对象未从 wcf Web 服务返回 [英] Object is not returned from the wcf web service
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问题描述
我在 wcf 中编写了一个返回对象的 Web 服务.但是当我从客户端代码调用它时，它不返回任何对象.
I have written a web service in wcf that returns a object. But When I call it from client code it does not return any object.
我想要返回的对象的类
[DataContract]
public class OrderData
{
[DataMember]
public List<ORDER_INFO> OrderInfoList { get; set; }
[DataMember]
public List<ORDER_PRODUCT_MAPPING> OrderProductMappingList { get; set; }
}
My Service Interface
[ServiceContract]
public interface ISyncService
{
[OperationContract]
OrderData InsertOrderData(decimal depotId);
}
接口实现类
public class SyncService : ISyncService
{
readonly InceptaDbContext _db = new InceptaDbContext();
public OrderData InsertOrderData(decimal depotId)
{
var orderData = new OrderData
{
OrderInfoList = new List<ORDER_INFO>(),
OrderProductMappingList = new List<ORDER_PRODUCT_MAPPING>()
};
var orderList = _db.ORDER_INFO
.Where(m => m.D_ID.Equals(depotId)&& m.STATUS.Equals("1"));
//.Where(m => m.STATUS.Equals("1"));
foreach (var orderInfo in orderList)
{
orderData.OrderInfoList.Add(orderInfo);
orderData.OrderProductMappingList.AddRange(
_db.ORDER_PRODUCT_MAPPING.Where(m => m.ORDER_ID.Equals
(orderInfo.ORDER_ID)));
}
foreach (var orderInfo in orderList)
{
orderInfo.STATUS = "2";
_db.Entry(orderInfo).State = EntityState.Modified;
}
_db.SaveChanges();
return orderData;
}
}
我的服务器网络配置
<?xml version="1.0" encoding="utf-8"?>
<configuration>
<system.web>
<compilation debug="true" targetFramework="4.0">
<assemblies>
<add assembly="System.Data.Entity, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089" />
</assemblies>
</compilation>
</system.web>
<system.serviceModel>
<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>
<serviceHostingEnvironment multipleSiteBindingsEnabled="true" />
</system.serviceModel>
<system.webServer>
<modules runAllManagedModulesForAllRequests="true" />
<directoryBrowse enabled="true" />
</system.webServer>
<connectionStrings>
<add name="InceptaDbContext"
connectionString="metadata=res://*/DbContext.Model1.csdl|res://*/DbContext.Model1.ssdl|res://*/DbContext.Model1.msl;provider=Oracle.DataAccess.Client;provider connection string="DATA SOURCE=localhost/InceptaMSFA;PASSWORD=bs23;PERSIST SECURITY INFO=True;USER ID=BS"" providerName="System.Data.EntityClient" />
</connectionStrings>
</configuration>
我的客户端应用程序是 C# 中的控制台应用程序主程序
My client app is console app in C# main program
class Program
{
static void Main(string[] args)
{
var client = new SyncServiceClient();
var db = new InceptaDbContext();
var order = client.InsertOrderData(1.0m);
foreach (var s in order.OrderInfoList)
{
db.ORDER_INFO.Add(new ConsumeDataSyncService.DbContext.ORDER_INFO
{
ORDER_ID = s.ORDER_ID,
CH_ID = s.CH_ID,
D_ID = s.D_ID,
EMP_ID = s.EMP_ID,
ORDER_DATE = s.ORDER_DATE,
ORDER_TYPE = s.ORDER_TYPE,
PAY_OPTION = s.PAY_OPTION,
PRODUCT_COUNT = s.PRODUCT_COUNT,
STATUS = "2"
});
Console.WriteLine(s.ORDER_ID +"Inserted");
}
foreach (var s in order.OrderProductMappingList)
{
var orderProductMapping = new ConsumeDataSyncService.DbContext.ORDER_PRODUCT_MAPPING
{
ID = s.ID,
ORDER_ID = s.ORDER_ID,
P_CODE = s.P_CODE,
QUANTITY = s.QUANTITY
};
db.ORDER_PRODUCT_MAPPING.Add(orderProductMapping);
Console.WriteLine(s.ID + "Inserted");
}
db.SaveChanges();
Console.ReadKey();
}
}
and app.config
<?xml version="1.0" encoding="utf-8"?>
<configuration>
<system.serviceModel>
<bindings>
<basicHttpBinding>
