bookinfaction.java

该系统实现了网上购物及书店管理

package action.bookinf;

import org.apache.struts.action.ActionMapping;
import org.apache.struts.action.ActionForm;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import org.apache.struts.action.ActionForward;

import actionform.bookinf.BookInfActionForm;
import bean.*;

import org.apache.struts.action.Action;
import java.util.ArrayList;
import java.sql.*;

import db.CustomerOperation;

public class BookInfAction extends Action {
	/**
	 * 覆盖Action的execute（）方法
	 * 
	 */
	public ActionForward execute(ActionMapping mapping, ActionForm form,
			HttpServletRequest request, HttpServletResponse response) {
		//创建BookBean对象
		BookBean bookbean = new BookBean();
		BookBean oldBean = null;
		//创建CustomerOperation对象
		CustomerOperation md = new CustomerOperation();
		//将form进行正确的类型转换
		BookInfActionForm bookInfActionForm = (BookInfActionForm) form;
		//从request中取得list属性
		java.util.ArrayList list = (ArrayList) request.getSession()
				.getAttribute("list");

		if (list == null) {
			list = new ArrayList();
		}

		if (request.getParameter("bookId") == null) {
			boolean flag = false;
			//从actionform中取得信息充实BookBean对象
			String bookName = bookInfActionForm.getBookName();
			bookbean.setBookName(bookName);

			String bookId = bookInfActionForm.getBookId();
			bookbean.setBookId(Integer.parseInt(bookId));

			String bookPenster = bookInfActionForm.getBookPenster();
			bookbean.setBookPenster(bookPenster);
			String bookCompany = bookInfActionForm.getBookCompany();
			bookbean.setBookCompany(bookCompany);
			String bookPrice = bookInfActionForm.getBookPrice();
			bookbean.setBookPrice(Integer.parseInt(bookPrice));
			String bookStorage = bookInfActionForm.getBookStorage();
			bookbean.setBookStorage(Integer.parseInt(bookStorage));
			String bookSynopsis = bookInfActionForm.getBookSynopsis();
			bookbean.setBookSynopsis(bookSynopsis);
			bookbean.setBookData(new java.util.Date());
			bookbean.setBookCount(1);
			String bookType = bookInfActionForm.getBookType();
			//通过CustomerOperation对象取得bookType
			bookType = md.queryType(bookType);
			//关闭数据库的连接
			md.Close();
			bookbean.setBookAllPrice(bookbean.getBookPrice());
			bookbean.setBookType(bookType);
			for (int i = 0; i < list.toArray().length; i++) {
				oldBean = (bean.BookBean) list.get(i);

				if (bookbean.getBookId() == oldBean.getBookId()) {
				
					((bean.BookBean) list.get(i)).setBookCount(oldBean
							.getBookCount() + 1);
					((BookBean) list.get(i)).setBookAllPrice(oldBean
							.getBookAllPrice()
							+ oldBean.getBookPrice());
					flag = true;
					request.getSession().setAttribute(
							"zongshu",
							(Integer.parseInt((request.getSession()
									.getAttribute("zongshu")).toString())) + 1);
					request.getSession().setAttribute(
							"gongji",
							((BookBean) list.get(i)).getBookPrice()
									+ Integer
											.parseInt((request.getSession()
													.getAttribute("gongji")
													.toString())));
					break; // mapping.findForward("shopcar");
				}
			}
			if (!flag) {
				list.add(bookbean);
				request.getSession().setAttribute("list", list);
				request.getSession().setAttribute(
						"zongshu",
						(Integer.parseInt((request.getSession()
								.getAttribute("zongshu")).toString())) + 1);
				request.getSession().setAttribute(
						"shangpin",
						(Integer.parseInt((request.getSession()
								.getAttribute("shangpin")).toString())) + 1);
				request.getSession().setAttribute(
						"gongji",
						bookbean.getBookPrice()
								+ Integer.parseInt((request.getSession()
										.getAttribute("gongji").toString())));
			}
		}

		if (request.getParameter("bookId") != null) {
			boolean flag = false;
			bookbean = md.getBookBean(request.getParameter("bookId"));
			for (int i = 0; i < list.toArray().length; i++) {
				oldBean = (bean.BookBean) list.get(i);

				if (bookbean.getBookId() == oldBean.getBookId()) {
					((BookBean) list.get(i)).setBookCount(oldBean
							.getBookCount() + 1);
					((BookBean) list.get(i)).setBookAllPrice(oldBean
							.getBookAllPrice()
							+ oldBean.getBookPrice());
					flag = true;
					request.getSession().setAttribute(
							"zongshu",
							(Integer.parseInt((request.getSession()
									.getAttribute("zongshu")).toString())) + 1);
					request.getSession().setAttribute(
							"gongji",
							((BookBean) list.get(i)).getBookPrice()
									+ Integer
											.parseInt((request.getSession()
													.getAttribute("gongji")
													.toString())));
					break; // return mapping.findForward("shopcar");
				}
			}
			if (!flag) {
				list.add(bookbean);
				request.getSession().setAttribute("list", list);
				request.getSession().setAttribute(
						"zongshu",
						(Integer.parseInt((request.getSession()
								.getAttribute("zongshu")).toString())) + 1);
				request.getSession().setAttribute(
						"shangpin",
						(Integer.parseInt((request.getSession()
								.getAttribute("shangpin")).toString())) + 1);
				request.getSession().setAttribute(
						"gongji",
						bookbean.getBookPrice()
								+ Integer.parseInt((request.getSession()
										.getAttribute("gongji").toString())));
			}
		}

		return mapping.findForward("shopcar");
	}
}