Mongodb 学习笔记(三) .net core SDK

 首先添加 nuget包  mongodb.driver

　创建一个model。

public class student {

    public objectid _id { get; set; }
    public string name { get; set; }
    public int age { get; set; }
    public address address { get; set; }
}
public class address{
    public string province { get; set; }
    public string city { get; set; }
}

　与mongodb建立连接：

　var client = new mongoclient("mongodb://127.0.0.1:27017");   //与mongodb建立连接。
　var db = client.getdatabase("test");　　//获取数据库
　var collection = db.getcollection<bsondocument>("student");   //选择操作集合

　增删改查：

 1  student student = new student()
 2  {
 3  　　name = "lilie",
 4 　　 age = 11,
 5  　　address = new address() { province = "guangdong",city "shenzhen"}
 6  };
 7  
 8  collection.insertone(student.tobsondocument()); //插入数据
 9  var filter = builders<bsondocument>.filter.eq("name", "lilie"); //声明过滤条件
10  var list = collection.find(filter).as<student>().tolist();  //查询数据
11  collection.updateone(filter,builders<bsondocument>.update.set("age", "24")); //更新数据
12  collection.deleteone(filter); //删除数据