大项目之网上书城（十二）——完成啦

主要改动

管理员添加分类，管理图书，管理用户。以及往数据库里填了几十本书。添加了错误页面。

新增代码

1.addCategory.jsp

因为之前给每个分类都建了表，而且每个表都有自己的文件夹。于是，添加分类好麻烦啊。具体见servlet

<%@ page language="java" contentType="text/html; charset=utf-8"
    pageEncoding="utf-8"%>
<!DOCTYPE html>
<html>
<head>
<title>空白</title>

</head>
<%
	if(request.getSession().getAttribute("root")==null){
		response.sendRedirect(request.getContextPath()+"/client/login.jsp");
	}else{
%>
<body style="background-color:#bbb;1400px;margin:0 auto">
<!-- 调用头部页面 -->
<div style="100%;height:100px;float:left">
<jsp:include page="/admin/head.jsp"></jsp:include>
</div>
<!-- 通用内容体大小 -->
<div style="70%;height:720px;float:left;margin-left:15%;">
<!-- 好看的图 -->
	<div style="55%;height:100%;float:left;margin-top:10%;">
		<img alt="书架" src="${pageContext.request.contextPath }/client/img/bookshelf.jpg" style="90%;">
	</div>
	<!-- 添加界面 -->
	<div style="45%;height:80%;float:left;margin-top:12%">
		<h1 style="color:#8b6914;text-align:center">添加分类</h1>
		<hr style="height:2px;border:none;border-top:5px ridge green;" />
		<form action="${pageContext.request.contextPath }/AddFenLei" method="post" class="form-horizontal" role="form">
			<div class="form-group">
				<label for="lastname" class="col-sm-3 control-label input-lg">分类名</label>
				<div class="col-sm-9">
					<input type="text" name="fenlei_name" id="fenlei_name" class="form-control input-lg"
						   placeholder="请输入分类名" style="float:left"/>
				</div>
			</div>
			<div class="form-group">
				<label for="firstname" class="col-sm-3 control-label input-lg">英文名</label>
				<div class="col-sm-9">
					<input type="text" name="feilei_table" id="fenlei_table" 
					class="form-control input-lg" placeholder="请输入英文名" style="float:left"/>
				</div>
			</div>
			<div class="form-group">
			<label for="firstname" class="col-sm-4 control-label input-lg"></label>
			<div class="col-sm-5">
				<input type="submit" name="submit" value="添加分类"
				class="form-control input-lg btn btn-warning"style="100%;float:left"/>
			</div>
		</div>
		</form>
	</div>
</div>
<!-- 调用底部页面 -->
<div style="100%;height:60px;float:left">
<jsp:include page="/admin/foot.jsp"></jsp:include>
</div>
</body>
<%} %>
</html>

效果图

2.bookManager.jsp

有点赶，就只简单写了个分类，没有分页，用加滚动条混过去吧。。

<%@page import="cn.edu.bdu.mc.beans.FenLei"%>
<%@page import="cn.edu.bdu.mc.daos.impls.FenLeiDaoImpl"%>
<%@page import="cn.edu.bdu.mc.daos.FenLeiDao"%>
<%@page import="cn.edu.bdu.mc.daos.impls.BookDaoImpl"%>
<%@page import="cn.edu.bdu.mc.daos.BookDao"%>
<%@page import="cn.edu.bdu.mc.beans.Book"%>
<%@page import="java.util.List"%>
<%@ page language="java" contentType="text/html; charset=utf-8"
    pageEncoding="utf-8"%>
<!DOCTYPE html>
<html>
<head>
<title>图书管理</title>

