無法使用JavaScript建立WebSocket連接

Question

這用於熱敏打印，當我運行應用程序時，它在控制台中顯示以下錯誤：

jquery.websocket.js：45未捕獲的DOMException：無法在“ WebSocket”上執行“發送”：仍處於CONNECTING狀態。

碼：

 <script type="text/javascript">
     function connect() {
         debugger;
         var ws = new WebSocket("wss://192.168.1.23:9100");
         ws.onopen = function () {
             alert("About to send data");
             ws.send("Hello World"); // I WANT TO SEND THIS MESSAGE TO THE SERVER!!!!!!!!
             alert("Message sent!");
         };

         ws.onmessage = function (evt) {
             alert("About to receive data");
             var received_msg = evt.data;
             alert("Message received = " + received_msg);
         };
         ws.onclose = function () {
             // websocket is closed.
             alert("Connection is closed...");
         };
     };


</script>

Answer 1

經過您的代碼測試，似乎可以正常工作。能否從您的側面通過'wss：//echo.websocket.org'網址進行檢查？ 我已引用https://www.websocket.org/echo.html網址。 下面是相同的代碼

<!DOCTYPE html>
<html>
    <head>
        <title>To test web socket</title>
        <script type="text/javascript">
            function connect() {
                debugger;
                var ws = new WebSocket("wss://echo.websocket.org");
                ws.onopen = function () {
                    alert("About to send data");
                    ws.send("Hello World"); // I WANT TO SEND THIS MESSAGE TO THE SERVER!!!!!!!!
                    alert("Message sent!");
                };

                ws.onmessage = function (evt) {
                   alert("About to receive data");
                   var received_msg = evt.data;
                   alert("Message received = " + received_msg);
                };
                ws.onclose = function () {
                    // websocket is closed.
                   alert("Connection is closed...");
                };
            };
        </script>
    </head>
    <body>
       <button onclick="connect()">Connect</button>
    </body>
</html>

無法使用JavaScript建立WebSocket連接

問題描述

1 個解決方案

解決方案1
0 2018-12-26 13:06:17

無法使用JavaScript建立WebSocket連接

問題描述

1 個解決方案

解決方案1 0 2018-12-26 13:06:17

解決方案1
0 2018-12-26 13:06:17