get absolute path to apache webcontents folder from a java class file [duplicate]

Answer 1

You could write a ServletContextListener:

public class MyServletContextListener implements ServletContextListener
{

    public void contextInitializedImpl(ServletContextEvent event) 
    {
        ServletContext servletContext = event.getServletContext();
        String contextpath = servletContext.getRealPath("/");

        // Provide the path to your backend software that needs it
    }

    //...
}

and configure it in web.xml

<listener>
    <listener-class>my.package.MyServletContextListener</listener-class>
</listener>