addorderlineaction.java

一个J2EE 做的 网上图书销售管理系统

/*
 * Generated by MyEclipse Struts
 * Template path: templates/java/JavaClass.vtl
 */
package com.briup.web.servlet;

import java.util.Collection;
import java.util.Iterator;
import java.util.List;
import java.util.Map;

import javax.servlet.ServletContext;
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.ActionForm;
import org.apache.struts.action.ActionForward;
import org.apache.struts.action.ActionMapping;

import com.briup.bean.BookForm;
import com.briup.bean.Orderline;
import com.briup.bean.ShoppingCart;
import com.briup.bean.ShoppingCartForm;

/**
 * MyEclipse Struts Creation date: 05-28-2008
 * 
 * XDoclet definition:
 * 
 * @struts.action validate="true"
 */
public class AddOrderlineAction 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
		ShoppingCartForm shoppingCartForm = (ShoppingCartForm) form;
		response.setContentType("text/html");
		ServletContext stx = getServlet().getServletContext();
		HttpSession session = request.getSession();
		Map books = (Map) stx.getAttribute("books");
		ShoppingCart cart = (ShoppingCart) session.getAttribute("cart");
		String bookid = request.getParameter("bookid");
		System.out.println("bookid=" + bookid);
		String num = request.getParameter("num");
		String num1 = request.getParameter("num1");
		System.out.println("mum=" + num);
		BookForm book = (BookForm) books.get(Integer.parseInt(bookid));
		Orderline line = new Orderline();
		line.setBook(book);
		line.setNum(Integer.parseInt(num));
		System.out.println("line=" + line + "我在AddOrderlineAction");
		// 加上ID影响运行的结果会使INSERT变成UPDATE
		// line.setId(Long.parseLong(bookid));
		cart.addLine(line);
		// cart.addLine(line);
		// 为了购物车利用struts,jsp的标签库的使用将listcart.jsp改成标签库
		List<Orderline> list = (List) session.getAttribute("list");
		Iterator it = list.iterator();
		while (it.hasNext()) {
			list.remove(0);
		}
		Collection c = cart.getOrderlines();
		Iterator iter = c.iterator();
		while (iter.hasNext()) {
			Orderline orderline = (Orderline) iter.next();
			System.out.println(orderline.getNum() + "  add action 81行");
			list.add(orderline);
		}
		session.setAttribute("list", list);
		return new ActionForward("/listBookStore.jsp");

	}
}