📄 bookdetails.jsp
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<%@ page contentType="text/html; charset=UTF-8" %>
<%@ include file="common.jsp" %>
<%@ page import="java.util.*" %>
<html>
<head><title>TitleBookDescription</title>
<style type="text/css">
<!--
@import url("common.css");
-->
</style>
</head>
<%@ include file="banner.jsp" %>
<br>
<%
//Get the identifier of the book to display
request.setCharacterEncoding("UTF-8");
String select=request.getParameter("select");
String message = request.getParameter("message");
String bookId=null;
if(select.equals("1")){
bookId=message;
if(bookId==null)bookId="1";
BookDetails book = bookDB.getBookDetails(bookId);
%>
<%
if(book==null)
{
%>
<p>书号"<%=bookId%>"在数据库中不存在<p>
<strong><a href="<%=request.getContextPath()%>/bookstore.jsp">继续购物</a></strong>
<%
return;
}
%>
<p>书名：<%=convert(book.getTitle())%></p>
作者: <em><%=convert(book.getName())%> </em>
(<%=book.getYear()%>)<br>
<p>价格（元）：<%=book.getPrice()%></p>
<p>销售数量：<%=book.getSaleAmount()%></p>
<p>评论：<%=convert(book.getDescription())%></p>
<p><strong><a href="<%=request.getContextPath()%>/bookstore.jsp?Add=<%=bookId%>">加入购物车</a>
<a href="<%=request.getContextPath()%>/bookstore.jsp">继续购物</a></p></strong>
<%}
if(select.equals("2")){
String bookTitle=message;
if(bookTitle==null)bookTitle="X";
BookDetails book = bookDB.getBookByTitle(bookTitle);
%>
<%
if(book==null)
{
%>
<p>书名"<%=bookTitle%>"在数据库中不存在<p>
<strong><a href="<%=request.getContextPath()%>/bookstore.jsp">继续购物</a></strong>
<%
return;
}
bookId=book.getBookId();
%>
<p>书名：<%=convert(book.getTitle())%></p>
作者: <em><%=convert(book.getName())%> </em>
(<%=book.getYear()%>)<br>
<p>价格（元）：<%=book.getPrice()%></p>
<p>销售数量：<%=book.getSaleAmount()%></p>
<p>评论：<%=convert(book.getDescription())%></p>
<p><strong><a href="<%=request.getContextPath()%>/bookstore.jsp?Add=<%=bookId%>">加入购物车</a>
<a href="<%=request.getContextPath()%>/bookstore.jsp">继续购物</a></p></strong>
<%}
if(select.equals("3")){
String bookName=message;
if(bookName==null)bookName="余秋雨";
BookDetails book = bookDB.getBookByName(bookName);
%>
<%
if(book==null)
{
%>
<p>作者"<%=bookName%>"在数据库中不存在<p>
<strong><a href="<%=request.getContextPath()%>/bookstore.jsp">继续购物</a></strong>
<%
return;
}
bookId=book.getBookId();
%>
<p>书名：<%=convert(book.getTitle())%></p>
作者: <em><%=convert(book.getName())%> </em>
(<%=book.getYear()%>)<br>
<p>价格（元）：<%=book.getPrice()%></p>
<p>销售数量：<%=book.getSaleAmount()%></p>
<p>评论：<%=convert(book.getDescription())%></p>
<p><strong><a href="<%=request.getContextPath()%>/bookstore.jsp?Add=<%=bookId%>">加入购物车</a>
<a href="<%=request.getContextPath()%>/bookstore.jsp">继续购物</a></p></strong>
<%}%>
</body>
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