过滤器动态地处理传入的请求和传出的响应，并且无需修改应用程序代码就可以透明地添加或删除它们。
Filters process incoming requests and outgoing responses dynamically and can be transparently added and removed without modifying application code.
动态ui管理处理的是一种特殊用例：根据用户交互动态添加和删除动态页面和Portlet(称为动态用户接口或动态ui)。
Dynamic UI management deals with a special use case of the dynamic addition and removal of dynamic pages and portlets (called dynamic user interfaces or dynamic UI) based on user interactions.
动态ui管理处理的是一种特殊用例：根据用户交互动态添加和删除动态页面和Portlet(称为动态用户接口或动态ui)。
Dynamic UI management deals with a special use case of the dynamic addition and removal of dynamic pages and portlets (called dynamic user interfaces or dynamic UI) based on user interactions.
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