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