JavaScript笔记-前端原生态WebSocket的使用- 前端开发

运行截图如下：

输入数据点击发送：

源码如下：


<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>WebSocket</title>
</head>
<body>
    <h1>Echo Test</h1>
    <input id="sendTxt" type="text" />
    <button id="sendBtn">发送</button>
    <div id="recv"></div>
    <script type="text/javascript">
        let websocket = new WebSocket("ws://82.157.123.54:9010/ajaxchattest");
        websocket.onopen = function () {
 
            console.log('websocket open');
            document.getElementById("recv").innerText = "Connected";
        }
 
        websocket.onclose = function () {
 
            console.log('websocket close');
        }
 
        websocket.onmessage = function (ev) {
 
            console.log(ev.data);
            document.getElementById("recv").innerHTML = ev.data;
        }
 
        document.getElementById("sendBtn").onclick = function () {
 
            let txt = document.getElementById("sendTxt").value;
            console.log(txt);
            websocket.send(txt);
        }
 
    </script>
</body>
</html>