c# - WCF 测试客户端，未能调用服务
问题描述
使用 WCF 测试客户端调用以下方法
Service1.svc
using System;
using System.Collections.Generic;
using System.Linq;
using System.Runtime.Serialization;
using System.ServiceModel;
using System.ServiceModel.Web;
using System.Text;
namespace ShoppingCartService
{
// NOTE: You can use the "Rename" command on the "Refactor" menu to change the class name "Service1" in code, svc and config file together.
// NOTE: In order to launch WCF Test Client for testing this service, please select Service1.svc or Service1.svc.cs at the Solution Explorer and start debugging.
public class Service1 : IService1
{
DigitalXDBEntities _db = new DigitalXDBEntities();
//Fetches Images from SQL Database
public string GetImage(object Picture)
{
return "data:image/jpg;base64," + Convert.ToBase64String((byte[])Picture);
}
//Fetches popular products
public List<Product> GetTopProducts()
{
var query = (from p in _db.Products
orderby p.Price
select p).Take(5);
return query.ToList();
}
//Fetches all DVD using subcategory product id
public List<Product> GetDvds()
{
List<int> list = new List<int>() { 1, 2, 3, 4, 5, 6, 7, 8 };
var query = (from p in _db.Products
where list.Contains(p.SubCategoryID)
select p);
return query.ToList();
}
//Fetches all components using subcategory product id
public List<Product> GetComponents()
{
IEnumerable<int> list = new List<int>() { 25, 31, 29, 30 };
List<Product> query = (from p in _db.Products
where list.Contains(p.SubCategoryID)
select p).ToList();
return query;
}
//Fetches all Consoles using product id
public List<Product> GetConsoles()
{
IEnumerable<int> list = new List<int>() { 21, 23 };
List<Product> query = (from p in _db.Products
where list.Contains(p.SubCategoryID)
select p).ToList();
return query;
}
//Fetches all games using subcategory product id
public List<Product> GetGames()
{
IEnumerable<int> list = new List<int>() { 9, 10, 11, 12, 14, 15 };
List<Product> query = (from p in _db.Products
where list.Contains(p.SubCategoryID)
select p).ToList();
return query;
}
//Fetches all handbooks using subcategory product id
public List<Product> GetHandbooks()
{
IEnumerable<int> list = new List<int>() { 27, 28 };
List<Product> query = (from p in _db.Products
where list.Contains(p.SubCategoryID)
select p).ToList();
return query;
}
//Fetches all pc parts using subcategory product id
public List<Product> GetPcParts()
{
IEnumerable<int> list = new List<int>() { 26 };
List<Product> query = (from p in _db.Products
where list.Contains(p.SubCategoryID)
select p).ToList();
return query;
}
}
}
我的服务.cs
using System;
using System.Collections.Generic;
using System.Linq;
using System.Runtime.Serialization;
using System.ServiceModel;
using System.ServiceModel.Web;
using System.Text;
namespace ShoppingCartService
{
// NOTE: You can use the "Rename" command on the "Refactor" menu to change the interface name "IService1" in both code and config file together.
[ServiceContract]
public interface IService1
{
[OperationContract]
List<Product> GetDvds();
[OperationContract]
List<Product> GetTopProducts();
[OperationContract]
List<Product> GetComponents();
[OperationContract]
List<Product> GetGames();
[OperationContract]
List<Product> GetHandbooks();
[OperationContract]
List<Product> GetPcParts();
}
// Use a data contract as illustrated in the sample below to add composite types to service operations.
}
还有我的网络配置
<?xml version="1.0" encoding="utf-8"?>
<configuration>
<configSections>
<!-- For more information on Entity Framework configuration, visit http://go.microsoft.com/fwlink/?LinkID=237468 -->
<section name="entityFramework" type="System.Data.Entity.Internal.ConfigFile.EntityFrameworkSection, EntityFramework, Version=6.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089" requirePermission="false" />
</configSections>
<appSettings>
<add key="aspnet:UseTaskFriendlySynchronizationContext" value="true" />
</appSettings>
<system.web>
<compilation debug="true" targetFramework="4.6.1" />
<httpRuntime targetFramework="4.6.1" />
</system.web>
<system.serviceModel>
<behaviors>
<serviceBehaviors>
<behavior>
<!-- To avoid disclosing metadata information, set the values below to false before deployment -->
<serviceMetadata httpGetEnabled="true" httpsGetEnabled="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>
<protocolMapping>
<add binding="basicHttpsBinding" scheme="https" />
</protocolMapping>
<serviceHostingEnvironment aspNetCompatibilityEnabled="true" multipleSiteBindingsEnabled="true" />
</system.serviceModel>
<system.webServer>
<modules runAllManagedModulesForAllRequests="true" />
<!--
To browse web app root directory during debugging, set the value below to true.
Set to false before deployment to avoid disclosing web app folder information.
