CodeFirst

1.第一步，创建实体类。

namespace MyMusicStore.Entities

{

    /// <summary>

    /// Song

    /// </summary>

    public class Song

    {

        public int id { get; set; }

        public string name { get; set; }

        public string address { get; set; }

        public string singer { get; set; }

        public string age { get; set; }

        public string type { get; set; }

        public string datatype { get; set; }

        public string length { get; set; }

    }

}

　　2.创建Context上下文：

namespace MyMusicStore.Context

{

    /// <summary>

    /// Context Class

    /// </summary>

   public class MusicContext:DbContext

    {

       public DbSet<Song> songs { get; set; }

    }

}

　　3.设置数据库连接字符串

<connectionStrings>

    <add name="MusicContext" providerName="System.Data.SqlClient" connectionString="Data Source=(LocalDb)\v11.0;Initial Catalog=MyMusicStore;Integrated Security=SSPI;AttachDBFilename=|DataDirectory|\aspnet-MyMusicStore.UI-20130227200923.mdf" />

  </connectionStrings>

　　4.数据库数据初始化