public static void Count()
{
var db = new GetMongoDB().GetDB();
IMongoCollection <users> collection = db.GetCollection <users>("users");
var result = collection.Find <users>(t => true).Count();
Console.WriteLine("总记录数为：" + result);
}
public static void Delete()
{
var db = new GetMongoDB().GetDB();
IMongoCollection <users> collection = db.GetCollection <users>("users");
DeleteResult result = collection.DeleteMany(t => true);
if (result.DeletedCount > 0)
{
Console.WriteLine("数据删除成功");
}
else
{
Console.WriteLine("数据删除失败");
}
}
public static void Insert()
{
var db = new GetMongoDB().GetDB();
IMongoCollection <users> collection = db.GetCollection <users>("users");
int n = 10000;
//const int threadNum = 2;
Stopwatch sw = new Stopwatch();
sw.Start();
//并行
var po = new ParallelOptions
{
MaxDegreeOfParallelism = 5 // 设置最大的线程数3，仔细观察线程ID变化
};
Parallel.For(0, n, po, (i) =>
{
Console.WriteLine("线程id为：" + Thread.CurrentThread.ManagedThreadId.ToString());
users user = new users()
{
id = Guid.NewGuid().ToString(),
name = "MongoDB分片集群实战",
password = "******",
age = i + 2,
createtime = DateTime.Now
};
collection.InsertOne(user);
});
//并发
//List<Task> taskList = new List<Task>();
//TaskFactory taskFactory = new TaskFactory();
//for (int j = 0; j < threadNum; j++)
//{
// int i;
// taskList.Add(taskFactory.StartNew(() =>
// {
// Console.WriteLine("线程id为：" + Thread.CurrentThread.ManagedThreadId.ToString());
// for (i = 0; i < n; i++)
// {
// users user = new users()
// {
// id = Guid.NewGuid().ToString(),
// name = "MongoDB分片集群实战",
// password = "******",
// age = i + 2,
// createtime = DateTime.Now
// };
// collection.InsertOne(user);
// }
// }));
//}
//Task[] tasks = new Task[threadNum];
//for (int j = 0; j < threadNum; j++)
//{
// Console.WriteLine("第" + (j + 1) + "个线程");
// int i;
// tasks[j] = Task.Factory.StartNew(() =>
// {
// Console.WriteLine("线程id为：" + Thread.CurrentThread.ManagedThreadId.ToString());
// for (i = 1; i < n; i++)
// {
// lock (objectLock)
// {
// users user = new users()
// {
// id = Guid.NewGuid().ToString(),
// name = "MongoDB分片集群实战",
// password = "******",
// age = i + 2,
// createtime = DateTime.Now
// };
// collection.InsertOne(user);
// }
// }
// });
//}
//try
//{
// // Wait for all the tasks to finish.
// Task.WaitAll(taskList.ToArray());
// // We should never get to this point
// Console.WriteLine("WaitAll() has not thrown exceptions. THIS WAS NOT EXPECTED.");
//}
//catch (AggregateException e)
//{
// Console.WriteLine("\nThe following exceptions have been thrown by WaitAll(): (THIS WAS EXPECTED)");
// for (int j = 0; j < e.InnerExceptions.Count; j++)
// {
// Console.WriteLine("\n-------------------------------------------------\n{0}", e.InnerExceptions[j].ToString());
// }
//}
sw.Stop();
long totalTime = sw.Elapsed.Seconds;
Console.WriteLine("总耗时为：" + totalTime.ToString());
Console.WriteLine(n + "条数据插入成功");
}