Http Connection for UIViewController

Hi guys.
I am developing an application with Http connection.
This application has 5 UIViewControllers.
Each UIViewController can create a Http Connection.
In this case, Do I need to code NSURLConnection for each UIViewController ?
Or, Do need to code one NSURLConnection for 5 UIViewControllers?
If so, How to make a transition between one NSURLConnection and 5 UIViewControllers ?
Which one is better ?
Thanks in advance.

Thanks for reply.
hat is hard to tell without knowing what each of these connections are supposed to do. I would >definitely create a separate class that handles the HTTP request, check connectivity etc. and use >that from each controller.
If so, Do I need to define 5 UIViewControllers as static variable in separate class that handles the HTTP request ?
I am trying yours idea. To do that, defines static variable for each UIViewController in AppDelegate.m.
Actually i wanna do it as local variable. But I have one separate class that handles. So, I defined these 5 UIViewControllers as static.
If need to define as local variable, what do I need to ?
Any suggestion ?
Thanks in advance.

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