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Glassfish Interview Questions and Answers

Ques 6. How to Deploy and Undeploy Applications in Glassfish Command Line?

Ans.

The process of configuring and enabling applications to run within the GlassFish Server
framework is referred to asdeployment.

To Obtain the Sample Application
Download a copy of thehello.warsample application fromhttp://glassfish.java.net/
downloads/quickstart/hello.war.
Save thehello.warfile in the directory of your choice.
This directory is referred to as sample-dir

To Deploy the Sample Application From the Command Line
The sample application must be available before you start this task. To download the sample, see “To Obtain the Sample Application” on page 8. At least one GlassFish Server domain must be started before you deploy the sample application.
Run the asadmin deploy command.
The general form for the command is as follows:
as-install/bin/asadmin deploy war-name
To deploy the hello.war sample, the command is as follows:
as-install/bin/asadmin deploy sample-dir/hello.war
Access thehelloapplication by typing the following URL in your browser:
http://localhost:8080/hello
The application's start page is displayed, and you are prompted to type your name.
Hi, my name is Angel. What’s yours?
Type your name and click Submit.
The application displays a customized response, giving you a personal Hello.

To List Deployed Applications From the Command Line
Run the asadmin list-applications command:
as-install/bin/asadmin list-applications

To Undeploy the Sample Application From the Command Line
Run the asadmin undeploy command.
The general form for the command is as follows:
as-install/bin/asadmin undeploy war-name
Forwar-name, use the literal hello, not the full hello.warname.
For the hello.war example, the command is as follows:
as-install/bin/asadmin undeploy hello

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Ques 7. How to Deploy and Undeploy Applications by Using the Administration Console?
Ans.
The graphical Administration Console of GlassFish Server enables you to perform the following deployment-related tasks:

To Deploy the Sample Application by Using the Administration Console
The sample application must be available before you start this task. At least one GlassFish Server domain must
be started before you deploy the sample application.
1) Launch the Administration Console by typing the following URL in your browser:
http://localhost:4848
2) Click the Applications node in the tree on the left.
The Applications page is displayed.
3) Click the Deploy button.
The Deploy Applications or Modules page is displayed.
4) Select Packaged File to be Uploaded to the Server, and click Browse.
5) Navigate to the location in which you saved thehello.warsample, select the file, and click
Open.
You are returned to the Deploy Applications or Modules page.
6) Specify a description in the Description field, for example: hello
7) Accept the other default settings, and click OK.
You are returned to the Applications page.
8) Select the check box next to thehelloapplication and click the Launch link to run the
application.
The default URL for the application is as follows:
http://localhost:8080/hello/

To View Deployed Applications in the Administration Console
1) Launch the Administration Console by typing the following URL in your browser:
http://localhost:4848
2) Click the Applications node in the tree on the left.
Expand the node to list deployed applications. Deployed applications are also listed in the table on the Applications page.

To Undeploy the Sample Application by Using the Administration Console
1) Launch the Administration Console by typing the following URL in your browser:
http://localhost:4848
2) Click the Applications node in the tree on the left.
The Applications page is displayed.
3) Select the check box next to thehellosample application.
4) Remove or disable the application.
■ To remove the application, click the Undeploy button.
■ To disable the application, click the Disable button.
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Ques 8. How to deploy and undeploy application automatically in Glassfish?
Ans.
To Deploy the Sample Application Automatically
You can deploy applications automatically by placing them in the
as-install/domains/domain-name/autodeploydirectory, wheredomain-nameis the name of
the domain for which you want to configure automatic deployment. For this example, use the
default domain, domain1:
as-install/domains/domain1/autodeploy
The sample application must be available before you start this task.
Copy the applicationWAR file to theas-install/domains/domain-name/autodeploydirectory.
■ On UNIX, Linux, and Mac OS X systems, type this command:
cp sample-dir/hello.war as-install/domains/domain-name/autodeploy
■ OnWindows systems, type this command:
copy sample-dir\hello.war as-install\domains\domain-name\autodeploy
GlassFish Server automatically discovers and deploys the application. The default URL for the application is as follows:
http://localhost:8080/hello/

To Undeploy the Sample Application Automatically
Change to the domain'sautodeploydirectory.
cd as-install/domains/domain-name/autodeploy
Delete the sample application'sWAR file to undeploy and remove the application.
■ On UNIX, Linux, and Mac OS X systems, type this command:
rm hello.war
■ OnWindows systems, type this command:
del hello.war
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