化零为整WCF(11) - 会话状态(Session)
[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
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]
[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
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();
}
}
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;
}
}
}
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>
<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>
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();
}
}
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>
<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]