asp.net后台权限管理

浅浅的花香味﹌ 2021-11-04 11:31 314阅读 0赞

后台权限管理，其实当做过了，了解自己熟悉的模式以后，在做就老马识路了。当然这个有很多种方法。

小弟在此讲解下自己在公司内学到的

首先有管理员表Manager

<table style="border-right:medium none;border-top:medium none;border-left:medium none;border-bottom:medium none;border-collapse:collapse;"> 
 <tbody> 
 <tr> 
 <td style="border-right:1pt solid;border-top:1pt solid;border-left:1pt solid;width:106.5pt;border-bottom:1pt solid;"> &nbsp;MID　　　　</td> 
 <td style="border-right:1pt solid;border-top:1pt solid;border-left:#ece9d8;width:106.5pt;border-bottom:1pt solid;"> &nbsp;MUserName　　</td> 
 <td style="border-right:1pt solid;border-top:1pt solid;border-left:#ece9d8;width:106.55pt;border-bottom:1pt solid;"> &nbsp;MPws</td> 
 <td style="border-right:1pt solid;border-top:1pt solid;border-left:#ece9d8;width:106.55pt;border-bottom:1pt solid;"> &nbsp;GroupID</td> 
 </tr> 
 <tr> 
 <td style="border-right:1pt solid;border-top:#ece9d8;border-left:1pt solid;width:106.5pt;border-bottom:1pt solid;"> &nbsp;1</td> 
 <td style="border-right:1pt solid;border-top:#ece9d8;border-left:#ece9d8;width:106.5pt;border-bottom:1pt solid;"> &nbsp;aa</td> 
 <td style="border-right:1pt solid;border-top:#ece9d8;border-left:#ece9d8;width:106.55pt;border-bottom:1pt solid;"> &nbsp;aa</td> 
 <td style="border-right:1pt solid;border-top:#ece9d8;border-left:#ece9d8;width:106.55pt;border-bottom:1pt solid;"> &nbsp;1000</td> 
 </tr> 
 <tr> 
 <td style="border-right:1pt solid;border-top:#ece9d8;border-left:1pt solid;width:106.5pt;border-bottom:1pt solid;"> &nbsp;2</td> 
 <td style="border-right:1pt solid;border-top:#ece9d8;border-left:#ece9d8;width:106.5pt;border-bottom:1pt solid;"> &nbsp;bb</td> 
 <td style="border-right:1pt solid;border-top:#ece9d8;border-left:#ece9d8;width:106.55pt;border-bottom:1pt solid;"> &nbsp;bb</td> 
 <td style="border-right:1pt solid;border-top:#ece9d8;border-left:#ece9d8;width:106.55pt;border-bottom:1pt solid;"> &nbsp;1001</td> 
 </tr> 
 </tbody> 
</table>

有个权限表Group

<table style="border-right:medium none;border-top:medium none;border-left:medium none;border-bottom:medium none;border-collapse:collapse;"> 
 <tbody> 
 <tr> 
 <td style="border-right:1pt solid;border-top:1pt solid;border-left:1pt solid;width:106.5pt;border-bottom:1pt solid;"> &nbsp;GroupID</td> 
 <td style="border-right:1pt solid;border-top:1pt solid;border-left:#ece9d8;width:106.5pt;border-bottom:1pt solid;"> &nbsp;GroupName</td> 
 <td style="border-right:1pt solid;border-top:1pt solid;border-left:#ece9d8;width:232px;border-bottom:1pt solid;"> &nbsp;GroupInfo（有哪些权限）</td> 
 <td style="border-right:1pt solid;border-top:1pt solid;border-left:#ece9d8;width:106.55pt;border-bottom:1pt solid;"> &nbsp;</td> 
 </tr> 
 <tr> 
 <td style="border-right:1pt solid;border-top:#ece9d8;border-left:1pt solid;width:106.5pt;border-bottom:1pt solid;"> &nbsp;1000</td> 
 <td style="border-right:1pt solid;border-top:#ece9d8;border-left:#ece9d8;width:106.5pt;border-bottom:1pt solid;"> &nbsp;技术部</td> 
 <td style="border-right:1pt solid;border-top:#ece9d8;border-left:#ece9d8;border-bottom:1pt solid;"> &nbsp;AddNews|EditNews|DeleteNews</td> 
 <td style="border-right:1pt solid;border-top:#ece9d8;border-left:#ece9d8;width:106.55pt;border-bottom:1pt solid;"> &nbsp;</td> 
 </tr> 
 <tr> 
 <td style="border-right:1pt solid;border-top:#ece9d8;border-left:1pt solid;width:106.5pt;border-bottom:1pt solid;"> &nbsp;1001</td> 
 <td style="border-right:1pt solid;border-top:#ece9d8;border-left:#ece9d8;width:106.5pt;border-bottom:1pt solid;"> &nbsp;客服部</td> 
 <td style="border-right:1pt solid;border-top:#ece9d8;border-left:#ece9d8;border-bottom:1pt solid;"> &nbsp;AddNews|EditNews</td> 
 <td style="border-right:1pt solid;border-top:#ece9d8;border-left:#ece9d8;width:106.55pt;border-bottom:1pt solid;"> &nbsp;</td> 
 </tr> 
 </tbody> 
</table>

