基于java，jsp，mysql开发蛋糕商城

一、请简述你设计的商品列表功能。

1.该功能创建了几张表，每个表的功能是什么，并介绍下主要字段和作用？

recommend表对应商品自动滑动的，表里包含自身的id和蛋糕goods的id，蛋糕所属类别的id；

type表对应蛋糕所属类别的id和名称；

goods表对应所有商品的内容，包含商品id，名称，商品图片，商品价格，商品介绍，商品库存，蛋糕所属类别id；

2.简要说明实现该功能。比如：创建了几个类，并介绍功能、算法逻辑、实现代码。

算法实现：

首先登录蛋糕商城首页是通过index.jsp展示的，其中的目录是通过引入header.jsp，底部联系网址是通过引入footer.jsp；页面的蛋糕内容是通过IndexServlet.class类中doGet方法来获取数据库内容（其中IndexServlet类是用来填写数据，GoodsService类是实现数据库每一条语句对应一个方法，相当于mybatis中的接口，GoodsDao类是实现GoodsService中的方法），然后填充到页面中，再通过index.jsp进行展示实现的；

关键代码：

List<Map<String,Object>> ScrollGood=gService.getScrollGood();

request.setAttribute("scroll",ScrollGood);
List<Map<String,Object>>newList=gService.getGoodsList(3);
request.setAttribute("newList",newList);
List<Map<String,Object>>hotList=gService.getGoodsList(2);

request.setAttribute("hotList",hotList);
//response.sendRedirect("index.jsp");
request.getRequestDispatcher("index.jsp").forward(request,response);

Goods类实现goods实例化；

public class Goods {

   private int id;
   private String name;
   private String cover;
   private String image1;
   private String image2;
   private float price;
   private String intro;
   private int stock;
   private Type type;
  
   private boolean isScroll;
   private boolean isHot;
   private boolean isNew;
  
  
   public boolean getIsScroll() {
      return isScroll;
   }
   public void setScroll(boolean isScroll) {
      this.isScroll = isScroll;
   }
   public boolean getIsHot() {
      return isHot;
   }
   public void setHot(boolean isHot) {
      this.isHot = isHot;
   }
   public boolean getIsNew() {
      return isNew;
   }
   public void setNew(boolean isNew) {
      this.isNew = isNew;
   }
   public void setTypeid(int typeid) {
      if(type==null) {
         type = new Type();
      }
      type.setId(typeid);
   }
   public void setTypename(String typename) {
      if(type==null) {
         type = new Type();
      }
      type.setName(typename);
   }
   @Override
   public String toString() {
      return "Goods [id=" + id + ", name=" + name + ", cover=" + cover + ", image1=" + image1 + ", image2=" + image2
            + ", price=" + price + ", intro=" + intro + ", stock=" + stock + ", type=" + type + "]";
   }
   public int getId() {
      return id;
   }
   public void setId(int id) {
      this.id = id;
   }
   public String getName() {
      return name;
   }
   public void setName(String name) {
      this.name = name;
   }
   public String getCover() {
      return cover;
   }
   public void setCover(String cover) {
      this.cover = cover;
   }
   public String getImage1() {
      return image1;
   }
   public void setImage1(String image1) {
      this.image1 = image1;
   }
   public String getImage2() {
      return image2;
   }
   public void setImage2(String image2) {
      this.image2 = image2;
   }
   public float getPrice() {
      return price;
   }
   public void setPrice(float price) {
      this.price = price;
   }
   public String getIntro() {
      return intro;
   }
   public void setIntro(String intro) {
      this.intro = intro;
   }
   public int getStock() {
      return stock;
   }
   public void setStock(int stock) {
      this.stock = stock;
   }
   public Type getType() {
      return type;
   }
   public void setType(Type type) {
      this.type = type;
   }
   public Goods() {
      super();
   }
   public Goods(int id, String name, String cover, String image1, String image2, float price, String intro, int stock,
         Type type) {
      super();
      this.id = id;
      this.name = name;
      this.cover = cover;
      this.image1 = image1;
      this.image2 = image2;
      this.price = price;
      this.intro = intro;
      this.stock = stock;
      this.type = type;
   }
  
  
}

Recommend类实现recommend表实例化；

public class Recommend {

   private int id;
   private int type;//1条幅 2热销 3新品
   private Goods goods;

   public int getId() {
      return id;
   }
   public void setId(int id) {
      this.id = id;
   }
   public int getType() {
      return type;
   }
   public void setType(int type) {
      this.type = type;
   }
   public Goods getGoods() {
      return goods;
   }
   public void setGoods(Goods goods) {
      this.goods = goods;
   }
   public Recommend(int id, int type, Goods goods) {
      super();
      this.id = id;
      this.type = type;
      this.goods = goods;
   }
   public Recommend() {
      super();
   }
  
  
}

Type类实现type表的实例化；

import java.io.UnsupportedEncodingException;

import java.net.URLEncoder;

public class Type {
   private int id;
   private String name;
  
   private String encodeName;
  
   public String getEncodeName() {
      return encodeName;
   }
   public void setEncodeName(String encodeName) {
      this.encodeName = encodeName;
   }
   public int getId() {
      return id;
   }
   public void setId(int id) {
      this.id = id;
   }
   public String getName() {
      return name;
   }
   public void setName(String name) {
      this.name = name;
      try {
         this.encodeName = URLEncoder.encode(name, "utf-8");
      } catch (UnsupportedEncodingException e) {
         // TODO Auto-generated catch block
         e.printStackTrace();
      }
   }
   public Type(int id, String name) {
      super();
      this.id = id;
      this.name = name;
   }
   public Type() {
      super();
   }
   public Type(String name) {
      super();
      this.name = name;
   }
  
