Create the Shared Library
WebLogic has the concept of shared libraries. These are deployed as an EAR. Below is what the EAR will look like for creating a shared library for EclipseLink 2.4.
EclipseLink24_SharedLibrary.ear
- lib/eclipselink.jar
- META-INF/application.xml
- META-INF/MANIFEST.MF
- META-INF/weblogic-application.xml
application.xml
<application> <display-name>EclipseLink 2.4 Shared Library</display-name> <module> <java></java> </module> </application>
MANIFEST.MF
Manifest-Version: 1.0 Ant-Version: Apache Ant 1.8.2 Created-By: 1.7.0_04-b21 (Oracle Corporation) Extension-Name: EclipseLink-2.4.0 Specification-Version: 2.4.0 Implementation-Version: 2.4.0.v20120608-r11652
weblogic-application.xml
<weblogic-application> <prefer-application-packages> <package-name>org.eclipse.persistence.*</package-name> </prefer-application-packages> </weblogic-application>
Use the Shared Library
Once the shared library has been deployed, you need to configure your enterprise applications to use it.
SampleApplication.ear
- META-INF/MANIFEST.MF
- META-INF/weblogic-application.xml
- SampleApplication.war
weblogic-application.xml
The weblogic-application.xml file is used to reference the shared library. The entries in the library-ref element need to match the corresponding entries from MANIFEST.MF in the shared library.
<?xml version="1.0" encoding="UTF-8"?> <wls:weblogic-application xmlns:wls="http://xmlns.oracle.com/weblogic/weblogic-application" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/javaee_5.xsd http://xmlns.oracle.com/weblogic/weblogic-application http://xmlns.oracle.com/weblogic/weblogic-application/1.2/weblogic-application.xsd"> <!--weblogic-version:10.3.4--> <wls:application-param> <wls:param-name>webapp.encoding.default</wls:param-name> <wls:param-value>UTF-8</wls:param-value> </wls:application-param> <wls:library-ref> <wls:library-name>EclipseLink-2.4.0</wls:library-name> <wls:specification-version>2.4.0</wls:specification-version> <wls:implementation-version>2.4.0.v20120608-r11652</wls:implementation-version> <wls:exact-match>true</wls:exact-match> </wls:library-ref> </wls:weblogic-application>
TestServlet
Below is a test servlet that you could include in the WAR to test the EclipseLink version.
package com.example;
import java.io.IOException;
import java.io.PrintWriter;
import javax.servlet.ServletException;
import javax.servlet.http.*;
public class TestServlet extends HttpServlet {
private static final long serialVersionUID = 1L;
public TestServlet() {
super();
}
protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
response.setContentType("text/html");
PrintWriter out = response.getWriter();
out.append("<html><body>");
out.append(org.eclipse.persistence.Version.getVersion());
out.append("</body></html>");
}
protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
}
}
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