Как разместить службу WCF в службе Windows?

Question

Я пытаюсь разместить сервлет WCF в управляемой службе Windows. В основном у меня есть 1 решение CustomersWCFLibrary, которое содержит 3 проекта.

1) CustomersWCFLibrary: -

Это моя app.config: -

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

    <configSections> 
    </configSections> 
    <connectionStrings> 
    <add name="CustomersWCFLibrary.Properties.Settings.NorthWindConnectionString" 
     connectionString="Data Source=localhost;Initial Catalog=Northwind;Integrated Security=True" 
     providerName="System.Data.SqlClient" /> 
    </connectionStrings> 
    <system.web> 
    <compilation debug="true" /> 
    </system.web> 
    <!-- When deploying the service library project, the content of the config file must be added to the host's 
    app.config file. System.Configuration does not support config files for libraries. --> 
    <system.serviceModel> 

    <services> 
     <service name="CustomersWCFLibrary.CustomersService" behaviorConfiguration="ServiceBehavior"> 
     <endpoint address="net.tcp://localhost:9000/CustomersService" binding="netTcpBinding" contract="CustomersWCFLibrary.ICustomersService"> 
      <identity> 
      <dns value="localhost" /> 
      </identity> 
     </endpoint> 
     <endpoint address="mex" binding="mexTcpBinding" contract="IMetadataExchange" /> 
     <host> 
      <baseAddresses> 
      <add baseAddress="net.tcp://localhost:9001/" /> 
      </baseAddresses> 
     </host> 
     </service> 
    </services> 
    <behaviors> 
     <serviceBehaviors> 
     <behavior name="ServiceBehavior"> 
      <!-- To avoid disclosing metadata information, 
      set the value below to false and remove the metadata endpoint above before deployment --> 
      <serviceMetadata httpGetEnabled="false"/> 
      <!-- To receive exception details in faults for debugging purposes, 
      set the value below to true. Set to false before deployment 
      to avoid disclosing exception information --> 
      <serviceDebug includeExceptionDetailInFaults="False" /> 
     </behavior> 
     </serviceBehaviors> 
    </behaviors> 
    </system.serviceModel> 

</configuration> 

Мой класс: -

using System; 
using System.Collections.Generic; 
using System.Linq; 
using System.Runtime.Serialization; 
using System.ServiceModel; 
using System.Text; 
using System.Data; 
using System.Data.SqlClient; 
using System.Collections; 

namespace CustomersWCFLibrary 
{ 
    // NOTE: You can use the "Rename" command on the "Refactor" menu to change the class name "Service1" in both code and config file together. 
    public class CustomersService : ICustomersService 
    { 
     public List<Customers> GetAllCustomers() 
     { 
      List<Customers> customersList = new List<Customers>(); 
      using (SqlConnection objSqlConnection = new SqlConnection(Properties.Settings.Default.NorthWindConnectionString)) 
      { 
       objSqlConnection.Open(); 
       SqlCommand objSqlCommand = new SqlCommand("Select CustomerID, ContactName, ContactTitle,CompanyName,Address from Customers",objSqlConnection); 
       SqlDataReader objSqlDataReader = objSqlCommand.ExecuteReader(); 

       while (objSqlDataReader.Read()) 
       { 
        string customerID = objSqlDataReader.GetString(0); 
        string contactName = objSqlDataReader.GetString(1); 
        string contactTitle = objSqlDataReader.GetString(2); 
        string companyName = objSqlDataReader.GetString(3); 
        string Address = objSqlDataReader.GetString(4); 
        Customers objCustomers = new Customers(); 
        objCustomers.CustomerId = customerID; 
        objCustomers.ContactName = contactName; 
        objCustomers.ContactTitle = contactTitle; 
        objCustomers.CompanyName = companyName; 
        objCustomers.Address = Address; 

        customersList.Add(objCustomers); 
       } 
      } 
      return customersList; 
     } 
    } 
} 

Мой контракт: -

using System; 
using System.Collections.Generic; 
using System.Linq; 
using System.Runtime.Serialization; 
using System.ServiceModel; 
using System.Text; 

namespace CustomersWCFLibrary 
{ 
    // NOTE: You can use the "Rename" command on the "Refactor" menu to change the interface name "IService1" in both code and config file together. 
    [ServiceContract] 
    public interface ICustomersService 
    { 
     [OperationContract] 
     List<Customers> GetAllCustomers(); 


     // TODO: Add your service operations here 
    } 

    // Use a data contract as illustrated in the sample below to add composite types to service operations 
    [DataContract] 
    public class Customers 
    { 

     [DataMember] 
     public string CustomerId 
     { get; set; } 

     [DataMember] 
     public string ContactName 
     {get; set;} 

     [DataMember] 
     public string ContactTitle 
     {get; set;} 

     [DataMember] 
     public string CompanyName 
     {get; set;} 

     [DataMember] 
     public string Address 
     {get; set;} 


    } 
} 

2) КлиентыWindowsService

App.config: -

<?xml version="1.0" encoding="utf-8"?> 
<configuration> 
    <system.serviceModel> 
     <services> 
      <service name="CustomersWCFLibrary.CustomersService"> 

       <endpoint address="net.tcp://localhost:9000/CustomersService" 
          binding="netTcpBinding" 
        bindingConfiguration="" name="CustomersService_Tcp" contract="CustomersWCFLibrary.ICustomersService" /> 

