少有人走的路
namespace Contracts.Model
{
//[KnownType(typeof(ChildModel))]
public class ParentModel
{
public string PName { get; set; }
public int Age { get; set; }
}
}派生类:
namespace Contracts.Model
{
public class ChildModel:ParentModel
{
public string CName { get; set; }
}
}服务契约:
using System.Collections.Generic;
using System.ServiceModel;
using Contracts.Model;
namespace Contracts
{
[ServiceContract]
//[ServiceKnownType(typeof(ChildModel))]
public interface IContract
{
[OperationContract]
//[ServiceKnownType(typeof(ChildModel))]
ParentModel ChildToParent();
}服务端实现:
using System.Collections.Generic;
using Contracts;
using Contracts.Model;
namespace Serices
{
public class ServiceImpl : IContract
{ public ParentModel ChildToParent()
{
ChildModel cinfo = new ChildModel();
cinfo.Age = 123;
cinfo.CName = "子类";
cinfo.PName = "P1";
return cinfo;
}
}
}服务端config
<?xml version="1.0" encoding="utf-8" ?> <configuration> <system.serviceModel> <bindings> <netTcpBinding> <binding name="CatorNetTcpBing" receiveTimeout ="00:00:40" > <!--<reliableSession ordered="true" inactivityTimeout="00:00:10" enabled="false" />--> </binding> </netTcpBinding> </bindings> <behaviors> <serviceBehaviors> <behavior name="metadataBehavior"> <serviceDebug includeExceptionDetailInFaults ="false"/> </behavior> </serviceBehaviors> </behaviors> <services> <service behaviorConfiguration="metadataBehavior" name="Serices.ServiceImpl"> <endpoint address="net.tcp://192.168.1.204:9300/IContract" binding="netTcpBinding" contract="Contracts.IContract" bindingConfiguration ="CatorNetTcpBing" /> </service> </services> </system.serviceModel> <system.diagnostics> <trace autoflush="true" /> <sources> <source name="System.ServiceModel" switchValue="Error" propagateActivity="true"> <listeners> <add name="xwt" type="System.Diagnostics.XmlWriterTraceListener" initializeData="MyListener.log" /> </listeners> </source> </sources> </system.diagnostics> <!--<system.runtime.serialization> <dataContractSerializer> <declaredTypes> <add type="Contracts.Model.ParentModel, Contracts, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null"> <knownType type="Contracts.Model.ChildModel, Contracts, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null" /> </add> </declaredTypes> </dataContractSerializer> </system.runtime.serialization>--> </configuration>
客户端调用:
using System.Collections.Generic;
using System.ServiceModel;
using Contracts.Model;
namespace Contracts.Client
{
public class ClientImpl:ClientBase<IContract>,IContract
{
public ParentModel ChildToParent()
{
return Channel.ChildToParent();
}
}
}客户端CONFIG
<?xml version="1.0" encoding="utf-8"?> <configuration> <system.serviceModel> <bindings> <netTcpBinding> <binding name="CatorNetTcpBing" receiveTimeout="00:00:40" /> </netTcpBinding> </bindings> <client> <endpoint address="net.tcp://192.168.1.204:9300/IContract" binding="netTcpBinding" bindingConfiguration="CatorNetTcpBing" contract="Contracts.IContract" name="" kind="" endpointConfiguration=""> </endpoint> </client> <services /> </system.serviceModel> <!--<system.runtime.serialization> <dataContractSerializer> <declaredTypes> <add type="Contracts.Model.ParentModel, Contracts, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null"> <knownType type="Contracts.Model.ChildModel, Contracts, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null" /> </add> </declaredTypes> </dataContractSerializer> </system.runtime.serialization>--> </configuration>
1.在父类CLASS上写 [KnownType(typeof(ChildModel))]
