无法将用户控制添加到现有 WCF 服务

Question

我开发了一个 WCF 服务，效果很好。但是，此服务不提供任何用户控制，我现在正在尝试添加此功能。

你可以找到 WCF 类：

Public Class WCF_ServicioWeb
    Implements IWCF_ServicioWeb

    Public Sub New()
    End Sub

    Public Function HelloWorld() As String Implements IWCF_ServicioWeb.HelloWorld
        Return My.Resources.CONST_HELLO_WORLD
    End Function

    Public Function EnviarFichero(ByVal composite As CompositeType) As Integer Implements IWCF_ServicioWeb.EnviarFichero
            'Do some ooperations.
            Return 0
    End Function

End Class

操作合同：

<ServiceContract()>
Public Interface IWCF_ServicioWeb

    <OperationContract()>
    Function HelloWorld() As String

    <OperationContract()>
    Function EnviarFichero(ByVal composite As CompositeType) As Integer

End Interface


<DataContract()>
Public Class CompositeType

    <DataMember()>
    Public Property nombreFichero() As String

    <DataMember()>
    Public Property lugarAdq() As String

    <DataMember()>
    Public Property sCadenaDeTexto() As String

End Class

现在您可以使用 web.config 文件了：

<?xml version="1.0" encoding="utf-8"?>
<configuration>

  <configSections>
    <sectionGroup name="applicationSettings" type="System.Configuration.ApplicationSettingsGroup, System, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089" >
      <section name="WCF_ServicioWeb.My.MySettings" type="System.Configuration.ClientSettingsSection, System, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089" requirePermission="false" />
    </sectionGroup>
  </configSections>
  <system.web>
    <compilation debug="true" strict="false" explicit="true" targetFramework="4.0" />
  </system.web>
  <system.serviceModel>
    <bindings>
      <basicHttpBinding>
        <binding maxBufferPoolSize="2147483647" maxBufferSize="2147483647" maxReceivedMessageSize="2147483647" messageEncoding="Text">
          <readerQuotas maxDepth="2000000" maxStringContentLength="2147483647" maxArrayLength="2147483647" maxBytesPerRead="2147483647" maxNameTableCharCount="2147483647" />
        </binding>
      </basicHttpBinding>
    </bindings>
    <behaviors>
      <serviceBehaviors>
        <behavior>
          <serviceMetadata httpGetEnabled="true"/>
          <serviceDebug includeExceptionDetailInFaults="false"/>
        </behavior>
      </serviceBehaviors>
    </behaviors>
    <serviceHostingEnvironment multipleSiteBindingsEnabled="true" />
  </system.serviceModel>
  <system.webServer>
    <modules runAllManagedModulesForAllRequests="true"/>
  </system.webServer>
</configuration>

在网上看了一下，发现为了引入用户控件，类：

Imports System
Imports System.ServiceModel
Imports System.IdentityModel.Tokens
Imports System.IdentityModel.Selectors
Imports System.Security.Principal

Public Class CustomUserNameValidator
    Inherits UserNamePasswordValidator
    Public Overrides Sub Validate(ByVal userName As String, ByVal password As String)
        If ((userName = "user") And (password = "password")) Then
            'passed
        Else
            Throw New FaultException("Invalid credentials")
        End If
    End Sub
End Class

但是，我收到一个错误，因为类 UserNamePasswordValidator、lib Imports System.IdentityModel.Selectors 和 lib Imports System.IdentityModel。找不到令牌。我正在使用 vb.net (VS2010) 和 NET Framework 4.0。 任何人都知道为什么会发生这种情况？ 我检查了可以从 lib System.ServiceModel.Security.Tokens 而不是 System.IdentityModel.Tokens 导入令牌，但我还没有找到如何导入选择器。

而且，一旦这个类可以正确地添加到项目中，我必须如何继续在 WCF 上引入用户控件？为此，我应该对 web.config 文件进行哪些修改？

提前致谢！

Answer 1

确保您已为所有类和方法定义了正确的 Contract，

<OperationContract()>

http://msdn.microsoft.com/en-us/library/bb386386.aspx?cs-save-lang=1&cs-lang=vb#code-snippet-1

这是 VB.NET 中 WCF 的最佳方法，希望对您有所帮助，

http://www.aspnettutorials.com/tutorials/advanced/introduction-to-wcf-vb/