新闻发布系统

				/*
				 * Catalog.java
				 *
				 * Created on 2007年3月24日, 上午9:31
				 */
				
				package News.Struts.Action;
				
				import java.util.ArrayList;
				import javax.servlet.http.HttpServletRequest;
				import javax.servlet.http.HttpServletResponse;
				
				import org.apache.struts.action.Action;
				import org.apache.struts.action.ActionForm;
				import org.apache.struts.action.ActionMapping;
				import org.apache.struts.action.ActionForward;
				
				import News.GUI.ProcessData.List;
				/**
				 *
				 * @author Owner
				 * @version
				 */
				
				public class Catalog extends Action {
				    
				    /* forward name="success" path="" */
				    private final static String SUCCESS = "success";
				    
				    /**
				     * This is the action called from the Struts framework.
				     * @param mapping The ActionMapping used to select this instance.
				     * @param form The optional ActionForm bean for this request.
				     * @param request The HTTP Request we are processing.
				     * @param response The HTTP Response we are processing.
				     * @throws java.lang.Exception
				     * @return
				     */
				    public ActionForward execute(ActionMapping mapping, ActionForm  form,
				            HttpServletRequest request, HttpServletResponse response)
				            throws Exception {
				        int id=0;
				        String catalogName=request.getParameter("catalogName"),showpage=request.getParameter("showPage");
				        try{
				        id=Integer.parseInt(request.getParameter("ID"));
				        }catch(NumberFormatException e){id=1;}
				        List l=new List();
				        ArrayList al=l.listNewsOfCatalog(showpage,id);
				        if(al!=null)
				        {
				            request.getSession(true).setAttribute("NewsContent",al);
				            request.getSession(true).setAttribute("CatalogName",catalogName);
				            request.getSession(true).setAttribute("ID",String.valueOf(id));
				            request.getSession(true).setAttribute("showPage",String.valueOf(l.getShowPage()));
				            request.getSession(true).setAttribute("frontPage",String.valueOf(l.getFrontPage()));
				            request.getSession(true).setAttribute("nextPage",String.valueOf(l.getNextPage()));
				            request.getSession(true).setAttribute("recordCount",String.valueOf(l.getRecordCount()));
				            request.getSession(true).setAttribute("pageCount",String.valueOf(l.getPageCount()));
				        return mapping.findForward("catalog");
				        }
				        else return mapping.findForward("failure");
				    }
				}