}

GoodsDao类实现对goods表的进行增删改查；

import model.Goods;

import model.Recommend;
import org.apache.commons.dbutils.*;
import org.apache.commons.dbutils.handlers.*;
import utils.DataSourceUtils;

import java.sql.SQLException;
import java.util.*;

public class GoodsDao {
    //select g.id,g.name,g.cover,g.price,t.name typename from recommend r,goods g,type t where type=2 and r.goods_id=g.id and g.type_id=t.id
    public List<Map<String,Object>> getGoodsList(int recommendType) throws SQLException {
        QueryRunner r = new QueryRunner(DataSourceUtils.getDataSource());
        String sql="select g.id,g.name,g.cover,g.price,t.name typename from recommend r,goods g,type t where type=? and r.goods_id=g.id and g.type_id=t.id";
        return r.query(sql, new MapListHandler(),recommendType);
    }

    public List<Map<String,Object>> getScrollGood()throws SQLException{
        QueryRunner r = new QueryRunner(DataSourceUtils.getDataSource());
//        String sql="select g.id,g.name,g.cover,g.price  from recommend r,goods g where type=1 and r.goods_id=g.id";
//        return r.query(sql, new MapHandler());
        String sql="select g.id,g.name,g.cover,g.price  from recommend r,goods g where r.goods_id=g.id";
        return r.query(sql, new MapListHandler());
    }
    public List<Goods> selectGoodsByTypeID(int typeID,int pageNumber,int pageSize) throws SQLException {
        if(typeID==0)
        {
            String sql="select * from goods limit ? , ?";
            QueryRunner r=new QueryRunner(DataSourceUtils.getDataSource());
            return  r.query(sql,new BeanListHandler<Goods>(Goods.class),(pageNumber-1)*pageSize,pageSize);
        }
        else
        {
            String sql="select * from goods where type_id=? limit ? , ?";
            QueryRunner r=new QueryRunner(DataSourceUtils.getDataSource());
            return  r.query(sql,new BeanListHandler<Goods>(Goods.class),typeID,(pageNumber-1)*pageSize,pageSize);
        }
    }
    public int getCountOfGoodsByTypeID(int typeID) throws SQLException {
        String sql="";
        QueryRunner r=new QueryRunner(DataSourceUtils.getDataSource());
        if(typeID==0)
        {
            sql="select count(*) from goods";
            return r.query(sql,new ScalarHandler<Long>()).intValue();
        }
        else
        {
            sql="select count(*) from goods where type_id=?";
            return r.query(sql,new ScalarHandler<Long>(),typeID).intValue();
        }
    }
    public List<Goods> selectGoodsbyRecommend(int type,int pageNumber,int pageSize) throws SQLException {
        QueryRunner r = new QueryRunner(DataSourceUtils.getDataSource());
        if(type==0) {
            //当不添加推荐类型限制的时候
            String sql = " select g.id,g.name,g.cover,g.image1,g.image2,g.intro,g.price,g.stock,t.name typename from goods g,type t where g.type_id=t.id order by g.id limit ?,?";
            return r.query(sql, new BeanListHandler<Goods>(Goods.class),(pageNumber-1)*pageSize,pageSize);

        }

        String sql = " select g.id,g.name,g.cover,g.image1,g.image2,g.intro,g.price,g.stock,t.name typename from goods g,recommend r,type t where g.id=r.goods_id and g.type_id=t.id and r.type=? order by g.id limit ?,?";
        return r.query(sql, new BeanListHandler<Goods>(Goods.class),type,(pageNumber-1)*pageSize,pageSize);
    }
    public int getRecommendCountOfGoodsByTypeID(int type) throws SQLException {
        if(type==0)return getCountOfGoodsByTypeID(0);
        QueryRunner r = new QueryRunner(DataSourceUtils.getDataSource());
        String sql = "select count(*) from recommend where type=?";
        return r.query(sql, new ScalarHandler<Long>(),type).intValue();
    }
    public Goods getGoodsById(int id) throws SQLException {
        QueryRunner r = new QueryRunner(DataSourceUtils.getDataSource());
        String sql = "select g.id,g.name,g.cover,g.image1,g.image2,g.price,g.intro,g.stock,t.id typeid,t.name typename from goods g,type t where g.id = ? and g.type_id=t.id";
        return r.query(sql, new BeanHandler<Goods>(Goods.class),id);
    }
    public int getSearchCount(String keyword) throws SQLException {
        QueryRunner r = new QueryRunner(DataSourceUtils.getDataSource());
        String sql = "select count(*) from goods where name like ?";
        return r.query(sql, new ScalarHandler<Long>(),"%"+keyword+"%").intValue();
    }
    public List<Goods> selectSearchGoods(String keyword, int pageNumber, int pageSize) throws SQLException{
        QueryRunner r = new QueryRunner(DataSourceUtils.getDataSource());
        String sql = "select * from goods where name like ? limit ?,?";
        return r.query(sql, new BeanListHandler<Goods>(Goods.class),"%"+keyword+"%",(pageNumber-1)*pageSize,pageSize);
    }
    public boolean isScroll(Goods g) throws SQLException {
        return isRecommend(g, 1);
    }
    public boolean isHot(Goods g) throws SQLException {
        return isRecommend(g, 2);
    }
    public boolean isNew(Goods g) throws SQLException {
        return isRecommend(g, 3);
    }
    private boolean isRecommend(Goods g,int type) throws SQLException {
        QueryRunner r = new QueryRunner(DataSourceUtils.getDataSource());
        String sql = "select * from recommend where type=? and goods_id=?";
        Recommend recommend = r.query(sql, new BeanHandler<Recommend>(Recommend.class),type,g.getId());
        if(recommend==null) {
            return false;
        }else {
            return true;
        }
    }
    public void addRecommend(int id,int type) throws SQLException {
        QueryRunner r = new QueryRunner(DataSourceUtils.getDataSource());
        String sql = "insert into recommend(type,goods_id) values(?,?)";
        r.update(sql,type,id);
    }
    public void removeRecommend(int id,int type) throws SQLException {
        QueryRunner r = new QueryRunner(DataSourceUtils.getDataSource());
        String sql = "delete from recommend where type=? and goods_id=?";
        r.update(sql,type,id);
    }
    public void insert(Goods g) throws SQLException {
        QueryRunner r = new QueryRunner(DataSourceUtils.getDataSource());
        String sql = "insert into goods(name,cover,image1,image2,price,intro,stock,type_id) values(?,?,?,?,?,?,?,?)";
        r.update(sql,g.getName(),g.getCover(),g.getImage1(),g.getImage2(),g.getPrice(),g.getIntro(),g.getStock(),g.getType().getId());
    }
    public void update(Goods g) throws SQLException {
        QueryRunner r = new QueryRunner(DataSourceUtils.getDataSource());
        String sql = "update goods set name=?,cover=?,image1=?,image2=?,price=?,intro=?,stock=?,type_id=? where id=?";
        r.update(sql,g.getName(),g.getCover(),g.getImage1(),g.getImage2(),g.getPrice(),g.getIntro(),g.getStock(),g.getType().getId(),g.getId());
    }
    public void delete(int id) throws SQLException {
        QueryRunner r = new QueryRunner(DataSourceUtils.getDataSource());
        String sql = "delete from goods where id = ?";
        r.update(sql,id);
    }
}

