What is deployment descriptor ?<br /> <br /> or<br /> <br /> What is the use of deployment descriptor ?
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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 ?
Java EE
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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Related Questions

 Which of the following file is called deployment descriptor ?

a. application.xml
b. project.xml
c. web.xml
d. build.xml
  Can we have multiple servlets in a web application and How can we do that ?
 Is there any relationship between Web.xml and Spring.xml ?
 What is the difference between filter and filter-mappings xml tag within deployment descriptor ?



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