📄 list.jsp
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<%@ page session="true" %>
<%@ page import="java.sql.*,java.util.*" %>
<html>
<head>
<title>JSP在线书店</title>
<script language="JavaScript" type="text/JavaScript">
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</script>
<meta http-equiv="Content-Type" content="text/html; charset=gb2312"></head>
<%
String loginSign=(String)session.getValue("loginSign");
if(loginSign.equals("OK"))
{
%>
<body bgcolor="#F4F5FF" onLoad="MM_preloadImages('images/bb1_1.jpg','images/bb2_1.jpg','images/bb3_1.jpg','images/bb4_1.jpg','images/bb5_1.jpg')">
<font face="Times New Roman,Times" size="+3"> </font>
<table width="78%" border="0" align="center" cellpadding="0" cellspacing="0">
<tr>
<td width="20%"><img src="images/logo.jpg" width="230" height="120"></td>
<td width="80%"><object classid="clsid:D27CDB6E-AE6D-11cf-96B8-444553540000" codebase="http://download.macromedia.com/pub/shockwave/cabs/flash/swflash.cab#version=6,0,29,0" width="540" height="120">
<param name="movie" value="images/8.swf">
<param name="quality" value="high">
<embed src="images/8.swf" quality="high" pluginspage="http://www.macromedia.com/go/getflashplayer" type="application/x-shockwave-flash" width="540" height="120"></embed></object></td>
</tr>
</table>
<hr>
<p>
<center>
<b><font color="#3300CC" size="+3" face="华文行楷">JSP在线书店</font></b>
<table border="1">
<tr>
<td width="72"><a href="#" onMouseOut="MM_swapImgRestore()" onMouseOver="MM_swapImage('Image1','','images/bb1_1.jpg',1)"><img src="images/bb1.jpg" alt="欢迎光临恽奚皓的JSP书店" name="Image1" width="160" height="46" border="0"></a></td>
<td width="80"><a href="#" onMouseOut="MM_swapImgRestore()" onMouseOver="MM_swapImage('Image2','','images/bb2_1.jpg',1)"><img src="images/bb2.jpg" alt="欢迎光临恽奚皓的JSP书店" name="Image2" width="160" height="45" border="0"></a></td>
<td width="40"><a href="#" onMouseOut="MM_swapImgRestore()" onMouseOver="MM_swapImage('Image3','','images/bb3_1.jpg',1)"><img src="images/bb3.jpg" alt="欢迎光临恽奚皓的JSP书店" name="Image3" width="160" height="45" border="0"></a></td>
<td width="88"><a href="#" onMouseOut="MM_swapImgRestore()" onMouseOver="MM_swapImage('Image4','','images/bb4_1.jpg',1)"><img src="images/bb4.jpg" alt="欢迎光临恽奚皓的JSP书店" name="Image4" width="160" height="45" border="0"></a></td>
<td width="68"><a href="#" onMouseOut="MM_swapImgRestore()" onMouseOver="MM_swapImage('Image5','','images/bb5_1.jpg',1)"><img src="images/bb5.jpg" alt="欢迎光临恽奚皓的JSP书店" name="Image5" width="160" height="45" border="0"></a></td>
</tr>
<%! String item;%>
<%! String[] title,author,pubhouse;%>
<%! float[] price;%>
<%! int[] id;%>
<%! float totalAmount; %>
<%! int count,removeNo,i; %>
<%! boolean isExist;%>
<%
try
{
String sDBDriver="com.microsoft.jdbc.sqlserver.SQLServerDriver";
Class.forName(sDBDriver);
String sConnStr="jdbc:microsoft:sqlserver://127.0.0.1:1433;DatabaseName=Web";
String username="sa";
String password="";
Connection connWeb=DriverManager.getConnection(sConnStr,username,password);
Statement stmt=connWeb.createStatement();
String query="select bookname,author,price,publichouse,bookid from book_info";
ResultSet rs=stmt.executeQuery(query);
i=0;
while(rs.next())
{
i++;
