B4J Question [B4J] connection is closed

jinyistudio

Well-Known Member
Licensed User
Longtime User
Hi

My app is ok tomorrow. now it isn't OK. B4J running is OK. When i connect to server from browser,It always give me a message "connection is closed". following picture. The WebSocket connected and disconnected immediately. Why ...?

index.png

nn1.png

B4X:
'WebSocket class
Sub Class_Globals
    Private ws As WebSocket
    Private message1 As JQueryElement
    Private nav_side_container As JQueryElement
    Private timer1 As Timer
End Sub

Public Sub Initialize
    Log("index init")
    timer1.Initialize("timer1",1000) 
End Sub

Sub MessageBox(Titles,msgs As String)
    ' $('#myModal').modal({show:true});
    'title1.SetText(Titles)
    'message1.SetText(msgs)
    'ws.RunFunction("messagebox",Null)
    'ws.Flush
End Sub

private Sub timer1_tick
 
End Sub

Private Sub navi_click(Params As Map)
    If Params.Size<1 Then Return
    Log("navi click")
    For n1=0 To Params.Size-1
        Log("key:"&Params.GetKeyAt(n1)&",value:"&Params.GetValueAt(n1))
    Next
    Dim url As String
    Dim page As String=Params.Get("name")
    If page="param1" Then
        url="../param-db/index.html"
    else if page="param2" Then
        url="../param-msg/index.html"
    else if page="param3" Then
        url="../param-plc/index.html"
    else if page="param4" Then
        url="../param-oth/index.html"
    else if page="param5" Then
        url="../param-day/index.html"
    else if page="param6" Then
        url="../param-mon/index.html"
    else if page="dashboard" Then
        url="../monitor/index.html"
    else if page="report1" Then
        url="../report/index.html"
    else if page="report2" Then
        url="../chart/index.html"
    else if page="report3" Then
        url="../history/index.html"
    End If
    nav_side_container.SetHtml(WebUtils.Html2div(url))
    ws.Flush
End Sub

Sub WebSocket_Connected (WebSocket1 As WebSocket)
    ws = WebSocket1
    Log("Index connected") 
    timer1.Enabled=True
End Sub

Sub WebSocket_Disconnected
    timer1.Enabled=False
    Log("Index disconnected")
End Sub
' <a href="javascript:ShowOld(2367,146986,2)"><img title="next page" alt="next page" src="/themes/me/img/arrn.png"></a>
' <a href="javascript:void(0);" onclick="ShowOld(2367,146986,2);">
' <a href="javascript:ShowOld(2367,146986,2);">

B4X:
<!DOCTYPE html>
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
    <title>Index</title> 
    <meta HTTP-EQUIV="Content-Type" CONTENT="text/html; charset=big5">
    <!-- -->
    <link rel="stylesheet" type="text/css" href="../js/font-awesome/css/font-awesome.min.css" />
    <link rel="stylesheet" type="text/css" href="../js/bs/css/bootstrap.min.css" /> 
    <link rel="stylesheet" type="text/css" href="../js/bs/css/bootstrap-theme.min.css" /> 
    <link href="../js/bs3-layout.css" rel="stylesheet">
    <script src="../js/jquery.js"></script>
    <script src="../js/bs/js/bootstrap.min.js"></script>
    <link rel="stylesheet" type="text/css"  href="../js/navi-menu.css" />
 
    <link rel="stylesheet" type="text/css"  href="../js/jys.css" />
    <script src="../js/jys.js"></script>
    <script src="../js/b4j_ws.js"></script>
</head>

<body>
    <div class="nav-side-menu">
        <div class="brand">Brand Logo</div>
            <i class="fa fa-bars fa-2x toggle-btn" data-toggle="collapse" data-target="#menu-content"></i>
            <div class="menu-list">
                <ul id="menu-content" class="menu-content collapse out">
                    <li>
                        <a href="javascript:navi_click('dashboard')">
                        <i class="fa fa-dashboard fa-lg"></i> 儀表板/Dashboard</a>
                    </li>
                    <li  data-toggle="collapse" data-target="#products" class="collapsed">
                        <a href="#"><i class="fa fa-gift fa-lg"></i> 報表/Report<span class="arrow"></span></a>
                    </li>
                    <ul class="sub-menu collapse" id="products">
                        <li><a href="javascript:navi_click('report1')"> 文表日報查詢</a></li>
                        <li><a href="javascript:navi_click('report2')"> 圖表日報查詢</a></li>
                        <li><a href="javascript:navi_click('report3')"> 異常日報查詢</a></li>
                    </ul>
                    <li data-toggle="collapse" data-target="#service" class="collapsed">
                        <a href="#"><i class="fa fa-globe fa-lg"></i> 參數/Parameter<span class="arrow"></span></a>
                    </li>
                    <ul class="sub-menu collapse" id="service">
                        <li><a href="javascript:navi_click('param1')">資料庫</a></li>
                        <li><a href="javascript:navi_click('param2')">訊息發送</a></li>
                        <li><a href="javascript:navi_click('param3')">可程式控制器(PLC)</a></li>
                        <li><a href="javascript:navi_click('param5')">日報表</a></li>
                        <li><a href="javascript:navi_click('param6')">月報表</a></li>
                        <li><a href="javascript:navi_click('param4')">其他</a></li>
                    </ul>                          
                    <li>
                        <i class="fa fa-users fa-lg"></i> 有關/About</a>
                    </li>
                </ul>
            </div>     
        </div>
        <!-- dialog -->
        <div class="modal" id="myModal">
            <div class="modal-dialog">
                <div class="modal-content">
                    <div class="modal-header">
                        <button type="button" class="close" data-dismiss="modal" aria-hidden="true">X</button>
                        <h4 class="modal-title">訊 息</h4>
                    </div>
                    <div id="message1" class="modal-body">
                        Content for the dialog / modal goes here.
                    </div>                 
                </div>
            </div>
        </div>
    </div> 
    <!-- container-->
 
    <!-- Script -->
    <script>
        $(document).ready(function() {      
            b4j_connect("/ws");             
        });
    </script>
</body>
</html>
 

jinyistudio

Well-Known Member
Licensed User
Longtime User
Hi

The client has reconnecting but I get other message ! Your example is too !

q1.png q2.png q3.png
 
Last edited:
Upvote 0

jinyistudio

Well-Known Member
Licensed User
Longtime User
Hi
I try to connect with others computer.
I have four computer(one win8.1,three win7)
WIN8.1 it is OK but Two WIN7(32bits) isn't OK, One WIN7(64bits) is OK. o_Oo_Oo_Oo_Oo_Oo_Oo_Oo_Oo_O
 

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Last edited:
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jinyistudio

Well-Known Member
Licensed User
Longtime User
Oh,NODE32. How are you doing ? You filtering my websocket. :mad::mad::mad::mad::mad::mad::mad::mad::mad::mad::mad::mad::mad::mad::mad::mad::mad::mad::mad:
 
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