eos_sicbo
/
chat_ws


			
				
					
						
						
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							<!DOCTYPE html>
<html>
<head>
    <title>Java后端WebSocket的Tomcat实现</title>
　　 <meta content='width=device-width, initial-scale=1, maximum-scale=1, user-scalable=no' name='viewport' />
　　 <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
</head>
<body>
Welcome<br/><input id="text" type="text"/>
<button onclick="send()">发送消息</button>
<hr/>
<button onclick="closeWebSocket()">关闭WebSocket连接</button>
<hr/>
<div id="message"></div>
</body>

<script type="text/javascript">
    var websocket = null;
    //判断当前浏览器是否支持WebSocket
    if ('WebSocket' in window) {
//        websocket = new WebSocket("ws://127.0.0.1:8490?user_id=1&token=6fe83bc7831c3c5b");
        websocket = new WebSocket("ws://test-ws.mee.chat?user_id=1&token=6fe83bc7831c3c5b");
    }
    else {
        alert('当前浏览器 Not support websocket')
    }

    //连接发生错误的回调方法
    websocket.onerror = function (ex) {
        setMessageInnerHTML("WebSocket连接发生错误, ex:" + ex.message);
    };

    //连接成功建立的回调方法
    websocket.onopen = function () {
        setMessageInnerHTML("WebSocket连接成功");
    }

    //接收到消息的回调方法
    websocket.onmessage = function (event) {
        setMessageInnerHTML(event.data);
    }

    //连接关闭的回调方法
    websocket.onclose = function () {
        setMessageInnerHTML("WebSocket连接关闭");
    }

    //监听窗口关闭事件，当窗口关闭时，主动去关闭websocket连接，防止连接还没断开就关闭窗口，server端会抛异常。
    window.onbeforeunload = function () {
        closeWebSocket();
    }

    //将消息显示在网页上
    function setMessageInnerHTML(innerHTML) {
        document.getElementById('message').innerHTML += innerHTML + '<br/>';
    }

    //关闭WebSocket连接
    function closeWebSocket() {
        websocket.close();
    }

    //发送消息
    function send() {
        var message = document.getElementById('text').value;
        websocket.send(message);
    }
</script>
</html>