Frameworks such as Struts cliam to ease your work. Notion is: The skeleton is there and you just need to tuck-in your code. But I feel that the learning curve to master these frameworks is considerable. What's your opinion?
In my opinion, it's worth the time to learn it, then after you understand the framework then it's easier to develop a web application that supports the MVC, that's easy to maintain for different groups (web developers/java programmers) and that can support great choices like internationalization.
I absolutely agree with Jorge. Using Struts will not give the adrenaline rush of going thru building one's own, but it will help in the long run. A lot of complex applications are being built using the web as the platform and custom MVC can make life only worse. Regarding the learning curve - You can understand a lot of about Struts and very well get your first Struts application and it in 4-6 hours. Struts virtually has no learning curve at all..