<%@ page language="java" contentType="text/html; charset=UTF-8" pageEncoding="UTF-8"%>
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8" />
<title>bootstore</title>
<!--引入bootstrap.css-->
<link rel="stylesheet" type="text/css" href="<%=request.getContextPath()%>/bootstrap/css/bootstrap.css"/>
<!--引入myscss.css-->
<link rel="stylesheet" type="text/css" href="<%=request.getContextPath()%>/css/myscss.css" />
<!--引入jquery.js-->
<script type="text/javascript" src="<%=request.getContextPath()%>/bootstrap/js/jquery-3.1.1.js"></script>
<!--bootstrap.js-->
<script type="text/javascript" src="<%=request.getContextPath()%>/bootstrap/js/bootstrap.js"></script>
<!--home.js-->
<script type="text/javascript" src="<%=request.getContextPath()%>/foreground/book/home.js"></script>
<!--contextPath-->
<script type="text/javascript">
var contextPath = "${pageContext.request.contextPath}";
</script>
</head>
<body>
<!--公用头部-->
<!-- <div id="navhead"></div> -->
<%@include file="/foreground/common/head.jsp"%>
<!--<nav class="navbar navbar-default">
<div class="container">
<div class="navbar-header">
<button type="button" data-toggle="collapse" data-target="#collapse-1" aria-expanded="false" class="navbar-toggle collapsed">
<span class="sr-only">Toggle navigation</span>
<span class="icon-bar"></span>
<span class="icon-bar"></span>
<span class="icon-bar"></span>
<span class="icon-bar"></span>
</button>
<a href="index.html">
<img src="../../img/bookimages/logo.png" />
</a>
</div>
<div class="collapse navbar-collapse backcolor" id="collapse-1">
<ul class="nav navbar-nav pull-right">
<li><a href="#"><span class="glyphicon glyphicon-shopping-cart">购物车|</span></a></li>
<li><a href="#"><span class="glyphicon glyphicon-question-sign">帮助中心|</span></a></li>
<li><a href="login.html"><span class="glyphicon glyphicon-user">我的账户|</span></a></li>
<li><a href="register.html"><span class="glyphicon glyphicon-pencil">新用户注册</span></a></li>
</ul>
</div>
</div>
</nav>-->
<!--导航栏-->
<div class="container">
<div class="text-nowrap text-center menu">
<a href="<%=request.getContextPath()%>/ShowProductsServlet?currentPage=1&category=文学">文学</a>
<a href="<%=request.getContextPath()%>/ShowProductsServlet?currentPage=1&category=生活">生活</a>
<a href="<%=request.getContextPath()%>/ShowProductsServlet?currentPage=1&category=计算机">计算机</a>
<a href="<%=request.getContextPath()%>/ShowProductsServlet?currentPage=1&category=外语">外语</a>
<a href="<%=request.getContextPath()%>/ShowProductsServlet?currentPage=1&category=经管">经管</a>
<a href="<%=request.getContextPath()%>/ShowProductsServlet?currentPage=1&category=励志">励志</a>
<a href="<%=request.getContextPath()%>/ShowProductsServlet?currentPage=1&category=社科">社科</a>
<a href="<%=request.getContextPath()%>/ShowProductsServlet?currentPage=1&category=学术">学术</a>
<a href="<%=request.getContextPath()%>/ShowProductsServlet?currentPage=1&category=少儿">少儿</a>
<a href="<%=request.getContextPath()%>/ShowProductsServlet?currentPage=1&category=艺术">艺术</a>
<a href="<%=request.getContextPath()%>/ShowProductsServlet?currentPage=1&category=原版">原版</a>
<a href="<%=request.getContextPath()%>/ShowProductsServlet?currentPage=1&category=科技">科技</a>
<a href="<%=request.getContextPath()%>/ShowProductsServlet?currentPage=1&category=考试">考试</a>
<a href="<%=request.getContextPath()%>/ShowProductsServlet?currentPage=1&category=生活百科">生活百科</a>
<a href="<%=request.getContextPath()%>/ShowProductsServlet?currentPage=1&category=全部目录商品" id="yellow">全部目录商品</a>
