updatecaraction.java

网上购物系统 基于jsp实现 运行环境eclipse+My SQL+TomCat

/*
 * Generated by MyEclipse Struts
 * Template path: templates/java/JavaClass.vtl
 */
package book.jsj0707.struts.action;

import java.util.List;

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.ActionForward;
import org.apache.struts.action.ActionMapping;

import book.jsj0707.dao.ShoppingcarDAO;
import book.jsj0707.entity.Shoppingcar;

/** 
 * MyEclipse Struts
 * Creation date: 01-12-2009
 * 
 * XDoclet definition:
 * @struts.action scope="request" validate="true"
 * @struts.action-forward name="ok" path="/showCar.do"
 */
public class UpdateCarAction extends Action {
	/*
	 * Generated Methods
	 */

	ShoppingcarDAO shoppingcarDAO;
	public ShoppingcarDAO getShoppingcarDAO() {
		return shoppingcarDAO;
	}
	public void setShoppingcarDAO(ShoppingcarDAO shoppingcarDAO) {
		this.shoppingcarDAO = shoppingcarDAO;
	}
	/** 
	 * Method execute
	 * @param mapping
	 * @param form
	 * @param request
	 * @param response
	 * @return ActionForward
	 */
	public ActionForward execute(ActionMapping mapping, ActionForm form,
			HttpServletRequest request, HttpServletResponse response) {
		List carlist = shoppingcarDAO.findBySessionid(request.getSession().getId());
		
		for(int i=0;i<carlist.size();i++)
		{
			String temp = "p"+i;
			int number=0;
			try {
				number = Integer.parseInt(request.getParameter(temp));
			} catch (Exception e) {
				return mapping.findForward("ok");
			}
			if(number<=0)
			{
				number=1;
			}
			Shoppingcar updatecar = (Shoppingcar)carlist.get(i);
			updatecar.setNumbers(Long.parseLong(String.valueOf(number)));
			shoppingcarDAO.merge(updatecar);
		}
		return mapping.findForward("ok");
	}
}