[索引页]
[源码下载]
作者: webabcd
介绍
WCF(Windows Communication Foundation) - 会话状态:
ServiceContract
·SessionMode.Allowed - 指定当传入绑定支持会话时,协定也支持会话(默认值)
·SessionMode.Required - 指定协定需要会话绑定。如果绑定并未配置为支持会话,则将引发异常
·SessionMode.NotAllowed - 指定协定永不支持启动会话的绑定
OperationContract
·IsInitiating - 获取或设置一个值,该值指示方法是否实现可在服务器上启动会话(如果存在会话)的操作。
·IsTerminating - 获取或设置一个值,该值指示服务操作在发送答复消息(如果存在)后,是否会导致服务器关闭会话。
示例
1、服务
IHello.cs
using
System;
using
System.Collections.Generic;
using
System.Linq;
using
System.Text;

using
System.ServiceModel;

namespace
WCF.ServiceLib.SessionManagement
{
/// <summary>
/// 演示会话状态的接口
/// </summary>NotAllowed
/// <remarks>
/// SessionMode - 获取或设置是否允许、不允许或要求会话
/// SessionMode.Allowed - 指定当传入绑定支持会话时,协定也支持会话(默认值)
/// SessionMode.Required - 指定协定需要会话绑定。如果绑定并未配置为支持会话,则将引发异常
/// SessionMode.NotAllowed - 指定协定永不支持启动会话的绑定
/// </remarks>
[ServiceContract(SessionMode = SessionMode.Required)]
public interface IHello
{
/// <summary>
/// 初始化Session
/// </summary>
/// <remarks>
/// IsInitiating - 获取或设置一个值,该值指示方法是否实现可在服务器上启动会话(如果存在会话)的操作。
/// IsTerminating - 获取或设置一个值,该值指示服务操作在发送答复消息(如果存在)后,是否会导致服务器关闭会话。
/// </remarks>
[OperationContract(IsInitiating = true, IsTerminating = false)]
void StartSession();

/// <summary>
/// 结束Session
/// </summary>
[OperationContract(IsInitiating = false, IsTerminating = true)]
void StopSession();

/// <summary>
/// 获取计数器结果
/// </summary>
/// <returns></returns>
[OperationContract(IsInitiating = false, IsTerminating = false)]
int Counter();

/// <summary>
/// 获取SessionId
/// </summary>
/// <returns></returns>
[OperationContract(IsInitiating = false, IsTerminating = false)]
string GetSessionId();
}
}
Hello.cs
using
System;
using
System.Collections.Generic;
using
System.Linq;
using
System.Text;

using
System.ServiceModel;

namespace
WCF.ServiceLib.SessionManagement
{
/// <summary>
/// 演示会话状态的接口
/// </summary>
/// <remarks>
/// InstanceContextMode - 获取或设置指示新服务对象何时创建的值。
/// InstanceContextMode.PerSession - 为每个会话创建一个新的 System.ServiceModel.InstanceContext 对象。
/// InstanceContextMode 的默认值为 InstanceContextMode.PerSession
/// </remarks>
[ServiceBehavior(InstanceContextMode = InstanceContextMode.PerSession)]
public class Hello : IHello
{
private int _counter;

/// <summary>
/// 初始化Session
/// </summary>
public void StartSession()
{
_counter = 0;
}

/// <summary>
/// 结束Session
/// </summary>
public void StopSession()
{
_counter = 0;
}

/// <summary>
/// 获取计数器结果
/// </summary>
/// <returns></returns>
public int Counter()
{
_counter++;

return _counter;
}

/// <summary>
/// 获取SessionId
/// </summary>
/// <returns></returns>
public string GetSessionId()
{
return OperationContext.Current.SessionId;
}
}
}
2、宿主
Hello.svc
<%
@ ServiceHost Language="C#" Debug="true" Service="WCF.ServiceLib.SessionManagement.Hello"
%>
Web.config
<?
xml version="1.0"
?>
<
configuration
>
<
system.serviceModel
>
<
behaviors
>
<
serviceBehaviors
>
<
behavior
name
="SessionManagementBehavior"
>
<!--
httpGetEnabled - 使用get方式提供服务
-->
<
serviceMetadata
httpGetEnabled
="true"
/>
<
serviceDebug
includeExceptionDetailInFaults
="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.SessionManagement.Hello"
behaviorConfiguration
="SessionManagementBehavior"
>
<!--
address - 服务地址
-->
<!--
binding - 通信方式
-->
<!--
contract - 服务契约
-->
<!--
bindingConfiguration - 指定相关的绑定配置
-->
<
endpoint
address
=""
binding
="wsHttpBinding"
contract
="WCF.ServiceLib.SessionManagement.IHello"
bindingConfiguration
="SessionManagementBindingConfiguration"
/>
</
service
>
</
services
>
<
bindings
>
<
wsHttpBinding
>
<!--
wsHttpBinding 可提供 安全会话 和 可靠会话
-->
<!--
receiveTimeout - 在传输引发异常之前可用于完成读取操作的时间间隔(此处可认为是Session过期时间)
-->
<
binding
name
="SessionManagementBindingConfiguration"
receiveTimeout
="00:00:10"
>
<!--
指示是否在通道终结点之间建立 WS-RM (WS-ReliableMessaging) 可靠会话。默认值为 false。
-->
<
reliableSession
enabled
="true"
/>
<
security
>
<!--
此属性控制安全上下文令牌是否通过客户端与服务之间的 WS-SecureConversation 交换建立。将它设置为 true 要求远程方支持 WS-SecureConversation。
-->
<
message
establishSecurityContext
="true"
/>
</
security
>
</
binding
>
</
wsHttpBinding
>
</
bindings
>
</
system.serviceModel
>
</
configuration
>
3、客户端
Hello.aspx
<%
@ Page Language="C#" MasterPageFile="~/Site.master" AutoEventWireup="true" CodeFile="Hello.aspx.cs"
Inherits="InstanceMode_Hello" Title="会话状态(Session)"
%>

