Deployment Descriptor - web.xml in Servlets.

The deployment descriptor is an XML file known as web.xml. XML is the easiest way to give the information to a server, just writing in between the tags, instead of writing in a text file or RDBMS file. The name and tags of web.xml are Servlet API specifications. 3. What information can be stored with deployment descriptor?

A deployment descriptor (likely web.xml in your case, since I think you posted an earlier question about building a webapp) tells the application container how the web app should be configured. This is where you register your servlets and filters, add context parameters, and lots of other useful things.

Invalid deployment descriptor web.xml. And doesn't allow me to continue. When I opened my web.xml file I could not see anything which might seems to be related to my issue. Can someone please help? Edit: I am really a newbie :) Sorry about the silly questions.

Writing Deployment Descriptor of Stateless Session Bean In this section we will write the deployment descriptor for the session bean. We need the deployment descriptor for application (application.xml), ejb deployment descriptors (ejb-jar.xml and weblogic-ejb-jar.xml) and web.xml files.

What is Deployment descriptor? - A deployment descriptor is a configuration file for a web application or EJB application which is to be deployed to web or EJB container. - The deployment descriptor should contain standard structural information for all enterprise beans in an EJB application.

Deployment descriptor describes the classes, resources and the configuration for the application as well as the information on the usage of web server to serve the requests. When the web server receives a request for the application, it uses the deployment descriptor to map the URL of the request to the code that handle the request.

A deployment descriptor describes how a component, module or application should be deployed. A web application’s deployment descriptor describes the classes, resources and configuration of the application and how the web server uses them to serve web requests.

Change a deployment descriptor as needed. You can edit a deployment descriptor file manually. However, it is preferable to edit a deployment descriptor using the console or in an assembly tool deployment descriptor editor to ensure that the deployment descriptor has valid properties and that its references contain appropriate values.

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An XML deployment descriptor is simple enough that it’s easy to create a descriptor using nothing more than your favorite text editor, be it Notepad, Emacs, or vi. This chapter discusses what goes into an XML deployment descriptor; it teaches you how to write deployment descriptors for your beans. Keep in mind that you may never need to write.

Answers to questions on Deployment Descriptor. C. The deployment descriptor must be called web.xml and be placed in the directory named WEB-INF; B. init-param is used to specify parameters that are accessed using ServletConfig object. A. In the deployment descriptor the elements in the web-app element can come in any order. B is incorrect.