出于某种原因,我无法将 Visual Studio 2010 调试器附加到使用 WCF 服务库的服务中,我从这里开始遵循 MSDN 教程。当我安装并运行该服务时,它工作得很好,并且我可以从客户端 GUI 访问所有内容,但是当我尝试将调试器附加到服务时,我得到以下 WCF 服务主机窗口,该窗口弹出一个错误:
System.ServiceModel.AddressAlreadyInUseException: There is already a listener on IP endpoint 0.0.0.0:8000. Make sure that you are not trying to use this endpoint multiple times in your application and that there are no other applications listening on this endpoint. ---> System.Net.Sockets.SocketException: Only one usage of each socket address (protocol/network address/port) is normally permitted
at System.Net.Sockets.Socket.DoBind(EndPoint endPointSnapshot, SocketAddress socketAddress)
at System.Net.Sockets.Socket.Bind(EndPoint localEP)
at System.ServiceModel.Channels.SocketConnectionListener.Listen()
--- End of inner exception stack trace ---
at System.ServiceModel.Channels.SocketConnectionListener.Listen()
at System.ServiceModel.Channels.ConnectionAcceptor.StartAccepting()
at System.ServiceModel.Channels.ExclusiveTcpTransportManager.OnOpen()
at System.ServiceModel.Channels.TransportManager.Open(TransportChannelListener channelListener)
at System.ServiceModel.Channels.TransportManagerContainer.Open(SelectTransportManagersCallback selectTransportManagerCallback)
at System.ServiceModel.Channels.TcpChannelListener`2.OnOpen(TimeSpan timeout)
at System.ServiceModel.Channels.CommunicationObject.Open(TimeSpan timeout)
at System.ServiceModel.Dispatcher.ChannelDispatcher.OnOpen(TimeSpan timeout)
at System.ServiceModel.Channels.CommunicationObject.Open(TimeSpan timeout)
at System.ServiceModel.ServiceHostBase.OnOpen(TimeSpan timeout)
at System.ServiceModel.Channels.CommunicationObject.Open(TimeSpan timeout)
at Microsoft.Tools.SvcHost.ServiceHostHelper.OpenService(ServiceInfo info)
System.Net.Sockets.SocketException (0x80004005): Only one usage of each socket address (protocol/network address/port) is normally permitted
at System.Net.Sockets.Socket.DoBind(EndPoint endPointSnapshot, SocketAddress socketAddress)
at System.Net.Sockets.Socket.Bind(EndPoint localEP)
at System.ServiceModel.Channels.SocketConnectionListener.Listen()
该问题发生在OnStart()
服务函数中的 myServiceHost.open() 上,如下所示:
public partial class ORAS : ServiceBase
{
System.Timers.Timer aTimer;
OWcfServiceLibrary.OService ORAS = new OService();
internal static ServiceHost myServiceHost = null;
public ORAS()
{
InitializeComponent();
}
protected override void OnStart(string[] args)
{
System.Diagnostics.Debugger.Launch();
aTimer = new System.Timers.Timer(60000);//every minute
aTimer.AutoReset = true;
aTimer.Elapsed += new System.Timers.ElapsedEventHandler(aTimer_Has_Alarm);
aTimer.Enabled = true;
if (myServiceHost != null)
{
myServiceHost.Close();
}
myServiceHost = new ServiceHost(typeof(OrionService));
myServiceHost.Open();
}