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फेंकता है हमारे पास एक डब्ल्यूसीएफ सेवा है जो क्लाइंट से क्लाइंट स्वीकार करता है (क्लाइंट सर्वर पर फ़ाइल अपलोड कर रहा है)। हालांकि, यदि सर्वर स्ट्रीम के पहले या उसके दौरान एक FaultException फेंकता है तो क्लाइंट केवल अंत तक स्ट्रीमिंग पर चलता है, जिस पर यह सर्वर से FaultException प्राप्त करता है - क्लाइंट के लिए समय & बैंडविड्थ बर्बाद कर रहा है।डब्ल्यूसीएफ - सर्वर से सर्वर से सर्वर को रोक दें यदि सर्वर FaultException
इसी प्रकार के प्रश्न:
How to Abort a WCF File Upload from the Server-Side Method
निम्नलिखित (सरलीकृत WCF सेवा) ले लो
Namespace JP_WCF
<ServiceContract> _
Public Interface IJP_WCF
<OperationContract> _
<FaultContract(GetType(JP_WCF_Fault))> _
Sub UploadFile(request As JP_WCF_FileUpload)
<OperationContract> _
<FaultContract(GetType(JP_WCF_Fault))> _
Function fakeError(ByVal int1 As Integer, ByVal int2 As Integer) As Integer
<OperationContract> _
<FaultContract(GetType(JP_WCF_Fault))> _
Function Ping() As Date
End Interface
<MessageContract> _
Public Class JP_WCF_FileUpload
Implements IDisposable
<MessageHeader(MustUnderstand:=True)> _
Public FileName As String
<MessageHeader(MustUnderstand:=True)> _
Public Length As Long
<MessageBodyMember(Order:=1)> _
Public FileByteStream As System.IO.Stream
Public Sub Dispose() Implements IDisposable.Dispose
If FileByteStream IsNot Nothing Then
FileByteStream.Close()
FileByteStream = Nothing
End If
End Sub
End Class
<DataContract> _
Public Class JP_WCF_Fault
<DataMember> _
Public Property EventID() As Integer
<DataMember> _
Public Property Message() As String
<DataMember> _
Public Property Description() As String
Public Sub New(ByVal _EventID As Integer, ByVal _Message As String, ByVal _Description As String)
Me.EventID = _EventID
Me.Message = _Message
Me.Description = _Description
End Sub
End Class
End Namespace
उदाहरण सर्वर विधि:
Try
Dim sourceStream As Stream = request.FileByteStream
Dim uploadFolder As String = "C:\upload\"
Dim filePath As String = Path.Combine(uploadFolder, request.FileName)
Using targetStream = New FileStream(filePath, FileMode.Create, FileAccess.Write, FileShare.None)
sourceStream.CopyTo(targetStream)
targetStream.Close()
sourceStream.Close()
End Using
Catch ex As Exception
Throw New FaultException(Of JP_WCF_Fault)(New JP_WCF_Fault(8, ex.Message, ex.ToString), ex.Message)
End Try
उदाहरण क्लाइंट विधि:
Dim fileInfo As New System.IO.FileInfo(filePath)
Dim startTime As DateTime = DateTime.Now
Console.WriteLine("Starting V2 upload: " + DateTime.Now.ToString())
Dim JPCS As New JP_WCFService.JP_WCFClient()
Using stream As New System.IO.FileStream(filePath, System.IO.FileMode.Open, System.IO.FileAccess.Read)
Using uploadStreamWithProgress As New JP_StreamWithProgress(stream)
AddHandler uploadStreamWithProgress.ProgressChanged, AddressOf uploadStreamWithProgress_ProgressChanged
Try
JPCS.UploadFile(fileInfo.Name, fileInfo.Length, uploadStreamWithProgress)
Catch ex As FaultException(Of JP_WCFService.JP_WCF_Fault)
Console.WriteLine("Upload Error: " & ex.Detail.Message & " (EventID: " & ex.Detail.EventID.ToString & ")")
End Try
End Using
End Using
Dim endTime As DateTime = DateTime.Now
Dim durationInMS As Double = (endTime - startTime).TotalMilliseconds
Console.WriteLine(vbCr & "V2 Upload Completed: " + DateTime.Now.ToString() + " (" + durationInMS.ToString() + ")")
JPCS.Close()
web.config
<system.serviceModel>
<bindings>
<customBinding>
<binding name="JP_WCFBinding">
<!-- maxReceivedMessageSize 600MB, maxBufferSize 2MB -->
<binaryMessageEncoding compressionFormat="GZip" />
<httpsTransport transferMode="Streamed" maxReceivedMessageSize="629145600" maxBufferSize="2097152"/>
</binding>
</customBinding>
</bindings>
<services>
<service behaviorConfiguration="JP_WCFbehavior" name="JP_WCF.JP_WCFServices">
<endpoint address="" binding="customBinding" bindingConfiguration="JP_WCFBinding" contract="JP_WCF.IJP_WCF"/>
</service>
</services>
<behaviors>
<serviceBehaviors>
<behavior name="JP_WCFbehavior">
<serviceMetadata httpGetEnabled="false" httpsGetEnabled="true" />
<serviceDebug includeExceptionDetailInFaults="true" />
</behavior>
</serviceBehaviors>
</behaviors>
<serviceHostingEnvironment aspNetCompatibilityEnabled="true" multipleSiteBindingsEnabled="true" />
</system.serviceModel>
app.config
<system.serviceModel>
<bindings>
<customBinding>
<binding name="CustomBinding_IJP_WCF">
<binaryMessageEncoding compressionFormat="GZip" />
<httpsTransport transferMode="Streamed" />
</binding>
</customBinding>
</bindings>
<client>
<endpoint address="https://dev-wcf.localhost/JP_WCF.svc"
binding="customBinding" bindingConfiguration="CustomBinding_IJP_WCF"
contract="JP_WCFService.IJP_WCF" name="CustomBinding_IJP_WCF" />
</client>
</system.serviceModel>
मैं सोच रहा हूँ, आप कैसे पता लगा था कि एक अपवाद हुई के बाद स्ट्रीम करने के लिए जारी है? –
इसके अलावा, 'अपलोडस्ट्रीम विथ प्रोग्रेस' के लिए कार्यान्वयन क्या है? –