.Net 6 使用Code Frist EF简单数据迁移

标签：Code get Frist builder EF set Services using public

1.定义  EF Code First 上下文 StuContext 类 和一个类 作为模型 

映射字段 

　　 using System.Data.Entity;
    using System.Collections.Generic;
    using System.ComponentModel.DataAnnotations;
    using System.Data.Entity.Infrastructure;

    namespace MigrationsDemo
    {
        public class StuContext : DbContext
        {
            public DbSet<Student> Students { get; set; }
        }

　　　　 public class Student
    　　 {
        　　[Key]
        　　public int Id { get; set; }
       　　 public string Name { get; set; }
        　　public int Sex { get; set; }
    　　}

 }

 

2. Nuget包下载

 

安装包为6.0版本即可 5.0版本可能报错

3.配置链接字符串

{
  "Logging": {
    "LogLevel": {
      "Default": "Information",
      "Microsoft.AspNetCore": "Warning"
    }
  },
  "AllowedHosts": "*",
  //配置链接字符串
  "ConnectionStrings": {
    "sql": "Data Source=.;Initial Catalog=Db1208;Integrated Security=True"
  }
}

 

 

 

 4. 在Program.cs中添加DbContext服务

using Microsoft.EntityFrameworkCore;

var builder = WebApplication.CreateBuilder(args);

// Add services to the container.

builder.Services.AddControllers();
// Learn more about configuring Swagger/OpenAPI at https://aka.ms/aspnetcore/swashbuckle
builder.Services.AddEndpointsApiExplorer();
builder.Services.AddSwaggerGen();

//.添加DbContext服务
builder.Services.AddDbContext<MyDbContext>(options =>
options.UseSqlServer(builder.Configuration.GetConnectionString("sql")));

　　

5.在工具中 选择 Nuget包管理器=》程序包管理器控制台

 

 

 

 

 

标签：Code,get,Frist,builder,EF,set,Services,using,public
From： https://www.cnblogs.com/sunyunsheng/p/16968407.html