管理权限——按钮粒度

在WEB 系统中的按钮定位到具体的某个按钮——增删改查、浏览

用户表                     用户角色表       用户权限表
user(                       user_role(        user_power( 
id int,                       id int,               id int,     
username text,       userID int,        userID int, 
password text,       roleID int,         powerID int,
logintime long,        )                       )           
logouttime long,
)
角色表                                                     权限彪
role(                                                       power(                                 
id int,                                                      id int, 
a_table text,//标记a表的增删改查、浏览    a_table text,//标记a表的增删改查、浏览 
b_table text,                                          b_table text,                          
c_table text                                            c_table text                           
)                                                              )    
a_table(     b_table(          c_table(
             )                 )                     )     

每个表都有增、删、改、查、浏览  5个操作,通过“用户权限表”这样就知道某个用户是否有某张表的操作权限,同样的角色也是这样控制

                                 

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转载自hbiao68.iteye.com/blog/1250547