</head>
<%
	if(request.getSession().getAttribute("root")==null){
		response.sendRedirect(request.getContextPath()+"/client/login.jsp");
	}else{
		FenLeiDao fenLeiDao = new FenLeiDaoImpl();
		List<FenLei>fenleis = fenLeiDao.findAllFenLei();
		List<Book>books = null;
		BookDao bookDao = new BookDaoImpl();
		String clazz = request.getParameter("clazz");
		if(clazz==null){
			books = bookDao.findAllBook();
		}else{
			books = bookDao.findBookByClazz(clazz);
		}
%>
<body style="background-color:#bbb;1400px;margin:0 auto">
<!-- 调用头部页面 -->
<div style="100%;height:100px;float:left">
<jsp:include page="/admin/head.jsp"></jsp:include>
</div>
<!-- 通用内容体大小 -->
<div class="pre-scrollable" style="70%;height:720px;float:left;margin-left:15%;overflow:auto;">
	<div class="panel panel-info">
		<div class="panel-heading">
		    <div class="dropdown panel-title">
				  <a class="dropdown-toggle" type="button" data-toggle="dropdown" aria-haspopup="true" aria-expanded="true" >
				    	<font color="black">图书类别</font>
				    <span class="caret"></span>
				  </a>
				  <ul class="dropdown-menu" aria-labelledby="dropdownMenu1">
				    <li><a href="${pageContext.request.contextPath }/admin/bookManager.jsp">全部图书</a></li>
				    <li role="separator" class="divider"></li>
				    <%
				    	for(FenLei fenlei:fenleis){
				    %>
				    <li><a href="${pageContext.request.contextPath }/admin/bookManager.jsp?clazz=<%=fenlei.getFenlei_table() %>"><%=fenlei.getFenlei_name() %></a></li>
				    <%} %>
				  </ul>
				</div>
		</div>
		<table class="table">
		  	<tr>
		  		<th>书名</th>
		  		<th>价格</th>
		  		<th>类别</th>
		  		<th>数量</th>
		  		<th>描述</th>
		  		<th>操作</th>
		  	</tr>
		<%
		for(Book book:books){
		%>
		  	<tr>
		  		<td><%=book.getBook_name() %></td>
		  		<td><%=book.getPrice() %>&nbsp;元</td>
		  		<td><%=book.getClazz() %></td>
		  		<td><%=book.getCount() %></td>
		  		<td><%=book.getDescribtion() %></td>
		  		<td>
		  			<a style="font-size:14px" href="${pageContext.request.contextPath }/admin/changebook.jsp?book_id=<%=book.getBook_id() %>">修改</a>|
		  			<a style="font-size:14px" href="${pageContext.request.contextPath }/DeleteBook?book_id=<%=book.getBook_id() %>">删除</a>
		  		</td>
		  	</tr>
			<%
		};
		%>
		</table>
	</div>
</div>
<!-- 调用底部页面 -->
<div style="100%;height:60px;float:left">
<jsp:include page="/admin/foot.jsp"></jsp:include>
</div>
</body>
<%} %>
</html>

效果图

3.userManager.jsp

管理用户也比较简单，就跟管理图书差不多一个样就行了。我抄我自己！（这样保持比较一致的风格也好。）

<%@page import="cn.edu.bdu.mc.daos.impls.UserDaoImpl"%>
<%@page import="cn.edu.bdu.mc.daos.UserDao"%>
<%@page import="cn.edu.bdu.mc.beans.User"%>
<%@page import="java.util.List"%>
<%@ page language="java" contentType="text/html; charset=utf-8"
    pageEncoding="utf-8"%>
<!DOCTYPE html>
<html>
<head>
<title>用户管理</title>

</head>
<%
	if(request.getSession().getAttribute("root")==null){
		response.sendRedirect(request.getContextPath()+"/client/login.jsp");
	}else{
		UserDao userDao = new UserDaoImpl();
		List<User>users = userDao.findNormalUser();
%>
<body style="background-color:#bbb;1400px;margin:0 auto">
<!-- 调用头部页面 -->
<div style="100%;height:100px;float:left">
<jsp:include page="/admin/head.jsp"></jsp:include>
</div>
<!-- 通用内容体大小 -->
<div class="pre-scrollable" style="70%;height:720px;float:left;margin-left:15%;overflow:auto">
	<div class="panel panel-info">
		<div class="panel-heading">
		    <h3 class="panel-title">用户管理</h3>
		</div>
		<table class="table">
		  	<tr>
		  		<th>用户名</th>
		  		<th>密码</th>
		  		<th>邮箱</th>
		  		<th>性别</th>
		  		<th>描述</th>
		  		<th>操作</th>
		  	</tr>
		<%
		for(User user:users){
		%>
		  	<tr>
		  		<td><%=user.getUsername() %></td>
		  		<td><%=user.getPassword() %></td>
		  		<td><%=user.getEmail() %></td>
		  		<td><%=user.getGender() %></td>
		  		<td><%=user.getDescribtion() %></td>
		  		<td>
		  			<a style="font-size:14px" href="${pageContext.request.contextPath }/ResetPassword?user_id=<%=user.getUser_id() %>">重置密码</a>|
		  			<a style="font-size:14px" href="${pageContext.request.contextPath }/DeleteUser?user_id=<%=user.getUser_id() %>">删除</a>
		  		</td>
		  	</tr>
			<%
		};
		%>
		</table>
	</div>
</div>
<!-- 调用底部页面 -->
<div style="100%;height:60px;float:left">
<jsp:include page="/admin/foot.jsp"></jsp:include>
</div>
</body>
<%} %>
</html>

