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index.html
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<!DOCTYPE html>
<html>
<head>
<title>go websocket</title>
<meta charset="utf-8" />
</head>
<body>
<h2>WebSocket Test</h2>
<input type="text" id="input"></input>
<button onclick="sendBtnClick()" >send</button>
<button onclick="closeBtnClick()" >close</button>
<div id="output"></div>
</body>
<script type="text/javascript">
var wsUri ="ws://127.0.0.1:8888/ws";
var output;
function init() {
output = document.getElementById("output");
testWebSocket();
}
function testWebSocket() {
websocket = new WebSocket(wsUri);
websocket.onopen = function(evt) {
onOpen(evt)
};
websocket.onclose = function(evt) {
onClose(evt)
};
websocket.onmessage = function(evt) {
onMessage(evt)
};
websocket.onerror = function(evt) {
onError(evt)
};
}
function onOpen(evt) {
writeToScreen("CONNECTED");
// doSend("WebSocket rocks");
}
function onClose(evt) {
writeToScreen("DISCONNECTED");
}
function onMessage(evt) {
writeToScreen('<span style="color: blue;">RESPONSE: '+ evt.data+'</span>');
// websocket.close();
}
function onError(evt) {
writeToScreen('<span style="color: red;">ERROR:</span> '+ evt.data);
}
function doSend(message) {
writeToScreen("SENT: " + message);
websocket.send(message);
}
function writeToScreen(message) {
var pre = document.createElement("p");
pre.style.wordWrap = "break-word";
pre.innerHTML = message;
output.appendChild(pre);
}
window.addEventListener("load", init, false);
function sendBtnClick(){
var msg = document.getElementById("input").value;
doSend(msg);
document.getElementById("input").value = '';
}
function closeBtnClick(){
websocket.close();
}
</script>
</html>