                    var intview = new Uint32Array(buffer);
                    socket.send(intview);

                    var blob = new Blob([buffer]);
                    socket.send(blob);
            } else {
                alert("contact not start");
            }
        }
        function Close(){
            socket.close();
        }
    script>
    <form onsubmit="return false;">
        <h3>My WebSocket Clienth3>
        <textarea id="responseText" style="width: 500px; height: 300px;">textarea>
        <br> 
        <input type="text" name="message"  style="width: 300px" value="I am client">
        <input type="button" value="send" onclick="send(this.form.message.value)">
        <input type="button" value="close" onclick="Close()">
        <input type="button" onclick="javascript:document.getElementById('responseText').value=''" value="clear">
    form>
    <br> 
    <br> 
body>
html>

测试的服务器是在网上找的,下面附上网址[http://www.blue-zero.com/WebSocket/],看不懂的可以去w3cschool上面学习一下HTML5。测试的时候可以直接将代码放到一个文本里面,然后将文本修改成html文件,直接打开就可以了。

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