<
asp:Content
ID
="Content1"
ContentPlaceHolderID
="head"
runat
="Server"
>
</
asp:Content
>
<
asp:Content
ID
="Content2"
ContentPlaceHolderID
="ContentPlaceHolder1"
runat
="Server"
>
<
asp:Button
ID
="btnStartSession"
runat
="server"
Text
="StartSession"
OnClick
="btnStartSession_Click"
/>
<
asp:Button
ID
="btnCounter"
runat
="server"
Text
="Counter"
OnClick
="btnCounter_Click"
/>
<
asp:Button
ID
="btnGetSessionId"
runat
="server"
Text
="GetSessionId"
OnClick
="btnGetSessionId_Click"
/>
<
asp:Button
ID
="btnStopSession"
runat
="server"
Text
="StopSession"
OnClick
="btnStopSession_Click"
/>
</
asp:Content
>
Hello.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
InstanceMode_Hello : System.Web.UI.Page
{
SessionManagemenSvc.HelloClient _proxy = null;

protected void Page_Load(object sender, EventArgs e)
{
if (Session["proxy"] == null)
Session["proxy"] = new SessionManagemenSvc.HelloClient();

_proxy = Session["proxy"] as SessionManagemenSvc.HelloClient;
}

protected void btnStartSession_Click(object sender, EventArgs e)
{
_proxy.StartSession();
}

protected void btnCounter_Click(object sender, EventArgs e)
{
Page.ClientScript.RegisterStartupScript(
this.GetType(),
"js",
string.Format("alert('计数器:{0}')", _proxy.Counter()),
true);
}

protected void btnGetSessionId_Click(object sender, EventArgs e)
{
Page.ClientScript.RegisterStartupScript(
this.GetType(),
"js",
string.Format("alert('SessionId:{0}')", _proxy.GetSessionId()),
true);
}

protected void btnStopSession_Click(object sender, EventArgs e)
{
_proxy.StopSession();
}
}
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
-->
<!--
bindingConfiguration - 指定相关的绑定配置
-->
<
endpoint
address
="http://localhost:3502/ServiceHost/SessionManagement/Hello.svc"
binding
="wsHttpBinding"
contract
="SessionManagemenSvc.IHello"
bindingConfiguration
="SessionManagementBindingConfiguration"
/>
</
client
>
<
bindings
>
<
wsHttpBinding
>
<
binding
name
="SessionManagementBindingConfiguration"
>
<!--
指示是否在通道终结点之间建立 WS-RM (WS-ReliableMessaging) 可靠会话。默认值为 false。
-->
<
reliableSession
enabled
="true"
/>
<
security
>
<!--
此属性控制安全上下文令牌是否通过客户端与服务之间的 WS-SecureConversation 交换建立。将它设置为 true 要求远程方支持 WS-SecureConversation。
-->
<
message
establishSecurityContext
="true"
/>
</
security
>
</
binding
>
</
wsHttpBinding
>
</
bindings
>
</
system.serviceModel
>
</
configuration
>
运行结果:
单击" btnStartSession"按钮,初始化Session
单击" btnCounter"按钮,Session级别的计数器累加
单击" btnGetSessionId"按钮,获取当前Session的SessionId
单击" btnStopSession"按钮,终止Session
注:
Host中的 wsHttpBinding配置的 receiveTimeout属性为Session的过期时间
OK
[源码下载]
[源码下载]
化零为整WCF(11) - 会话状态(Session)
作者: webabcd
介绍
WCF(Windows Communication Foundation) - 会话状态:
ServiceContract
·SessionMode.Allowed - 指定当传入绑定支持会话时,协定也支持会话(默认值)
·SessionMode.Required - 指定协定需要会话绑定。如果绑定并未配置为支持会话,则将引发异常
·SessionMode.NotAllowed - 指定协定永不支持启动会话的绑定
OperationContract
·IsInitiating - 获取或设置一个值,该值指示方法是否实现可在服务器上启动会话(如果存在会话)的操作。
·IsTerminating - 获取或设置一个值,该值指示服务操作在发送答复消息(如果存在)后,是否会导致服务器关闭会话。
示例
1、服务
IHello.cs





















































Hello.cs




























































2、宿主
Hello.svc

Web.config








































3、客户端
Hello.aspx















Hello.aspx.cs






















































Web.config

























运行结果:
单击" btnStartSession"按钮,初始化Session
单击" btnCounter"按钮,Session级别的计数器累加
单击" btnGetSessionId"按钮,获取当前Session的SessionId
单击" btnStopSession"按钮,终止Session
注:
Host中的 wsHttpBinding配置的 receiveTimeout属性为Session的过期时间
OK
[源码下载]