Answer:
Struts is based on model 2 MVC (Model-View-Controller) architecture. Struts controller uses the command design pattern and the action classes use the adapter design pattern. The process() method of the RequestProcessor uses the template method design pattern. Struts also implement the following J2EE design patterns.
► Service to Worker
► Dispatcher View
► Composite View (Struts Tiles)
► Front Controller
► View Helper
► Synchronizer Token
► Service to Worker
► Dispatcher View
► Composite View (Struts Tiles)
► Front Controller
► View Helper
► Synchronizer Token
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