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Asp Net Core Fro MongoDB Part1

"没有时间了!"

本次学习mongoDB,参考了如下文章:

Using MongoDB with ASP.NET Core – Part II (Implementation)

   

来自 <https://www.janaks.com.np/using-mongodb-with-aspnet-core-ii/>

   

MongoDB学习笔记() 通过samus驱动实现基本数据操作

   

来自 <http://www.cnblogs.com/lipan/archive/2011/03/08/1977691.html>

   

   

略去如何安装和调试MongoBD,可参见上述两个文章。

   

   

  在进行下述操作之前,请先确定MongoDB服务已经开启,不知道怎么开启服务,请看MongoDB的安装和配置。

下载驱动,新建控制台项目(.net Core)

   

技术分享

   

并添加对MongoDB.dll的引用,nuget 搜MongoDB(当前版本2.4.3)。

private IMongoDatabase _database;

private string _connStr = "mongodb://localhost:27017";

private string _dbName = "VesselDB";

   

//创建数据库代理类,链接数据库

public VesselRepository()

{

var client = new MongoClient(_connStr);

_database = client.GetDatabase(_dbName);

}

     

 //定义一个对象

   

public class Vessel

{

[BsonId]

public int IMO { get; set; }

[BsonElement("VesselName")]

public string Name { get; set; }

[BsonElement("PortOfRegistry")]

public string Registry { get; set; }

[BsonElement("YearofBuilt")]

public DateTime YearOfBuilt { get; set; }

}

   

   

//增改删查方法

// AddMethod

public void AddVessel(Vessel vsl)

{

_database.GetCollection<Vessel>("Vessels").InsertOne(vsl);

}

// DeletedMethod

   

public void DeleteVessel(string vslName)

{

var filter = Builders<Vessel>.Filter.Eq(vsl => vsl.Name, vslName);

_database.GetCollection<Vessel>("Vessels").DeleteOne(filter);

}

   

// GetMentod

public IEnumerable<Vessel> GetAllVessels()

{

return _database.GetCollection<Vessel>("Vessels").Find(FilterDefinition<Vessel>.Empty).ToList();

}

   

// UpdateMethod

public void UpdateVessel(int imo, Vessel vsl)

{

var filter = Builders<Vessel>.Filter.Eq(v => v.IMO, imo);

var update = Builders<Vessel>.Update

.Set(v => v.Name, vsl.Name)

.Set(v => v.Registry, vsl.Registry)

.Set(v => v.YearOfBuilt, vsl.YearOfBuilt);

_database.GetCollection<Vessel>("Vessels").UpdateOne(filter, update);

}

   

完美运行起来了。

Asp Net Core Fro MongoDB Part1