</div>
<div class="clearfix searchcolor">
<form class="navbar-form navbar-right searchmargin" role="search">
<div class="form-group">
<input id="searchContent" type="text" class="form-control">
<div id="searchResult" style="background:Snow;position:absolute;left:71%;width:15%;z-index:1;"></div>
</div>
<button type="button" οnclick="doSearch()" class="btn btn-info">搜索</button>
</form>
</div>
</div>
<!--新书上架-->
<div class="container margintop">
<div class="row">
<div class="col-md-2"></div>
<div class="col-md-8">
<div class="media">
<div class="media-left">
<a href="#">
<img class="media-object" src="<%=request.getContextPath()%>/img/otherimages/home_book.PNG" alt="图书">
</a>
</div>
<div class="media-right paddingleft">
<h2 class="bg-danger">新书上架</h2>
<h5 class="htext">JAVA入门经典</h5>
<p class="text-muted">《Java入门经典》,是2012年出版的图书,是2012年出版的图书是2012年出版的图书作者是Rogers Cadenhead。 《Java入门经典(第6版)》总共24章,先讲解了Java程序的编写流程、工作原理等内容;然后介绍了有关Java编程 的基本知识,包括变量、条件语句、</p>
<img class="img-responsive thumbnail" src="<%=request.getContextPath()%>/img/otherimages/home_book2.PNG">
</div>
</div>
</div>
<div class="col-md-2"></div>
</div>
</div>
<!--公告板和本周热卖-->
<div class="container margintop">
<div class="row">
<div class="col-md-1"></div>
<div class="col-md-5">
<h2 class="bg-success">公告板</h2>
<ul class="list-group-item">
<li><a>图书三折起</a></li>
<li><a>甩卖了,<java疯狂讲义10元起售></a></li>
<li><a>新书到了,欢迎订购</a></li>
<li><a>系统维护通知</a></li>
<li><a>好消息好消息</a></li>
</ul>
</div>
<div class="col-md-5">
<h2 class="bg-danger">本周热卖</h2>
<div class="pull-left text-center" id="book">
<div class="col-sm-6">
<img src="<%=request.getContextPath()%>/img/bookimage/20285763-1_b.jpg" /><br />
<span>书名:java核心技术</span><br />
<span>售价:XXX</span>
</div>
<div class="col-sm-6">
<img src="<%=request.getContextPath()%>/img/bookimage/20412979-1_b.jpg" /><br />
<span>书名:javascript</span><br />
<span>售价:XXX</span>
</div>
</div>
</div>
<div class="col-md-1"></div>
</div>
</div>
<nav class="navbar navbar-default bottom margin">
<div class="container">
<div class="row">
<div class="col-md-1"></div>
<div class="col-md-4">
<img src="<%=request.getContextPath()%>/img/otherimages/logo.png">
</div>
<div class="col-md-7">
<div style="margin-top: 10px;">
CONTACT US<br>
COPYRIGHT 2017 BootStore AS Rights RESERVED
</div>
</div>
</div>
</div>
</nav>
</body>
</html>
//输入框键盘弹起事件,在这里发送ajax请求
$(function(){
$("#searchContent").keyup(function(){
//设置ajax请求url和请求内容
var sendUrl = contextPath+"/AjaxShowSearchProductNameServlet?time"+new Date().getTime();
var sendDate = {
"value":$("#searchContent").val()
}
//发送ajax请求
$.ajax({
type:"post",
url:sendUrl,
data:sendDate,
async:true,
//请求成功的回调函数
success:function(backData,textStatus,xmlHttprequest){
var ss = backData.split(",");
var childDiv = "";
for(var i = 0;i < ss.length;i++){
childDiv +="<div οnclick='setSearchContent(this)'>" + ss[i] + "</div>";
}
//显示搜索框
$("#searchResult").html(childDiv);
$("#searchResult").show();
}
});
});
});
//选中搜索列表中的一条数据,设置为搜索框内容
function setSearchContent(caller){
$("#searchContent").val($(caller).html());
$("#searchResult").hide();
}
//搜索功能
function doSearch(){
//获取要搜索的内容
var category = $("#searchContent").val();
//alert(contextPath+"/ShowBlurProductsServlet?category="+category);
window.location.href = contextPath+"/ShowBlurProductsServlet?category="+category;
}
<%@ page language="java" contentType="text/html; charset=UTF-8" pageEncoding="UTF-8"%>