      </service> 
     </services> 
    </system.serviceModel> 
</configuration> 

Это мой код окна обслуживания: -

using System; 
using System.Collections.Generic; 
using System.ComponentModel; 
using System.Data; 
using System.Diagnostics; 
using System.Linq; 
using System.ServiceProcess; 
using System.Text; 
using System.ServiceModel; 

namespace CustomersWindowsService 
{ 
    public partial class CustomersServiceWinService : ServiceBase 
    { 

     private ServiceHost host = null; 

     public CustomersServiceWinService() 
     { 
      InitializeComponent(); 
     } 

     protected override void OnStart(string[] args) 
     { 

       host = new ServiceHost(typeof(CustomersWCFLibrary.CustomersService)); 
       host.Open(); 

     } 

     protected override void OnStop() 
     { 
      host.Close(); 
     } 
    } 
} 

3) Моя консольного приложения WCFCustomersTest

App.Config: -

<?xml version="1.0" encoding="utf-8"?> 
<configuration> 
    <system.serviceModel> 
     <bindings /> 
     <client> 
      <endpoint address="net.tcp://localhost:9000/CustomersService" 
       binding="netTcpBinding" bindingConfiguration="" contract="CustomersWCFLibrary.ICustomersService" 
       name="CustomersService_Tcp" kind="" endpointConfiguration="" /> 
     </client> 
    </system.serviceModel> 
</configuration> 

Program.cs

using System; 
using System.Collections.Generic; 
using System.Linq; 
using System.Text; 
using System.ServiceModel; 


namespace WCFCustomersTest 
{ 
    class Program 
    { 
     static void Main(string[] args) 
     { 
      var channel = new ChannelFactory<CustomersWCFLibrary.ICustomersService>("CustomersService_Tcp").CreateChannel(); 
      List<CustomersWCFLibrary.Customers> objList = channel.GetAllCustomers(); 
      Console.Write(objList.Count); 
      Console.Read(); 

     } 
    } 
} 

В моем консольном приложении содержится ссылка на мою WCFClassLibrary (1-й проект).

1) Если я не запускаю свою службу Windows и не запускаю ее в VS 2010, я получаю правильный вывод. Но если я запустил приложение из-за пределов VS, я получаю очень длинное странное исключение.

2) Если я начинаю свою службу Windows и я пытаюсь запустить мое приложение из VS или вне VS я получаю эту ошибку: -

System.ServiceModel.FaultException was unhandled 
    Message=The server was unable to process the request due to an internal error. For more information about the error, either turn on IncludeExceptionDetailInFaults (either from ServiceBehaviorAttribute or from the <serviceDebug> configuration behavior) on the server in order to send the exception information back to the client, or turn on tracing as per the Microsoft .NET Framework 3.0 SDK documentation and inspect the server trace logs. 
    Source=mscorlib 
    Action=http://schemas.microsoft.com/net/2005/12/windowscommunicationfoundation/dispatcher/fault 
    StackTrace: 
    Server stack trace: 
     at System.ServiceModel.Channels.ServiceChannel.ThrowIfFaultUnderstood(Message reply, MessageFault fault, String action, MessageVersion version, FaultConverter faultConverter) 
     at System.ServiceModel.Channels.ServiceChannel.HandleReply(ProxyOperationRuntime operation, ProxyRpc& rpc) 
     at System.ServiceModel.Channels.ServiceChannel.Call(String action, Boolean oneway, ProxyOperationRuntime operation, Object[] ins, Object[] outs, TimeSpan timeout) 
     at System.ServiceModel.Channels.ServiceChannelProxy.InvokeService(IMethodCallMessage methodCall, ProxyOperationRuntime operation) 
     at System.ServiceModel.Channels.ServiceChannelProxy.Invoke(IMessage message) 
    Exception rethrown at [0]: 
     at System.Runtime.Remoting.Proxies.RealProxy.HandleReturnMessage(IMessage reqMsg, IMessage retMsg) 
     at System.Runtime.Remoting.Proxies.RealProxy.PrivateInvoke(MessageData& msgData, Int32 type) 
     at CustomersWCFLibrary.ICustomersService.GetAllCustomers() 
     at WCFCustomersTest.Program.Main(String[] args) in C:\Users\abc\documents\visual studio 2010\Projects\CustomersWCFLibrary\WCFCustomersTest\Program.cs:line 15 
     at System.AppDomain._nExecuteAssembly(RuntimeAssembly assembly, String[] args) 
     at System.AppDomain.ExecuteAssembly(String assemblyFile, Evidence assemblySecurity, String[] args) 
     at Microsoft.VisualStudio.HostingProcess.HostProc.RunUsersAssembly() 
     at System.Threading.ThreadHelper.ThreadStart_Context(Object state) 
     at System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state, Boolean ignoreSyncCtx) 
     at System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state) 
     at System.Threading.ThreadHelper.ThreadStart() 
    InnerException: 

Я пытаюсь решить эту ошибку начиная с 3-х часов без какого-либо успех.

Заранее спасибо :)

Answer 1

Я хотел бы предложить две вещи troubleshoting вопрос,

1. Включить includeExceptionDetailInFaults, чтобы получить более подробную информацию о реакции.
2. Включите трассировку WCF, поскольку вы, вероятно, найдете более подробную информацию в трассировке.

Я могу помочь больше, если я могу увидеть более подробную информацию об ошибке. Эта ошибка, которую вы опубликовали там, является общей.

Спасибо, Пабло.

Answer 2

Tun на исключениях Подробности здесь: < serviceDebug includeExceptionDetailInFaults = «True»/>

или отлаживать приезжающие запрос на управляемом стороне окна обслуживания, чтобы увидеть, что ошибка происходит там.