我在 stackoverflow 上搜索了很多已经发布的答案，但到目前为止，没有一个解决方案没有解决我的问题。那是研究和故障排除的第二天，没有结果，所以我要寻求其他人的帮助。我正在开发一个 WPF 数据库应用程序，我想在 WPF 应用程序和数据库之间添加一个中间层 (WCF)。
WCF 服务有两个服务合同，都启用了自定义用户名/密码身份验证（也需要会话）。第一个服务合同 (IAppUserService) 将服务于将由本地用户运行的 WPF 应用程序，第二个服务合同将服务于客户可访问的网站 (IAppClientService)。
我已经包含了以下源代码：
DCMAppService.svc.cs
using System;
using System.Collections.Generic;
using System.Runtime.Serialization;
using System.ServiceModel;
using System.ServiceModel.Description;
using System.Text;
using System.Data.SqlClient;
using System.Data;
using System.Configuration;
using System.IdentityModel.Selectors;
using MySql.Data.MySqlClient;
using DCMAppService.classes;
namespace DCMAppService
{
[ServiceBehavior(InstanceContextMode = InstanceContextMode.PerSession)]
public class AppClientService : IAppClientService
{
public bool Login(string userName, string password)
{
// TODO:
return true;
}
public bool Logout()
{
// TODO:
return true;
}
}
[ServiceBehavior(InstanceContextMode = InstanceContextMode.PerSession)]
public class AppUserService : IAppUserService
{
private User currentUser;
#region User functions
public User Login(string userName, string password)
{
// Does Login here...
}
public bool Logout()
{
// Does logout here...
}
public bool isLoggedIn()
{
return (currentUser != null);
}
public User AddUser(string firstName, string lastName, string userName, string password, ushort status)
{
// Implements business logic...
}
public bool UpdateUser(uint id, string firstName, string lastName, string userName, string password, ushort status)
{
// Implements business logic...
}
public bool DeleteUser(uint id)
{
// Implements business logic...
}
public List<User> GetUsersList()
{
// Implements business logic...
}
#endregion
#region Client functions
public Client AddClient(string title, bool allowWebAccess, string userName, string password)
{
// Implements business logic...
}
public bool UpdateClient(uint id, string title, bool allowWebAccess, string userName, string password)
{
// Implements business logic...
}
public bool DeleteClient(uint id)
{
// Implements business logic...
}
public List<Client> GetClientsList()
{
// Implements business logic...
}
#endregion
}
public class CustomUserNameValidator : UserNamePasswordValidator
{
public override void Validate(string userName, string password)
{
if (userName == null || password == null)
throw new ArgumentNullException();
// Custom login implementation
// TODO:
int ret = 1;
if (ret != 1)
throw new FaultException("Invalid username or password", new FaultCode("AuthError"));
}
}
}
服务的接口文件包含以下内容：
IDCMAppService.cs
using System;
using System.Collections.Generic;
using System.Runtime.Serialization;
using System.ServiceModel;
using System.Text;
namespace DCMAppService
{
[ServiceContract(SessionMode = SessionMode.Required)]
public interface IAppClientService
{
[OperationContract(IsInitiating = true, IsTerminating = false)]
bool Login(string userName, string password);
[OperationContract(IsInitiating = false, IsTerminating = true)]
bool Logout();
}
[ServiceContract(SessionMode = SessionMode.Required)]
public interface IAppUserService
{
[OperationContract]
bool HealthCheck();
#region User functions
[OperationContract(IsInitiating = true, IsTerminating = false)]
User Login(string userName, string password);
[OperationContract(IsInitiating = false, IsTerminating = true)]
bool Logout();
[OperationContract(IsInitiating = false)]
User AddUser(string firstName, string lastName, string userName, string password, ushort status);