<binding name="BasicHttpBinding_ISyncService" closeTimeout="00:01:00" openTimeout="00:01:00" receiveTimeout="00:10:00" sendTimeout="00:01:00" allowCookies="false" bypassProxyOnLocal="false" hostNameComparisonMode="StrongWildcard" maxBufferSize="65536" maxBufferPoolSize="524288" maxReceivedMessageSize="65536" messageEncoding="Text" textEncoding="utf-8" transferMode="Buffered" useDefaultWebProxy="true">
<readerQuotas maxDepth="32" maxStringContentLength="8192" maxArrayLength="16384" maxBytesPerRead="4096" maxNameTableCharCount="16384" />
<security mode="None">
<transport clientCredentialType="None" proxyCredentialType="None" realm="" />
<message clientCredentialType="UserName" algorithmSuite="Default" />
</security>
</binding>
</basicHttpBinding>
</bindings>
<client>
<endpoint address="http://localhost:8092/SyncService.svc" binding="basicHttpBinding" bindingConfiguration="BasicHttpBinding_ISyncService" contract="OrderSyncService.ISyncService" name="BasicHttpBinding_ISyncService" />
</client>
</system.serviceModel>
<connectionStrings>
<add name="InceptaDbContext" connectionString="metadata=res://*/DbContext.Model1.csdl|res://*/DbContext.Model1.ssdl|res://*/DbContext.Model1.msl;provider=Oracle.DataAccess.Client;provider connection string="DATA SOURCE=192.168.1.159/Incepta;PASSWORD=bs23;USER ID=BS"" providerName="System.Data.EntityClient" />
</connectionStrings>
</configuration>
the error I got at the time of debugging
Failed to invoke the service. Possible causes: The service is offline or inaccessible; the client-side configuration does not match the proxy; the existing proxy is invalid. Refer to the stack trace for more detail. You can try to recover by starting a new proxy, restoring to default configuration, or refreshing the service.
The underlying connection was closed: The connection was closed unexpectedly.
Server stack trace:
at System.ServiceModel.Channels.HttpChannelUtilities.ProcessGetResponseWebException(WebException webException, HttpWebRequest request, HttpAbortReason abortReason)
at System.ServiceModel.Channels.HttpChannelFactory.HttpRequestChannel.HttpChannelRequest.WaitForReply(TimeSpan timeout)
at System.ServiceModel.Channels.RequestChannel.Request(Message message, TimeSpan timeout)
at System.ServiceModel.Dispatcher.RequestChannelBinder.Request(Message message, TimeSpan timeout)
at System.ServiceModel.Channels.ServiceChannel.Call(String action, Boolean oneway, ProxyOperationRuntime operation, Object[] ins, Object[] outs, TimeSpan timeout)
at System.ServiceModel.Channels.ServiceChannelProxy.InvokeService(IMethodCallMessage methodCall, ProxyOperationRuntime operation)
at System.ServiceModel.Channels.ServiceChannelProxy.Invoke(IMessage message)
Exception rethrown at [0]:
at System.Runtime.Remoting.Proxies.RealProxy.HandleReturnMessage(IMessage reqMsg, IMessage retMsg)
at System.Runtime.Remoting.Proxies.RealProxy.PrivateInvoke(MessageData& msgData, Int32 type)
at ISyncService.InsertOrderData(Decimal depotId)
at SyncServiceClient.InsertOrderData(Decimal depotId)
Inner Exception:
The underlying connection was closed: The connection was closed unexpectedly.
at System.Net.HttpWebRequest.GetResponse()`enter code here`
at System.ServiceModel.Channels.HttpChannelFactory.HttpRequestChannel.HttpChannelRequest.WaitForReply(TimeSpan timeout)
推荐答案
通常出现此错误，模型中似乎存在循环引用，因此无法序列化.启用 tracing 以查看服务的日志，您可以在其中查看导致的异常服务意外关闭连接.
Usually with this error, there seems to be a circular reference in the model so it can't be serialized. Enable tracing to see the service's log, where you can see what exception caused the service to unexpectedly close the connection.
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