Feature是MOSS中一个重要的东西,Feature 使得基于sharepoint的用户功能定制变得简单和方便。我们使用Feature来实现网站的MasterPage的更换。写一个方法,继承SPFeatureReceiver这个抽象类,实现抽象方法即可。四个方法:FeatureActivated,FeatureDeactivating,FeatureInstalled,FeatureUninstalling,分别是激活反激活,安装反安装对应的事件。我们实现FeatureActivated和FeatureDeactivating的方法。代码如下:
1
public
class
MySiteFeature : SPFeatureReceiver
2
{
3 public override void FeatureActivated(SPFeatureReceiverProperties properties)
4 {
5 this.ChangeMasterPage(properties, FeatureActiveAction.Change);
6 }
7
8 public override void FeatureDeactivating(SPFeatureReceiverProperties properties)
9 {
10 this.ChangeMasterPage(properties, FeatureActiveAction.UnChange);
11 }
12
13 public override void FeatureInstalled(SPFeatureReceiverProperties properties)
14 {
15 //this.ChangeMasterPage(properties, FeatureActiveAction.Change);
16 }
17
18 public override void FeatureUninstalling(SPFeatureReceiverProperties properties)
19 {
20 //this.ChangeMasterPage(properties, FeatureActiveAction.UnChange);
21 }
22
23 private void ChangeMasterPage(SPFeatureReceiverProperties properties, FeatureActiveAction action)
24 {
25 if(properties == null)
26 {
27 return;
28 }
29 try
30 {
31 string newMaster = properties.Feature.Properties["NewMasterPage"].Value;
32 if(!string.IsNullOrEmpty(newMaster))
33 {
34 using(SPSite site = properties.Feature.Parent as SPSite)
35 {
36 if(site == null)
37 {
38 return;
39 }
40
41 using(SPWeb web = properties.Feature.Parent as SPWeb)
42 {
43 if(web == null)
44 {
45 return;
46 }
47 string tpl = web.WebTemplate.ToUpper();
48
49 //如果为MySite定制的话,使用如下代码判断是个人网站/宿主
50 //if(tpl != "SPSPERS" && tpl != "SPSMSITEHOST")
51 //{
52 // return;
53 //}
54 string master = web.MasterUrl;
55 if(action == FeatureActiveAction.Change && master.Contains("default.master"))
56 {
57 web.MasterUrl = Regex.Replace(master, "default.master", newMaster, RegexOptions.IgnoreCase);
58 }
59 else if(action == FeatureActiveAction.UnChange && master.Contains(newMaster))
60 {
61 web.MasterUrl = Regex.Replace(master, newMaster, "default.master", RegexOptions.IgnoreCase);
62 }
63 else
64 {
65 return;
66 }
67 web.Update();
68 }
69 }
70 }
71 }
72 catch(Exception ex)
73 {
74 //记录日志等。EventLog.WriteEntry("ChangeMasterPage", ex.Message);
75 }
76 }
77}
78
enum
FeatureActiveAction
79
{
80 Change,
81 UnChange
82}
到这里代码部分就写好了。加强签名,然后扔到GAC里。然后进行下一步,建一个Feature.xml。我们可以将Feature定义在几个范围上:Farm(服务器场),WebApplication(Web应用),Site(网站集),Web(网站),但通常定义在网站集或网站范围上。我们的Feature.xml内容如下:
<?
xml version="1.0" encoding="utf-8"
?>
<
Feature
xmlns
="http://schemas.microsoft.com/sharepoint/"
Id
="3b387ef0-01c7-4980-bfa2-e6d37b986bac"
Title
="change my masterpage"
Description
="change my masterpage"
Scope
="Site"
ReceiverAssembly
="MySiteFeatureManager, Version=1.0.0.0, Culture=neutral, PublicKeyToken=7c96adf2aa593794"
ReceiverClass
="MySiteFeatureManager.MySiteFeature"
>
<
ElementManifests
>
<
ElementFile
Location
="NewMasterPage.master"
/>
<
ElementManifest
Location
="element.xml"
/>
</
ElementManifests
>
<
Properties
>
<
Property
Key
="NewMasterPage"
Value
="NewMasterPage.master"
/>
</
Properties
>
</
Feature
>
属性介绍:
Id:Guid格式,这个可以使用VS2005或者别的工具来生成一个。
Title:Feature的标题。
Description:Feature的内容描述。
Scope:Feature的功能范围(Farm,WebApplication,Site,Web)
ReceiverAssembly:引用的程序集
ReceiverClass:引用程序集的类
ElementManifests这里我们可以看到<ElementFile Location="NewMasterPage.master"/>,所以我们在同一文件夹放一个NewMasterPage.master,masterpage注意问题请查阅相关文章;还有<ElementManifest Location="element.xml"/>,所以还要在同一文件夹放一element.xml文件,这个文件的内容如下:
<?
xml version="1.0" encoding="utf-8"
?>
<
Elements
xmlns
="http://schemas.microsoft.com/sharepoint/"
>
<
Module
Name
="NewMasterPage"
RootWebOnly
="true"
Url
="_catalogs/masterpage"
>
<
File
Url
="NewMasterPage.master"
Type
="GhostableInLibrary"
/>
</
Module
>
</
Elements
>
这里的意思是告诉它,我们的NewMasterPage.master上传到了哪个目录。
这里<ElementManifest Location="element.xml"/>的element.xml文件名可以随便自己写,只要有这个对应xml文件即可,但是Feature.xml,名称是不可改变的。
下面安装和激活这个Feature:
在目录C:\Program Files\Common Files\Microsoft Shared\web server extensions\12\TEMPLATE\FEATURES中新建一个文件夹,如:MySiteFeature。将这两个xml放入这个文件夹。
使用如下命令:
安装:stsadm –o installfeature –filename MySiteFeature\feature.xml
激活到网站集:stsadm –o activatefeature –filename MySiteFeature\feature.xml -url http://moss:81
这样Feature就安装好了。现在我们已经做好了可以更换MasterPage的Feature,在网站集的管理中的网站集功能中可以看到我们的Feature,可以随时激活或者停止我们的Feature的功能。在上面代码的基础上,可以扩展,比如根据用户组来判断是用哪个MasterPage,MasterPage的定义在xml里定义好就行了。