TypeDao类实现对type表的增上改查来辅助GoodsDao更好的对goods类别的分类；

import model.Type;

import org.apache.commons.dbutils.QueryRunner;
import org.apache.commons.dbutils.handlers.BeanHandler;
import org.apache.commons.dbutils.handlers.BeanListHandler;
import utils.DataSourceUtils;

import java.sql.SQLException;
import java.util.List;

public class TypeDao
{
    public List<Type> GetAllType() throws SQLException {
        QueryRunner r=new QueryRunner(DataSourceUtils.getDataSource());
        String sql="select * from type";
        return r.query(sql,new BeanListHandler<Type>(Type.class));
    }
    public Type selectTypeNameByID(int typeid) throws SQLException {
        QueryRunner r=new QueryRunner(DataSourceUtils.getDataSource());
        String sql="select * from type where id=?";
        return r.query(sql,new BeanHandler<Type>(Type.class),typeid);
    }
    public Type select(int id) throws SQLException {
        QueryRunner r = new QueryRunner(DataSourceUtils.getDataSource());
        String sql = "select * from type where id = ?";
        return r.query(sql, new BeanHandler<Type>(Type.class),id);
    }
    public void insert(Type t) throws SQLException {
        QueryRunner r = new QueryRunner(DataSourceUtils.getDataSource());
        String sql = "insert into type(name) values(?)";
        r.update(sql,t.getName());
    }
    public void update(Type t) throws SQLException {
        QueryRunner r = new QueryRunner(DataSourceUtils.getDataSource());
        String sql = "update type set name=? where id = ?";
        r.update(sql,t.getName(),t.getId());
    }
    public void delete(int id) throws SQLException {
        QueryRunner r = new QueryRunner(DataSourceUtils.getDataSource());
        String sql = "delete from type where id = ?";
        r.update(sql,id);
    }
}

Index.jsp蛋糕商城的首页，展示蛋糕种类；

<%@ page contentType="text/html;charset=UTF-8"

language="java" %>
<%@ taglib uri="http://java.sun.com/jsp/jstl/core" prefix="c" %>
<%
    String path=request.getContextPath();
    String basePath=request.getScheme()+"://"+request.getServerName()+":8080"+path+"/";
%>
<!DOCTYPE html>
<html>
<head>
    <title>商品列表</title>
    <base href="<%=basePath%>">
    <meta name="viewport" content="width=device-width, initial-scale=1">
    <meta http-equiv="Content-Type" content="text/html; charset=utf-8">
    <link type="text/css" rel="stylesheet" href="css/bootstrap.css">
    <link type="text/css" rel="stylesheet" href="css/style.css">
    <script type="text/javascript" src="js/jquery.min.js"></script>
    <script type="text/javascript" src="js/bootstrap.min.js"></script>
    <script type="text/javascript" src="layer/layer.js"></script>
    <script type="text/javascript" src="js/cart.js"></script>

</head>
<body>
<!--header-->
<jsp:include page="/header.jsp">
    <jsp:param name="flag" value="1"></jsp:param>
</jsp:include>
<!--banner-->

<div class="banner">
    <div class="container">
        <div id="carousel-example-generic" class="carousel slide" data-ride="carousel">
            <!-- Indicators -->
            <ol class="carousel-indicators" id="olnum">
                <c:forEach items="${scroll}" var="g" varStatus="status">
                    <c:choose>
                        <c:when test="${status.first}">
                            <li data-target="#carousel-example-generic" data-slide-to="0" class="active"></li>
                        </c:when>
                        <c:otherwise>
                            <li data-target="#carousel-example-generic" data-slide-to="${status.index}"></li>
                        </c:otherwise>
                    </c:choose>
                </c:forEach>
            </ol>

