import?java.util.*;
import?java.io.*;
import?javax.servlet.*;
import?javax.servlet.http.*;
import?bookstore.books;
import?bookstore.element;
import?bookstore.conn;
import?bookstore.orders;
import?bookstore.shopper;

public?class?backservlet?extends?HttpServlet
{
	
	books?book;
	
	HttpSession?session;
	String?information=null;
	double?totalcost=0;
	int?size=0;
	Vector?vbook=new?Vector（1）;
	int?i=0;
	int?bookid=0;
	int?orderid=0;
	public?void?init（ServletConfig?config）?throws?ServletException
	{
		super.init（config）;
	}
	
	public?void?service（HttpServletRequest?req?HttpServletResponse?res）?throws?ServletException?IOException
	{
		req.setCharacterEncoding（“ISO-8859-1“）;?	
		session=req.getSession（true）;
		res.setCharacterEncoding（“gb2312“）;
		String?action?=req.getParameter（“action“）;
		String?exsitid=（String）session.getAttribute（“administ“）;
		
		orders?orderobj;
		books?bookobj;
		conn?con=new?conn（）;
		String?exsis=（String）session.getAttribute（“administer“）;
		if（exsis==null||!exsis.equals（“enter“））
		{
			res.sendRedirect（“noadminister.html“）;
			return;
		}
		if（action.equals（“add“））
		{
			String?name=req.getParameter（“name“）;
			name=new?String（name.getBytes（“ISO-8859-1“）“GBK“）;
			String?author=req.getParameter（“author“）;
			author=new?String（author.getBytes（“ISO-8859-1“）“GBK“）;
			String?publisher=req.getParameter（“publisher“）;
			publisher=new?String（publisher.getBytes（“ISO-8859-1“）“GBK“）;
			String?price=req.getParameter（“price“）;
			String?p=req.getParameter（“picture“）;
			p=new?String（p.getBytes（“ISO-8859-1“）“GBK“）;
			String?picture=“images/“+p;
			String?type=req.getParameter（“type“）;
			type=new?String（type.getBytes（“ISO-8859-1“）“GBK“）;
			boolean?suc=false;
			suc=con.addbook（nametypepricenullauthorpicturepublisher）;
			if（suc）
			{
				session.setAttribute（“informationforupanddown“new?String（“addsuc“））;
				res.sendRedirect（“addbook.jsp“）;
			}
			else
			{
				res.sendRedirect（“addfalse.html“）;//差一個錯誤顯示的頁面。
			}
		}
		if（action.equals（“lookup“））
		{
			String?name=req.getParameter（“name“）;
			name=new?String（name.getBytes（“ISO-8859-1“）“GBK“）;
			String?author=req.getParameter（“author“）;
			author=new?String（author.getBytes（“ISO-8859-1“）“GBK“）;
			String?publisher=req.getParameter（“publisher“）;
			publisher=new?String（publisher.getBytes（“ISO-8859-1“）“GBK“）;
			String?type=req.getParameter（“type“）;
			type=new?String（type.getBytes（“ISO-8859-1“）“GBK“）;
			vbook.clear（）;
			vbook=con.querybookbyinformation（nametypeauthorpublisher）;
			if（vbook.size（）!=0）
			{???
				i=0;
				bookobj=（books）vbook.elementAt（i）;
				session.setAttribute（“bookobj“bookobj）;
				bookid=bookobj.bookid;
				size=vbook.size（）;
				res.sendRedirect（“delbook.jsp“）;
			}
			else
			{
				res.sendRedirect（“nosuchmessage.html“）;
			}
		}
		if（action.equals（“up“））
		{
			if（vbook==null）
			{
				session.setAttribute（“informationforupanddown“new

?屬性????????????大小?????日期????時間???名稱
-----------?---------??----------?-----??----

????I.A....??????7235??2007-12-15?21:11??網上書店JSP+SQL+Tomcat\addbook.jsp

????I.A....??????5171??2007-12-04?19:41??網上書店JSP+SQL+Tomcat\Background\abutton4.jpg

????I.A....??????5541??2007-12-04?19:41??網上書店JSP+SQL+Tomcat\Background\abutton5.jpg

????I.A....??????5602??2007-12-04?19:41??網上書店JSP+SQL+Tomcat\Background\abutton6.jpg

????I.A....??????4404??2007-12-01?12:58??網上書店JSP+SQL+Tomcat\Background\bg1.jpg

????I.A....??????5166??2007-12-09?11:45??網上書店JSP+SQL+Tomcat\Background\brutton8.jpg

????I.A....??????3836??2007-12-09?11:45??網上書店JSP+SQL+Tomcat\Background\burtton6.jpg

????I.A....??????4534??2007-12-09?13:42??網上書店JSP+SQL+Tomcat\Background\buteton13.jpg

????I.A....??????4963??2007-12-16?15:48??網上書店JSP+SQL+Tomcat\Background\butston3.jpg

????I.A....??????4709??2007-12-16?15:48??網上書店JSP+SQL+Tomcat\Background\butston4.jpg

????I.A....??????4805??2007-12-16?15:48??網上書店JSP+SQL+Tomcat\Background\butston5.jpg

????I.A....??????4755??2007-12-09?13:42??網上書店JSP+SQL+Tomcat\Background\butteon12.jpg

????I.A....??????3471??2007-12-04?12:24??網上書店JSP+SQL+Tomcat\Background\button10.jpg

????I.A....??????3467??2007-12-04?12:24??網上書店JSP+SQL+Tomcat\Background\button11.jpg

????I.A....??????3491??2007-12-04?12:24??網上書店JSP+SQL+Tomcat\Background\button12.jpg

????I.A....??????3477??2007-12-04?12:24??網上書店JSP+SQL+Tomcat\Background\button13.jpg

????I.A....??????4974??2007-12-09?13:42??網上書店JSP+SQL+Tomcat\Background\button14.jpg

????I.A....??????5687??2007-12-04?12:30??網上書店JSP+SQL+Tomcat\Background\button17.jpg

????I.A....??????5816??2007-12-04?12:30??網上書店JSP+SQL+Tomcat\Background\button18.jpg

????I.A....??????6085??2007-12-04?12:30??網上書店JSP+SQL+Tomcat\Background\button19.jpg

????I.A....??????5342??2007-12-04?13:01??網上書店JSP+SQL+Tomcat\Background\button2E.jpg

????I.A....??????5423??2007-12-04?13:01??網上書店JSP+SQL+Tomcat\Background\button2F.jpg

????I.A....??????2618??2007-12-07?21:07??網上書店JSP+SQL+Tomcat\Background\button3.jpg

????I.A....??????6472??2007-12-04?13:01??網上書店JSP+SQL+Tomcat\Background\button30.jpg

????I.A....??????4091??2007-12-04?13:02??網上書店JSP+SQL+Tomcat\Background\button31.jpg

????I.A....??????5940??2007-12-04?13:02??網上書店JSP+SQL+Tomcat\Background\button32.jpg

????I.A....??????5782??2007-12-04?13:02??網上書店JSP+SQL+Tomcat\Background\button33.jpg

????I.A....??????5486??2007-12-04?13:03??網上書店JSP+SQL+Tomcat\Background\button34.jpg

????I.A....??????5542??2007-12-04?13:03??網上書店JSP+SQL+Tomcat\Background\button35.jpg

????I.A....??????6598??2007-12-04?13:03??網上書店JSP+SQL+Tomcat\Background\button36.jpg

............此處省略253個文件信息