[英]wcf rest json return collection
I am attempting to build a Restful WCF Service which returns data in JSON format. 我正在尝试构建一个Restful WCF服务 ,该服务以JSON格式返回数据。 My firsts methods work fine but when I try return a collection my test program receive the next exception: 我的firsts方法工作正常,但是当我尝试返回一个集合时,我的测试程序会收到下一个异常:
Unable to write data to the transport connection. 无法将数据写入传输连接。 An existing connection was forcibly closed by the remote host. 远程主机强行关闭了现有连接。
My Service code: 我的服务代码:
[ServiceContract]
public interface IService
{
[OperationContract]
[WebInvoke(Method = "POST", RequestFormat = WebMessageFormat.Json, ResponseFormat = WebMessageFormat.Json, BodyStyle = WebMessageBodyStyle.Bare, UriTemplate = "/GetModes")]
OGetModesResponse OGetModes(OGetModesRequest oGetModes);
}
[DataContract]
public class OGetModesRequest
{
private String m_sTicket;
[DataMember]
public String prTicket
{
get { return m_sTicket; }
set { m_sTicket = value; }
}
}
[DataContract]
public class OGetModesResponse
{
[DataMember]
public string sTicket;
[DataMember]
public emStatus emStatus;
[DataMember]
public IList<CTMode> aoModes;
}
And my test program: 而我的测试程序:
OGetModesRequest oGetModes = new OGetModesRequest { prTicket = sTicket };
ser = new DataContractJsonSerializer(typeof(OGetModesRequest));
mem = new MemoryStream();
ser.WriteObject(mem, oGetModes);
webClient = new WebClient();
webClient.Headers["Content-type"] = "application/json";
webClient.Encoding = Encoding.UTF8;
//Exception here
bData = webClient.UploadData("http://localhost:26104/Service.svc/GetModes", "POST", mem.ToArray());
stream = new MemoryStream(bData);
obj = new DataContractJsonSerializer(typeof(OGetModesResponse));
OGetModesResponse OResultModes = obj.ReadObject(stream) as OGetModesResponse;
I debug my services and works fine. 我调试了我的服务,并且工作正常。 What can be happening? 会发生什么事?
Thanks for help. 感谢帮助。
Edit (solution): CTMode is a class used by managing object that I obtain using NHibernate so I create a new class serializable called CMode 编辑(解决方案):CTMode是管理对象使用的类,我使用NHibernate获取该类,因此我创建了一个可序列化的新类,称为CMode
[DataContract]
public class OGetModesResponse
{
[DataMember]
public string sTicket;
[DataMember]
public emStatus emStatus;
[DataMember]
public IList<CMode> aoModes;
}
[Serializable]
public class CMode
{
public Int32 nId;
public Int32 nCode;
public String sName;
}
Try to check inner exception and add some logging/ trace on the server. 尝试检查内部异常并在服务器上添加一些日志记录/跟踪。
There are few possibilities for your (generic) error as you may not be aware about inner exception: 您(一般)错误的可能性很小,因为您可能不了解内部异常:
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