            <!-- Wrapper for slides -->
            <div class="carousel-inner" role="listbox" id="lunbotu" style="width: 1242px; height: 432px;">
                <c:forEach items="${scroll}" var="g" varStatus="status">
                    <c:choose>
                        <c:when test="${status.first}">
                            <div class="item active">
                                <h2 class="hdng"><a href="goods_detail?id=${g.id}">${g.name}</a><span></span></h2>
                                <p>今日精选推荐</p>
                                <a class="banner_a" href="javascript:;" onclick="buy(${g.id})">立刻购买</a>
                                <div class="banner-text">
                                    <a href="goods_detail?id=${g.id}">
                                        <img src="${g.cover}" alt="${g.name}" width="350" height="350">
                                    </a>
                                </div>
                            </div>
                        </c:when>
                        <c:otherwise>
                            <div class="item">
                                <h2 class="hdng"><a href="goods_detail?id=${g.id}">${g.name}</a><span></span></h2>
                                <p>今日精选推荐</p>
                                <a class="banner_a" href="javascript:;" onclick="buy(${g.id})">立刻购买</a>
                                <div class="banner-text">
                                    <a href="goods_detail?id=${g.id}">
                                        <img src="${g.cover}" alt="${g.name}" width="350" height="350">
                                    </a>
                                </div>
                            </div>
                        </c:otherwise>
                    </c:choose>
                </c:forEach>
            </div>

            <!-- Controls -->
            <%--<a class="left carousel-control" href="#carousel-example-generic" role="button" data-slide="prev">
                <span class="glyphicon glyphicon-chevron-left" aria-hidden="true"></span>
                <span class="sr-only">Previous</span>
            </a>
            <a class="right carousel-control" href="#carousel-example-generic" role="button" data-slide="next">
                <span class="glyphicon glyphicon-chevron-right" aria-hidden="true"></span>
                <span class="sr-only">Next</span>
            </a>--%>
        </div>
    </div>
</div>

<!--//banner-->

<div class="subscribe2"></div>

<!--gallery-->
<div class="gallery">
    <div class="container">
        <div class="alert alert-danger">热销推荐</div>
        <div class="gallery-grids">
            <c:forEach items="${hotList}" var="g">
                <div class="col-md-4 gallery-grid glry-two">
                    <a href="goods_detail?id=${g.id}">
                        <img src="${g.cover}" class="img-responsive" alt="${g.name}" width="350" height="350"/>
                    </a>
                    <div class="gallery-info galrr-info-two">
                        <p>
                            <span class="glyphicon glyphicon-eye-open" aria-hidden="true"></span>
                            <a href="goods_detail?id=${g.id}">查看详情</a>
                        </p>
                        <a class="shop" href="javascript:;" onclick="buy(${g.id})">立刻购买</a>
                        <div class="clearfix"></div>
                    </div>
                    <div class="galy-info">
                        <p>${g.typeName} > ${g.name}</p>
                        <div class="galry">
                            <div class="prices">
                                <h5 class="item_price">¥ ${g.price}</h5>
                            </div>
                            <div class="clearfix"></div>
                        </div>
                    </div>
                </div>
            </c:forEach>


        </div>

        <div class="clearfix"></div>
        <div class="alert alert-info">新品推荐</div>
        <div class="gallery-grids">
            <c:forEach items="${newList}" var="g">
                <div class="col-md-3 gallery-grid ">
                    <a href="goods_detail?id=${g.id}">
                        <img src="${g.cover}" class="img-responsive" alt="${g.name}"/>
                    </a>
                    <div class="gallery-info">
                        <p>
                            <span class="glyphicon glyphicon-eye-open" aria-hidden="true"></span>
                            <a href="goods_detail?id=${g.id}">查看详情</a>
                        </p>
                        <a class="shop" href="javascript:;" onclick="buy(${g.id})">立刻购买</a>
                        <div class="clearfix"></div>
                    </div>
                    <div class="galy-info">
                        <p>${g.typeName} > ${g.name}</p>
                        <div class="galry">
                            <div class="prices">
                                <h5 class="item_price">¥ ${g.price}</h5>
                            </div>
                            <div class="clearfix"></div>
                        </div>
                    </div>
                </div>
            </c:forEach>


        </div>
    </div>
</div>
<!--//gallery-->

<!--subscribe-->
<div class="subscribe"></div>
<!--//subscribe-->


<!--footer-->
<jsp:include page="/footer.jsp"></jsp:include>
</body>
</html>

footer.jsp商城页面最下面内容显示

<%@ page contentType="text/html;charset=UTF-8"

language="java" %>
<!--footer-->
<div class="footer">
    <div class="container">
        <div class="text-center">
            <p>vili www.vilicode.com © All rights Reseverd</p>
        </div>
    </div>
</div>

header.jsp实现蛋糕商城首页上面目录显示；

<%@ page contentType="text/html;charset=UTF-8"

language="java" %>
<%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %>
<%--
  Created by IntelliJ IDEA.
  User: 19767
  Date: 2018/11/23
  Time: 15:49
  To change this template use File | Settings | File Templates.
--%>

<!--header-->
<div class="header">
    <div class="container">
        <nav class="navbar navbar-default" role="navigation">
            <div class="navbar-header">
                <button type="button" class="navbar-toggle" data-toggle="collapse" data-target="#bs-example-navbar-collapse-1">
                    <span class="sr-only">Toggle navigation</span>
                    <span class="icon-bar"></span>
                    <span class="icon-bar"></span>
                    <span class="icon-bar"></span>
                </button>
                <h1 class="navbar-brand"><a href="/index"></a></h1>
            </div>
            <!--navbar-header-->
            <div class="collapse navbar-collapse" id="bs-example-navbar-collapse-1">
                <ul class="nav navbar-nav">
                    <li><a href="/index" <c:if test="${param.flag==1}">class="active"</c:if>>首页</a></li>
                    <li class="dropdown">
                        <a href="#" class="dropdown-toggle <c:if test="${param.flag==2}">active</c:if>" data-toggle="dropdown">商品分类<b class="caret"></b></a>
                        <ul class="dropdown-menu multi-column columns-2">
                            <li>
                                <div class="row">
                                    <div class="col-sm-12">
                                        <h4>商品分类</h4>
                                        <ul class="multi-column-dropdown">

