详解如何在ASP.NET Core中应用Entity Framework

CREATE DATABASE TestNetCoreEF 
GO 
USE TestNetCoreEF 
GO 
CREATE TABLE Student( 
  ID int identity primary key, 
  Name nvarchar(50), 
  Age int 
) 
 
INSERT INTO Student VALUES('Bear',18) 
INSERT INTO Student VALUES('Frank',20)

"tools": { 
  "Microsoft.EntityFrameworkCore.Tools": "1.0.0-preview2-final", 
  …………. 
}

Scaffold-DbContext "{Your DB connect string}" Microsoft.EntityFrameworkCore.SqlServer -OutputDir Models

protected override void OnConfiguring(DbContextOptionsBuilder optionsBuilder)
{
  #warning To protect potentially sensitive information in your connection string, you should move it out of source code. See http://go.microsoft./fwlink/?LinkId=723263 for guidance on storing connection strings.
  optionsBuilder.UseSqlServer(@"{your sql connect string}");
}

public static string ConnectionString { get; set; } 
protected override void OnConfiguring(DbContextOptionsBuilder optionsBuilder) 
{ 
  optionsBuilder.UseSqlServer(ConnectionString); 
}

"ConnectionStrings": { 
  "TestNetCoreEF": "Data Source={your sql server host address};Initial Catalog=TestNetCoreEF;user id={your username};password={your password};" 
},

{ 
  "ConnectionStrings": { 
    "TestNetCoreEF": "Data Source={your sql server host address};Initial Catalog=TestNetCoreEF;user id={your username};password={your password};" 
  }, 
  "Logging": { 
    "IncludeScopes": false, 
    "LogLevel": { 
      "Default": "Debug", 
      "System": "Information", 
      "Microsoft": "Information" 
    } 
  } 
}

public void ConfigureServices(IServiceCollection services) 
{ 
  //config the db connection string 
  TestNetCoreEFContext.ConnectionString = Configuration.GetConnectionString("TestNetCoreEF"); 
 
  // Add framework services. 
  services.AddMvc(); 
}

Models.TestNetCoreEFContext context = new Models.TestNetCoreEFContext();

var StudentList = context.Student.ToList();