📄 disselect.jsp
字号:
<%@ page contentType="text/html; charset=gb2312" language="java" import="java.sql.*" errorPage="../error/error.jsp" %>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html >
<head>
<meta http-equiv="Content-Type" content="text/html; charset=gb2312">
<title>主页</title>
<jsp:useBean id="books" class="BookShop.MyDb" scope="page"/><link rel="stylesheet" type="text/css" href="../css/bs.css"/>
<script language="javascript" src="../css/bs.js"></script>
<%!
String idbook,categoryname,bookname,bookselect,author,outday,details,imageurl,suppliername;
int idcategory,hotdeal,cateselect;
float price;
%>
</head>
<body topmargin="0" >
<p> </p>
<table width="450" border="1" align="center" cellpadding="-1" cellspacing="0" bordercolor="#FFFFFF" bordercolorlight="#0066ff" bordercolordark="#FFFFFF" >
<caption>
<div class="two">图书分类查询</div>
<p></p>
</caption>
<tr>
<td width="139" height="22" align="center">图书类别：</td>
<form name="form2" method="post" action="disselect.jsp">
<td width="305" height="22" align="left" colspan="2">
<select name="cateselect" onChange="javascript:submit()">
<%
String sqls="SELECT * FROM category ORDER BY idcategory";
Statement stmt=books.getstmtread();
ResultSet rs=stmt.executeQuery(sqls);
if(!rs.next()){
out.print("暂无图书类别");
}else{
rs.previous();
while(rs.next()){
idcategory=rs.getInt(1);
categoryname=rs.getString(2);
categoryname=books.outStr(categoryname);
%>
<option value="<%=idcategory%>"
<%
try{
cateselect=Integer.parseInt((String)request.getParameter("cateselect"));
}catch(Exception e){
cateselect=idcategory;
}
if(cateselect==idcategory) out.print("selected");
%>
><%=categoryname%></option>
<%
}//while
}//if
books.close();
%>
</select>
</td>
</form>
</tr>
<tr>
<td height="22" align="center">图书名称：</td>
<form name="form1" method="post" action="disselect.jsp">
<td width="305" height="22" align="left" colspan="2">
<select name="bookselect" onChange="javascript:submit()">
<%
String sqls1="SELECT idbook,bookname FROM books WHERE idcategory="+cateselect+" ORDER BY idbook";
Statement stmt1=books.getstmtread();
ResultSet rs1=stmt1.executeQuery(sqls1);
if(!rs1.next()){
out.print("暂无图书");
}else{
rs1.previous();
while(rs1.next()){
idbook=rs1.getString(1);
bookname=rs1.getString(2);
idbook=books.outStr(idbook);
bookname=books.outStr(bookname);
bookselect=(String)request.getParameter("bookselect");
if(bookselect==null){
bookselect=idbook;
}
%>
<option value="<%=idbook%>"
<%
try{
if(bookselect.equals(idbook)) out.print("selected");
}catch(Exception e){
idbook="";
}
%>
><%=bookname%></option>
<%
}//while
}//if
rs1.close();
stmt1.close();
books.close();
%>
</select>
<input type="hidden" name="cateselect" value="<%=cateselect%>">
</td>
</form>
</tr>
<tr>
<td height="22" colspan="3" align="center" class="two">图书信息 </td>
</tr>
<form method="post" name="form3" action="../shop/trade.jsp">
<%
idbook=(String)request.getParameter("idbook");
String sqls4="SELECT idbook,bookname,author,outday,details,price,imageurl,hotdeal,categoryname,suppliername FROM books as a,category as b,supplier as c WHERE idbook='"+bookselect+"' AND a.idcategory=b.idcategory AND a.idsupplier=c.idsupplier";
Statement stmt4=books.getstmtread();
ResultSet rs4=stmt4.executeQuery(sqls4);
if(rs4.next()){
idbook=rs4.getString("idbook");
bookname=rs4.getString("bookname");
author=rs4.getString("author");
outday=rs4.getString("outday");
details=rs4.getString("details");
price=rs4.getFloat("price");
imageurl=rs4.getString("imageurl");
hotdeal=rs4.getInt("hotdeal");
categoryname=rs4.getString("categoryname");
suppliername=rs4.getString("suppliername");
idbook=books.outStr(idbook);
bookname=books.outStr(bookname);
author=books.outStr(author);
outday=books.outStr(outday);
details=books.outStr(details);
imageurl=books.outStr(imageurl);
categoryname=books.outStr(categoryname);
suppliername=books.outStr(suppliername);
%>
<tr>
<td width="139" height="22" align="center" >图书编号： </td>
<td width="305" height="22" ><%=idbook%> </td>
<td width="123" height="22" align="center" >图书封面</td>
</tr>
<tr>
<td height="22" align="center">图书名称：</td>
<td height="22"><%=bookname%> </td>
<td rowspan="7" align="center" valign="middle" ><p> <img src="../image/<%=imageurl%>" width="100" height="132" border="0"> </td>
</tr>
<tr>
<td height="22" align="center">图书类别：</td>
<td height="22"><%=categoryname%> </td>
</tr>
<tr>
<td height="22" align="center">供 应 商：</td>
<td height="22"><%=suppliername%> </td>
</tr>
<tr>
<td height="22" align="center">出版日期：</td>
<td height="22"><%=outday%> </td>
<tr>
<td height="22" align="center">作 者：</td>
<td height="22"><%=author%> </td>
</tr>
<tr>
<td height="22" align="center">售 价：</td>
<td height="22"><%=price%></td>
</tr>
<tr>
<td height="22" align="center">热 点 书：</td>
<td height="22"><%
if(hotdeal==1){
out.print("是");
}else{
out.print("否");
}
%></td>
</tr>
<tr>
<td height="70" align="center" valign="middle">简 介：</td>
<td colspan="2" valign="top"><%=details%> </td>
</tr>
<tr>
<td height="22" colspan="3" align="center" valign="middle"> <input type="image" src="../image/add.gif" alt="添加购物车"align="middle">
<input name="action" value="add" type="hidden">
<input type="hidden" name="id" value="<%=idbook%>">（添加购物车）</td>
</tr>
<%
}else{
%>
<tr>
<td height="70" colspan="3" align="center" valign="middle" class="red12">暂无图书</td>
</tr>
<%
}
rs4.close();
stmt4.close();
books.close();
pageContext.removeAttribute("books");
%>
</form>
</table>
</body>
</html>
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