问题
I am trying to understand how to use JBoss EAP6 with Spring applications. I have a sample OpenShift application and it contains a jboss-deployment-structure.xml file.
I found some documentation about this file, but I am not clear why and when one should use those files with Spring applications. The content is the following:
<jboss-deployment-structure xmlns="urn:jboss:deployment-structure:1.0">
<deployment>
<dependencies>
<module name="com.h2database.h2"/>
<module name="org.codehaus.jackson.jackson-core-asl"/>
<module name="org.codehaus.jackson.jackson-mapper-asl"/>
<module name="org.slf4j"/>
</dependencies>
</deployment>
</jboss-deployment-structure>
Why does one need to declare dependencies to modules? And what are modules in the JBoss paradigm? Is it possible to live without this xml file?
回答1:
As long as you don't have any classloading problems with your application you don't need the jboss-deployment-structure.xml file. But once you have trouble of such kind the dependency management in jboss-deployment-structure.xml would be your friend.
This article explains very good what modules are.
I think in short you can say that everything that is deployed as WAR, JAR or EAR is a module. These modules are referred to as dynamic modules. Beside them there are static modules in $JBOSS_HOME/modules. The only difference is how they are packaged.
回答2:
This is what I found on the internet:
"In order to avoid using JBoss provided logging APIs, we need to place the following kind of “jboss-deployment-structure.xml” file inside “/home/userone/ApplicationLevelLog4jDemo/src” so that we can exclude the jboss logging APIs for our application and our application can use it’s own version of logging APIs."
Source: http://middlewaremagic.com/
来源：https://stackoverflow.com/questions/14581980/when-and-why-would-i-need-a-jboss-deployment-structure-xml-for-a-spring-applicat