<%@ taglib uri="http://java.sun.com/jsp/jstl/core" prefix="c" %>
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>bookcategory</title>
<!--引入bootstrap.css-->
<link rel="stylesheet" type="text/css" href="<%=request.getContextPath()%>/bootstrap/css/bootstrap.css"/>
<!--引入myscss.css-->
<link rel="stylesheet" type="text/css" href="<%=request.getContextPath()%>/css/myscss.css" />
<!--引入jquery.js-->
<script type="text/javascript" src="<%=request.getContextPath()%>/bootstrap/js/jquery-3.1.1.js"></script>
<!--bootstrap.js-->
<script type="text/javascript" src="<%=request.getContextPath()%>/bootstrap/js/bootstrap.js"></script>
<!--bookcategory.js-->
<script type="text/javascript" src="<%=request.getContextPath()%>/foreground/book/bookcategory.js"></script>
</head>
<body>
<!--公用头部-->
<!-- <div id="navhead"></div> -->
<%@include file="/foreground/common/head.jsp"%>
<!--路径导航-->
<div class="container">
<ol class="breadcrumb">
<li><a href="<%=request.getContextPath()%>/foreground/book/home.jsp">首页</a></li>
<li><a id="navpath" href="#">全部商品</a></li>
</ol>
</div>
<!--商品列表-->
<div class="container">
<div class="row">
<div class="col-md-1"></div>
<div class="col-md-10">
<img class="img" src="<%=request.getContextPath()%>/img/otherimages/productlist.gif" />
<div class="text-center" id="books">
<c:forEach var="book" varStatus="bookidx" items="${bookPage.ps}">
<div class="col-md-3">
<div class="thumbnail">
<img src="<%=request.getContextPath()%>/${book.imgurl}"/><br />
<span>书名:${book.name}</span><br />
<span>售价:${book.price}</span><br />
<input type="image" οnclick="addCart('${book.id}','${book.name}','${book.price}','${book.num}')" src="<%=request.getContextPath()%>/img/bookimages/buybutton.gif" />
</div>
</div>
</c:forEach>
</div>
</div>
<div class="col-md-1"></div>
</div>
</div>
<!--分页-->
<c:if test="${bookPage.isblur!='yes'}">
<div class="container">
<nav class="text-center">
<ul class="pagination text-center" >
<li><a href="<%=request.getContextPath()%>/ShowProductsServlet?currentPage=1&category=${bookPage.category}"><span>«首页</span> </a></li>
<li><a href="<%=request.getContextPath()%>/ShowProductsServlet?currentPage=${(bookPage.currentPage>1)?(bookPage.currentPage-1):1}&category=${bookPage.category}">上一页</a></li>
<li><a href="<%=request.getContextPath()%>/ShowProductsServlet?currentPage=${(bookPage.currentPage<bookPage.totalPage)?(bookPage.currentPage+1):bookPage.totalPage}&category=${bookPage.category}">下一页</a></li>
<li><a href="<%=request.getContextPath()%>/ShowProductsServlet?currentPage=${bookPage.totalPage}&category=${bookPage.category}"> <span>末页»</span></a></li>
<li class="pagespan">${bookPage.currentPage}/${bookPage.totalPage}</li>
</ul>
</nav>
</div>
</c:if>
</body>
</html>
//1.路径导航部分
//截取从home.html传过来的URL
$(function(){
var url = window.location.search;//从问号 (?) 开始的 URL(查询部分),此时等号后面是乱码
url = decodeURI(url);//解码,把乱码变成正常的文字
var substr = url.substr(url.indexOf("category=")+9);//截取字符串,截取category=之后的内容
$("#navpath").html(substr);//将截取到的字符串放到路径导航的位置
});
//2.添加购物车部分
//思路:把添加购物车的数据存放在localStorage中
//方法传参:书的id,书名,书售价,书的库存
function addCart(id,name,price,num){
//1.创建一个js对象
var book = {
"product_id":id, //书的id
"name":name, //书名
"price":price, //售价
"num":num, //库存
"buynum":1 //购买数量
}
//2.获取已经保存的数据
var storebook = localStorage.getItem("carts");
//3.将已经获取到的数据转换成数组
var bookArr = JSON.parse(storebook);//JSON.parse() 方法解析一个JSON字符串
//如果购物车离得数据为空,说明从来没有保存过数据
