求助，这么写在IIS线程池中是否可行？

Question

        /// <summary>
        /// 数据库编号
        /// </summary>
        private static Dictionary<int, int> connNo = new Dictionary<int, int>();        /// <summary>
        /// 数据库编号
        /// </summary>
        public static int ConnNo
        {
            set
            {
                if (connNo.Count() > 1000)
                {
                    connNo.Clear();
                }
                int tid = Thread.CurrentThread.ManagedThreadId;
                if (connNo.ContainsKey(tid))
                {
                    connNo[tid] = value;
                }
                else
                {
                    connNo.Add(tid, value);
                }
            }
            get
            {
                int tid = Thread.CurrentThread.ManagedThreadId;
                if (connNo.ContainsKey(tid))
                {
                    return connNo[tid];
                }
                return 1;
            }
        }

Answer 1

1、取决你要Thread.CurrentThread.ManagedThreadId作什么，注意它不能代表Session。
2、多线程中要同步对Dictionary的存取（要使用Lock）。

Answer 2

ManagedThreadId关键在于这个是啥

Answer 3

线程池回收的线程再利用时，
ManagedThreadId会不会和这个线程以前用的ManagedThreadId重复？