}
title=new String[i];
author=new String[i];
pubhouse=new String[i];
price=new float[i];
id=new int[i];
i=0;
rs=stmt.executeQuery(query);
while(rs.next())
{
title[i]=rs.getString(1);
author[i]=rs.getString(2);
price[i]=rs.getFloat(3);
pubhouse[i]=rs.getString(4);
id[i]=rs.getInt(5);
%>
<tr>
<td><%= title[i] %></td>
<td><%= author[i] %></td>
<td><%= price[i] %></td>
<td><%= pubhouse[i] %></td>
<td><A href="list.jsp?action=add&item=<%= i%>"><img src="images/wing_20.jpg" width="160" height="46"></a></td>
</tr>
<%
i++;
}
rs.close();
stmt.close();
connWeb.close();
}
catch(Exception e)
{
out.println(e.getMessage());
}
%>
</table>
<%
String action=request.getParameter("action");
if(action!=null)
{
%>
<form action="purchase.jsp" mothod="post">
您的购物车中有以下物品：
<table border="1">
<tr>
<td>booktitle</td>
<td>bookauthor</td>
<td>price</td>
<td>publichouse</td>
<td>Quantity</td>
<td>--------</td>
</tr>
<%
isExist=false;
Vector buyList=(Vector)session.getValue("shoppingcart");
item=request.getParameter("item");
int bookID;
shop.Bookinfo cart=new shop.Bookinfo();
try
{
bookID=Integer.parseInt(item);
if(action.equals("add"))
{
cart.setId(id[bookID]);
cart.setBookname(title[bookID]);
cart.setAuthor(author[bookID]);
cart.setPrice(price[bookID]);
cart.setQuantity(1);
cart.setPublichouse(pubhouse[bookID]);
if (buyList==null)
{
buyList = new Vector();
buyList.addElement(cart);
}
else
{
for (int i=0;i<buyList.size();i++)
{
int tempid=((shop.Bookinfo)buyList.elementAt(i)).getId();
int tmp=((shop.Bookinfo)buyList.elementAt(i)).getQuantity();
if(tempid==cart.getId())
{
isExist=true;
((shop.Bookinfo)buyList.elementAt(i)).setQuantity(tmp+1);
}
}
if(!isExist)
buyList.addElement(cart);
}
}
if(action.equals("del"))
{
for (int i=0;i<buyList.size();i++)
{
int tempid=((shop.Bookinfo)buyList.elementAt(i)).getId();
if (tempid==bookID)
removeNo=i;
}
buyList.removeElementAt(removeNo);
}
session.putValue("shoppingcart",buyList);
totalAmount=0;
for(int i=0;i<buyList.size();i++)
{
out.println("<tr>");
out.println("<td>");
out.println(((shop.Bookinfo)buyList.elementAt(i)).getBookname());
out.println("</td>");
out.println("<td>");
out.println(((shop.Bookinfo)buyList.elementAt(i)).getAuthor());
out.println("</td>");
out.println("<td>");
out.println(((shop.Bookinfo)buyList.elementAt(i)).getPrice());
out.println("</td>");
out.println("<td>");
out.println(((shop.Bookinfo)buyList.elementAt(i)).getPublichouse());
out.println("</td>");
out.println("<td>");
out.println(((shop.Bookinfo)buyList.elementAt(i)).getQuantity());
out.println("</td>");
out.println("<td>");
int tmp=((shop.Bookinfo)buyList.elementAt(i)).getId();
int tmpQuantity=((shop.Bookinfo)buyList.elementAt(i)).getQuantity();
float price=((shop.Bookinfo)buyList.elementAt(i)).getPrice();
float booktotal=price*tmpQuantity;
totalAmount=totalAmount+booktotal;
%>
<A href="list.jsp?action=del&item=<%= tmp%>">暂时不购买：）</a>
<%
out.println("</td>");
out.println("</tr>");
}
out.println("</table>");
out.println("total:"+totalAmount);
out.println("<input type=\"submit\" value=\"submit\">");
}
catch(Exception e)
{
out.println(e.getMessage());
}
}
}
%>
</form>
</center>
</body>
</html>
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