效果图

4.error404.jsp

<%@ page language="java" contentType="text/html; charset=UTF-8"
    pageEncoding="UTF-8" isErrorPage="true"%>
<!DOCTYPE html>
<html>
<head>
<title>错误404</title>
</head>
<body style="background-color:#bbb;1400px;margin:0 auto">
<!-- 调用头部页面 -->
<div style="100%;height:100px;float:left">
<jsp:include page="/client/head.jsp"></jsp:include>
</div>
<!-- 通用内容体大小 -->
<div style="70%;height:720px;float:left;margin-left:15%;">
	<img alt="这是404页面" src="${pageContext.request.contextPath }/client/img/404.jpg" width="100%" height="100%"/>
</div>
<!-- 调用底部页面 -->
<div style="100%;height:60px;float:left">
<jsp:include page="/client/foot.jsp"></jsp:include>
</div>
</body>
</html>

效果图

5.error500.jsp

<%@ page language="java" contentType="text/html; charset=UTF-8"
    pageEncoding="UTF-8" isErrorPage="true"%>
<!DOCTYPE html>
<html>
<head>
<title>错误500</title>
</head>
<body style="background-color:#bbb;1400px;margin:0 auto">
<!-- 调用头部页面 -->
<div style="100%;height:100px;float:left">
<jsp:include page="/client/head.jsp"></jsp:include>
</div>
<!-- 通用内容体大小 -->
<div style="70%;height:720px;float:left;margin-left:15%;">
	<img alt="这是500页面" src="${pageContext.request.contextPath }/client/img/500.jpg" width="100%" height="100%"/>
</div>
<!-- 调用底部页面 -->
<div style="100%;height:60px;float:left">
<jsp:include page="/client/foot.jsp"></jsp:include>
</div>
</body>
</html>

效果图

6.errorelse.jsp

<%@ page language="java" contentType="text/html; charset=UTF-8"
    pageEncoding="UTF-8" isErrorPage="true"%>
<!DOCTYPE html>
<html>
<head>
<title>其他错误</title>
</head>
<body style="background-color:#bbb;1400px;margin:0 auto">
<!-- 调用头部页面 -->
<div style="100%;height:100px;float:left">
<jsp:include page="/client/head.jsp"></jsp:include>
</div>
<!-- 通用内容体大小 -->
<center style="color:red;font-size:30px">
我也不知道你遇到了什么错误。。<br/>
I also don't know what you meet...
</center>
<!-- 调用底部页面 -->
<div style="100%;height:60px;float:left">
<jsp:include page="/client/foot.jsp"></jsp:include>
</div>
</body>
</html>

效果图

7.web.xml

<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://xmlns.jcp.org/xml/ns/javaee" xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/javaee http://xmlns.jcp.org/xml/ns/javaee/web-app_3_1.xsd" version="3.1">
  <display-name>bookstore</display-name>
  <welcome-file-list>
    <welcome-file>index.html</welcome-file>
    <welcome-file>index.htm</welcome-file>
    <welcome-file>index.jsp</welcome-file>
    <welcome-file>default.html</welcome-file>
    <welcome-file>default.htm</welcome-file>
    <welcome-file>default.jsp</welcome-file>
  </welcome-file-list>
  <error-page>
    <error-code>404</error-code>
    <location>/error404.jsp</location>
</error-page>
<error-page>
    <error-code>500</error-code>
    <location>/error500.jsp</location>
</error-page>
<error-page>
   <exception-type>java.lang.Exception</exception-type>
   <location>/errorelse.jsp</location>
</error-page>
</web-app>

