Ум совершенно новый для WCF. Кажется, я немного испортил. Так вот что я сделал до сих пор, и я разместил свою службу WCF в IIS
Сначала Контракты
using System;
using System.Collections.Generic;
using System.Linq;
using System.Runtime.Serialization;
using System.ServiceModel;
using System.ServiceModel.Web;
using System.Text;
using YangkeeServer.dto;
namespace YangkeeServer
{
public class Service1 : IService1
{
[WebInvoke(Method = "GET", ResponseFormat = WebMessageFormat.Json, UriTemplate = "single")]
public YangkeeTrailerDTO getTrailor()
{
return new YangkeeTrailerDTO()
{
loanFrom = "heaven"
};
}
[WebInvoke(Method = "GET",
ResponseFormat = WebMessageFormat.Json,
UriTemplate = "datum/{id}")]
public Test getName(string id)
{
return new Test()
{
Id = Convert.ToInt32(id) * 12,
Name = "Leo Messi"
};
}
}
}
и это мой файл web.config
<?xml version="1.0"?>
<configuration>
<system.web>
<compilation debug="true" targetFramework="4.0" />
</system.web>
<system.serviceModel>
<services>
<service name="YangkeeServer.Service1">
<endpoint
contract="YangkeeServer.IService1"
binding="webHttpBinding"
behaviorConfiguration="WebHttp"
address="http://localhost:7000/Service1.svc">
</endpoint>
</service>
<service name="YangkeeServer.Service2">
<endpoint
contract="YangkeeServer.IService2"
binding="webHttpBinding"
behaviorConfiguration="WebHttp"
address="http://localhost:7000/Service2.svc">
</endpoint>
</service>
<service name="YangkeeServer.YangkeeTrailer">
<endpoint
contract="YangkeeServer.IYangkeeTrailor"
binding="webHttpBinding"
behaviorConfiguration="WebHttp"
address="http://localhost:7000/YangkeeTrailor.svc">
</endpoint>
</service>
</services>
<behaviors>
<endpointBehaviors>
<behavior name="WebHttp">
<webHttp />
</behavior>
</endpointBehaviors>
<serviceBehaviors>
<behavior name="">
<serviceMetadata httpGetEnabled="true" />
<serviceDebug includeExceptionDetailInFaults="false" />
</behavior>
</serviceBehaviors>
</behaviors>
<serviceHostingEnvironment multipleSiteBindingsEnabled="true" />
</system.serviceModel>
<system.webServer>
<modules runAllManagedModulesForAllRequests="true"/>
</system.webServer>
</configuration>
и um, используя этот urlhttp://localhost: 7000/Service1.svc и um, получая эту ошибку
Server Error in '/' Application.
When 'system.serviceModel/serviceHostingEnvironment/multipleSiteBindingsEnabled' is set to true in configuration, the endpoints are required to specify a relative address. If you are specifying a relative listen URI on the endpoint, then the address can be absolute. To fix this problem, specify a relative uri for endpoint 'http://localhost:7000/Service1.svc'.
Может ли кто-нибудь сказать мне, где я сделал ошибку? Заранее спасибо. 
