如果要在程序中使用DbContext,则需要先在Nuget中安装Microsoft.EntityFrameworkCore.SqlServer
using ConsoleApp1.EntityFrameworkCore;
using Microsoft.EntityFrameworkCore;
using Microsoft.Extensions.DependencyInjection;
using System;
using ConsoleApp1.BusinessLogic; namespace ConsoleApp1
{
class Program
{
static void Main(string[] args)
{
Startup();
Console.WriteLine("Hello World!");
} private static void Startup()
{
var services = new ServiceCollection();
var connectionString = "Data Source=localhost;Initial Catalog=TestDB;User ID=sa;Password=123;";
services.AddDbContext<MyDbContext>(options => options.UseSqlServer(connectionString)); services.AddScoped<IDatabaseBO, DatabaseBO>();
var provider = services.BuildServiceProvider();
using (var serviceScope = provider.CreateScope())
{
var serviceProvider = serviceScope.ServiceProvider;
var databaseBO = serviceProvider.GetService<IDatabaseBO>();
databaseBO.GenerateData();
}
}
}
}