if(bookArr == null){
//创建一个数组
var books = new Array();
//把要保存的数据存到数组中
books.push(book);
//将数组转换成字符串
var bookstr = JSON.stringify(books);
//将字符串保存到localStorge中
localStorage.setItem("carts",bookstr);
}
//已经存过数据了
else{
//1.判断我们存的书籍是否已经在购物车了,如果存在,数量+1
var isFind = false;
for(var i = 0;i < bookArr.length; i++){
var b = bookArr[i];
if(b.product_id == book.product_id){
b.buynum++;
isFind = true;
break;
}
}
//2.如果不存在,将书籍添加到购物车中
if(isFind == false){
bookArr.push(book);
}
//3.把bookArr重新转换成字符串保存
var s = JSON.stringify(bookArr);
localStorage.setItem("carts",s);
}
alert("添加成功!");
}
package com.chinasoft.servlet;
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 com.chinasoft.dao.impl.ImplProductDao;
import com.chinasoft.entity.PageBean;
/**
* @author jf
* 处理书籍信息的显示
*/
@WebServlet("/ShowProductsServlet")
public class ShowProductsServlet extends HttpServlet {
private static final long serialVersionUID = 1L;
public ShowProductsServlet() {
super();
}
protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
//1.获取请求参数
String currentPage = request.getParameter("currentPage");
String category = request.getParameter("category");
//2.根据请求参数查询数据库
ImplProductDao implProductDao = new ImplProductDao();
try {
PageBean bookPage = implProductDao.findPageBooks(Integer.parseInt(currentPage), 8, category);
//3.保存数据、跳转页面
request.getSession().setAttribute("bookPage", bookPage);
request.getRequestDispatcher("/foreground/book/bookcategory.jsp").forward(request, response);
} catch (NumberFormatException e) {
e.printStackTrace();
} catch (SQLException e) {
e.printStackTrace();
}
}
protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
doGet(request, response);
}
}
package com.chinasoft.servlet;
import java.io.IOException;
import java.sql.SQLException;
import java.util.List;
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 com.chinasoft.dao.impl.ImplProductDao;
import com.chinasoft.entity.Product;
/**
* @author jf
* 功能:根据搜索条件返回符合条件的书名
*/
@WebServlet("/AjaxShowSearchProductNameServlet")
public class AjaxShowSearchProductNameServlet extends HttpServlet {
private static final long serialVersionUID = 1L;
public AjaxShowSearchProductNameServlet() {
super();
}
protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
//1.获取请求参数
String value = request.getParameter("value");
ImplProductDao implProductDao = new ImplProductDao();
try {
//2.根据请求模糊检索数据库
List<Product> list = implProductDao.findBooksByBlurName(value);
//3.把所有符合条件的书拼接成字符串
String books = "";
if("".equals(value)){
}else{
for(int i = 0;i<list.size();i++){
if(i>0){
books += ",";
}
books += list.get(i).getName();
}
}
//4.向客户端输出字符串
response.getWriter().write(books);
} catch (SQLException e) {
e.printStackTrace();
}
}
protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
doGet(request, response);
}
}
package com.chinasoft.servlet;
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 com.chinasoft.dao.impl.ImplProductDao;
import com.chinasoft.entity.PageBean;
/**
* @author jf
* 根据搜索框的搜索内容,搜索符合条件的书籍,跳转新页面显示书籍
*/
@WebServlet("/ShowBlurProductsServlet")
public class ShowBlurProductsServlet extends HttpServlet {
private static final long serialVersionUID = 1L;
public ShowBlurProductsServlet() {
super();
}
protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
//1.获取请求参数
String category = request.getParameter("category");
//2.根据请求参数查询数据库
ImplProductDao implProductDao = new ImplProductDao();
try {
PageBean bookPage = implProductDao.findPageBooksByBlurName(category);
