1 [Table("Blogs")]
 2     public class Blog
 3     {
 4         [Column("BlogId")]
 5         public int Id { get; set; }
 6 
 7         [Column("BlogName")]
 8         public string Name { get; set; }
 9 
10         [Column("BlogTitle")]
11         public string Title { get; set; }
12 
13         [Column("BlogBody")]
14         public string Body { get; set; }
15 
16         public string Summery { get; set; }
17 
18         [Column("BlogCreateDate")]
19         public DateTime CreateDate { get; set; }
20 
21         public int UserId { get; set; }
22 
23         public User User { get; set; }
24 
25         public virtual ICollection<Comment> Comment { get; set; }
26 
27         public virtual ICollection<Category> Category { get; set; }
28 
29     }

 1 public class User
 2     {
 3         [Column("UserId")]
 4         public int Id { get; set; }
 5 
 6         public string UserLoginName { get; set; }
 7 
 8         public string UserPwd { get; set; }
 9 
10         [Column("UserName")]
11         public string Name { get; set; }
12 
13         public string NickName { get; set; }
14 
15         [Column("UserCreateDate")]
16         public DateTime CreateDate { get; set; }
17 
18         public string EMail { get; set; }
19 
20         public virtual ICollection<Blog> Blog { get; set; }
21 
22         public virtual ICollection<Comment> Comment { get; set; }
23     }

 1         protected override void OnModelCreating(DbModelBuilder modelBuilder)
 2         {
 3             //entity framework实体关系总结
 4             //http://www.cnblogs.com/dudu/tag/Entity%20Framework%20%E5%AE%9E%E8%B7%B5%E7%B3%BB%E5%88%97/
 5 
 6             //一个user有多个blog文章
 7             modelBuilder.Entity<User>()
 8                 .HasMany<Blog>(e => e.Blog)
 9                 .WithRequired(p => p.User);
10 
11             //blog和comment一对多的关系
12             modelBuilder.Entity<Blog>()
13                 .HasMany<Comment>(b => b.Comment)
14                 .WithRequired(c => c.Blog);
15 
16             //blog和category多对多关系
17             modelBuilder.Entity<Blog>()
18                 .HasMany(b => b.Category)
19                 .WithMany(c => c.Blog)
20                 .Map(m => {
21                     m.MapLeftKey("BlogId");
22                     m.MapRightKey("CategoryId");
23                     m.ToTable("Blog_Category");
24                 });
25 
26             modelBuilder.Conventions.Remove<PluralizingTableNameConvention>();
27         }