webservice的连接数

using System;using System.Collections;using System.Threading;namespace ThreadExample{    //这是用来保存信息的数据结构，将作为参数被传递    public class SomeState    {　　    public int Cookie;　　    public SomeState(int iCookie)　　    {        Cookie = iCookie;　　    }    }    public class Alpha    {　　public Hashtable HashCount;　　public ManualResetEvent eventX;　　public static int iCount = 0;　　public static int iMaxCount = 0;　　        public Alpha(int MaxCount) 　　{　        HashCount = new Hashtable(MaxCount);　        iMaxCount = MaxCount;　　}　　//线程池里的线程将调用Beta()方法　　public void Beta(Object state)　　{　　    //输出当前线程的hash编码值和Cookie的值　        Console.WriteLine(" {0} {1} :", Thread.CurrentThread.GetHashCode(),((SomeState)state).Cookie);      Console.WriteLine("HashCount.Count=={0}, Thread.CurrentThread.GetHashCode()=={1}", HashCount.Count, Thread.CurrentThread.GetHashCode());      lock (HashCount)       {　　　　    //如果当前的Hash表中没有当前线程的Hash值，则添加之　　　　    if (!HashCount.ContainsKey(Thread.CurrentThread.GetHashCode()))　　      　    HashCount.Add (Thread.CurrentThread.GetHashCode(), 0);　  　　    HashCount[Thread.CurrentThread.GetHashCode()] =             ((int)HashCount[Thread.CurrentThread.GetHashCode()])+1;　    　}          int iX = 2000;          Thread.Sleep(iX);          //Interlocked.Increment()操作是一个原子操作，具体请看下面说明          Interlocked.Increment(ref iCount);          if (iCount == iMaxCount)          {　    　    Console.WriteLine();　　　　    Console.WriteLine("Setting eventX ");　　　　    eventX.Set();   　    }　　  }  }        public class SimplePool        {            public static int Main(string[] args)            {                Console.WriteLine("Thread Pool Sample:");                bool W2K = false;                int MaxCount = 10;//允许线程池中运行最多10个线程                //新建ManualResetEvent对象并且初始化为无信号状态                ManualResetEvent eventX = new ManualResetEvent(false);                Console.WriteLine("Queuing {0} items to Thread Pool", MaxCount);                Alpha oAlpha = new Alpha(MaxCount);                 //创建工作项                //注意初始化oAlpha对象的eventX属性                oAlpha.eventX = eventX;                Console.WriteLine("Queue to Thread Pool 0");                try                {                    //将工作项装入线程池                     //这里要用到Windows 2000以上版本才有的API，所以可能出现NotSupportException异常                    ThreadPool.QueueUserWorkItem(new WaitCallback(oAlpha.Beta), new SomeState(0));                    W2K = true;                }                catch (NotSupportedException)                {                    Console.WriteLine("These API's may fail when called on a non-Windows 2000 system.");                    W2K = false;                }                if (W2K)//如果当前系统支持ThreadPool的方法.                {                    for (int iItem=1;iItem < MaxCount;iItem++)                    {                        //插入队列元素                        Console.WriteLine("Queue to Thread Pool {0}", iItem);                        ThreadPool.QueueUserWorkItem(new WaitCallback(oAlpha.Beta), new SomeState(iItem));                    }                    Console.WriteLine("Waiting for Thread Pool to drain");                    //等待事件的完成，即线程调用ManualResetEvent.Set()方法                    eventX.WaitOne(Timeout.Infinite,true);                    //WaitOne()方法使调用它的线程等待直到eventX.Set()方法被调用                    Console.WriteLine("Thread Pool has been drained (Event fired)");                    Console.WriteLine();                    Console.WriteLine("Load across threads");                    foreach(object o in oAlpha.HashCount.Keys)                        Console.WriteLine("{0} {1}", o, oAlpha.HashCount[o]);                }                Console.ReadLine();                return 0;            }        }    }}