//3.保存数据、跳转页面
request.getSession().setAttribute("bookPage", bookPage);
request.getRequestDispatcher("/foreground/book/bookcategory.jsp").forward(request, response);
}catch (NumberFormatException e) {
e.printStackTrace();
}
catch (SQLException e) {
e.printStackTrace();
}
}
protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
doGet(request, response);
}
}
package com.chinasoft.servlet;
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 com.chinasoft.dao.impl.ImplProductDao;
import com.chinasoft.entity.PageBean;
/**
* @author jf
* 处理书籍信息的显示
*/
@WebServlet("/ShowProductsServlet")
public class ShowProductsServlet extends HttpServlet {
private static final long serialVersionUID = 1L;
public ShowProductsServlet() {
super();
}
protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
//1.获取请求参数
String currentPage = request.getParameter("currentPage");
String category = request.getParameter("category");
//2.根据请求参数查询数据库
ImplProductDao implProductDao = new ImplProductDao();
try {
PageBean bookPage = implProductDao.findPageBooks(Integer.parseInt(currentPage), 8, category);
//3.保存数据、跳转页面
request.getSession().setAttribute("bookPage", bookPage);
request.getRequestDispatcher("/foreground/book/bookcategory.jsp").forward(request, response);
} catch (NumberFormatException e) {
e.printStackTrace();
} catch (SQLException e) {
e.printStackTrace();
}
}
protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
doGet(request, response);
}
}
package com.chinasoft.dao;
import java.sql.SQLException;
import java.util.List;
import com.chinasoft.entity.PageBean;
import com.chinasoft.entity.Product;
public interface ProductDao {
//查找所有的书籍
public List<Product> findAllBooks() throws SQLException;
//根据书的id查找指定的书籍
public Product findBookById(String id) throws SQLException;
//查找某一分类下的书籍总数
public long count(String category) throws SQLException;
//分页查询,查找当前页下、每页显示指定size下、以及当前分类下的书籍
public List<Product> findBooks(int currentPage, int pageSize,String category) throws SQLException;
//根据指定书名搜索书籍
public Product searchBookByName(String name) throws SQLException;
//模糊检索,根据模糊条件查找数据库,返回list集合
public List<Product> findBooksByBlurName(String name) throws SQLException;
//模糊检索,根据模糊条件查找数据库,返回pageBean
public PageBean findPageBooksByBlurName(String name) throws SQLException;
//分页查询,返回pageBean,pegeBean封装了当前页的所有信息
public PageBean findPageBooks(int currentPage, int pageSize,String category) throws SQLException;
}
package com.chinasoft.dao.impl;
import java.sql.SQLException;
import java.util.List;
import org.apache.commons.dbutils.QueryRunner;
import org.apache.commons.dbutils.handlers.BeanHandler;
import org.apache.commons.dbutils.handlers.BeanListHandler;
import org.apache.commons.dbutils.handlers.ScalarHandler;
import com.chinasoft.dao.ProductDao;
import com.chinasoft.entity.PageBean;
import com.chinasoft.entity.Product;
import com.chinasoft.util.C3P0Util;
public class ImplProductDao implements ProductDao{
/**
* 查找所有的书籍
*/
@Override
public List<Product> findAllBooks() throws SQLException {
//1.创建QueryRunner对象
QueryRunner qr = new QueryRunner(C3P0Util.getDataSource());
List<Product> list = qr.query("select * from products", new BeanListHandler<>(Product.class));
return list;
}
/**
* 根据书的id查找指定的书籍
*/
@Override
public Product findBookById(String id) throws SQLException {
QueryRunner qr = new QueryRunner(C3P0Util.getDataSource());
String sql = "select * from products where id=?";
