数据库不存在时重新创建数据库:

Database.SetInitializer
     
      (new DropCreateDatabaseAlways
      
       ());
      
     

 

 每次启动应用程序时创建数据库:

Database.SetInitializer
     
      (new CreateDatabaseIfNotExists
      
       ());
      
     

 

模型更改时重新创建数据库:

Database.SetInitializer
     
      (new DropCreateDatabaseIfModelChanges
      
       ());
      
     

 

从不创建数据库:

Database.SetInitializer
     
      (null);
     

 

 

在EF自动生成的Context文件中添加如下：

using System.Data.Entity;using System.Data.Entity.Infrastructure;using Web.Models.Mapping;namespace Web.Models{    public class testContext : DbContext    {        static testContext()        {            Database.SetInitializer
     
      (null);        }        public testContext()            : base("Name=testContext")        {        }        public DbSet
      
        People { get; set; }        protected override void OnModelCreating(DbModelBuilder modelBuilder)        {            modelBuilder.Configurations.Add(new PersonMap());        }    }}