EF 迁移数据库

迁移是使用代码生成或修改数据库结构

导入 Microsoft.EntityFrameworkCore.Design可以使用迁移或逆向工程的命令

代码准备

实体类

public class Users
    {
        public int Id { get; set; }
        public string UserName { get; set; }
        public string PassWord { get; set; }
    }

实体类配置

class UsersConfig : IEntityTypeConfiguration<Users>
    {
        public void Configure(EntityTypeBuilder<Users> builder)
        {
            builder.ToTable("T_Users");
        }
    }

DBContext

class MyDbContext : DbContext
    {
        public DbSet<Users> Users { get; set; }

        protected override void OnConfiguring(DbContextOptionsBuilder optionsBuilder)
        {
            base.OnConfiguring(optionsBuilder);
            optionsBuilder.UseMySql("Server=127.0.0.1;port=3306;Database=test;uid=root;pwd=xxxxxx;Character Set=utf8;", new MySqlServerVersion(new Version(8, 0, 21)));
        }

        protected override void OnModelCreating(ModelBuilder modelBuilder)
        {
            base.OnModelCreating(modelBuilder);
            modelBuilder.ApplyConfigurationsFromAssembly(this.GetType().Assembly);
        }
    }

 

初始化迁移

dotnet ef migrations add InitialCreate

按照ef代码迁移架构到数据库

dotnet ef database update

查看数据库