介绍
WCF(Windows Communication Foundation) - 契约(Contract):服务契约(ServiceContract),操作契约(OperationContract),数据契约(DataContract),服务已知类型(ServiceKnownType),数据成员(DataMember)。
示例
1、服务
IPersonManager.cs
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.ServiceModel;
using System.Runtime.Serialization;
namespace WCF.ServiceLib.Contract
{
/// <summary>
/// 人员管理接口
/// </summary>
// Namespace - 服务契约的命名空间
// Name - 服务契约的名称(会对应到相关的wsdl,默认情况下本例为接口名“IPersonManager”)
// ConfigurationName - 服务契约在宿主中所配置的服务名称(默认情况下本例为类的全名“WCF.ServiceLib.Contract.IPersonManager”)
[ServiceContract(Namespace = "http://webabcd.cnblogs.com", Name = "IPersonManager", ConfigurationName = "ConfigurationNameTest")]
// 服务已知类型 - Student(数据契约)继承自Person(数据契约),要指定Student为已知类型,其才会被序列化
[ServiceKnownType(typeof(Student))]
public interface IPersonManager
{
/// <summary>
/// 获取某人的姓名
/// </summary>
/// <param name="p">Person对象</param>
/// <returns></returns>
// Name - 操作契约的名称(会对应到相关的wsdl,默认情况下本例为方法名“GetName”)
[OperationContract(Name="GetPersonName")]
string GetName([MessageParameter(Name = "person")] Person p);
}
}
PersonManager.cs
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.ServiceModel;
using System.Runtime.Serialization;
namespace WCF.ServiceLib.Contract
{
/// <summary>
/// 人员管理类
/// </summary>
public class PersonManager : IPersonManager
{
/// <summary>
/// 获取某人的姓名
/// </summary>
/// <param name="p">Person对象</param>
/// <returns></returns>
public string GetName(Person p)
{
return "Name: " + p.Name;
}
}
}
Person.cs
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.ServiceModel;
using System.Runtime.Serialization;
namespace WCF.ServiceLib.Contract
{
/// <summary>
/// Person的实体类
/// </summary>
// Name - 数据契约的名称(会对应到相关的wsdl,默认情况下本例为类名“Person”)
[DataContract(Name = "PersonModel")]
public class Person
{
/// <summary>
/// Person的实体类的Age属性
/// </summary>
// Name - 数据成员的名称(会对应到相关的wsdl,默认情况下本例为属性名“Age”)
// IsRequired - 该值指示序列化引擎该成员在读取或反序列化时必须存在
// Order - 数据成员在相关的wsdl中的顺序
// EmitDefaultValue - 如果应该在序列化流中生成成员的默认值,则为 true,否则为 false,默认值为 true
[DataMember(Name = "PersonAge", IsRequired = false, Order = 1)]
public int Age { get; set; }

