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基于（Spring Boot+Thymeleaf + MyBatis）实现电商平台系统

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1.开发工具：eclipse、Spring Boot+Thymeleaf + MyBatis、MySQL8.0

2.项目功能：

游客浏览商品，注册用户浏览商品，管理员后台增删改查商品

商品类型（goodstype）的增删查

商品（goodstable）的增删改查

后台顾客信息的删除，注册界面顾客的添加

查看或加入购物车，查看或加入收藏夹，查看或加入用户个人订单，查看用户个人信息。

3.其他功能

后台上传前台商品照片到mysql,前台验证码登录，异常界面处理，商品关键字搜索，前台轮播图展示，后台设置前台的推荐商品栏，后台设置前台的新添加商品栏，后台使用分页查询，前台模拟订单支付。

4.数据库表

在MySQL8中创建数据库shop1

创建8张与系统相关的数据表: ausertable 、busertable、carttable、focustable、goodstable、goodstype、orderdetail和orderbasetable.


一、eclipse中新建spring boot项目。


二、建立如下项目目录的文件。

1.1.1系统设计

电面务平台分为两个子系统，一是后台管理子系统， 二是前台电子商务子系统，下面分别说明这两个子系统的功能需求与模块划分。

1.1.1系统功能需求

1、后台管理子系统

后台管理子系统要求管理员登录成功后，才能对商品进行管理，包括添加商品、查询商品、修改商品以及删除商品。除商品管理外，管理员还需要对商品类型、注册用户以及用户的订单等进行管理。

2、前台电子商务子系统

1)非注册用户

非注册用户或未登录用户具有的功能如下:浏览首页、查看商品详情以及搜索商品。

2)用户

成功登录的用户除具有未登录用户具有的功能外，还具有购买商品、查看购物车、收藏商品、查看订单、查看收藏以及查看用户个人信息的功能。


三、编写HTML代码

addGood.html 

<!DOCTYPE html>
<html xmlns:th="http://www.thymeleaf.org">
<head>
<meta charset="UTF-8">
<title>商品类型添加页面</title>
<link rel="stylesheet" th:href="@{/css/bootstrap.min.css}" />
<body>
	<div th:include="admin/header"></div>
	<br><br><br>
	<div class="container">
		<div class="bg-primary"  style="width:70%; height: 60px;padding-top: 0.5px;">
	       <h3 align="center">添加商品</h3>
	   </div><br>
		<form th:action="@{/goods/addGoods?act=add}"
		 name="myform" method="post" 
		 th:object="${goods}"  
		 class="form-horizontal" 
		 enctype="multipart/form-data" >
			<div class="form-group has-success">
				<label class="col-sm-2 col-md-2 control-label">商品名称</label>
				<div class="col-sm-4 col-md-4">
					<input type="text" class="form-control"
					 placeholder="请输入商品名"
					th:field="*{gname}"/>
				</div>
			</div>
			<div class="form-group has-success">
				<label class="col-sm-2 col-md-2 control-label">商品原价</label>
				<div class="col-sm-4 col-md-4">
					<input type="number" class="form-control"
					 placeholder="请输入商品原价"
					th:field="*{goprice}"/>
				</div>
			</div>
			<div class="form-group has-success">
				<label class="col-sm-2 col-md-2 control-label">商品折扣价</label>
				<div class="col-sm-4 col-md-4">
					<input type="number" class="form-control"
					 placeholder="请输入商品折扣价"
					th:field="*{grprice}"/>
				</div>
			</div>
			<div class="form-group has-success">
				<label class="col-sm-2 col-md-2 control-label">商品库存</label>
				<div class="col-sm-4 col-md-4">
					<input type="number" class="form-control"
					 placeholder="请输入商品库存"
					th:field="*{gstore}"/>
				</div>
			</div>
			<div class="form-group has-success">
				  <label class="col-sm-2 col-md-2 control-label">商品图片</label>
				  <div class="col-sm-4 col-md-4">
		  				<input type="file" placeholder="请选择商品图片"  class="form-control" name="fileName"/>
				  </div>
			 </div>
			<div class="form-group has-success">
				<label class="col-sm-2 col-md-2 control-label">是否推荐</label>
				<div class="col-sm-4 col-md-4 radio">
					<label> 
						<input type="radio" th:field="*{isRecommend}" value="1">是
					</label>
					<label> 
						<input type="radio"  th:field="*{isRecommend}" value="0">否
					</label>
				</div>
			</div>
			<div class="form-group has-success">
				<label class="col-sm-2 col-md-2 control-label">是否广告</label>
				<div class="col-sm-4 col-md-4 radio">
					<label> 
						<input type="radio" th:field="*{isAdvertisement}" value="1">是
					</label>
					<label> 
						<input type="radio"    th:field="*{isAdvertisement}"s  value="0">否
					</label>
				</div>
			</div>
			<div class="form-group has-success">
				<label class="col-sm-2 col-md-2 control-label">商品类型</label>
				<div class="col-sm-4 col-md-4">
					<select class="form-control" th:field="*{goodstype_id}">
                        <option th:each="gty:${goodsType}" th:value="${gty.id}" th:text="${gty.typename}">
					</select>
				</div>
			</div>
			<div class="form-group">
				<div class="col-sm-offset-2 col-sm-10">
					<button type="submit"class="btn btn-success" >添加</button>
					<button type="reset" class="btn btn-primary" >重置</button>
				</div>
			</div>
		</form>
	</div>
</body>
</html>

