getdownloadaction.java

类似于csdn的上传下载系统

/*
 * Generated by MyEclipse Struts
 * Template path: templates/java/JavaClass.vtl
 */
package org.adam.struts.action;

import javax.servlet.ServletContext;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;
import javax.sql.DataSource;
import org.adam.bean.Download;
import org.adam.bean.DB;
import org.apache.struts.action.Action;
import org.apache.struts.action.ActionForm;
import org.apache.struts.action.ActionForward;
import org.apache.struts.action.ActionMapping;

/** 
 * MyEclipse Struts
 * Creation date: 08-12-2008
 * 
 * XDoclet definition:
 * @struts.action validate="true"
 */
public class GetDownLoadAction extends Action {
	/*
	 * Generated Methods
	 */

	/** 
	 * Method execute
	 * @param mapping
	 * @param form
	 * @param request
	 * @param response
	 * @return ActionForward
	 */
	public ActionForward execute(ActionMapping mapping, ActionForm form,
			HttpServletRequest request, HttpServletResponse response) {
		// TODO Auto-generated method stub
		int download_id=Integer.parseInt(request.getParameter("download_id"));
		ServletContext context=servlet.getServletContext();
		DataSource ds=(DataSource)context.getAttribute("download");
		DB db=new DB(ds);
		HttpSession session=request.getSession();
		Download down=Download.getDownload(db, download_id);
		session.setAttribute("download",down);
		int visitcount=down.getVisitcount()+1;
		Download d=new Download();
		d.setVisitcount(visitcount);
		//ServletContext context=servlet.getServletContext();
		//DataSource ds=(DataSource)context.getAttribute("download");
		DB db1=new DB(ds);
		d.updateVisitcount(db1, download_id);
		return mapping.findForward("download");
	}
}