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Question to Budi: How different is Servlet 3.0 , and does the book bridge the gap?

 
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Eclipse IDE Tomcat Server Java
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Hello Budi,
First off, I have a newbie question, how different is the Servlet 3.0 spec different from the earlier spec? How different would it be to code in it, when compared to the 2.5 spec?

Finally, does the book help n00bs in handling the transition well?

Thank you and Welcome to Javaranch!
 
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Hi Vic,
Servlet 3.0 offers some new features, including:
- new annotation types for annotating Servlet classes. These annotation types make the deployment descriptor optional. The deployment descriptor is still needed for more advanced configuration settings.
- asynchronous oprations
- dynamic registration and initializers
- file upload. No need for a separate library

If you already program with Servlet 2.5, you should be able to pick up these new features easily.
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