addType.html 

<!DOCTYPE html>
<html xmlns:th="http://www.thymeleaf.org">
<head>
<meta charset="UTF-8">
<title>商品类型添加页面</title>
<link rel="stylesheet" th:href="@{/css/bootstrap.min.css}" />
<body>
	<div th:include="admin/header"></div>
	<br><br><br>
	<div class="container">
		<div class="bg-primary"  style="width:70%; height: 60px;padding-top: 0.5px;">
	       <h3 align="center">添加类型</h3>
	   </div><br>
		<form th:action="@{/type/addType}" name="myform" method="post" th:object="${goodsType}"  class="form-horizontal" role="form" >
			<div class="form-group has-success">
				<label class="col-sm-2 col-md-2 control-label">类型名称</label>
				<div class="col-sm-4 col-md-4">
					<input type="text" class="form-control"
					 placeholder="请输入类型名"
					th:field="*{typename}"/>
				</div>
			</div>
			<div class="form-group">
				<div class="col-sm-offset-2 col-sm-10">
					<button type="submit"class="btn btn-success" >添加</button>
					<button type="reset" class="btn btn-primary" >重置</button>
				</div>
			</div>
		</form>
	</div>
</body>
</html>

allOrder.html 

<!DOCTYPE html>
<html xmlns:th="http://www.thymeleaf.org">
<head>
<base th:href="@{/}">
<meta charset="UTF-8">
<title>主页</title>
<link rel="stylesheet" href="css/bootstrap.min.css" />
</head>
<body>
	<!-- 加载header.html -->
	<div th:include="admin/header"></div>
	<br><br><br>
	<div class="container">
		<div class="panel panel-primary">
			<div class="panel-heading">
				<h3 class="panel-title">订单列表</h3>
			</div>
			<div class="panel-body">
				<div class="table table-responsive">
					<table class="table table-bordered table-hover">
						<tbody class="text-center">
							<tr>
								<th>订单ID</th>
								<th>用户邮箱</th>
								<th>订单金额</th>
								<th>订单状态</th>
								<th>下单日期</th>
							</tr>
							<tr th:each="ao:${allOrders}">
								<td th:text="${ao.id}"></td>
								<td th:text="${ao.bemail}"></td>
								<td th:text="${ao.amount}"></td>
								<td th:text="(${ao.status} == 1)?'已支付':'未支付'"></td>
								<td th:text="${ao.orderdate}"></td>
							</tr>
							<tr>
								<td colspan="5" align="right">
									<ul class="pagination">
										<li><a>第<span th:text="${currentPage}" ></span>页</a></li>
										<li><a>共<span th:text="${totalPage}" ></span>页</a></li>
										<li>
											<span th:if="${currentPage} != 1" >
												<a th:href="@{selectOrder?currentPage=${currentPage - 1}}">上一页</a>
											</span>
											<span th:if="${currentPage} != ${totalPage}" >
												<a th:href="@{selectOrder?currentPage=${currentPage - 1}}">下一页</a>
											</span>
										</li>
									</ul>
								</td>
							</tr>
						</tbody>
					</table>
				</div>
			</div>
		</div>
	</div>
</body>
</html>

