一.数据库//父类表CREATE TABLE [dbo].[types](
[id] [int] IDENTITY(1,1) NOT NULL,
[t_id] [int] NOT NULL,
[t_name] [varchar](20) NOT NULL,
PRIMARY KEY CLUSTERED
(
[id] ASC
)WITH (PAD_INDEX = OFF, STATISTICS_NORECOMPUTE = OFF, IGNORE_DUP_KEY = OFF, ALLOW_ROW_LOCKS = ON, ALLOW_PAGE_LOCKS = ON) ON [PRIMARY]
) ON [PRIMARY]
GO//子类表 CREATE TABLE [dbo].[goods_type]( [id] [int] IDENTITY(1,1) NOT NULL,
[gt_id] [int] NULL,
[gt_name] [varchar](20) NOT NULL,
[t_id] [int] NULL,
PRIMARY KEY CLUSTERED
(
[id] ASC
)WITH (PAD_INDEX = OFF, STATISTICS_NORECOMPUTE = OFF, IGNORE_DUP_KEY = OFF, ALLOW_ROW_LOCKS = ON, ALLOW_PAGE_LOCKS = ON) ON [PRIMARY]
) ON [PRIMARY]二.实现菜单功能如下-女装 --耐克-男装 --耐克 耐克-首饰 --女首饰要求加载首页时全部显示。起初的思路是通过多表联查,再将结果加入到session中,结果出现父类栏两个男装,后面弄了两个集合,一个集合查询的是标题栏父类表结果,另一个是子菜单结果,结果是子菜单结果在每个父类栏出现。折腾挺久了,求大神给个思路,谢谢!
[id] [int] IDENTITY(1,1) NOT NULL,
[t_id] [int] NOT NULL,
[t_name] [varchar](20) NOT NULL,
PRIMARY KEY CLUSTERED
(
[id] ASC
)WITH (PAD_INDEX = OFF, STATISTICS_NORECOMPUTE = OFF, IGNORE_DUP_KEY = OFF, ALLOW_ROW_LOCKS = ON, ALLOW_PAGE_LOCKS = ON) ON [PRIMARY]
) ON [PRIMARY]
GO//子类表 CREATE TABLE [dbo].[goods_type]( [id] [int] IDENTITY(1,1) NOT NULL,
[gt_id] [int] NULL,
[gt_name] [varchar](20) NOT NULL,
[t_id] [int] NULL,
PRIMARY KEY CLUSTERED
(
[id] ASC
)WITH (PAD_INDEX = OFF, STATISTICS_NORECOMPUTE = OFF, IGNORE_DUP_KEY = OFF, ALLOW_ROW_LOCKS = ON, ALLOW_PAGE_LOCKS = ON) ON [PRIMARY]
) ON [PRIMARY]二.实现菜单功能如下-女装 --耐克-男装 --耐克 耐克-首饰 --女首饰要求加载首页时全部显示。起初的思路是通过多表联查,再将结果加入到session中,结果出现父类栏两个男装,后面弄了两个集合,一个集合查询的是标题栏父类表结果,另一个是子菜单结果,结果是子菜单结果在每个父类栏出现。折腾挺久了,求大神给个思路,谢谢!
在Struts中不知道怎么弄,第一张表我查出父类的,第二张查出子类,但是不知道怎么处理了。
在Struts中不知道怎么弄,第一张表我查出父类的,第二张查出子类,但是不知道怎么处理了。给你说一个比较笨的方法,一个sql查出父类,多个sql分别查出对应的子类,分别存到不同的list中,然后在前台foreach那些list就行
GROUP BY father.tid;
group by types.t_id