Benefits Of struts

Let’s say there is no strut2 framework, we want to implement our own MVC framework. We need to do the below things.

I want to build MVC framework likes above figure. Below are things we need to do at least.

1.   Read the request parameters and convert them to corresponding java types.

2.   Writes a controller program, which receives the given request and passes it to the corresponding business service (Model) .

3.   Controller calls the specific view based on the result from business service (Model).

4.   Develop general purpose tag libraries for view.

5.   If necessary, MVC framework must validate the request data.

6.   Support different types of result formats like XML, PDF etc.,

But if you use struts you no need to worry about the controller, result parts etc., you just concentrate on Business logic, leave the rest to struts.

What struts provides?

1.   It instantiates the request parameters with the action class properties. You no need to worry to convert request parameters to specific java types.

2.   Struts invoke the specific action method related to given request and get the result.

3.   Based on the result from action method, it display respective view.

4.   Struts supports the various types of Results like Dispatcher Result, Velocity Result,HttpHeader Result, Redirect Result,  XSL Result, Redirect Action Result, Stream Result, PlainText Result, Tiles Result, FreeMarker Result.

5.   Struts supports validating the request data before calling the action method.

6.   Struts provides number of custom tags for displaying data, data conversion, Internationalization, AJAX etc.,

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