                                            <li><a class="list" href="/goods_list">全部系列</a></li>

                                            <c:forEach items="${typeList}" var="t">
                                                <li><a class="list" href="/goods_list?typeid=${t.id}">${t.name}</a></li>
                                            </c:forEach>


                                        </ul>
                                    </div>
                                </div>
                            </li>
                        </ul>
                    </li>
                    <li><a href="/goodsrecommend_list?type=2" <c:if test="${param.flag==3 && t==2}">class="active"</c:if>>热销</a></li>
                    <li><a href="/goodsrecommend_list?type=3" <c:if test="${param.flag==3 && t==3}">class="active"</c:if>>新品</a></li>

                    <c:choose><c:when test="${empty user }">
                        <li><a href="/user_register.jsp" <c:if test="${param.flag==10 }">class="active"</c:if>>注册</a></li>
                        <li><a href="/user_login.jsp" <c:if test="${param.flag==9 }">class="active"</c:if>>登录</a></li>
                    </c:when><c:otherwise>
                        <li><a href="/order_list" <c:if test="${param.flag==5 }">class="active"</c:if>>我的订单</a></li>
                        <li><a href="/user_center.jsp" <c:if test="${param.flag==4 }">class="active"</c:if>>个人中心</a></li>
                        <li><a href="/user_logout" >退出</a></li>
                    </c:otherwise>
                    </c:choose>

                    <c:if test="${!empty user && user.isadmin }">
                        <li><a href="/admin/index.jsp" target="_blank">后台管理</a></li>
                    </c:if>
                </ul>
                <!--/.navbar-collapse-->
            </div>
            <!--//navbar-header-->
        </nav>
        <div class="header-info">
            <div class="header-right search-box">
                <a href="javascript:;"><span class="glyphicon glyphicon-search" aria-hidden="true"></span></a>
                <div class="search">
                    <form class="navbar-form" action="/goods_search">
                        <input type="text" class="form-control" name="keyword">
                        <button type="submit" class="btn btn-default <c:if test="${param.flag==7 }">active</c:if>" aria-label="Left Align">搜索</button>
                    </form>
                </div>
            </div>

            <div class="header-right cart">
                <a href="goods_cart.jsp">
                    <span class="glyphicon glyphicon-shopping-cart <c:if test="${param.flag==8 }">active</c:if>" aria-hidden="true"><span class="card_num"><c:choose><c:when test="${empty order}">0</c:when><c:otherwise>${order.amount}</c:otherwise></c:choose></span></span>
                </a>
            </div>
            <div class="clearfix"> </div>
        </div>
        <div class="clearfix"> </div>
    </div>
</div>
<!--//header-->

3.该商品列表运行截图。

1.普通用户

首页

 文章来源地址https://www.toymoban.com/news/detail-767185.html

用户登录

购物车

支付

2.管理员登录

首页

订单管理

客户管理

商品管理

类型管理

二、请简述你设计的订单功能。

1.该功能创建了几张表，每个表的功能是什么，并介绍下主要字段和作用？

User表实现用户和管理员登录的账号；username用户登录名，password登录密码，name用户属性，phone电话号码，adress用户收货地址，isadmin是否为管理员；

Order表管理员对用户订单的管理，total表示订单总价格，amount一个订单蛋糕数量，status表示用户订单是否发货，paytype用户支付类型，name收货人名字，phone收货人电话，adress收货地址，datetime购买时间，user_id购买人的id；

Orderitem表实现用户订单和管理员订单内容管理；prince订单中蛋糕的价格，amount蛋糕购买的数量，goods_id商品的id，order_id订单的id。

2.简要说明实现该功能。比如：创建了几个类，并介绍功能、算法逻辑、实现代码。

算法实现

用户订单

Order类对订单属性的实例化；OrderListServlet类首先获取页面中用户的id，如果没有出现登录界面；然后通过OrderService类中的方法来获取OrderDao中的sql语句查询数据库的信息来填写页面的内容，然后跳转到订单界面。

管理员订单

Page类管理订单页面；AdminOrderListServlet类首先判断用户的订单是否发货，然后通过OrderService类中的方法来获取OrderDao中的sql语句查询数据库的信息来填写页面的内容，然后跳转到订单管理界面。

3.该订单运行截图。

用户订单

管理员订单

代码

Page.class

import java.util.List;

public class Page {
    private int pageNumber;
    private int pageSize;
    private int totalCount;
    private int totalPage;

    private List<Object> list;

    public void SetPageSizeAndTotalCount(int pageSize,int totalCount)
    {
        this.pageSize=pageSize;
        this.totalCount=totalCount;
        totalPage= (int)Math.ceil((double)totalCount/pageSize);
    }
    public int getPageNumber() {
        return pageNumber;
    }

    public void setPageNumber(int pageNumber) {
        this.pageNumber = pageNumber;
    }

    public int getPageSize() {
        return pageSize;
    }

    public void setPageSize(int pageSize) {
        this.pageSize = pageSize;
    }

    public int getTotalCount() {
        return totalCount;
    }

    public void setTotalCount(int totalCount) {
        this.totalCount = totalCount;
    }

    public int getTotalPage() {
        return totalPage;
    }

    public void setTotalPage(int totalPage) {
        this.totalPage = totalPage;
    }

    public List<Object> getList() {
        return list;
    }

    public void setList(List<Object> list) {
        this.list = list;
    }
}

AdminOrderListServlet.class

import model.Page;

import service.OrderService;

