根据代码生成数据库（基于.Net5）

一、引入命名空间

创建项目后，先引入命名空间，创建两个文件夹（Infrastructure和Models）

Startup的代码如下

public class Startup
 { 
     public Startup(IConfiguration configuration)
     {
         Configuration = configuration;
     }
 
     public IConfiguration Configuration { get; }
 
     // This method gets called by the runtime. Use this method to add services to the container.
     public void ConfigureServices(IServiceCollection services)
     {
         services.AddRazorPages();
         services.AddSession();
 
 
         services.AddDbContextPool<AppDbContext>(
             options => options.UseSqlServer("server=.; database=TestDB;Trusted_Connection=true")//Configuration.GetConnectionString())
             );
           
     }
 
     // This method gets called by the runtime. Use this method to configure the HTTP request pipeline.
     public void Configure(IApplicationBuilder app, IWebHostEnvironment env)
     {
         if (env.IsDevelopment())
         {
             app.UseDeveloperExceptionPage();
         }
         else
         {
             app.UseExceptionHandler("/Error");
         }
         app.UseSession();
 
         app.UseStaticFiles();
 
         app.UseRouting();
 
         app.UseAuthorization();
 
         app.UseEndpoints(endpoints =>
         {
             endpoints.MapRazorPages();
         });
     }
 }

二、创建类

创建Student类，代码如下

public class Student
   {
       public int Id { get; set; }
       public string Name { get; set; }
       public string Email { get; set; }
   }

创建AppDbContext类，代码如下

public class AppDbContext : DbContext
  {
      public AppDbContext(DbContextOptions<AppDbContext> options) : base(options)
      {
 
      }
 
      public DbSet<Student> Student { get; set; }
      protected override void OnModelCreating(ModelBuilder modelBuilder)
      {
 
          modelBuilder.Entity<Student>().HasData(
              new Student
              {
                  Email = "41321@qq.com",
                  Id = 1,
                  Name = "Name"
              }
              );
          ;
 
      }
  }