Question

我想创建一个网站，以便在我的数据库表中的记录被更改，插入或删除时通知我。所以我启动了一个集线器，注册我的通知监听器（OracleDependency）并更新记录。

var hub = $.connection.oracleNotificationHub;
$("#btnStart").click(function ()
{
    $.connection.hub.start().done(function ()
    {
        $.connection.hub.logging = true;
        hub.server.start();
    })
});

调用hub.server.start后，此代码运行：

using (var con = new OracleConnection(ConfigurationManager.ConnectionStrings["CON"].ConnectionString))
{
    using (OracleCommand cmd = new OracleCommand("select rowid, root from myTable where id = 1", con))
    {
        OracleDependency.Port = 1005;
        dep = new OracleDependency(cmd, false, 10000, true);
        dep.OnChange += new OnChangeEventHandler(OnNotificaton);

        con.Open();
        cmd.ExecuteNonQuery();

        var txn = con.BeginTransaction();
        string updateCmdText = "update myTable set root = concat(root, '_') where id = 1";
        OracleCommand updateCmd = new OracleCommand(updateCmdText, con);
        updateCmd.ExecuteNonQuery();
        txn.Commit();
    }
}

private void OnNotificaton(object src, OracleNotificationEventArgs arg)
{
    DataTable changeDetails = arg.Details;
    OracleNotificationInfo info = (OracleNotificationInfo)changeDetails.Rows[0]["Info"];
    Write(String.Format("{0}: Data has changed in {1}, QueryId: {2}, Rowid: {3}", DateTime.Now.ToString("HH:mm:ss"), changeDetails.Rows[0]["ResourceName"], changeDetails.Rows[0]["QueryId"], changeDetails.Rows[0]["Rowid"]));

    DataChanged = true;
}

此代码适用于控制台应用程序和IIS 8 Express。

我添加了防火墙规则（入站）以允许所有端口1005（TCP）。如果我使用IIS 10运行它，我的应用程序崩溃并且通知事件没有激活。来自事件查看器的日志：

Faulting application name: w3wp.exe, version: 10.0.10240.16384, timestamp: 0x559f3b1e  
Faulting module name: KERNELBASE.dll, version: 10.0.10240.16384, timestamp: 0x559f38c3  
Exception code: 0xe0434352 Fault offset: 0x000000000002a1c8 Faulting process id: 0x1030  
Faulting application start time: 0x01d102e894da28a5  
Faulting application path: c:\windows\system32\inetsrv\w3wp.exe  
Faulting module path:  C:\WINDOWS\system32\KERNELBASE.dll  
Report Id: 1df08a7c-be69-4b68-b2f2-6d4687db5aa9 
Faulting package full name: 
Faulting package-relative application ID:

为什么它不适用于完整的IIS？

为什么SignalR OracleDependency不能与完整的IIS一起使用？

0 个答案: