test-demo/js/index-test.js

 // 站点工况（websocket实时推送）


 var arrData = [];
 var wsUri = "wss://iot.usky.cn:55120";
 var websocket;


 function initWebSocket() {
     return new Promise((res, rej) => {
         try {
             if (typeof MozWebSocket == 'function')
                 WebSocket = MozWebSocket;
             websocket = new WebSocket(wsUri);
             websocket.onopen = function(evt) {
                 var json = {};
                 json.agentid = 'admin';
                 console.log("Connected.");
                 (function() {})()
                 console.log('websocket')
                 console.log(websocket)
                 websocket.send(JSON.stringify(json));
             };
             websocket.onclose = function(evt) {
                 console.log("DisConnected.");
                 (function() {})()
                 //  initWebSocket();
                 console.log(1111111)
             };
             websocket.onmessage = function(evt) {
                 var siteData = eval('(' + evt.data + ')');
                 console.log('siteData')
                 console.log(siteData)
                     //  console.log('arrData')
                     //  console.log(arrData)

                 //返回值渲染
                 if (siteData.time) {
                     $('.receive-time').text('[' + siteData.time + ' 收到]')
                     $(".receive-request").text(JSON.stringify(siteData, null, 2));
                 }
             };

             websocket.onerror = function(evt) {
                 console.log("Error:", evt.data);
                 (function() {})()
             };
             res()
         } catch (exception) {
             console.log("Exception:", exception);
             rej()
         }
     })
 }


 //打开websocket
 //  $('.openWebsocket').on('click', function() {
 //      initWebSocket();
 //  })
 //  initWebSocket()

 function isWs(val) {
     if (!websocket) {
         initWebSocket().then(() => { isWs(val) })
     } else if (websocket.readyState == 1) {
         websocket.send(val)
     } else {
         setTimeout(() => {
             isWs(val)
         }, 1000)
     }
 }

 //站点工况点击
 $('.siteCondition').on('click', function() {
     var stationId = $('#stationId').val()
     var stationName = $('#stationName').val()
     var json = {};
     json.CMD = 'getStationInfo';
     json.StationID = stationId;
     json.StationName = stationName;

     //发送时间和请求参数页面渲染
     time('.send-time');
     $(".send-request").text(JSON.stringify(json, null, 2));
     if (websocket) {
         websocket.close();
         websocket = '';
     }
     isWs(JSON.stringify(json))
 })