Beispiel #1
0
        private void button1_Click(object sender, EventArgs e)
        {
            if (button1.Text.Equals("插入数据"))
            {
                tokenSource  = new CancellationTokenSource();
                token        = tokenSource.Token;
                button1.Text = "停止插入";
                ThreadPool.QueueUserWorkItem(p =>
                {
                    List <Task> tasks   = new List <Task>();
                    TaskFactory factory = new TaskFactory();
                    for (int i = 0; i < 5; i++)
                    {
                        Task task = factory.StartNew(() =>
                        {
                            while (true)
                            {
                                token.ThrowIfCancellationRequested();
                                Student stu = new Student()
                                {
                                    Name = Names[new Random().Next() % Names.Count()] +
                                           Names[new Random().Next(DateTime.Now.Millisecond) % Names.Count()],
                                    Age = new Random().Next() % 100
                                };
                                try
                                {
                                    SqlHelper.Insert <Student>(stu, typeof(Student).Name);
                                    IndexHelper.CreateInstance().InsertIndex(stu);
                                }
                                catch (Exception exception)
                                {
                                    log.Error("Error:", exception);
                                }
                            }
                        });

                        tasks.Add(task);
                    }
                    try
                    {
                        Task.WaitAll(tasks.ToArray(), token);
                    }
                    catch
                    {
                    }
                });
            }
            else
            {
                button1.Text = "插入数据";
                tokenSource.Cancel();
                IndexHelper.CreateInstance().MergeIndex();
            }
        }
Beispiel #2
0
        public static IndexHelper CreateInstance()
        {
            Object obj = new Object();

            lock (obj)
            {
                if (instance == null)
                {
                    lock (obj)
                    {
                        instance = new IndexHelper();
                    }
                }
            }
            return(instance);
        }