日期:2014-05-18  浏览次数:20794 次

System.Timers.timer window服务 如何单线程计时???
System.Timers.timer 这个会引发多线程并发,我需要它监督某某时间发邮件,它发了n份,如何控制这个Timer多线程????

------解决方案--------------------
那就自己写单线程或者某一时间只能单线程访问的事件加锁
------解决方案--------------------
这是个演示的例子,多线程定时循环向queue中添加消息,timer定时从queue取出消息。

C# code
        static void Main(string[] args)
        {
            List<Thread> threadlist = new List<Thread>();
            for (int i = 0; i < 5; i++)
            {
                Thread th = new Thread(new ParameterizedThreadStart(Func));
                threadlist.Add(th);
            }
            isStop = false;
            for (int i = 0; i < threadlist.Count; i++)
            {
                threadlist[i].Start(i);
                Console.WriteLine("线程"+i.ToString()+"已经启动...");
            }
            Timer timer = new Timer(new TimerCallback(timerFun),null,0,1000);


        }
        static bool isStop = true;
        static Queue<string> queue = new Queue<string>();
        static void Func(object obj)
        {
            int index = (int)obj;

            while (!isStop)
            {
                lock (queue)
                {
                    queue.Enqueue("现在时间" + DateTime.Now.ToString());
                }
                Thread.Sleep(1000);
            }
        }

        static void timerFun(object obj)
        {
            lock (queue)
            {
                if (queue.Count > 0)
                {
                    string s = queue.Dequeue();
                    Console.WriteLine("取出消息:" + s);
                }
            }
        }