8.addFenLeiServlet

package cn.edu.bdu.mc.servlets;

import java.io.BufferedWriter;
import java.io.File;
import java.io.FileWriter;
import java.io.IOException;
import java.sql.SQLException;

import javax.servlet.ServletException;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

import cn.edu.bdu.mc.daos.BookDao;
import cn.edu.bdu.mc.daos.impls.BookDaoImpl;

/**
 * Servlet implementation class AddFenLeiServlet
 */
@WebServlet("/AddFenLei")
public class AddFenLeiServlet extends HttpServlet {
	private static final long serialVersionUID = 1L;
       
    /**
     * @see HttpServlet#HttpServlet()
     */
    public AddFenLeiServlet() {
        super();
        // TODO Auto-generated constructor stub
    }

	/**
	 * @see HttpServlet#doGet(HttpServletRequest request, HttpServletResponse response)
	 */
	@SuppressWarnings("deprecation")
	protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
		
		String fenlei_name = request.getParameter("fenlei_name");
		String fenlei_table = request.getParameter("feilei_table");
		BookDao bookDao = new BookDaoImpl();
		try {
			bookDao.addFenLei(fenlei_table, fenlei_name);
		} catch (SQLException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		}
		String realPath = request.getRealPath("client\"+fenlei_table);
		File file = new File(realPath);
		file.mkdir();
		String htmlIndex="<%@page import="cn.edu.bdu.mc.services.impls.BookServiceImpl"%>
" + 
				"<%@page import="cn.edu.bdu.mc.beans.Book"%>
" + 
				"<%@page import="java.util.List"%>
" + 
				"<%@ page language="java" contentType="text/html; charset=utf-8"
" + 
				"    pageEncoding="utf-8"%>
" + 
				"<!DOCTYPE html>
" + 
				"<html>
" + 
				"<head>
" + 
				"<title>主页</title>
" + 
				"<style type="text/css">
" + 
				"	.inc{
" + 
				"		float:left;
" + 
				"		margin-left:3%;
" + 
				"		margin-top:4%;
" + 
				"		16%;
" + 
				"		height:25%;
" + 
				"		background-color:rgba(160,128,255,0.8);
" + 
				"	}
" + 
				"</style>
" + 
				"<script type="text/javascript" src="${pageContext.request.contextPath}/jquery-3.3.1/jquery-3.3.1.min.js"></script>
" + 
				"<script type="text/javascript">
" + 
				"$(function(){
" + 
				"		$("img").click(function(){
" + 
				"			var book_id=$(this)[0].src.split("=")[1];
" + 
				"			if(book_id!=0){
" + 
				"				$.post("../../FindPageById?book_id="+book_id,function(data){
" + 
				"					window.location.href=data.split("/")[1];
" + 
				"				});
" + 
				"			}
" + 
				"		});
" + 
				"});
" + 
				"</script>
" + 
				"</head>
" + 
				"<body style="background-color:#bbb;1400px;margin:0 auto">
" + 
				"<!-- 调用头部页面 -->
" + 
				"<div style="100%;height:100px;float:left">
" + 
				"<jsp:include page="/client/head.jsp"></jsp:include>
" + 
				"</div>
" + 
				"<!-- 通用内容体大小 -->
" + 
				"<div style="70%;height:886px;float:left;margin-left:15%;">
" + 
				"	<!-- 二级导航 -->
" + 
				"	<jsp:include page="/client/head2.jsp"></jsp:include>	
" + 
				"	<img id="a1">
" + 
				"	<!-- 通用界面 -->
" + 
				"	<div style="100%;height:800px;float:left;margin-top:2%;background-color:#ccc;">
" + 
				"		<% List<Book>list = new BookServiceImpl().findBookByClazz(""+fenlei_table+"");
" + 
				"			int i=1;
" + 
				"			for(Book book:list){
" + 
				"				if(i>15){break;}%>
" + 
				"			<div class="inc" <%if(i%5==1){ %>style="margin-left:4%"<%} %>>
" + 
				"				<img alt="图书" src="${pageContext.request.contextPath}/ShuImgById?book_id=<%=book.getBook_id() %>" style="100%;height:100%;float:left;"/>
" + 
				"			</div>
" + 
				"				<%
" + 
				"			};
" + 
				"		%>
" + 
				"	</div>
" + 
				"</div>
" + 
				"<!-- 调用底部页面 -->
" + 