Product product = qr.query(sql,new BeanHandler<Product>(Product.class),id);
return product;
}
/**
* 查找某一分类下的书籍总数
*/
@Override
public long count(String category) throws SQLException {
QueryRunner qr = new QueryRunner(C3P0Util.getDataSource());
String sql = null;
long count = 0;
if ("全部商品目录".equals(category)) {
sql = "select COUNT(*) from products";
count = qr.query(sql, new ScalarHandler<>());
}
else{
sql = "select COUNT(*) from products where category=?";
count = qr.query(sql, new ScalarHandler<>(),category);
}
return count;
}
/**
*
* 分页查询,查找当前页下、每页显示指定size下、以及当前分类下的所有书籍
*/
@Override
public List<Product> findBooks(int currentPage, int pageSize, String category) throws SQLException {
QueryRunner qr = new QueryRunner(C3P0Util.getDataSource());
String sql = null;
List<Product> products = null;
if ("全部商品目录".equals(category)) {
sql = "select * from products limit ?,?";
if (currentPage>=1) {
products = qr.query(sql, new BeanListHandler<>(Product.class),(currentPage-1)*pageSize,pageSize);
}
}
else{
sql = "select * from products where category=? limit ?,?";
if (currentPage>=1) {
products = qr.query(sql, new BeanListHandler<>(Product.class), category,(currentPage-1)*pageSize,pageSize);
}
}
return products;
}
/**
* 根据指定书名搜索书籍
*/
@Override
public Product searchBookByName(String name) throws SQLException {
QueryRunner qr = new QueryRunner(C3P0Util.getDataSource());
String sql = "select * from products where name=?";
Product product = qr.query(sql,new BeanHandler<Product>(Product.class),name);
return product;
}
/**
* 模糊检索,根据模糊条件查找数据库,返回list
*/
@Override
public List<Product> findBooksByBlurName(String name) throws SQLException {
//1.创建QueryRunner对象
QueryRunner qr = new QueryRunner(C3P0Util.getDataSource());
List<Product> list = qr.query("select * from products where name like ?", new BeanListHandler<>(Product.class),"%"+name+"%");
return list;
}
/**
* 模糊检索,根据模糊条件查找数据库,返回pagebean
*/
@SuppressWarnings("unused")
@Override
public PageBean findPageBooksByBlurName(String name) throws SQLException {
// 1.获取符合条件的书的集合
List<Product> list = findBooksByBlurName(name);
// 2.获取搜索到的所有书籍的个数
int totalcount = list.size();
// 3.设置当前页和最大页
int currentPage = 1;
int totalPage = 1;
if (totalcount == 0) {
currentPage = 0;
totalPage = 0;
}
// 4.创建PageBean对象
PageBean pageBean = new PageBean();
pageBean.setCurrentPage(currentPage);
pageBean.setTotalCount(totalcount);
pageBean.setTotalPage(totalcount);
pageBean.setCurrentCount(totalcount);
pageBean.setIsblur("yes");
if (list!=null) {
pageBean.setPs(list);
}
pageBean.setCategory(name);
return pageBean;
}
/**
* 分页查询,返回pageBean,pegeBean封装了当前页的所有信息
*/
@Override
public PageBean findPageBooks(int currentPage, int pageSize, String category) throws SQLException {
// 1.获取当前类别下,一页显示pageSize条,当前页所对应的所有书籍
ImplProductDao impl = new ImplProductDao();
List<Product> products = impl.findBooks(currentPage, pageSize, category);
// 2.获取当前类别下所有书籍的个数
long totalcount = impl.count(category);
//如果当前分类下 的图书个数为0,则currentPage为0
if (totalcount == 0) {
currentPage = 0;
}
// 3.计算要显示的总页数
int totalpage = (int) Math.ceil(totalcount / (double) pageSize);
// 4.创建PageBean对象
PageBean pageBean = new PageBean();
pageBean.setCurrentPage(currentPage);
pageBean.setTotalCount(totalcount);
pageBean.setTotalPage(totalpage);
pageBean.setCurrentCount(pageSize);
pageBean.setPs(products);
pageBean.setCategory(category);
return pageBean;
}
}
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