<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>websocket通讯</title>
</head>
<script src="https://cdn.bootcss.com/jquery/3.3.1/jquery.js"></script>
<script>
var socket;
function openSocket() {
if (typeof (WebSocket) == "undefined") {
console.log("您的浏览器不支持WebSocket");
} else {
console.log("您的浏览器支持WebSocket");
//实现化WebSocket对象，指定要连接的服务器地址与端口 建立连接
//等同于socket = new WebSocket("ws://localhost:8888/xxxx/im/25");
//var socketUrl="${request.contextPath}/im/"+$("#userId").val();
var socketUrl = "http://localhost:9825/ws/" + $("#userId").val();
socketUrl = socketUrl.replace("https", "ws").replace("http", "ws");
console.log(socketUrl);
if (socket != null) {
socket.close();
socket = null;
}
socket = new WebSocket(socketUrl);
//打开事件
socket.onopen = function () {
console.log("websocket已打开");
//socket.send("这是来自客户端的消息" + location.href + new Date());
};
//获得消息事件
socket.onmessage = function (msg) {
console.log(msg.data);
//发现消息进入 开始处理前端触发逻辑
};
//关闭事件
socket.onclose = function () {
console.log("websocket已关闭");
};
//发生了错误事件
socket.onerror = function () {
console.log("websocket发生了错误");
}
}
}
function sendMessage() {
if (typeof (WebSocket) == "undefined") {
console.log("您的浏览器不支持WebSocket");
} else {
console.log("您的浏览器支持WebSocket");
console.log('{"toUserId":"' + $("#toUserId").val() + '","contentText":"' + $("#contentText").val() + '"}');
socket.send('{"toUserId":"' + $("#toUserId").val() + '","contentText":"' + $("#contentText").val() + '"}');
}
}
</script>
<body>
<p>【userId】：
<div><input id="userId" name="userId" type="text" value="10"></div>
<p>【toUserId】：
<div><input id="toUserId" name="toUserId" type="text" value="20"></div>
<p>【toUserId】：
<div><input id="contentText" name="contentText" type="text" value="hello websocket"></div>
<p>【操作】：
<div><a onclick="openSocket()">开启socket</a></div>
<p>【操作】：
<div><a onclick="sendMessage()">发送消息</a></div>
</body>
</html>