				"<div style="100%;height:60px;float:left">
" + 
				"<jsp:include page="/client/foot.jsp"></jsp:include>
" + 
				"</div>
" + 
				"</body>
" + 
				"</html>";
		String htmlShu="<%@page import="cn.edu.bdu.mc.beans.FenLei"%>
" + 
				"<%@page import="cn.edu.bdu.mc.daos.impls.FenLeiDaoImpl"%>
" + 
				"<%@page import="cn.edu.bdu.mc.daos.FenLeiDao"%>
" + 
				"<%@page import="cn.edu.bdu.mc.beans.User"%>
" + 
				"<%@page import="cn.edu.bdu.mc.utils.CookieUtil"%>
" + 
				"<%@page import="cn.edu.bdu.mc.services.impls.BookServiceImpl"%>
" + 
				"<%@page import="cn.edu.bdu.mc.services.BookService"%>
" + 
				"<%@page import="cn.edu.bdu.mc.beans.Book"%>
" + 
				"<%@ page language="java" contentType="text/html; charset=utf-8"
" + 
				"    pageEncoding="utf-8"%>
" + 
				"<%@ taglib uri="http://java.sun.com/jsp/jstl/core" prefix="c" %>
" + 
				"<!DOCTYPE html>
" + 
				"<html>
" + 
				"<head>
" + 
				"	<% 
" + 
				"	BookService bookService = new BookServiceImpl();
" + 
				"	int er_id = Integer.parseInt(request.getParameter("er_id"));
" + 
				"	Book book = bookService.findBookByClazzAndEr_id(""+fenlei_table+"",er_id);
" + 
				"	bookService.click(book.getBook_id());
" + 
				"	User user = (User)session.getAttribute("user");
" + 
				"	if(user!=null){
" + 
				"		user.setBook_history(book.getBook_id()+"#"+user.getBook_history());
" + 
				"		if(user.getBook_history().split("#").length>5){
" + 
				"			user.setBook_history(user.getBook_history().substring(0, user.getBook_history().lastIndexOf("#")));
" + 
				"		}
" + 
				"	}
" + 
				"	%>
" + 
				"<title><%=book.getBook_name() %></title>
" + 
				"<style type="text/css">
" + 
				"	.inc{
" + 
				"		float:left;
" + 
				"		margin-left:3%;
" + 
				"		margin-top:1%;
" + 
				"		16%;
" + 
				"		height:90%;
" + 
				"		background-color:rgba(160,128,255,0.8);
" + 
				"	}
" + 
				"</style>
" + 
				"<script type="text/javascript" src="${pageContext.request.contextPath}/jquery-3.3.1/jquery-3.3.1.min.js"></script>
" + 
				"<script type="text/javascript" src="${pageContext.request.contextPath}/client/js/shu.js"></script>
" + 
				"</head>
" + 
				"<body style="background-color:#bbb;1400px;margin:0 auto">
" + 
				"<!-- 调用头部页面 -->
" + 
				"<div style="100%;height:100px;float:left">
" + 
				"<jsp:include page="/client/head.jsp"></jsp:include>
" + 
				"</div>
" + 
				"<!-- 通用内容体大小 -->
" + 
				"<div style="70%;height:886px;float:left;margin-left:15%;">
" + 
				"	<!-- 二级导航 -->
" + 
				"	<jsp:include page="/client/head2.jsp"></jsp:include>	
" + 
				"	<!-- 通用界面 -->
" + 
				"	<div style="100%;height:800px;float:left;margin-top:2%;background-color:#ccc;">
" + 
				"		<div style="100%;height:48%;float:left;margin-top:2%;margin-left:2%;">
" + 
				"			<div style="30%;height:100%;background-color:rgba(111,123,145,0.8);float:left">
" + 
				"				<img alt="图书" src="${pageContext.request.contextPath}/ShuImgById?book_id=<%=book.getBook_id() %>" style="100%;"/>
" + 
				"			</div>
" + 
				"			<div style="60%;margin-left:8%;height:100%;float:left">
" + 
				"				<h2 style="margin-left:2%;float:left;94%"><%=book.getBook_name() %></h2>
" + 
				"				<p style="margin-left:2%;float:left;94%;height:30%;">详情：<%=book.getDescribtion() %><a style="margin-left:2%;" href="./">点击</a>查看更多同类好书！</p>
" + 
				"				<h2 style="margin-left:2%;margin-top:1%;float:left;94%;color:rgba(200,0,0,0.8);text-align:center;background-color:rgba(64,123,233,0.4);height:18%;line-height:200%;">惊爆价：<%=book.getPrice() %>&nbsp;元&nbsp;&nbsp;&nbsp;&nbsp;
" + 
				"					<font style="color:rgba(0,0,0,0.6);font-size:24px;"><del>原价：<%double price = (int)(book.getPrice()*1.4)-0.01; %><%=price %>&nbsp;元</del></font>