有个操作表Control

<table style="border-right:medium none;border-top:medium none;border-left:medium none;border-bottom:medium none;border-collapse:collapse;"> 
 <tbody> 
 <tr> 
 <td style="border-right:1pt solid;border-top:1pt solid;border-left:1pt solid;width:106.5pt;border-bottom:1pt solid;"> &nbsp;CID</td> 
 <td style="border-right:1pt solid;border-top:1pt solid;border-left:#ece9d8;border-bottom:1pt solid;"> &nbsp;CName</td> 
 <td style="border-right:1pt solid;border-top:1pt solid;border-left:#ece9d8;width:106.55pt;border-bottom:1pt solid;"> &nbsp;CInfo</td> 
 </tr> 
 <tr> 
 <td style="border-right:1pt solid;border-top:#ece9d8;border-left:1pt solid;width:106.5pt;border-bottom:1pt solid;"> &nbsp;1</td> 
 <td style="border-right:1pt solid;border-top:#ece9d8;border-left:#ece9d8;width:158px;border-bottom:1pt solid;"> &nbsp;AddNews</td> 
 <td style="border-right:1pt solid;border-top:#ece9d8;border-left:#ece9d8;width:106.55pt;border-bottom:1pt solid;"> &nbsp;增加新闻</td> 
 </tr> 
 <tr> 
 <td style="border-right:1pt solid;border-top:#ece9d8;border-left:1pt solid;width:106.5pt;border-bottom:1pt solid;"> &nbsp;2</td> 
 <td style="border-right:1pt solid;border-top:#ece9d8;border-left:#ece9d8;border-bottom:1pt solid;"> &nbsp;EditNews</td> 
 <td style="border-right:1pt solid;border-top:#ece9d8;border-left:#ece9d8;width:106.55pt;border-bottom:1pt solid;"> &nbsp;修改新闻</td> 
 </tr> 
 <tr> 
 <td style="border-right:1pt solid;border-top:#ece9d8;border-left:1pt solid;width:106.5pt;border-bottom:1pt solid;"> &nbsp;3</td> 
 <td style="border-right:1pt solid;border-top:#ece9d8;border-left:#ece9d8;border-bottom:1pt solid;"> &nbsp;DeleteNews</td> 
 <td style="border-right:1pt solid;border-top:#ece9d8;border-left:#ece9d8;width:106.55pt;border-bottom:1pt solid;"> &nbsp;删除新闻</td> 
 </tr> 
 </tbody> 
</table>

好了，表建好了。接下来是代码部分

小弟对生命周期也不是很了解，只懂得其中的一些

首先我们创建一个类。由于每个页面都要判断是否有操作权限，如果用session或cookie在页面判断的话也可以，不过这样相对增加代码量，也可以用HttpModule来做

这里介绍的是继承类

创建一个类为Manager:System.Ui.Page

然后在Manager类里重写Onload()方法。（在页面执行时由于有继承类，会先执行父类）

在Onload方法里我们可以通过登陆时获得的用户名去查找到对应的GroupID.

然后由GroupID得到相应的GroupInfo权限。这时我们可以通过split('|')然后在循环判断。这时有个问题了。那得到的权限要和哪里对比呢？

这时我们就要通过重写另一个方法了！OnInit方法（在页面中重写）

通过重写OnInit方法

this.ID="AddNews";//表示为这个页面是增加新闻页面

然后我们接上面的话题