websocket 测试

npm install -g wscat

wscat -l 8888

wscat -c ws://127.0.0.1:8888 

 

?

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const WebSocket = require('ws');   const ws = new WebSocket.Server({port: 8777});   ws.on('connection', function connection(ws) {   setInterval(() => {     const random = Math.floor(Math.random() * Math.floor(100));     // 返回给 amis 的数据     const data = {       random     };     // 发送前需要转成字符串     ws.send(JSON.stringify(data));   }, 500); });

npm i ws　

npm start