allUser.html 

<!DOCTYPE html>
<html xmlns:th="http://www.thymeleaf.org">
<head>
<base th:href="@{/}">
<meta charset="UTF-8">
<title>主页</title>
<link rel="stylesheet" href="css/bootstrap.min.css" />
<script src="js/jquery.min.js"></script>
<script type="text/javascript" th:inline="javascript">
	function deleteUsers(tid){
		$.ajax(
			{
				//请求路径，要注意的是url和th:inline="javascript"
				url : [[@{/deleteUser}]],
				//请求类型
				type : "post",
				//data表示发送的数据
				data : {
					id : tid
				},
				//成功响应的结果
				success : function(obj){//obj响应数据
					if(obj == "no"){
						alert("该用户有关联不允许删除！");
					}else{
						if(window.confirm("真的删除该用户吗？")){
							//获取路径
							var pathName=window.document.location.pathname;
							//截取，得到项目名称
							var projectName=pathName.substring(0,pathName.substr(1).indexOf('/')+1);
							window.location.href = projectName + obj;
						}
					}
				},
		        error : function() {
		            alert("处理异常！");
		        }
			}	
		);
	}
	</script>
</head>
<body>
	<!-- 加载header.html -->
	<div th:include="admin/header"></div>
	<br><br><br>
	<div class="container">
		<div class="panel panel-primary">
			<div class="panel-heading">
				<h3 class="panel-title">商品列表</h3>
			</div>
			<div class="panel-body">
				<div class="table table-responsive">
					<table class="table table-bordered table-hover">
						<tbody class="text-center">
							<tr>
								<th>用户ID</th>
								<th>用户邮箱</th>
								<th>删除</th>
							</tr>
							<tr th:each="u:${allUsers}">
								<td th:text="${u.id}"></td>
								<td th:text="${u.bemail}"></td>
								<td>
									<a th:href="'javascript:deleteUsers('+ ${u.id} +')'" >删除</a>
								</td>
							</tr>
							<tr>
								<td colspan="3" align="right">
									<ul class="pagination">
										<li><a>第<span th:text="${currentPage}" ></span>页</a></li>
										<li><a>共<span th:text="${totalPage}" ></span>页</a></li>
										<li>
											<span th:if="${currentPage} != 1" >
												<a th:href="@{selectUser?currentPage=${currentPage - 1}}">上一页</a>
											</span>
											<span th:if="${currentPage} != ${totalPage}" >
												<a th:href="@{selectUser?currentPage=${currentPage - 1}}">下一页</a>
											</span>
										</li>
									</ul>
								</td>
							</tr>
						</tbody>
					</table>
				</div>
			</div>
		</div>
	</div>
</body>
</html>


四、spring boot层级

SpringBoot分为四层: controller层、 service层 、dao层、entity层

1.entity层:和model层- -样， 存放的是实体类，属性

值与数据库值保持一致， 实现setter和getter方法

AUser.java 

package com.ch.ebusiness.entity;
public class AUser {
	private String aname;
	private String apwd;
	public String getAname() {
		return aname;
	}
	public void setAname(String aname) {
		this.aname = aname;
	}
	public String getApwd() {
		return apwd;
	}
	public void setApwd(String apwd) {
		this.apwd = apwd;
	}
}

