如何将战争文件（其中包含persistance.xml和entity.java类封装）隐藏到耳朵文件中？

Question

I am trying to package a war file to a ear file as i have to deploy my project on webLogic. I have created a dynamic web project which has 1 entity (java class)class and 1 persistance.xml (and lot of other lib files, jsp files,java classes). I have extracted this project as a war file. Now to deploy it on weblogic I need to have a ear file. I dont know how to do it...when i simply added my war file as a web module in ear I got a null pointer exception. I believe I need to do something with persistance.xml and entity files. Please help.

When I was running dynamic web project on my local tomcat it was running fine and persistance.xml was placed in src/metainf folder and looks like this:

 persistence-unit name="MyWar"

 class PackageName.MyEntity class

properties
  property name="eclipselink.jdbc.driver" value="oracle.jdbc.driver.OracleDriver"/>
 property name="eclipselink.jdbc.url" value="jdbc:oracle:thin:XYZ"/>
 property name="eclipselink.jdbc.user" value="USERNAME"/>
 property name="eclipselink.jdbc.password" value="PASSWORD"/>
  property name="eclipselink.logging.level" value="SEVERE"/>
 property name="eclipselink.ddl-generation" value="create-tables"/>
 properties

 persistence-unit

 persistence    `

For placing project on web logic I am using JTA.My persistance.xml is in src/metaInf and looks like this.

  persistence-unit name="MyWar" transaction-type="JTA"

    jta-data-source XYZ.datasource /jta-data-source

     class packageName.MyEntity class

   <exclude-unlisted-classes>false exclude-unlisted-classes> 

    persistence-unit

  persistence

I extracted dynamic web project as a WAR and added it in EA project

My application.xml (in EA project) is placed in EARContent/MetaInf/application.xml and looks like this:

        display-name EARName display-name

       module

        web 

          web-uri MyWar.war  web-uri

           context-root MyWar context-root 

       web

       module

    application

Extracted a EAR and placed in webLogic server. Error:

Nov 24, 2014 12:04:19 PM GMT Error HTTP BEA-101371 There was a failure when processing annotations for application /opt/dap/domains/PORTALINSTANCE/int/domain/servers/MS1/tmp/_WL_user/MYWARNAME/48n279/MYWARNAME.war. Ensure that the annotations are valid. The error is null.

I am first time writting my question , please excuse my way of writting code.

Answer 1

you can deploy a .war file into an EE container. the only advantage of repackaging as an .ear file is that you get to bundle multiple .war files as well as service endpoint ejb-jar files (remote ejbs).

persistence.xml would reside where your ORM/DAO layer resides (in the META-INF dir of your war file or in the ejb jar file if you split out the ejb layer from the war file [assuming you go .ear]) the entities would either be in the WEB-INF/classes dir if you go with war packaging or in your ejb jar file if you split it out and deploy as an .ear file.