Asp.Net動的呼び出しWebService

Public Class WebServiceHelper



#Region "InvokeWebService"

    '    web  

    Public Shared Function InvokeWebService(ByVal url As String, ByVal methodname As String, ByVal args As Object()) As Object

        Return WebServiceHelper.InvokeWebService(url, Nothing, methodname, args)

    End Function



    Public Shared Function InvokeWebService(ByVal url As String, ByVal classname As String, ByVal methodname As String, ByVal args As Object()) As Object

        Dim [namespace] As String = "EnterpriseServerBase.WebService.DynamicWebCalling"

        If (classname Is Nothing) OrElse (classname = "") Then

            classname = WebServiceHelper.GetWsClassName(url.ToLower.Replace("?wsdl", ""))

        End If



        Try

            If url.ToLower.IndexOf("?wsdl") = -1 Then

                url &= "?wsdl"

            End If



            '  WSDL

            Dim wc As New WebClient()

            Dim stream As Stream = wc.OpenRead(url)

            Dim sd As ServiceDescription = ServiceDescription.Read(stream)

            Dim sdi As New ServiceDescriptionImporter()

            sdi.AddServiceDescription(sd, "", "")

            Dim cn As New CodeNamespace([namespace])



            '          

            Dim ccu As New CodeCompileUnit()

            ccu.Namespaces.Add(cn)

            sdi.Import(cn, ccu)



            '      

            Dim cplist As New CompilerParameters()

            cplist.GenerateExecutable = False

            cplist.GenerateInMemory = True

            cplist.ReferencedAssemblies.Add("System.dll")

            cplist.ReferencedAssemblies.Add("System.XML.dll")

            cplist.ReferencedAssemblies.Add("System.Web.Services.dll")

            cplist.ReferencedAssemblies.Add("System.Data.dll")



            '     

            Dim vbc As New VBCodeProvider

            Dim cr As CompilerResults = vbc.CompileAssemblyFromDom(cplist, ccu)

            If True = cr.Errors.HasErrors Then

                Dim sb As New System.Text.StringBuilder()

                For Each ce As System.CodeDom.Compiler.CompilerError In cr.Errors

                    sb.Append(ce.ToString())

                    sb.Append(System.Environment.NewLine)

                Next

                Throw New Exception(sb.ToString())

            End If



            '      ，     

            Dim assembly As System.Reflection.Assembly = cr.CompiledAssembly

            Dim t As Type = assembly.[GetType]([namespace] & "." & classname, True, True)

            Dim obj As Object = Activator.CreateInstance(t)

            Dim mi As System.Reflection.MethodInfo = t.GetMethod(methodname)



            Return mi.Invoke(obj, args)

        Catch ex As Exception

            Throw New Exception(ex.InnerException.Message, New Exception(ex.InnerException.StackTrace))

        End Try

    End Function

#End Region



    Private Shared Function GetWsClassName(ByVal wsUrl As String) As String

        Dim parts As String() = wsUrl.Split("/"c)

        Dim pps As String() = parts(parts.Length - 1).Split("."c)



        Return pps(0)

    End Function

End Class

    Public Function SyncResume(ByVal ResumeID As Integer) As String

        Dim sResult As String = ""



        Dim url As String = "http://www.webservicex.net/globalweather.asmx"

        Dim args As Object() = New Object() {"beijing","China"}



        sResult = WebServiceHelper.InvokeWebService(url, "GetWeather", args)



        Return sResult

    End Function