WCF --KnowType,ServiceKnownType,配置文件添加

来源：互联网发布：anaconda2 安装 linux 编辑：程序博客网时间：2024/05/17 06:38

KnowType

指定 DataContractSerializer 在序列化和反序列化给定类型时应识别的类型

ServiceKnownType

指定序列化或反序列化时服务要使用的已知类型

父类:

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

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