-->
<directoryBrowse enabled="true" />
</system.webServer>
<connectionStrings>
<add name="DigitalXDBEntities" connectionString="metadata=res://*/DigitalX.csdl|res://*/DigitalX.ssdl|res://*/DigitalX.msl;provider=System.Data.SqlClient;provider connection string="data source=DESKTOP-D4D7MNA;initial catalog=DigitalXDB;integrated security=True;multipleactiveresultsets=True;application name=EntityFramework"" providerName="System.Data.EntityClient" /></connectionStrings>
<entityFramework>
<defaultConnectionFactory type="System.Data.Entity.Infrastructure.LocalDbConnectionFactory, EntityFramework">
<parameters>
<parameter value="mssqllocaldb" />
</parameters>
</defaultConnectionFactory>
<providers>
<provider invariantName="System.Data.SqlClient" type="System.Data.Entity.SqlServer.SqlProviderServices, EntityFramework.SqlServer" />
</providers>
</entityFramework>
</configuration>
完整的错误信息
调用服务失败。可能原因：服务离线或无法访问；客户端配置与代理不匹配；现有代理无效。有关更多详细信息，请参阅堆栈跟踪。您可以尝试通过启动新代理、恢复到默认配置或刷新服务来恢复。
接收对http://localhost:56504/Service1.svc的 HTTP 响应时出错。这可能是由于服务端点绑定未使用 HTTP 协议。这也可能是由于服务器中止了 HTTP 请求上下文（可能是由于服务关闭）。有关更多详细信息，请参阅服务器日志。
服务器堆栈跟踪：在 System.ServiceModel.Channels.HttpChannelUtilities.ProcessGetResponseWebException(WebException webException, HttpWebRequest request, HttpAbortReason abortReason)
在 System.ServiceModel.Channels.HttpChannelFactory`1.HttpRequestChannel.HttpChannelRequest.WaitForReply（TimeSpan 超时）在 System.ServiceModel.Channels.RequestChannel.Request（消息消息，TimeSpan 超时）在 System.ServiceModel.Dispatcher.RequestChannelBinder.Request（消息消息, TimeSpan 超时) 在 System.ServiceModel.Channels.ServiceChannelProxy.InvokeService(String action, Boolean oneway, ProxyOperationRuntime operation, Object[] ins, Object[] outs, TimeSpan timeout) 在 System.ServiceModel.Channels.ServiceChannelProxy.InvokeService(IMethodCallMessage methodCall , ProxyOperationRuntime 操作) 在 System.ServiceModel.Channels.ServiceChannelProxy.Invoke(IMessage 消息)在 [0] 处重新抛出异常：在 System.Runtime.Remoting.Proxies.RealProxy.PrivateInvoke(MessageData& msgData, Int32 type) 在 IService1.GetDvds( ) 在 Service1Client.GetDvds()
内部异常：底层连接已关闭：接收时发生意外错误。在 System.Net.HttpWebRequest.GetResponse() 在 System.ServiceModel.Channels.HttpChannelFactory`1.HttpRequestChannel.HttpChannelRequest.WaitForReply（TimeSpan 超时）
内部异常：无法从传输连接读取数据：现有连接被远程主机强行关闭。在 System.Net.Sockets.NetworkStream.Read(Byte[] buffer, Int32 offset, Int32 size) 在 System.Net.PooledStream.Read(Byte[] buffer, Int32 offset, Int32 size) 在 System.Net.Connection.SyncRead （HttpWebRequest 请求，布尔型 userRetrievedStream，布尔型 probeRead）
内部异常：远程主机在 System.Net.Sockets.NetworkStream.Read(Byte [] 缓冲区，Int32 偏移量，Int32 大小）
我遇到了之前的一篇文章，其中提到将 IEnumerable 列表更改为通用列表，不幸的是这不起作用
编辑：帖子已更新为完整的代码和命名空间
编辑：使用服务提供的默认方法（如下所示）在测试客户端中工作得很好，但是我自己的连接到数据库的方法根本不调用并显示上述错误消息
public string GetData(int value)
{
return string.Format("You entered: {0}", value);
}
解决方案
endpoint在您的配置文件中检查 WCF 配置部分，您将看到您也没有任何配置service contract。基本上你完全错过了services下面的部分<system.serviceModel>，我相信这就是问题所在
<system.serviceModel>
<behaviors>
<serviceBehaviors>
<behavior>
<!-- To avoid disclosing metadata information, set the values below to false before deployment -->
<serviceMetadata httpGetEnabled="true" httpsGetEnabled="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>
<protocolMapping>
<add binding="basicHttpsBinding" scheme="https" />
</protocolMapping>
<serviceHostingEnvironment aspNetCompatibilityEnabled="true" multipleSiteBindingsEnabled="true" />
</system.serviceModel>
根据您编辑的帖子，它应该如下所示
<services>
<service name="ShoppingCartService.Service1">
<endpoint address="" binding="basicHttpBinding" contract="ShoppingCartService.IService1" />
<endpoint address="mex" binding="mexHttpBinding" contract="IMetadataExchange" />
</service>
</services>
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