" + 
				"				</h2>
" + 
				"				<font style="margin-left:2%;margin-top:1%;float:left;94%;font-size:16px;">类别：<%=new FenLeiDaoImpl().findByTable(book.getClazz()).getFenlei_name() %></font>
" + 
				"				<font style="margin-left:2%;margin-top:1%;float:left;font-size:16px;">点击量：<%=book.getClick_num() %></font>
" + 
				"				<font style="margin-left:2%;margin-top:1%;float:left;font-size:16px;">购买量：<%=book.getBuy_num() %></font>
" + 
				"				<font style="margin-left:2%;margin-top:1%;float:left;font-size:16px;">热度：<%=book.getRe_du() %></font>
" + 
				"				<font style="margin-left:2%;margin-top:1%;float:left;94%;font-size:16px;">剩余数量：<%=book.getCount() %></font>
" + 
				"				<% if(request.getSession().getAttribute("user")==null){ %>
" + 
				"					<font style="margin-left:2%;margin-top:1%;float:left;"><a href="${pageContext.request.contextPath}/client/login.jsp">登录</a>后可购买书籍。</font>
" + 
				"				<% }else{ %>
" + 
				"					<a style="margin-left:2%;margin-top:1%;float:left;" href="${pageContext.request.contextPath}/AddIntoCart?book_id=<%=book.getBook_id() %>">加入购物车</a>&nbsp;&nbsp;&nbsp;&nbsp;
" + 
				"					<a style="margin-left:2%;margin-top:1%;float:left;" href="${pageContext.request.contextPath}/NewOrder?book_id_list=<%=book.getBook_id() %>">购买</a>
" + 
				"				<% } %>
" + 
				"			</div>
" + 
				"		</div>
" + 
				"		<div style="96%;height:40%;float:left;margin-top:2%;margin-left:2%;">
" + 
				"			<div style="100%;height:15%;text-align:center;line-height:50px;background-color:rgba(85,107,47,0.8);float:left">
" + 
				"				<font color="#ddd" style="font-size:20px;">为您推荐热门书籍</font>
" + 
				"			</div>
" + 
				"			<div style="100%;height:85%;text-align:center;line-height:45px;background-color:rgba(85,139,84,0.8);float:left">
" + 
				"				<div class="inc" style="margin-left:4%">
" + 
				"					<img alt="图书" src="${pageContext.request.contextPath}/XinShuImg?shu=1" style="100%;height:100%" id="re1"/>
" + 
				"				</div>
" + 
				"				<div class="inc">
" + 
				"					<img alt="图书" src="${pageContext.request.contextPath}/XinShuImg?shu=2" style="100%;height:100%" id="re2"/>
" + 
				"				</div>
" + 
				"				<div class="inc">
" + 
				"					<img alt="图书" src="${pageContext.request.contextPath}/XinShuImg?shu=3" style="100%;height:100%" id="re3"/>
" + 
				"				</div>
" + 
				"				<div class="inc">
" + 
				"					<img alt="图书" src="${pageContext.request.contextPath}/XinShuImg?shu=4" style="100%;height:100%" id="re4"/>
" + 
				"				</div>
" + 
				"				<div class="inc">
" + 
				"					<img alt="图书" src="${pageContext.request.contextPath}/XinShuImg?shu=5" style="100%;height:100%" id="re5"/>
" + 
				"				</div>
" + 
				"			</div>
" + 
				"		</div>
" + 
				"	</div>
" + 
				"</div>
" + 
				"<!-- 调用底部页面 -->
" + 
				"<div style="100%;height:60px;float:left">
" + 
				"<jsp:include page="/client/foot.jsp"></jsp:include>
" + 
				"</div>
" + 
				"</body>
" + 
				"</html>";
		BufferedWriter bw=new BufferedWriter(new FileWriter(realPath+"\index.jsp"));
		bw.write(htmlIndex);
		BufferedWriter bw1 = new BufferedWriter(new FileWriter(realPath+"\shu.jsp"));
		bw1.write(htmlShu);
		bw.close();
		bw1.close();
		realPath = "D:\zhang-java\WebContent\client\"+fenlei_table;
		file = new File(realPath);
		file.mkdir();
		BufferedWriter bw2=new BufferedWriter(new FileWriter(realPath+"\index.jsp"));
		bw2.write(htmlIndex);
		BufferedWriter bw3 = new BufferedWriter(new FileWriter(realPath+"\shu.jsp"));
		bw3.write(htmlShu);
		bw2.close();
		bw3.close();
		response.sendRedirect(request.getContextPath()+"/admin/index.jsp");
	}

