Java EE - Interview Questions and Answers for 'Web.xml' | Search Interview Question

Java EE - Interview Questions and Answers for 'Web.xml' - 4 question(s) found - Order By Newest

Frequently asked. Among first few questions in the J2EE segment of interview.

Q1. What is deployment descriptor ?

or

What is the use of deployment descriptor ?

Ans. Deployment Descriptor which is usually web.xml is used to specify the classes, resources and configuration of the application and how the web server uses them to serve web requests.This file is usually added to WEB-INF folder and contains following

* Servlet entries and url mapping
* Plugins
* Some info regarding authentication / filters
* Landing Page
* Event Handlers

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Q2. Can we have multiple servlets in a web application and How can we do that ?

Java EE

Ans. Yes by making entries in web.xml

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Q3. Is there any relationship between Web.xml and Spring.xml ?

Spring

Ans. No, there is no relationship between web.xml and spring.xml but you have to configure spring.xml in web.xml in order initialize beans when application starts up

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Q4. What is the difference between filter and filter-mappings xml tag within deployment descriptor ?

Java EE

Ans. filter tag speficies the filter name and respective class for handling filter action whereas filter mapping maps the filter to the url patterns ( specifying the url that needs to be intercepted )

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