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Loose Coupling between Presentation Tier and DAO Layer

 
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Hi Ranchers ,

I am working on a sample web application using JSP and Spring for DI .


Inside the servlet i am collecting User data filled inside JSP and using the below code to call the DAO bean .



This works fine .

But this doesn't look good my question is how can i keep loose coupling from presentation to Model Layer .

Please share your ideas

Thanks in advance .
 
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What doesn't look good? Could you please to be more specific?

I don't know what Model Layer is, do you mean Business Layer/Tier?
Anyhow, Presentation Tier *needs* to have dependency to Business Tier, there is nothing wrong with that.
If there is no dependency at all, how does an application work?

In Layered Architecture, the important thing is layers below shouldn't have dependency to layers above, dependencies are necessary things.
 
Ravi Kiran Va
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If there is no dependency at all, how does an application work?




Makes sense . Thanks
 
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You need to inject your dependencies instead of 'pulling' them. Use controllers instead of servlets.
 
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