化零为整WCF - 会话状态(Session)

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;
}
}
}