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

namespace MongoDBDemo
{
    class Program
    {
        // 定義接口
        protected static IMongoDatabase _database;
        // 定義客戶端
        protected static IMongoClient _client;
        static void Main(string[] args)
        {
            // 定義要查詢的集合名稱
            const string collectionName = "Student";
            // 讀取連接字符串
            string strCon = ConfigurationManager.ConnectionStrings["mongodbConn"].ConnectionString;
            var mongoUrl = new MongoUrlBuilder(strCon);
            // 獲取數(shù)據(jù)庫(kù)名稱
            string databaseName = mongoUrl.DatabaseName;
            // 創(chuàng)建并實(shí)例化客戶端
            _client = new MongoClient(mongoUrl.ToMongoUrl());
            //  根據(jù)數(shù)據(jù)庫(kù)名稱實(shí)例化數(shù)據(jù)庫(kù)
            _database = _client.GetDatabase(databaseName);
            // 根據(jù)集合名稱獲取集合
            var collection= _database.GetCollection<BsonDocument>(collectionName);
            var filter = new BsonDocument();
            // 查詢集合中的文檔
            var list = Task.Run(async () => await collection.Find(filter).ToListAsync()).Result;
            // 循環(huán)遍歷輸出
            list.ForEach(p =>
            {
                Console.WriteLine("編號(hào)：" + p["stuId"] + ",姓名：" + p["name"].ToString() + ",年齡:"+p["age"].ToString() + ",課程："+p["subject"].ToString() + ",成績(jī)："+p["score"].ToString());
            });

            Console.ReadKey();
        }
    }
}