Buser.java 

package com.ch.ebusiness.entity;

import javax.validation.constraints.Email;
import javax.validation.constraints.NotBlank;

import org.hibernate.validator.constraints.Length;

public class BUser {
	private Integer id;
	@NotBlank(message="邮箱必须输入！")
	@Email(message="邮箱格式不正确！")
	private String bemail;
	@NotBlank(message="密码必须输入！")
	@Length(min=6, max=20, message="密码长度在6到20之间！")
	private String bpwd;
	private String rebpwd;
	private String code;
	public Integer getId() {
		return id;
	}
	public void setId(Integer id) {
		this.id = id;
	}
	public String getBemail() {
		return bemail;
	}
	public void setBemail(String bemail) {
		this.bemail = bemail;
	}
	public String getBpwd() {
		return bpwd;
	}
	public void setBpwd(String bpwd) {
		this.bpwd = bpwd;
	}
	public String getCode() {
		return code;
	}
	public void setCode(String code) {
		this.code = code;
	}
	public String getRebpwd() {
		return rebpwd;
	}
	public void setRebpwd(String rebpwd) {
		this.rebpwd = rebpwd;
	}
}

Goods.java 

package com.ch.ebusiness.entity;

import org.springframework.web.multipart.MultipartFile;

public class Goods {
	private int id;
	private String gname;
	private double goprice;
	private double grprice;
	private int gstore;
	private String  gpicture;
	private MultipartFile fileName;
	private int goodstype_id;
	private String typename;
	private int buyNumber;//加入购物车使用
	private int isAdvertisement;
	private int isRecommend;
	public int getId() {
		return id;
	}
	public void setId(int id) {
		this.id = id;
	}
	public String getGname() {
		return gname;
	}
	public void setGname(String gname) {
		this.gname = gname;
	}
	public double getGoprice() {
		return goprice;
	}
	public void setGoprice(double goprice) {
		this.goprice = goprice;
	}
	public double getGrprice() {
		return grprice;
	}
	public void setGrprice(double grprice) {
		this.grprice = grprice;
	}
	public int getGstore() {
		return gstore;
	}
	public void setGstore(int gstore) {
		this.gstore = gstore;
	}
	public String  getGpicture() {
		return gpicture;
	}
	public void setGpicture(String  gpicture) {
		this.gpicture = gpicture;
	}
	public int getGoodstype_id() {
		return goodstype_id;
	}
	public void setGoodstype_id(int goodstype_id) {
		this.goodstype_id = goodstype_id;
	}
	public String getTypename() {
		return typename;
	}
	public void setTypename(String typename) {
		this.typename = typename;
	}
	public int getBuyNumber() {
		return buyNumber;
	}
	public void setBuyNumber(int buyNumber) {
		this.buyNumber = buyNumber;
	}
	public int getIsAdvertisement() {
		return isAdvertisement;
	}
	public void setIsAdvertisement(int isAdvertisement) {
		this.isAdvertisement = isAdvertisement;
	}
	public int getIsRecommend() {
		return isRecommend;
	}
	public void setIsRecommend(int isRecommend) {
		this.isRecommend = isRecommend;
	}
	public MultipartFile getFileName() {
		return fileName;
	}
	public void setFileName(MultipartFile fileName) {
		this.fileName = fileName;
	}
}


2.dao层:即mapper层，对数据库进行持久化操作，他的方法是针对数据库操作额，基本. 上用的就是增删改查，就是一个接口，只有方法名，具体实现在mapper.xmI中。

