1. Compile your code and package it in a jar file. In this example I have written a simple program that has a function that just takes a string as input and prints hello infront of the string.
package wonders;
public class MyTestClass
{
static {
System.out.println("MyTestClass class Loaded From sf1.jar");
}
public String sayHello(String name)
{
System.out.println("sf1.jar sayHello() called"); ;
return name;
}
}
2. Deploy the jar file on the server as a library.
3. Refer the shared library in the weblogic-application.xml present under EARMETA-INF folder.
<?xml version="1.0" encoding="ISO-8859-1"?>
<weblogic-application xmlns="http://xmlns.oracle.com/weblogic/weblogic-application
xmlns:xsi=http://www.w3.org/2001/XMLSchema-instance
xsi:schemaLocation=http://xmlns.oracle.com/weblogic/weblogic-application
http://xmlns.oracle.com/weblogic/weblogic-application/1.0/weblogic-application.xsd">
<application-param>
<param-name>webapp.encoding.default</param-name>
<param-value>UTF-8</param-value>
</application-param>
<library-ref>
<library-name>sf1</library-name>
</library-ref>
</weblogic-application>
4. Access the library from your application. In my example I am calling the function from a jsp.
<html>
<body> Hi this is hello from sl1.jar<BR>
<%@ page language="java" contentType="text/html; charset=ISO-8859-1"
pageEncoding="ISO-8859-1" import="wonders.*" %>
<% wonders.MyTestClass mtc=new wonders.MyTestClass();
System.out.println("Hello to "+ mtc.sayHello("Wonders")); %>
</body>
</html>

