Struts扩展点 PlugIn

package nformtest.PlugIn;

import org.apache.struts.action.PlugIn;
import org.apache.struts.action.ActionServlet;
import org.apache.struts.config.ModuleConfig;
import javax.servlet.ServletException;
import org.apache.log4j.Logger;
import javax.servlet.ServletContext;


public class MyPlugIn implements PlugIn {
    private static Logger log = Logger.getLogger(MyPlugIn.class);
    public void destroy() {
        /**@todo Implement this org.apache.struts.action.PlugIn method*/
        throw new java.lang.UnsupportedOperationException(
                "Method destroy() not yet implemented.");
    }

    public void init(ActionServlet parm1, ModuleConfig parm2) throws javax.
            servlet.ServletException {
        log.info("start login myPlugIn");
        ServletContext context = parm1.getServletContext();
        context.setAttribute("skin", "skin");

    }
}

<plug-in className="nformtest.PlugIn.MyPlugIn" />