[OperationContract(IsInitiating = false)]
bool UpdateUser(uint id, string firstName, string lastName, string userName, string password, ushort status);
[OperationContract(IsInitiating = false)]
bool DeleteUser(uint id);
[OperationContract(IsInitiating = false)]
List<User> GetUsersList();
#endregion
#region Client functions
[OperationContract(IsInitiating = false)]
Client AddClient(string title, bool allowWebAccess, string userName, string password);
[OperationContract(IsInitiating = false)]
bool UpdateClient(uint id, string title, bool allowWebAccess, string userName, string password);
[OperationContract(IsInitiating = false)]
bool DeleteClient(uint id);
[OperationContract(IsInitiating = false)]
List<Client> GetClientsList();
#endregion
}
}
请注意，它包含WCF 必须服务的两种不同的服务协定（一种用于用户，另一种用于客户端）。
Web.config 文件包含以下内容：
<?xml version="1.0"?>
<configuration>
<appSettings/>
<connectionStrings>
<add name="DCMConnectionString" connectionString="Server=127.0.0.1;Database=xxxxxx;Uid=xxxxxx;Pwd=xxxxxx;" providerName="System.Data.EntityClient"/>
</connectionStrings>
<system.web>
<compilation debug="true" targetFramework="4.0">
</compilation>
<!--
The <authentication> section enables configuration
of the security authentication mode used by
ASP.NET to identify an incoming user.
-->
<authentication mode="Windows"/>
<!--
The <customErrors> section enables configuration
of what to do if/when an unhandled error occurs
during the execution of a request. Specifically,
it enables developers to configure html error pages
to be displayed in place of a error stack trace.
<customErrors mode="RemoteOnly" defaultRedirect="GenericErrorPage.htm">
<error statusCode="403" redirect="NoAccess.htm" />
<error statusCode="404" redirect="FileNotFound.htm" />
</customErrors>
-->
<pages controlRenderingCompatibilityVersion="3.5" clientIDMode="AutoID"/>
</system.web>
<system.serviceModel>
<protocolMapping>
<remove scheme="http" />
<add scheme="http" binding="wsHttpBinding" />
</protocolMapping>
<bindings>
<wsHttpBinding>
<binding name="DCMAppBindingWSConfig" receiveTimeout="03:00:00"
sendTimeout="03:00:00">
<reliableSession inactivityTimeout="01:00:00" enabled="true" />
<security mode="Message">
<message clientCredentialType="UserName" />
</security>
</binding>
</wsHttpBinding>
<mexHttpBinding>
<binding name="DCMAppBindingMexConfig" receiveTimeout="00:10:00"
sendTimeout="00:10:00" />
</mexHttpBinding>
</bindings>
<services>
<service behaviorConfiguration="DCMAppService.AppServiceBehavior"
name="DCMAppService.AppUserService">
<endpoint address="" binding="wsHttpBinding" name="wsBinding"
contract="DCMAppService.IAppUserService">
<identity>
<dns value="localhost" />
</identity>
</endpoint>
<endpoint address="mex" binding="mexHttpBinding" bindingConfiguration="DCMAppBindingMexConfig"
name="mexBinding" contract="IMetadataExchange" />
</service>
</services>
<behaviors>
<serviceBehaviors>
<behavior name="DCMAppService.AppServiceBehavior">
<serviceMetadata httpGetEnabled="true" httpsGetEnabled="true" />
<serviceDebug includeExceptionDetailInFaults="true" />
<serviceCredentials>
<userNameAuthentication userNamePasswordValidationMode="Custom" customUserNamePasswordValidatorType="DCMAppService.CustomUserNameValidator, DCMAppService" />
</serviceCredentials>
</behavior>
</serviceBehaviors>
</behaviors>
<serviceHostingEnvironment multipleSiteBindingsEnabled="true" />
</system.serviceModel>
</configuration>
我得到的响应是带有经典消息的错误页面：
此服务的元数据发布当前已禁用。
这很烦人，因为我找不到任何解决方法。
任何帮助将不胜感激。