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 java.io.IOException;

@WebServlet(name = "admin_order_list",urlPatterns = "/admin/order_list")
public class AdminOrderListServlet extends HttpServlet {
    private OrderService oService = new OrderService();
    /**
     * @see HttpServlet#doGet(HttpServletRequest request, HttpServletResponse response)
     */
    protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
        int status = 0;
        if(request.getParameter("status") != null) {
            status=Integer.parseInt(request.getParameter("status") ) ;
        }
        request.setAttribute("status", status);
        int pageNumber = 1;
        if(request.getParameter("pageNumber") != null) {
            try {
                pageNumber=Integer.parseInt(request.getParameter("pageNumber") ) ;
            }
            catch (Exception e)
            {

            }
        }
        if(pageNumber<=0)
            pageNumber=1;
        Page p = oService.getOrderPage(status,pageNumber);
        if(p.getTotalPage()==0)
        {
            p.setTotalPage(1);
            p.setPageNumber(1);
        }
        else {
            if(pageNumber>=p.getTotalPage()+1)
            {
                p = oService.getOrderPage(status,pageNumber);
            }
        }

        request.setAttribute("p", p);
        request.getRequestDispatcher("/admin/order_list.jsp").forward(request, response);
    }
}

OrderService.class

import dao.*;

import model.*;
import utils.*;

import java.sql.*;
import java.util.List;

public class OrderService {
    private OrderDao oDao = new OrderDao();
    public void addOrder(Order order) {
        Connection con = null;
        try {
            con = DataSourceUtils.getConnection();
            con.setAutoCommit(false);

            oDao.insertOrder(con, order);
            int id = oDao.getLastInsertId(con);
            order.setId(id);
            for(OrderItem item : order.getItemMap().values()) {
                oDao.insertOrderItem(con, item);
            }

            con.commit();
        } catch (SQLException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
            if(con!=null)
                try {
                    con.rollback();
                } catch (SQLException e1) {
                    // TODO Auto-generated catch block
                    e1.printStackTrace();
                }
        }
    }
    public List<Order> selectAll(int userid){
        List<Order> list=null;
        try {
            list = oDao.selectAll(userid);
            for(Order o :list) {
                List<OrderItem> l = oDao.selectAllItem(o.getId());
                o.setItemList(l);
            }
        } catch (SQLException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        }
        return list;
    }
    public Page getOrderPage(int status,int pageNumber) {
        Page p = new Page();
        p.setPageNumber(pageNumber);
        int pageSize = 10;
        int totalCount = 0;
        try {
            totalCount = oDao.getOrderCount(status);
        } catch (SQLException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        }
        p.SetPageSizeAndTotalCount(pageSize, totalCount);
        List list=null;
        try {
            list = oDao.selectOrderList(status, pageNumber, pageSize);
            for(Order o :(List<Order>)list) {
                List<OrderItem> l = oDao.selectAllItem(o.getId());
                o.setItemList(l);
            }
        } catch (SQLException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        }
        p.setList(list);
        return p;
    }
    public void updateStatus(int id,int status) {
        try {
            oDao.updateStatus(id, status);
        } catch (SQLException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        }
    }
    public void delete(int id) {
        Connection con = null;
        try {
            con = DataSourceUtils.getDataSource().getConnection();
            con.setAutoCommit(false);

            oDao.deleteOrderItem(con, id);
            oDao.deleteOrder(con, id);
            con.commit();
        } catch (SQLException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
            if(con!=null)
                try {
                    con.rollback();
                } catch (SQLException e1) {
                    // TODO Auto-generated catch block
                    e1.printStackTrace();
                }
        }


    }
}

OrderDao.class

import model.*;

import org.apache.commons.dbutils.*;
import utils.*;
import java.math.*;
import java.sql.*;
import java.util.*;
import org.apache.commons.dbutils.handlers.*;