	/**
	 * @see HttpServlet#doPost(HttpServletRequest request, HttpServletResponse response)
	 */
	protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
		// TODO Auto-generated method stub
		doGet(request, response);
	}

}

9.bookDao里的addFenLei

@Override
	public void addFenLei(String fenleiming,String fenlei_name) throws SQLException {
		// TODO Auto-generated method stub
		String sql = "CREATE TABLE `"+fenleiming+"` (
" + 
				"  `book_name` varchar(40) NOT NULL,
" + 
				"  `price` double NOT NULL,
" + 
				"  `describtion` varchar(200) DEFAULT NULL,
" + 
				"  `clazz` varchar(40) NOT NULL,
" + 
				"  `second_id` int(11) NOT NULL AUTO_INCREMENT,
" + 
				"  `book_img` blob,
" + 
				"  `click_num` int(11) NOT NULL,
" + 
				"  `buy_num` int(9) NOT NULL,
" + 
				"  `re_du` int(12) DEFAULT NULL,
" + 
				"  `count` int(6) NOT NULL,
" + 
				"  `is_new` int(1) NOT NULL,
" + 
				"  `insert_date` date NOT NULL,
" + 
				"  `book_id` int(11) DEFAULT NULL,
" + 
				"  PRIMARY KEY (`second_id`)
" + 
				") ENGINE=InnoDB AUTO_INCREMENT=1 DEFAULT CHARSET=utf8;";
		String sql1="CREATE TRIGGER `"+fenleiming+"_insert` AFTER INSERT ON `"+fenleiming+"` FOR EACH ROW begin
" + 
				"	insert into book(book_name,price,describtion,clazz,second_id,click_num,buy_num,count,is_new,insert_date,book_img) values(NEW.book_name,NEW.price,NEW.describtion,NEW.clazz,NEW.second_id,0,0,NEW.count,1,NEW.insert_date,new.book_img);
" + 
				"end
" + 
				";;
" ;
		String sql2="CREATE TRIGGER `"+fenleiming+"1_update` BEFORE UPDATE ON `"+fenleiming+"` FOR EACH ROW begin
" + 
				"	set new.re_du = new.click_num+new.buy_num*100;
" + 
				"	end
" + 
				";;
" ;
		String sql3="CREATE TRIGGER `"+fenleiming+"_update` AFTER UPDATE ON `"+fenleiming+"` FOR EACH ROW begin
" + 
				"	update book set book.re_du = NEW.click_num + NEW.buy_num * 100,book.click_num = NEW.click_num,book.buy_num = NEW.buy_num,book.book_img=new.book_img where clazz = new.clazz and second_id = new.second_id;
" + 
				"end
" + 
				";;
" ;
		String sql4="insert into fenlei(fenlei_name,fenlei_table) values('"+fenlei_name+"','"+fenleiming+"')";
		Connection connection = JDBCUtil.getConn();
		Statement statement = connection.createStatement();
		statement.addBatch(sql);
		statement.addBatch(sql1);
		statement.addBatch(sql2);
		statement.addBatch(sql3);
		statement.addBatch(sql4);
		statement.executeBatch();
	}

总结

可能还有忘记了的改动。emmm我将在github上上传我的完整代码。

github页面

bookstoreZhang

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原文地址：https://www.cnblogs.com/zhangA/p/11087245.html