我正在使用wcf编写服务。 我已经创建了一个包含两个项目的解决方案：
我还写了一个客户端来调用该服务。这将被称为客户端应用程序。
我有服务。以下是界面和实现（库项目）：
namespace EchoWcfLibrary {
/// <summary>
/// The interface specifies for those classes implementing it (services), the operation that the service will expose.
/// </summary>
[ServiceContract]
public interface IService1 {
// This does not use serialization (implicit serialization in considered: base types used).
[OperationContract]
string GetData(int value);
// This uses data contracts and serialization.
[OperationContract]
CompositeType GetDataUsingDataContract(CompositeType composite);
}
[DataContract]
public class CompositeType {
// Members not serialized
bool boolValue = true;
string stringValue = "Hello ";
// Serialized
[DataMember]
public bool BoolValue {
get { return boolValue; }
set { boolValue = value; }
}
// Serialized
[DataMember]
public string StringValue {
get { return stringValue; }
set { stringValue = value; }
}
}
}
以下是服务主机应用程序（可执行项目）的启动：
namespace WcfServiceApplication {
public static class Program {
static void Main(string[] args) {
// Setting endpoints and setting the service to start properly.
// Base address specified: http://localhost:8081/Service1
Console.WriteLine("Beginning...");
using (ServiceHost host = new ServiceHost(typeof(Service1), new Uri("http://localhost:8081/Service1"))) {
Console.WriteLine("Opening host...");
host.Open();
Console.WriteLine("Waiting...");
System.Threading.Thread.Sleep(1000000);
Console.WriteLine("Closing...");
host.Close();
Console.WriteLine("Quitting...");
}
}
}
}
以下是可执行项目（托管应用程序）中的App.config：
<?xml version="1.0" encoding="utf-8" ?>
<configuration>
<!-- 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="WcfServiceLibrary.Service1">
<host>
<baseAddresses>
<add baseAddress="http://localhost:8081/Service1" />
</baseAddresses>
</host>
<!-- Service Endpoints -->
<!-- Unless fully qualified, address is relative to base address supplied above -->
<endpoint address="/GoInto/Svc"
binding="basicHttpBinding"
contract="WcfServiceLibrary.IService1">
<!--
Upon deployment, the following identity element should be removed or replaced to reflect the
identity under which the deployed service runs. If removed, WCF will infer an appropriate identity
automatically.
-->
<identity>
<dns value="localhost"/>
</identity>
</endpoint>
<endpoint address="/GoInto/Sav"
binding="basicHttpBinding"
contract="WcfServiceLibrary.IService1">
<!--
Upon deployment, the following identity element should be removed or replaced to reflect the
identity under which the deployed service runs. If removed, WCF will infer an appropriate identity
automatically.
-->
<identity>
<dns value="localhost"/>
</identity>
</endpoint>
<!-- Metadata Endpoints -->
<!-- The Metadata Exchange endpoint is used by the service to describe itself to clients. -->
<!-- This endpoint does not use a secure binding and should be secured or removed before deployment -->
<endpoint address="GoInto/Mex" binding="mexHttpBinding" contract="IMetadataExchange"/>
</service>
</services>
<behaviors>
<serviceBehaviors>
<behavior>
<!-- To avoid disclosing metadata information,
set the value below to false and remove the metadata endpoint above before deployment -->
<serviceMetadata httpGetEnabled="True"/>
<!-- 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>
以下是客户端可执行项目中的程序启动（已经建立了库项目的链接），基本上这是客户端：
namespace WcfServiceClient {
class Program {
static void Main(string[] args) {
ServiceEndpoint httpEndpoint = new ServiceEndpoint(ContractDescription.GetContract(typeof(IService1)), new BasicHttpBinding(), new EndpointAddress("http://localhost:8081/Service1"));
ChannelFactory<IService1> channelFactory = new ChannelFactory<IService1>(httpEndpoint);
IService1 svc = channelFactory.CreateChannel();
Console.WriteLine(svc.GetData(121));
System.Threading.Thread.Sleep(10000);
}
}
}
嗯......我的问题如下：这个应用程序工作!!!
为什么这是一个问题？
问题是我在托管服务时在App.config文件中指定了三个端点：两个basicHttp和一个元数据端点。好吧，我想解决<endpoint address="/GoInto/Svc"...端点，我认为这是完整的地址（注意我已经指定了一个基址）：http://localhost:8081/Service1/GoInto/Svc。
嗯，不幸的是，在客户端，我解决了这个端点：http://localhost:8081/Service1这只是基地址......为什么它工作????我想在客户端中指定此地址：
namespace WcfServiceClient {
class Program {
static void Main(string[] args) {
ServiceEndpoint httpEndpoint = new ServiceEndpoint(ContractDescription.GetContract(typeof(IService1)), new BasicHttpBinding(), new EndpointAddress("http://localhost:8081/Service1/GoInto/Svc"));
ChannelFactory<IService1> channelFactory = new ChannelFactory<IService1>(httpEndpoint);
IService1 svc = channelFactory.CreateChannel();
Console.WriteLine(svc.GetData(121));
System.Threading.Thread.Sleep(10000);
}
}
}
但如果我这样做，会引发不匹配错误：
带有To的消息 的 'http：//本地主机：8081 /服务1 /走进这/ SVC' 不能在接收器处理， 由于AddressFilter不匹配 EndpointDispatcher。检查一下 发送者和接收者 EndpointAddresses同意。
为什么不起作用？
答案 0 :(得分：1)
必须在ServiceHost构造函数或元素中的一个位置指定基址。如果你在两个地方都有，WCF会抛出一个异常，说明你有两个基本地址用于同一个方案（HTTP）。
可能发生的事情是您在托管项目的app.config上的服务名称不匹配，因此未获取配置（您获得的是默认端点，其地址是相同的一个作为基地址）。尝试在托管代码上添加foreach循环，您应该会看到服务正在侦听的端点的地址。
Console.WriteLine("Opening host...");
host.Open();
foreach (ServiceEndpoint endpoint in host.Description.Endpoints)
{
Console.WriteLine("Endpoint:");
Console.WriteLine(" Address: {0}", endpoint.Address.Uri);
Console.WriteLine(" Binding: {0}", endpoint.Binding);
Console.WriteLine(" Contract: {0}", endpoint.Contract.Name);
}
Console.WriteLine("Waiting...");