正确关闭Java Web应用程序

Question

I'm looking for a way to properly shutdown (Undeploy) an Java Web Application within the application itself. I've tried System.exit(), but this not only shutdown the webApp but also messes up Glassfish.

I know about the contextlistener, I'm just wondering how to start the shutdown procedure.

Answer 1

Deploying of web applications is the responsibility of application server. I do know how is it in Glassfish but other app. servers (eg JBoss, Tomcat etc) have web based management application that allow to do this.

If you want to undeploy application programmatically from the application itself you can use JMX. Refer to the glassfish JMX implementation to know which bean to call. But IMHO I do not think that you really need this.

Answer 2

The usual approach is to use the asadmin undeploy command.

The general form for the command is:

as-install/bin/asadmin undeploy war-name

For war-name, use the literal hello, not the full hello.war name.

For the hello.war example, the command is:

as-install/bin/asadmin undeploy hello

See the following references:

http://docs.oracle.com/cd/E19798-01/821-1757/geyvr/index.html

http://docs.oracle.com/docs/cd/E19798-01/821-1758/undeploy-1/index.html

To undeploy programmatically, you can use JSR-88 though i cant really see a reason as to why you would want to do this. See

http://blogs.oracle.com/japod/entry/using_jsr_88_for_web

http://www.jcp.org/en/jsr/detail?id=88