public class OrderDao {
    public void insertOrder(Connection con, Order order) throws SQLException {
        QueryRunner r = new QueryRunner();
        String sql = "insert into `order`(total,amount,status,paytype,name,phone,address,datetime,user_id) values(?,?,?,?,?,?,?,?,?)";
        r.update(con,sql,
                order.getTotal(),order.getAmount(),order.getStatus(),
                order.getPaytype(),order.getName(),order.getPhone(),
                order.getAddress(),order.getDatetime(),order.getUser().getId() );
    }
    public int getLastInsertId(Connection con) throws SQLException {
        QueryRunner r = new QueryRunner();
        String sql = "select last_insert_id()";
        BigInteger bi = r.query(con, sql,new ScalarHandler<BigInteger>());
        return Integer.parseInt(bi.toString());
    }
    public void insertOrderItem(Connection con, OrderItem item) throws SQLException {
        QueryRunner r = new QueryRunner();
        String sql ="insert into orderitem(price,amount,goods_id,order_id) values(?,?,?,?)";
        r.update(con,sql,item.getPrice(),item.getAmount(),item.getGoods().getId(),item.getOrder().getId());
    }
    public List<Order> selectAll(int userid) throws SQLException {
        QueryRunner r = new QueryRunner(DataSourceUtils.getDataSource());
        String sql = "select * from `order` where user_id=? order by datetime desc";
        return r.query(sql, new BeanListHandler<Order>(Order.class),userid);
    }
    public List<OrderItem> selectAllItem(int orderid) throws SQLException{
        QueryRunner r = new QueryRunner(DataSourceUtils.getDataSource());
        String sql = "select i.id,i.price,i.amount,g.name from orderitem i,goods g where order_id=? and i.goods_id=g.id";
        return r.query(sql, new BeanListHandler<OrderItem>(OrderItem.class),orderid);
    }
    public int getOrderCount(int status) throws SQLException {
        QueryRunner r = new QueryRunner(DataSourceUtils.getDataSource());
        String sql = "";
        if(status==0) {
            sql = "select count(*) from `order`";
            return r.query(sql, new ScalarHandler<Long>()).intValue();
        }else {
            sql = "select count(*) from `order` where status=?";
            return r.query(sql, new ScalarHandler<Long>(),status).intValue();
        }
    }
    public List<Order> selectOrderList(int status, int pageNumber, int pageSize) throws SQLException {
        QueryRunner r = new QueryRunner(DataSourceUtils.getDataSource());
        if(status==0) {
            String sql = "select o.id,o.total,o.amount,o.status,o.paytype,o.name,o.phone,o.address,o.datetime,u.username from `order` o,user u where o.user_id=u.id order by o.datetime desc limit ?,?";
            return r.query(sql, new BeanListHandler<Order>(Order.class), (pageNumber-1)*pageSize,pageSize );
        }else {
            String sql = "select o.id,o.total,o.amount,o.status,o.paytype,o.name,o.phone,o.address,o.datetime,u.username from `order` o,user u where o.user_id=u.id and o.status=? order by o.datetime desc limit ?,?";
            return r.query(sql, new BeanListHandler<Order>(Order.class),status, (pageNumber-1)*pageSize,pageSize );
        }
    }
    public void updateStatus(int id,int status) throws SQLException {
        QueryRunner r = new QueryRunner(DataSourceUtils.getDataSource());
        String sql ="update `order` set status=? where id = ?";
        r.update(sql,status,id);
    }
    public void deleteOrder(Connection con ,int id) throws SQLException {
        QueryRunner r = new QueryRunner();
        String sql ="delete from `order` where id = ?";
        r.update(con,sql,id);
    }
    public void deleteOrderItem(Connection con ,int id) throws SQLException {
        QueryRunner r = new QueryRunner();
        String sql ="delete from orderitem where order_id=?";
        r.update(con,sql,id);
    }
}

order_list.jsp

<%@ page contentType="text/html;charset=UTF-8"

language="java" %>
<%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %>


<!DOCTYPE html>
<html>
<head>
   <title>我的订单</title>
   <meta name="viewport" content="width=device-width, initial-scale=1">
   <meta http-equiv="Content-Type" content="text/html; charset=utf-8">
   <link type="text/css" rel="stylesheet" href="css/bootstrap.css">
   <link type="text/css" rel="stylesheet" href="css/style.css">
   <script type="text/javascript" src="js/jquery.min.js"></script>
   <script type="text/javascript" src="js/bootstrap.min.js"></script>
   <script type="text/javascript" src="layer/layer.js"></script>
   <script type="text/javascript" src="js/cart.js"></script>
</head>
<body>
  
  





   <!--header-->
   <jsp:include page="header.jsp">
      <jsp:param name="flag" value="5"></jsp:param>
   </jsp:include>
   <!--//header-->

  
   <!--cart-items-->
   <div class="cart-items">
      <div class="container">
     
     
     
         <h2>我的订单</h2>
        
            <table class="table table-bordered table-hover">

            <tr>
               <th width="10%">ID</th>
               <th width="10%">总价</th>
               <th width="20%">商品详情</th>
               <th width="30%">收货信息</th>
               <th width="10%">订单状态</th>
               <th width="10%">支付方式</th>
               <th width="10%">下单时间</th>
            </tr>

               <c:forEach items="${orderList }" var="order">

                  <tr>
                     <td><p>${order.id }</p></td>
                     <td><p>${order.total }</p></td>
                     <td>
                        <c:forEach items="${order.itemList }" var="item">
                           <p>${item.goodsName }(${item.price }) x ${item.amount }</p>
                        </c:forEach>

                     </td>
                     <td>
                        <p>${order.name }</p>
                        <p>${order.phone }</p>
                        <p>${order.address }</p>
                     </td>
                     <td>
                        <p>
                           <c:if test="${order.status==2 }"><span style="color:red;">已付款</span></c:if>
                           <c:if test="${order.status==3 }"><span style="color:green;">已发货</span></c:if>
                           <c:if test="${order.status==4 }"><span style="color:black;">已完成</span></c:if>


                        </p>
                     </td>
                     <td>
                        <p>

                           <c:if test="${order.paytype==1 }">微信</c:if>
                           <c:if test="${order.paytype==2 }">支付宝</c:if>
                           <c:if test="${order.paytype==3 }">货到付款</c:if>

                        </p>
                     </td>
                     <td><p>${order.datetime }</p></td>
                  </tr>

               </c:forEach>



            </table>
        
        
        
        
      </div>
   </div>
   <!--//cart-items-->   
  
  




   <!--footer-->
   <jsp:include page="footer.jsp"></jsp:include>
   <!--//footer-->


</body>
</html>

admin/order_list

<%@ page contentType="text/html;charset=UTF-8"

language="java" %>
<%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %>


<!DOCTYPE html>
<html>
<head>
<title>订单列表</title>
<link rel="stylesheet" href="css/bootstrap.css"/>
</head>
<body>
<div class="container-fluid">

  