/// <summary>
/// Person的实体类的Name属性
/// </summary>
// Name - 数据成员的名称(会对应到相关的wsdl,默认情况下本例为属性名“Name”)
// IsRequired - 该值指示序列化引擎该成员在读取或反序列化时必须存在
// Order - 数据成员在相关的wsdl中的顺序
// EmitDefaultValue - 如果应该在序列化流中生成成员的默认值,则为 true,否则为 false,默认值为 true
[DataMember(Name = "PersonName", IsRequired = false, Order = 0)]
public string Name { get; set; }
}
}
Student.cs
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.ServiceModel;
using System.Runtime.Serialization;
namespace WCF.ServiceLib.Contract
{
/// <summary>
/// Student的实体类
/// </summary>
// Name - 数据契约的名称(会对应到相关的wsdl,默认情况下本例为类名“Student”)
[DataContract(Name = "StudentModel")]
public class Student : Person
{
/// <summary>
/// Student的实体类的School属性
/// </summary>
// Name - 数据成员的名称(会对应到相关的wsdl,默认情况下本例为属性名“School”)
// IsRequired - 该值指示序列化引擎该成员在读取或反序列化时必须存在
// Order - 数据成员在相关的wsdl中的顺序
// EmitDefaultValue - 如果应该在序列化流中生成成员的默认值,则为 true,否则为 false,默认值为 true
[DataMember(Name = "School", IsRequired = false, Order = 0)]
public string School { get; set; }
}
}
2、宿主
PersonManager.svc
<%
@ ServiceHost Language="C#" Debug="true" Service="WCF.ServiceLib.Contract.PersonManager"
%>
Web.config
<?
xml version="1.0"
?>
<
configuration
>
<
system
.serviceModel
>
<
behaviors
>
<
serviceBehaviors
>
<
behavior
name
="ContractBehavior"
>
<!--
httpGetEnabled - 使用get方式提供服务
-->
<
serviceMetadata
httpGetEnabled
="true"
/>
</
behavior
>
</
serviceBehaviors
>
</
behaviors
>
<
services
>
<!--
name - 提供服务的类名
-->
<!--
behaviorConfiguration - 指定相关的行为配置
-->
<
service
name
="WCF.ServiceLib.Contract.PersonManager"
behaviorConfiguration
="ContractBehavior"
>
<!--
address - 服务地址
-->
<!--
binding - 通信方式
-->
<!--
contract - 服务契约
-->
<
endpoint
address
=""
binding
="basicHttpBinding"
contract
="ConfigurationNameTest"
/>
</
service
>
</
services
>
</
system.serviceModel
>
</
configuration
>
3、客户端
PersonManager.aspx
<%
@ Page Language="C#" MasterPageFile="~/Site.master" AutoEventWireup="true" CodeFile="PersonManager.aspx.cs"
Inherits="Contract_PersonManager" Title="契约(ServiceContract、OperationContract、DataContract、ServiceKnownType和DataMember)"
%>
<
asp:Content
ID
="Content1"
ContentPlaceHolderID
="head"
runat
="Server"
>
</
asp:Content
>
<
asp:Content
ID
="Content2"
ContentPlaceHolderID
="ContentPlaceHolder1"
runat
="Server"
>
<
asp:TextBox
ID
="txtName"
runat
="server"
Text
="webabcd"
/>
<
asp:Button
ID
="btnGetName"
runat
="server"
Text
="GetName"
onclick
="btnGetName_Click"
/>
</
asp:Content
>
PersonManager.aspx .cs
using System;
using System.Collections;
using System.Configuration;
using System.Data;
using System.Linq;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.HtmlControls;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Xml.Linq;
public
partial
class Contract_PersonManager : System.Web.UI.Page
{
protected void Page_Load(object sender, EventArgs e)
{

}

protected void btnGetName_Click(object sender, EventArgs e)
{
// Contract.IPersonManager pm = new Contract.PersonManagerClient();

Contract.PersonManagerClient proxy = new Contract.PersonManagerClient();

Contract.StudentModel sm = new Contract.StudentModel() { PersonName = txtName.Text };

Page.ClientScript.RegisterStartupScript(
this.GetType(),
"js",
string.Format("alert('{0}')", proxy.GetPersonName(sm)),
true);

proxy.Close();
}
}
Web.config
<?
xml version="1.0"
?>
<
configuration
>
<
system
.serviceModel
>
<
client
>
<!--
address - 服务地址
-->
<!--
binding - 通信方式
-->
<!--
contract - 服务契约
-->
<
endpoint
address
="http://localhost:3502/ServiceHost/Contract/PersonManager.svc"
binding
="basicHttpBinding"
contract
="Contract.IPersonManager"
/>
</
client
>
</
system.serviceModel
>
</
configuration
>
运行结果:
单击" btnGetName" 后弹出提示框,显示"Name: webabcd"
WCF(Windows Communication Foundation) - 契约(Contract):服务契约(ServiceContract),操作契约(OperationContract),数据契约(DataContract),服务已知类型(ServiceKnownType),数据成员(DataMember)。
示例
1、服务
IPersonManager.cs































PersonManager.cs


























Person.cs







































Student.cs





























2、宿主
PersonManager.svc

Web.config























3、客户端
PersonManager.aspx











PersonManager.aspx .cs






































Web.config











运行结果:
单击" btnGetName" 后弹出提示框,显示"Name: webabcd"