What is the difference between Struts2 FilterDispatcher and StrutsPrepareAndExecuteFilter?
I saw some examples using FilterDispatcher, while others using StrutsPrepareAndExecuteFilter, in web.xml.

May I know what is the difference between `org.apache.struts2.dispatcher.FilterDispatcher` and `org.apache.struts2.dispatcher.filter.StrutsPrepareAndExecuteFilter`? 

Thank you.
What is the difference between Struts2 FilterDispatcher and StrutsPrepareAndExecuteFilter?
===

I saw some examples using FilterDispatcher, while others using StrutsPrepareAndExecuteFilter, in web.xml.

May I know what is the difference between `org.apache.struts2.dispatcher.FilterDispatcher` and `org.apache.struts2.dispatcher.filter.StrutsPrepareAndExecuteFilter`? 

Thank you.