mongodb

https://www.cnblogs.com/qq78292959/category/441865.html

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using MongoDB.Bson;
using MongoDB.Driver;

namespace MongoDB
{
    class Program
    {
        private static List<Product> _Products { get; set; }
        static void Main(string[] args)

        {
            //  Mongo();

            _Products = new List<Product>();
            Task t1 = Task.Factory.StartNew(() =>
            {
                AddProducts();
            });
            Task t2 = Task.Factory.StartNew(() =>
            {
                AddProducts();
            });
            Task t3 = Task.Factory.StartNew(() =>
            {
                AddProducts();
            });

            Task.WaitAll(t1, t2, t3);//同步执行
            Console.WriteLine(_Products.Count);
            Console.ReadLine();

        }
        static void AddProducts()
        {
            Parallel.For(0, 1000, (i) =>
            {
                Product product = new Product();
                product.Name = "name" + i;
                product.Category = "Category" + i;
                product.SellPrice = i;
                _Products.Add(product);
            });

        }

        static public void Mongo()
        {
            //建立连接
            var client = new MongoClient();
            //建立数据库
            var database = client.GetDatabase("TestDb");
            //建立collection
            var collection = database.GetCollection<BsonDocument>("foo");

            var document = new BsonDocument
            {
                {"name","MongoDB"},
                {"type","Database"},
                {"count",1},
                {"info",new BsonDocument{{"x",203},{"y",102}}}
            };
            //插入数据
            collection.InsertOne(document);

            var count = collection.Count(document);
            Console.WriteLine(count);

            //查询数据
            var document1 = collection.Find(document);
            Console.WriteLine(document1.ToString());

            //更新数据
            var filter = Builders<BsonDocument>.Filter.Eq("name", "MongoDB");
            var update = Builders<BsonDocument>.Update.Set("name", "Ghazi");

            collection.UpdateMany(filter, update);

            //删除数据
            var filter1 = Builders<BsonDocument>.Filter.Eq("count", 101);

            collection.DeleteMany(filter1);

            BsonDocument document2 = new BsonDocument();
            document2.Add("name", "MongoDB");
            document2.Add("type", "Database");
            document2.Add("count", "1");

            collection.InsertOne(document2);
        }
    }

    class Product
    {
        public string Name { get; set; }
        public string Category { get; set; }
        public int SellPrice { get; set; }
    }

}