.NET Core使用EF生成数据库出错的解决方法_实用技巧_

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public class ApplicationDbContext : IdentityDbContext { public ApplicationDbContext(DbContextOptions options) : base(options) { } public virtual DbSet Users { get; set; } public virtual DbSet Roles { get; set; } public virtual DbSet Groups { get; set; } public virtual DbSet GroupRoles { get; set; } public virtual DbSet Logs { get; set; } public virtual DbSet LogDetails { get; set; } protected override void OnConfiguring(DbContextOptionsBuilder optionsBuilder) => optionsBuilder.UseSqlServer( @"Data Source=.;Initial Catalog=DotNetCore;Persist Security Info=True;User ID=sa;Password=25423456;"); protected override void OnModelCreating(ModelBuilder modelBuilder) { modelBuilder.Entity() .HasOne(d => d.Group) .WithMany(t => t.Users) .HasForeignKey(d => d.GroupId) .OnDelete(DeleteBehavior.Cascade); } }

有了模型后，即可通过迁移创建数据库。 运行 dotnet ef migrations add InitialCreate 以为迁移搭建基架，并为模型创建一组初始表。 运行 dotnet ef database update 以将新迁移应用到数据库。 在应用迁移之前，此命令可创建数据库。