打印机正在从 Asp.net 开发中打印，而不是从 IIS 中打印

Question

我正在尝试从 asp.net 应用程序打印条码标签到 Zebra 条码标签 printer.I 已经使用 asp.net 代码创建了 .txt 文件并且这些文件在开发过程中打印良好environment.but 发布 IIS 后未打印

我创建了以下代码以使用以下代码编写 .txt 文件


    Using con

                Using dr As SqlDataReader = cmd.ExecuteReader()

                    Using StringWriter
                        StringWriter.WriteLine("CT~~CD,~CC^~CT~")
                        StringWriter.WriteLine("^XA~TA000~JSN^LT0^MNW^MTD^PON^PMN^LH0,0^JMA^PR2,2~SD15^JUS^LRN^CI0^XZ")
                        While dr.Read()
                            Dim linex As String = "^FD>;" & dr.Item("BARCODEVALUE") & "^FS"
                            StringWriter.WriteLine("^XA")
                            StringWriter.WriteLine("^MMT")
                            StringWriter.WriteLine("^PW406")
                            StringWriter.WriteLine("^LL0203")
                            StringWriter.WriteLine("^LS0")
                            StringWriter.WriteLine("^BY3,3,82^FT51,113^BCN,,Y,N")
                            StringWriter.WriteLine(linex)
                            StringWriter.WriteLine("^PQ1,0,1,Y^XZ")
                        End While
                    End Using
                End Using
            End Using

Then below code to print the textfile by calling the cmd shell 

 <pre> Dim proc As New System.Diagnostics.Process
        With proc.StartInfo
            .FileName = "cmd.exe"
            .Arguments = _shellcmd
            .WindowStyle = ProcessWindowStyle.Hidden
        End With

        proc.Start()

其中 _shellcmd 是

Dim shellcommand As String = "/C copy " & barcodefile + " lpt1"

一切正常，正在打印标签，但是当我发布到 IIS 时它正在打印 nothing.I 已将默认池用户添加到服务器系统中连接的打印机

我需要在 Zebra 条码打印机上从 asp.net 应用程序打印标签

Answer 1

如果您的 Zebra 通过打印服务器连接，您可以使用 TcpClient。

using System.IO
using System.Net.Sockets
...

Dim tcpClient As New TcpClient()
tcpClient.Connect(printerIpAddress, printerPortNumber)

Using writer = New StreamWriter(tcpClient.GetStream())
  writer.Write(zplString)
End Using

打印机正在从 Asp.net 开发中打印，而不是从 IIS 中打印

Printer is printing from Asp.net development but not printing from IIS

asp.net

iis-7