c# - 无法建立连接，因为目标机器主动拒绝 127.0.0.1 :8000

Question

我已经创建了 WCF 服务并尝试在托管 Windows 服务中托管(遵循 article)。该服务已启动并在服务中运行。

尝试在客户端应用程序中添加 URL (net.tcp://localhost:8000/UserManagement) 时出现错误:

Metadata contains a reference that cannot be resolved: 'net.tcp://localhost:8000/UserManagement'. Could not connect to net.tcp://localhost:8000/UserManagement. The connection attempt lasted for a time span of 00:00:00.9531433. TCP error code 10061: No connection could be made because the target machine actively refused it 127.0.0.1:8000. No connection could be made because the target machine actively refused it 127.0.0.1:8000 If the service is defined in the current solution, try building the solution and adding the service reference again.

Service.cs

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.ComponentModel;
using System.ServiceModel;
using System.ServiceProcess;
using System.Configuration;
using System.Configuration.Install;

namespace AddUser
{
public class UserManagement : IUserManagement
{

    public bool AddUser(string strName, DateTime dtDOB, string strGender, string strRole)
    {

        return true;
    }
}

[ServiceContract]
public interface IUserManagement
{
    [OperationContract]
    bool AddUser(string strLname,string strFName, string strUname, string strPswd, DateTime dtDOB, string strGender, string strRole, string strHobbies);

}

public class UserManagementService : ServiceBase
{
    public ServiceHost serviceHost = null;
    public UserManagementService()
    {
        ServiceName = "WCFUserManagementService";
    }

    public static void Main()
    {
        ServiceBase.Run(new UserManagementService());
    }

    protected override void OnStart(string[] args)
    {
        if (serviceHost != null)
        {
            serviceHost.Close();
        }                        
        serviceHost = new ServiceHost(typeof(UserManagementService));
        serviceHost.Open();
    }

    protected override void OnStop()
    {
        if (serviceHost != null)
        {
            serviceHost.Close();
            serviceHost = null;
        }
    }
}

[RunInstaller(true)]
public class ProjectInstaller : Installer
{
    private ServiceProcessInstaller process;
    private ServiceInstaller service;

    public ProjectInstaller()
    {
        process = new ServiceProcessInstaller();
        process.Account = ServiceAccount.LocalSystem;
        service = new ServiceInstaller();
        service.ServiceName = "WCFUserManagementService";
        Installers.Add(process);
        Installers.Add(service);
    }
}

}

应用程序配置:

<?xml version="1.0" encoding="utf-8" ?>
<configuration>
<system.serviceModel>
    <services>
        <service behaviorConfiguration="AddUser.UserManagementServiceBehavior" name="AddUser.UserManagement">
        <endpoint address="" binding="netTcpBinding" contract="AddUser.IUserManagement"/>
        <endpoint address="mex" binding="mexTcpBinding" contract="IMetadataExchange" />
        <host>
        <baseAddresses>
        <add baseAddress="net.tcp://localhost:8000/UserManagement" />
        </baseAddresses>
        </host>
        </service>
    </services>
    <behaviors>
        <serviceBehaviors>
            <behavior name="AddUser.UserManagementServiceBehavior">
                <serviceMetadata httpGetEnabled="false"/>
                <serviceDebug includeExceptionDetailInFaults="False"/>
            </behavior>
        </serviceBehaviors>
    </behaviors>
</system.serviceModel>
</configuration>

Answer 1

你需要使用地址

net.tcp://localhost:8000/UserManagement/mex

当您配置服务引用时。

或者，您的元数据端点应使用 mexHttpBinding，并且您应该在服务行为中将 httpGetEnabled 设置为 true

<serviceMetadata httpGetEnabled="true"/>