如何获取UserId的值
我想知道, String sql="SELECT TOP "+countPerPage+" * FROM d_goods WHERE id NOT IN(SELECT TOP "+index+" id FROM d_goods ORDER BY id) and userId=? ORDER BY id";如何去获取userId呢?我老师说要从session里弄..可是哪位大神能给我说明白点呢?万分感谢啊userId是good表里的外键..我想达到的目的是,每个用户登陆之后看到的表不一样...