websocket客户端实现
<!DOCTYPE html> <html> <head> <meta charset="utf-8"> <title></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"> var websocket = new WebSocket("ws://echo.websocket.org/"); websocket.onopen = function(){ console.log('websocket open'); document.getElementById('recv').innerHTML = "Connected"; } websocket.onclose = function(){ console.log('websocket close'); } websocket.onmessage = function(e){ console.log('e.data'); document.getElementById('recv').innerHTML = e.data; } document.getElementById("sendBtn").onclick = function(){ var txt = document.getElementById("sendTxt").value; websocket.send(txt); } </script> </body> </html>