   <jsp:include page="header.jsp"></jsp:include>

   <br>

   <ul role="tablist" class="nav nav-tabs">
      <li <c:if test="${status==0 }">class="active"</c:if> role="presentation"><a href="/admin/order_list">全部订单</a></li>
      <li <c:if test="${status==1 }">class="active"</c:if> role="presentation"><a href="/admin/order_list?status=1">未付款</a></li>
      <li <c:if test="${status==2 }">class="active"</c:if> role="presentation"><a href="/admin/order_list?status=2">已付款</a></li>
      <li <c:if test="${status==3 }">class="active"</c:if> role="presentation"><a href="/admin/order_list?status=3">配送中</a></li>
      <li <c:if test="${status==4 }">class="active"</c:if> role="presentation"><a href="/admin/order_list?status=4">已完成</a></li>
   </ul>

   <br>
  
   <table class="table table-bordered table-hover">

   <tr>
      <th width="5%">ID</th>
      <th width="5%">总价</th>
      <th width="15%">商品详情</th>
      <th width="20%">收货信息</th>
      <th width="10%">订单状态</th>
      <th width="10%">支付方式</th>
      <th width="10%">下单用户</th>
      <th width="10%">下单时间</th>
      <th width="10%">操作</th>
   </tr>

      <c:forEach items="${p.list }" var="order">
         <tr>
            <td><p>${order.id }</p></td>
            <td><p>${order.total }</p></td>
            <td>
               <c:forEach items="${order.itemList }" var="item">
                  <p>${item.goodsName }(${item.price }) x ${item.amount}</p>
               </c:forEach>
            </td>
            <td>
               <p>${order.name }</p>
               <p>${order.phone }</p>
               <p>${order.address }</p>
            </td>
            <td>
               <p>
                  <c:if test="${order.status==2 }"><span style="color:red;">已付款</span></c:if>
                  <c:if test="${order.status==3 }"><span style="color:green;">已发货</span></c:if>
                  <c:if test="${order.status==4 }"><span style="color:black;">已完成</span></c:if>

               </p>
            </td>
            <td>
               <p>

                  <c:if test="${order.paytype==1 }">微信</c:if>
                  <c:if test="${order.paytype==2 }">支付宝</c:if>
                  <c:if test="${order.paytype==3 }">货到付款</c:if>

               </p>
            </td>
            <td><p>${order.user.username }</p></td>
            <td><p>${order.datetime }</p></td>
            <td>
               <c:if test="${order.status==2 }">
                  <a class="btn btn-success" href="/admin/order_status?id=${order.id }&status=3">发货</a>
               </c:if>
               <c:if test="${order.status==3 }">
                  <a class="btn btn-warning" href="/admin/order_status?id=${order.id }&status=4">完成</a>
               </c:if>
               <a class="btn btn-danger" href="/admin/order_delete?id=${order.id }&pageNumber=${p.pageNumber}&status=${status}">删除</a>
            </td>
         </tr>
      </c:forEach>
  
    
</table>

<br>
   <jsp:include page="/page.jsp">
      <jsp:param value="/admin/order_list" name="url"/>
      <jsp:param value="&status=${status}" name="param"/>
   </jsp:include>
<br>
</div>
</body>
</html>

三、请简要描述过滤器拦截登录的核心代码，以及过滤器类的配置文件。

AdminFilter.class类拦截用户直接通过输入url进入管理员页面，如果通过url访问admin/…会进行拦截，判断是否有用户，如果没有进入index.jsp页面，否则将请求转发给过滤器链上下一个对象。

import model.User;

import javax.servlet.*;
import javax.servlet.annotation.WebFilter;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.IOException;

@WebFilter(filterName = "AdminFilter",urlPatterns = "/admin/*")
public class AdminFilter implements Filter {
    public void destroy() {
    }

    public void doFilter(ServletRequest req, ServletResponse resp, FilterChain chain) throws ServletException, IOException {
        HttpServletRequest request = (HttpServletRequest)req;
        HttpServletResponse requestp = (HttpServletResponse)resp;
        User u = (User) request.getSession().getAttribute("user");
        if(u==null || u.isIsadmin()==false) {
            requestp.sendRedirect("../index.jsp");
        }else {
            // pass the request along the filter chain
            chain.doFilter(req, resp);
        }
    }

    public void init(FilterConfig config) throws ServletException {

    }

}

EncodeFilter.class过滤器实现对所有的页面内容经行utf-8编码；

import javax.servlet.*;

import javax.servlet.annotation.WebFilter;
import java.io.IOException;

@WebFilter(filterName = "EncodeFilter",urlPatterns = "/*")
public class EncodeFilter implements Filter {
    public void destroy() {
    }

    public void doFilter(ServletRequest req, ServletResponse resp, FilterChain chain) throws ServletException, IOException {
        req.setCharacterEncoding("utf-8");
        chain.doFilter(req, resp);
    }

    public void init(FilterConfig config) throws ServletException {

    }
}

四、请简要该系统中使用MVC模式分别如何封装，用到了什么框架，并举例说明一下你是如何封装查询商品列表功能的？

本项目使用MVC的思想设计架构，使用Servlet获取和发送请求，Filter拦截请求，通过jsp进行页面展示。

举例：如图获取全部系列的蛋糕具体步骤如下

首先通过首页index.jsp（实际为header.jsp的内容，只是被引用了）目录单击商品分类，出现下拉菜单栏，再点击全部系列，会跳转到GoodsListServlet类中，（这里只举内容，不考虑客户登录和分页）GoodsListServlet类通过调用GoodsService类中的selectPageByTypeId方法，selectPageByTypeId方法再去调用GoodsDao中的getCountOfGoodsByTypeID去获取数据库的内容，内容以对象的方式保存在request作用域中，然后在转发进入的页面，通过goods_list页面展示数据。

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