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websocket html5 客户端测试代码

2016-12-13 23:08 330 查看

测试 websocket 客户端的连接、发送消息和断开，生成一个面板用于显示 log，代码功能单一，便于测试。

index.html

<html>
<head>
<meta charset="utf-8">
<title>WebSoket Demo</title>
<script type="text/JavaScript">
// tips: WebSocket 调试脚本
var WebSocket = WebSocket || window.WebSocket || window.MozWebSocket;
// 验证浏览器是否支持WebSocket协议
if (!WebSocket) {
alert("WebSocket not supported by this browser!");
}
else {
var g_ws = null;

function Display() {
// 载入上次记录的数据 //...
console.log("websocket 测试");
}

var log = function (s) {
if (document.readyState !== "complete") {
log.buffer.push(s);
} else {
document.getElementById("contentId").value += (s + "\n");
}
}

function CreateConnect () {
var msg = document.getElementById("wsUrlId");
console.log("CreateConnect(), url: " + msg.value);
if (g_ws == null) {
var wsUrlValue = msg.value;

try {
g_ws = new WebSocket(wsUrlValue);
// 监听消息
g_ws.onmessage = function (event) {
//valueLabel.innerHTML+ = event.data;
log("onmessage(), 接收到服务器消息: " + event.data);
};
// 打开 WebSocket
g_ws.onclose = function (event) {
//WebSocket Status:: Socket Closed
log("onclose(), Socket 已关闭!");
g_ws = null;
};
// 打开WebSocket
g_ws.onopen = function (event) {
//WebSocket Status:: Socket Open
// 发送一个初始化消息
// g_ws.send("Hello, Server!");
log("onopen(), Socket 连接成功!");
};
g_ws.onerror = function (event) {
//WebSocket Status:: Error was reported
log("onerror(), Socket 发生错误!");
};
}
catch (e) {
g_ws = null;
log("连接异常, 重置 websocket");
}
}
}

function SendMsg() {
var msg = document.getElementById("messageId");
console.log("SendMsg(), msg: " + msg.value);
if (g_ws != null) {
//alert(msg.value);
log("发送 Socket 消息: " + msg.value);
g_ws.send(msg.value);
}
else {
log("Socket 还未创建!, msg: " + msg.value);
}
}

function CloseConnect () {
console.log("CloseConnect()");
if (g_ws != null) {
g_ws.close();
}
}
}
</script>
</head>

<body onload="Display()">
<div id="valueLabel"></div>
<textarea rows="20" cols="30" id="contentId"></textarea>
<br/>
<input name="wsUrl" id="wsUrlId" value="ws://localhost:8082/springmvc/websocket"/>
<button id="createButton" onClick="javascript:CreateConnect()">Create</button>
<button id="closeButton" onClick="javascript:CloseConnect()">Close</button>
<br/>
<input name="message" id="messageId" value="Hello, Server!"/>
<button id="sendButton" onClick="javascript:SendMsg()">Send</button>
</body>
</html>

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标签： websocket html

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