template/__test__/websocket/websocket.js

var WebSocketServer = require('ws').Server,
    wss = new WebSocketServer({ port: 9999 });
wss.on('connection', function (ws) {
    console.log('client connected');
    ws.on('message', function (message) {
        console.log(message);
        ws.send("服务端接收到请求后，发送给客户端的数据");
    });

    var i = 1;
    setInterval(function () {
        i++;
        ws.send(JSON.stringify(
            {
                payload:{
                  message:{
                    "id":i,
                    "appName": "qwer",
                    "text": "我是一条推送测试"+i,
                    "type": "数据指挥",
                    "level":1,
                    "compnent":1,
                    "time": 1622972899706,
                    "title":"张三",
                    "reply":1,
                    "extra":{
                        "text":"这是一条附加信息"
                    }
                  },
                  msgType:"SILENT_APP",//NONTIFY_APP 打开对应的App  SILENT_APP 框架处理消息
                  appId:"widget_demo_3"
                },
                type:"message"
            }      
        ))

    }, 5000)

})