[英]Java servlet filter parameter
I have a filter which I want to use on multiple pages: 我有一个要在多个页面上使用的过滤器:
<filter>
<filter-name>PermissionFilter</filter-name>
<filter-class>filters.PermissionFilter</filter-class>
</filter>
.......
<filter-mapping>
<filter-name>PermissionFilter</filter-name>
<url-pattern>/faces/folder1</url-pattern>
</filter-mapping>
<filter-mapping>
<filter-name>PermissionFilter</filter-name>
<url-pattern>/faces/folder2</url-pattern>
</filter-mapping>
It is possible to specify a parameter(s) in filter mapping? 是否可以在过滤器映射中指定一个或多个参数? Something like that:
像这样:
<filter-mapping>
<filter-name>PermissionFilter</filter-name>
<url-pattern>/faces/folder2</url-pattern>
<init-param>
<param-name>permission</paramn-name>
<param-value>permssionNameWhichIWantToVerify</param-value>
</init-param>
Thank you! 谢谢!
不需要。您要做的是为要使用的每个参数组合声明一次过滤器,然后将具有正确参数组合的正确过滤器映射到适当的URL。
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