如何解决"该ChannelDispatcher无法打开其IChannelListener"错误？ [英] How to solve "The ChannelDispatcher is unable to open its IChannelListener" error?
问题描述
我想传达的Windows服务和我服务的GUI之间WCF主持。问题是，当我试图执行OperationContract的方法，我收到
的ChannelDispatcher在
'的net.tcp ：//本地主机：7771 /为MyService
合同（S）'IContract'是
无法打开其IChannelListener
$ b $。 b
我app.conf看起来像：
<结构>
< system.serviceModel>
<&绑定GT;
<&NetTcpBinding的GT;
<绑定名称=NetTcpBinding的>
<安全>
<运输的ProtectionLevel =EncryptAndSign/>
< /安全>
< /&结合GT;
< / NetTcpBinding的>
< /绑定>
<&行为GT;
< serviceBehaviors>
<行为NAME =MyServiceBehavior>
< serviceMetadata httpGetEnabled =真httpGetUrl =HTTP：//本地主机：7772 /为MyService/>
< serviceDebug includeExceptionDetailInFaults =真/>
< /行为>
< / serviceBehaviors>
< /行为>
<服务和GT;
<服务behaviorConfiguration =MyServiceBehavior
NAME =MyService.Service>
<端点地址=的net.tcp：//本地主机：7771 /为MyService绑定=NetTcpBinding的
bindingConfiguration =NetTcpBinding的NAME =netTcp合同=MyService.IContract/> ;
< /服务>
< /服务>
< /system.serviceModel>
端口7771是听（检查用netstat）和SvcUtil工具能够产生CONFIGS我。
任何建议，将不胜感激。
堆栈异常跟踪
服务器堆栈跟踪：
。在系统.ServiceModel.Channels.ServiceChannel.ThrowIfFaultUnderstood（消息回复，MessageFault故障，串动，MessageVersion版本，faultConverter faultConverter）
在System.ServiceModel.Channels.ServiceChannel.HandleReply（ProxyOperationRuntime操作，ProxyRpc&安培; RPC）
在System.ServiceModel.Channels.ServiceChannel.Call（字符串操作，布尔单向，ProxyOperationRuntime操作，对象[]项，对象[]奏，时间跨度超时）
在System.ServiceModel.Channels.ServiceChannel.Call（串动，布尔单向，ProxyOperationRuntime操作，对象[]项，对象[]奏）
在System.ServiceModel.Channels.ServiceChannelProxy.InvokeService（IMethodCallMessage methodCall，ProxyOperationRuntime操作）
在System.ServiceModel.Channels.ServiceChannelProxy .Invoke（即时聊天消息）
有一个内部exeption（但不Exeption.InnerExeption下，但在Exeption.Detail.InnerExeption - ToString（）方法不显示）
一个注册已经存在URI的net.tcp：//本地主机：7771 /为MyService。
不过，我的服务只在app.config文件无处指定此URI。在整个解决方案此URI apears服务器一次，客户一旦
解决方案我解决了它：D
下面是问题的explanaition：
首先不好的代码：
命名空间WCFServer
{
公共类节目：IWCFService
{
私人ServiceHost的主机;
静态无效的主要（字串[] args）
{
新计划（）;
}
公共计划（）
{
主机=新的ServiceHost（typeof运算（计划））;
host.Open（）;
Console.WriteLine（服务器开始吧！）;
Console.ReadKey（）;
}
＃地区IWCFService会员
公众诠释CheckHealth（INT ID）
{
回报（1）;
}
#endregion
}
}
正如你所看到的服务合同是在类中实现托管服务。这引起了整个事情的错误（也许typeof运算（）运行一个构造函数，我不知道我愿意在这个问题上有建设性的意见）。
好码
命名空间WCFServer
{
公共类节目
{
私人的ServiceHost主办;
静态无效的主要（字串[] args）
{
新计划（）;
}
公共计划（）
{
主机=新的ServiceHost（typeof运算（WCF））;
host.Open（）;
Console.WriteLine（服务器开始吧！）;
Console.ReadKey（）;
}
}
公共类WCF：IWCFService
{
＃地区IWCFService会员
公众诠释CheckHealth（中间体ID）
{
返回（1）;
}
#endregion
}
}
服务合同的两个文件：
[的ServiceContract]
公共接口IWCFService
{
〔OperationContract的]
INT CheckHealth（INT ID）;
}
App.config中
<结构>
< system.serviceModel>
<&行为GT;
< serviceBehaviors>
<行为NAME =WCFBehavior/>
< / serviceBehaviors>
< /行为>
<&绑定GT;
<&NetTcpBinding的GT;
<绑定名称=tcpBinding>
<安全>
<运输及GT;
< extendedProtectionPolicy policyEnforcement =从不/>
< /运输及GT;
< /安全>
< /&结合GT;
< / NetTcpBinding的>
< /绑定>
<服务和GT;
<服务名称=WCFServer.WCF>
<端点地址=的net.tcp：//本地主机：1111 / TcpIHostMonitor绑定=NetTcpBinding的
bindingConfiguration =tcpBindingNAME =netTcpEndpoint合同=WCFServer.IWCFService/> ;
< /服务>
< /服务>
< /system.serviceModel>
I'm trying to communicate between WCF hosted in Windows Service and my service GUI. The problem is when I'm trying to execute OperationContract method I'm getting
"The ChannelDispatcher at 'net.tcp://localhost:7771/MyService' with contract(s) '"IContract"' is unable to open its IChannelListener."
