​

var ws = new WebSocket("wss://echo.websocket.org");

console.log(ws.readyState);

ws.onopen = function()

{

  console.log("已连接socket！");

  console.log(ws.readyState);

  ws.send("这是发送的消息...");

}

​

​

ws.onmessage = function(evt)

{

  console.log("这是接收的信息:" + evt.data);

  ws.close();//关闭链接

  console.log(ws.readyState);

}

​

​

ws.onclose = function(evt)

{

  console.log("连接已关闭！");

  console.log(ws.readyState);

}

​