The deployment descriptor is
the file used by the servlet container to define which servlets match up with which URLs
. It also defines which servlet or resource provides the landing page for the root of the service. … xml in the File name field, and click Finish.
What do you mean by deployment descriptor give its structure and various elements?
Deployment Descriptor is
an XML document saved in a file called web
. … Deployment Descriptor is mainly used to declare servlets, their initialization parameters, specify mappings between URLs and their target components, provide declarative security, specifying MIME types and configuring JSP pages and documents, etc.
What is the use of deployment descriptor?
Java web applications use a deployment descriptor file
to determine how URLs map to servlets, which URLs require authentication, and other information
. This file is named web. xml , and resides in the app’s WAR under the WEB-INF/ directory.
Where is deployment descriptor in eclipse?
To create a deployment descriptor: In
the Applications Navigator
, select the project for which you want to create a descriptor. Choose File | New to open the New Gallery. In the Categories tree, expand General and select Deployment Profiles.
What is deployment descriptor in spring?
xml, also known as deployment descriptor, is traditionally
used as a configuration file for Java web applications
. It defines servlets, their mappings, servlet filters, lifecycle listeners and more. Originally it was the only way to provide such configuration.
What is servlet Mapping?
Servlet mapping
specifies the web container of which java servlet should be invoked for a url given by client
. It maps url patterns to servlets. When there is a request from a client, servlet container decides to which application it should forward to. … servlet-mapping has two child tags, url-pattern and servlet-name.
What is called deployment?
Deployment is
the mechanism through which applications, modules, updates, and patches are delivered from developers to users
.
Which JSP life cycle is in the correct order?
Which one is the correct order of phases in JSP life cycle? Explanation: The correct order is
Compilation, Initialization, Execution, Cleanup
.
What is a deployment descriptor describes?
A deployment descriptor (DD) refers to
a configuration file for an artifact that is deployed to some container/engine
. … It directs a deployment tool to deploy a module or application with specific container options, security settings and describes specific configuration requirements.
Which method is called only once in Servlet life cycle?
The init() Method
The init
method is called only once. It is called only when the servlet is created, and not called for any user requests afterwards. So, it is used for one-time initializations, just as with the init method of applets.
How add xml file in eclipse?
Invoke New XML File wizard using
workbench menu File>New>Other>XML>XML
. On the XML File Name page select a project or folder to contain the XML file and type a name for it. Next, select the option to Create XML file from an XML template.
How do I change the deployment descriptor version in eclipse?
- Click on your project folder.
- Go to Window > Show View > Navigator.
- Go to Navigator and expand the .settings folder.
- Open org.eclipse.wst.common.project.facet.core.xml file <? xml version=”1.0′′ encoding=”UTF-8′′?> < …
- Change the version like this <installed facet=”jst.web” version=”3.1′′/>
- Save.
- Just update your project.
How do I create a deployment descriptor stub?
However, you can generate a deployment descriptor stub.
Right-click your project and select Java EE > Generate Deployment Descriptor
Stub.
What is bean in spring?
A bean is
an object that is instantiated, assembled, and otherwise managed by a Spring IoC container
. … These beans are created with the configuration metadata that you supply to the container.
What is bean life cycle in spring?
Bean life cycle is managed by
the spring container
. When we run the program then, first of all, the spring container gets started. After that, the container creates the instance of a bean as per the request, and then dependencies are injected. And finally, the bean is destroyed when the spring container is closed.
What is AbstractAnnotationConfigDispatcherServletInitializer?
All Implemented Interfaces: WebApplicationInitializer. public abstract class AbstractAnnotationConfigDispatcherServletInitializer extends AbstractDispatcherServletInitializer. WebApplicationInitializer
to register a DispatcherServlet and use Java-based Spring configuration
.
