viewbookaction.java

网上书店后台管理源码基于struts1.2+oracle数据库

/*
 * Generated by MyEclipse Struts
 * Template path: templates/java/JavaClass.vtl
 */
package com.dongfang.action;

import java.io.UnsupportedEncodingException;
import java.util.ArrayList;
import java.util.List;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;

import org.apache.struts.action.Action;
import org.apache.struts.action.ActionError;
import org.apache.struts.action.ActionErrors;
import org.apache.struts.action.ActionForm;
import org.apache.struts.action.ActionForward;
import org.apache.struts.action.ActionMapping;
import org.apache.struts.action.ActionMessage;
import org.apache.struts.action.ActionMessages;
import org.apache.struts.action.DynaActionForm;

import com.dongfang.dao.BookDAO;

/** 
 * MyEclipse Struts
 * Creation date: 09-10-2007
 * 
 * XDoclet definition:
 * @struts.action path="/viewBook" name="viewForm" input="/wrong.jsp" scope="request" validate="true"
 */
public class ViewBookAction 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) {
		
		DynaActionForm viewForm = (DynaActionForm) form;// TODO Auto-generated method stub
		Integer pageId = (Integer)viewForm.get("pageId");
		String keyword = (String)viewForm.get("keyword");
		
		HttpSession session = request.getSession();
		
		int iPageId = 0;
		int pageCount = 0;
		int pageSize = 2;
		if(pageId!=null)
		{
			iPageId = pageId.intValue();
		}
		if(iPageId<0)
		{
			iPageId = 0;
		}
		BookDAO bookdao = new BookDAO();
		List bookList = bookdao.getBookBykeyword(keyword);
		if(bookList.isEmpty())
		{
			ActionMessages errors = new ActionMessages();
			errors.add(ActionErrors.GLOBAL_MESSAGE, new ActionMessage("errors.noBook"));
			this.saveErrors(request,errors);
			return mapping.findForward("toWrong");
		}
		pageCount = (bookList.size()+pageSize-1)/pageSize;
		if(iPageId>=pageCount)
		{
			iPageId = pageCount - 1;
		}
		session.setAttribute("bPageId", new Integer(iPageId));
		session.setAttribute("bPageCount", new Integer(pageCount));
		if((iPageId>=0)&&(bookList.size()>iPageId*pageSize))
		{
			List dispList = new ArrayList();
			for(int i=iPageId*pageSize;i<(iPageId+1)*pageSize;i++)
			{
				if(i<bookList.size())
				{
					dispList.add(bookList.get(i));
				}
			}
			session.setAttribute("bDispList", dispList);
			session.setAttribute("bKeyword", keyword);
			
		}
		return mapping.findForward("toViewBook");
		
	}
}