2.在服务接口(interface)或定义的某个规则上加[ServiceKnownType(typeof(ChildModel))]
3.在客户端和服务端上同时加相关配置
作用:实现继承,子类往父亲转换,从而实现多态
另一个例子：
1.服务器端：
/// <summary>
/// 实现IExtensibleDataObject接口，表示这个类的派生类也可以序列化
/// IsRequired表示该属性是否需要赋值之后才能序列化
///
/// 注意：此类上没有标记KnownType属性，于是在客户端找不到School的派生类
/// 若是在此类上没有KnownType标记，在契约接口上使用ServiceKnownType标记也是可以的
/// 当然，ServiceKnownType标记也是可以应用在接口里面的方法上面的
/// </summary>
[DataContract(Name = "SchoolEntity", Namespace = "http://schemas.yoyo/zhu")]
//[KnownType(typeof(Teacher))]
//[KnownType(typeof(Student))]
public class School : IExtensibleDataObject
{
/// <summary>
/// 学校编号
/// </summary>
[DataMember(Name = "Num", IsRequired = true, Order = 0)]
public string s_Num { get; set; }
/// <summary>
/// 学校名称
/// </summary>
[DataMember(Name = "Name", IsRequired = true, Order = 1)]
public string s_Name { get; set; }
/// <summary>
/// 描述
/// </summary>
[DataMember(Name = "Description", IsRequired = false, Order = 2)]
public string s_Description { get; set; }
private ExtensionDataObject extensionDataObject;
#region IExtensibleDataObject 成员
public ExtensionDataObject ExtensionData
{
get
{
return extensionDataObject;
}
set
{
extensionDataObject = value;
}
}
#endregion
}
派生类：
[DataContract(Namespace = "http://schemas.yoyo/zhu")]
public class Student : School
{
public Student()
{
this.s_SchoolDerivedClass = SchoolEnmu.Student;
}
}
[DataContract(Namespace = "http://schemas.yoyo/zhu")]
public class Teacher : School
{
public Teacher()
{
this.s_SchoolDerivedClass = SchoolEnmu.Teacher;
}
}2.契约
[ServiceContract(Name = "IKonwTypeService", Namespace = "http://www.yoyo/zhu")]
[ServiceKnownType(typeof(Teacher))]
[ServiceKnownType(typeof(Student))]
public interface IKonwTypeService
{
[OperationContract]
void AddTeacher(School sc);
[OperationContract]
List<School> GetTeacher();
}
//这个ServiceBehavior可有可无
//[ServiceBehavior(InstanceContextMode = InstanceContextMode.PerSession)]
public class KonwTypeService : IKonwTypeService
{
private static School school;
#region IKonwTypeService 成员
public void AddTeacher(School sc)
{
school = sc;
}
public List<School> GetTeacher()
{
List<School> list = new List<School>();
list.Add(school);
return list;
}
#endregion
}3.宿主环境配置：
ServiceHost host = new ServiceHost(typeof(KonwTypeService));
host.Open();
Console.WriteLine("宿主服务已启动!");
Console.ReadKey();<system.serviceModel> <services> <service name="KonwTypeServices.KonwTypeService" behaviorConfiguration="serviceBehavior"> <host> <baseAddresses> <add baseAddress="http://localhost:8044"/> </baseAddresses> </host> <endpoint address="KonwTypeService" contract="KonwTypeServices.IKonwTypeService" binding="basicHttpBinding" /> <endpoint contract="IMetadataExchange" binding="mexHttpBinding" address="mex" /> </service> </services> <behaviors> <serviceBehaviors> <behavior name="serviceBehavior"> <serviceMetadata httpGetEnabled="true"/> </behavior> </serviceBehaviors> </behaviors> </system.serviceModel>
4.客户端
5.注意：当ServiceKnownType和KnownType标记都没使用时，可以在配置文件里面添加如下代码，在客户端也能生成其派生类
<system.runtime.serialization> <dataContractSerializer> <declaredTypes> <add type="EntityModel.School, EntityModel, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null"> <knownType type="EntityModel.Student, EntityModel, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null" /> <knownType type="EntityModel.Teacher, EntityModel, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null" /> </add> </declaredTypes> </dataContractSerializer> </system.runtime.serialization>
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本帖最后由 勇哥,很想停止 于 2024-06-21 16:52:13 编辑 
