如何防止 .NET 中多个方法之间的 WebRequest 冲突？

Question

我是新来的，所以请多多包涵。很高兴澄清是否有 questions/clarification.

在我所有的进程中，我都有通过 WebRequest 的 LogHandler 方法，它基本上存储了用户调用的进程，并且它作为线程运行，因此现有进程不会减慢速度。

我有另一个名为 StatusCheckX 的方法，它基本上执行另一个 WebRequest 并检查是否存在所需数据并使用数据执行特定任务。

我面临的问题 是来自 StatusCheckX 的 WebRequest 和 LogHandler 似乎在另一个上 conflicting/waiting 并停止响应并最终超时。我该如何克服这个问题。

感谢 help/advice。阿里.

Public Function Important_Method1() As Boolean

    Dim VariableX As Boolean = True

    Try
        'do something
        'do something
        
        Call LogHandler()
        
        If VariableX = True Then
            If StatusCheckX() = False Then
                Return False
            Else
                Return True
            End If
        End If

        

        Return True

    Catch ex As Exception
        Return False

    End Try


End Function

Public Function Important_Method2() As Boolean

    Dim VariableX As Boolean = True

    Try
        'do something
        'do something
        
        Call LogHandler()
        
        If VariableX = True Then
            If StatusCheckX() = False Then
                Return False
            Else
                Return True
            End If
        End If

        Return True

    Catch ex As Exception
        Return False

    End Try


End Function


Private Function LogHandler() As Boolean

    Dim T1 As Thread
    T1 = New Thread(AddressOf WriteLogX)
    T1.Start()

    Return True

End Function

Private Function WriteLogX() As Boolean
    Dim url As String = "www.xyz.com"
    Try
        Dim Req As WebRequest = WebRequest.Create(url)
        Dim Res As HttpWebResponse = CType(Req.GetResponse(), HttpWebResponse)

        If Res.StatusDescription = "ALL GOOD" Then
            Return True
        Else
            Return False
        End If

        Res.Close()
        Res.Dispose()

    Catch ex As Exception
        Return False
    End Try

End Function

Private Function StatusCheckX() As Boolean
    Try

        'do something
        'do something
        'do something

        Dim Req As WebRequest = WebRequest.Create("www.ijk.com")
        Dim Res As HttpWebResponse = CType(Req.GetResponse(), HttpWebResponse)

        If Res.StatusDescription = "OK" Then
            Dim ResStream As System.IO.Stream = Res.GetResponseStream()
            Dim SReader As System.IO.StreamReader = New System.IO.StreamReader(ResStream)
            Dim i As String = SReader.ReadToEnd()
            Dim dict = JsonConvert.DeserializeObject(Of Dictionary(Of String, String))(i)

            SReader.Close()
            SReader.Dispose()

            ResStream.Close()
            ResStream.Dispose()

            If dict.Values(0) = "OK PROCEED" Then
                'do something
                Return True
            Else
                'do something
                Return False
            End If

        Else
            Return False

        End If

        Res.Close()
        Res.Dispose()

    Catch ex As Exception
        Return False

    End Try

End Function

Answer 1

如果它对任何人有帮助，我最终将它移到了新的 class 并且错误消失了。

如何防止 .NET 中多个方法之间的 WebRequest 冲突？

How to prevent WebRequest Conflicts between Multi Methods in .NET?

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