My app.conf looks like that:
<configuration> <system.serviceModel> <bindings> <netTcpBinding> <binding name="netTcpBinding"> <security> <transport protectionLevel="EncryptAndSign" /> </security> </binding> </netTcpBinding> </bindings> <behaviors> <serviceBehaviors> <behavior name="MyServiceBehavior"> <serviceMetadata httpGetEnabled="true" httpGetUrl="http://localhost:7772/MyService" /> <serviceDebug includeExceptionDetailInFaults="true" /> </behavior> </serviceBehaviors> </behaviors> <services> <service behaviorConfiguration="MyServiceBehavior" name="MyService.Service"> <endpoint address="net.tcp://localhost:7771/MyService" binding="netTcpBinding" bindingConfiguration="netTcpBinding" name="netTcp" contract="MyService.IContract" /> </service> </services> </system.serviceModel>Port 7771 is listening (checked using netstat) and svcutil is able to generate configs for me.
Any suggestions would be appreciated.
Stack trace from exception
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.ServiceChannel.Call(String action, Boolean oneway, ProxyOperationRuntime operation, Object[] ins, Object[] outs) at System.ServiceModel.Channels.ServiceChannelProxy.InvokeService(IMethodCallMessage methodCall, ProxyOperationRuntime operation) at System.ServiceModel.Channels.ServiceChannelProxy.Invoke(IMessage message)
There's one inner exeption (but not under Exeption.InnerExeption but under Exeption.Detail.InnerExeption - ToString() method doesn't show that)
A registration already exists for URI 'net.tcp://localhost:7771/MyService'.
But my service have specified this URI only in app.config file nowhere else. In entire solution this URI apears in server once and client once.
解决方案I solved it :D
Here's the explanaition of the problem:
First BAD code:
namespace WCFServer { public class Program : IWCFService { private ServiceHost host; static void Main(string[] args) { new Program(); } public Program() { host = new ServiceHost(typeof(Program)); host.Open(); Console.WriteLine("Server Started!"); Console.ReadKey(); } #region IWCFService Members public int CheckHealth(int id) { return (1); } #endregion } }As you can see the service contract is implemented in class hosting the service. This caused the whole error thing (maybe typeof() runs a constructor, i don't know I'm open to constructive input in this matter).
The GOOD code:
namespace WCFServer { public class Program { private ServiceHost host; static void Main(string[] args) { new Program(); } public Program() { host = new ServiceHost(typeof(WCF)); host.Open(); Console.WriteLine("Server Started!"); Console.ReadKey(); } } public class WCF : IWCFService { #region IWCFService Members public int CheckHealth(int id) { return (1); } #endregion } }Service Contract for both files:
[ServiceContract] public interface IWCFService { [OperationContract] int CheckHealth(int id); }App.config
<configuration> <system.serviceModel> <behaviors> <serviceBehaviors> <behavior name="WCFBehavior" /> </serviceBehaviors> </behaviors> <bindings> <netTcpBinding> <binding name="tcpBinding"> <security> <transport> <extendedProtectionPolicy policyEnforcement="Never" /> </transport> </security> </binding> </netTcpBinding> </bindings> <services> <service name="WCFServer.WCF"> <endpoint address="net.tcp://localhost:1111/TcpIHostMonitor" binding="netTcpBinding" bindingConfiguration="tcpBinding" name="netTcpEndpoint" contract="WCFServer.IWCFService" /> </service> </services> </system.serviceModel>这篇关于如何解决"该ChannelDispatcher无法打开其IChannelListener"错误？的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！
