Update J2EE applications

 

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You can update application files deployed on a server.

Update your J2EE application or modules and reassemble them using an assembly tool. Typical tasks include...

Also, determine whether the updated files can be installed to your deployment targets. WAS Version 6.x supports J2EE 1.4 enterprise applications and modules.

If you are deploying J2EE 1.4 modules, ensure that the deployment target and its node support Version 6.x. You can deploy J2EE 1.4 modules to V6.x servers or to clusters that contain V6.x cluster members only. You cannot deploy J2EE 1.4 modules to servers on V5.x nodes or to clusters that contain Version 5.x cluster members.

The console Server collection pages show the versions for deployment targets.

 

Overview

Updating consists of adding a new file or module to an installed application, or replacing or removing an installed application, file or module. After replacement of a full application, the old application is uninstalled. After replacement of a module, file or partial application, the old installed module, file or partial application is removed from the installed application.

 

Procedure

  1. Determine which method to use to update your application files. WAS provides several ways to update modules.

  2. Update the application files using

    In some situations, you can update applications or modules without restarting the appserver using hot deployment. Do not use hot deployment unless you are an experienced user and are updating applications in a development or test environment.

  3. Start the deployed application files using

 

What to do next

Save the changes to your administrative configuration.

When saving the configuration, synchronize the configuration with the nodes where the application is expected to run.

Next, test the application. For example, point a Web browser at the URL for a deployed application, typically...

http://hostname:9060/Web_module_name

...where hostname is your valid Web server and 9060 is the default port number) and examine the performance of the application. If the application does not perform as desired, edit the application configuration, then save and test it again.


Ways to update application files
Updating applications with the console
Preparing for application update settings
Hot deployment and dynamic reloading

 

Related concepts

Installable J2EE module versions

 

Related tasks

Start applications with scripting
Updating installed applications with the wsadmin tool
Manage applications through programming
Troubleshooting deployment
Deploying and administering J2EE applications

 

Related information

IBM WebSphere Developer Technical Journal: System management for WAS V6 -- Part 5 Flexible options for updating deployed applications
WebSphere rapid deployment of J2EE applications