What is the use of deployment descriptor?

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Kaizen Software

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. When the web server receives a request...
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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. 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 ought to handle the request. read less
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Full Time java Developer

Deployment Descriptor 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.(web.xml is eg of deployment descriptor)
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Industry expert and professional lecturer/trainer

Deployment descriptor is used in J2ee to mention parameters required at application level and servlet layer. Also used for servlet to URL mapping. Also used for security by mentioning params
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Java,J2EE,Spring,Webservices,Hibernate,Cloud And Android Expertise

Deployment descriptor will contain the all the information about your application such as servlet configuration,JSP and other parameters and URL mappings
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It contains the instructions to assemble and deploy a web application or enterprise application to a application server.
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Java Trainer

It will describe how you are going to deploy / access your web application. As an example: It will contain, which program should execute / invoke for user input from the browser (url) Which servlet should be ready before it receives any request. what are the additional parameters etc etc. all...
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It will describe how you are going to deploy / access your web application. As an example: It will contain, which program should execute / invoke for user input from the browser (url) Which servlet should be ready before it receives any request. what are the additional parameters etc etc. all such details will be described to be understandable by the server in an xml format. read less
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Java/J2EE, B.E./B.Tech/MCA SubjectsTraining

Deployment descriptor describes how the web application should be deployed. The web application deployment descriptor describes a lot more about a web application. The web application deployment descriptor is written using the Extensible Markup Language (XML) syntax. The web application deployment descriptor...
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Deployment descriptor describes how the web application should be deployed. The web application deployment descriptor describes a lot more about a web application. The web application deployment descriptor is written using the Extensible Markup Language (XML) syntax. The web application deployment descriptor is named web.xml. The contents of this file direct a deployment tool to deploy a module or application with the specified security settings, and describes other specific configuration requirements and/or container options. read less
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Industrial Training,Workshop on Latest Technology,

Deployment Descriptor is a XML document with .xml extension. It basically describes the deployment settings of an application or module or the component. At runtime J2EE server reads the deployment descriptor and understands it and then acts upon the component or module based the information mentioned...
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Deployment Descriptor is a XML document with .xml extension. It basically describes the deployment settings of an application or module or the component. At runtime J2EE server reads the deployment descriptor and understands it and then acts upon the component or module based the information mentioned in descriptor. read less
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Teaching the Student to Answer Why not What

Deployment Descriptor contains information about your ear or war which is read by your server and behave the same way told in deployment descriptor.
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Salesforce Trainer

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. When the web server receives a request for the application, it uses...
read more
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. 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 ought to handle the request. read less
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