GoodsRepository.java 

package com.ch.ebusiness.repository.admin;

import java.util.List;
import java.util.Map;

import org.apache.ibatis.annotations.Mapper;
import org.apache.ibatis.annotations.Param;
import com.ch.ebusiness.entity.Goods;
import com.ch.ebusiness.entity.GoodsType;

@Mapper
public interface GoodsRepository {
	int addGoods(Goods goods);
	int updateGoods(Goods goods);
	Goods selectAGoods(Integer id);
	int selectAllGoods();
	List<GoodsType> selectAllGoodsType();
	List<Goods> selectAllGoodsByPage(@Param("startIndex") int startIndex, @Param("perPageSize") int perPageSize);
	int  deleteAGoods(Integer id);
	List<Map<String, Object>> selectFocusGoods(Integer id);
	List<Map<String, Object>> selectCartGoods(Integer id);
	List<Map<String, Object>> selectOrderGoods(Integer id);
}

TypeRepository.java 

package com.ch.ebusiness.repository.admin;

import java.util.List;

import org.apache.ibatis.annotations.Mapper;
import org.apache.ibatis.annotations.Param;

import com.ch.ebusiness.entity.Goods;
import com.ch.ebusiness.entity.GoodsType;

@Mapper
public interface TypeRepository {
	int selectAll();
	List<GoodsType> selectAllTypeByPage(@Param("startIndex") int startIndex, @Param("perPageSize") int perPageSize);
	int deleteType(int id);
	List<Goods> selectGoods(int goodstype_id);
	int addType(GoodsType goodsType);
}

AdminMapper.xml 

<?xml version="1.0" encoding="UTF-8" ?>
<!DOCTYPE mapper
PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN"
"http://mybatis.org/dtd/mybatis-3-mapper.dtd">
<mapper namespace="com.ch.ebusiness.repository.admin.AdminRepository">
	<select id="login" parameterType="AUser" resultType="AUser">
		select * from ausertable where aname = #{aname} and apwd = #{apwd}
	</select>
</mapper>

IndexMapper.xml 

<?xml version="1.0" encoding="UTF-8" ?>
<!DOCTYPE mapper
PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN"
"http://mybatis.org/dtd/mybatis-3-mapper.dtd">
<mapper namespace="com.ch.ebusiness.repository.before.IndexRepository">
	<!-- 查询广告商品 -->
	<select id="selectAdvertisementGoods"  resultType="Goods">
		select 
			gt.*, gy.typename 
		from 
			goodstable gt,goodstype gy 
		where 
			gt.goodstype_id = gy.id 
			and gt.isAdvertisement = 1
		order by  gt.id desc limit 5 
	</select>
	<!-- 查询商品详情 -->
	<select id="selectAGoods"  resultType="Goods">
		select 
			gt.*, gy.typename 
		from 
			goodstable gt,goodstype gy 
		where 
			gt.goodstype_id = gy.id 
			and gt.id = #{id}
	</select>
	<!-- 查询商品类型 -->
	<select id="selectGoodsType" resultType="GoodsType">
		select * from goodstype
	</select>
	<!-- 查询推荐商品 -->
	<select id="selectRecommendGoods" resultType="Goods" parameterType="integer">
		select 
			gt.*, gy.typename 
		from 
			goodstable gt,goodstype gy 
		where 
			gt.goodstype_id = gy.id 
			and gt.isRecommend = 1
			<if test="tid != 0">
				and gy.id = #{tid} 
			</if>
		order by  gt.id desc limit 6 
	</select>
	<!-- 查询最新商品 -->
	<select id="selectLastedGoods" resultType="Goods" parameterType="integer">
		select 
			gt.*, gy.typename 
		from 
			goodstable gt,goodstype gy 
		where 
			gt.goodstype_id = gy.id 
			<if test="tid != 0">
				and gy.id = #{tid} 
			</if>
		order by  gt.id desc limit 6 
	</select>
	<!-- 首页搜索 -->
	<select id="search" resultType="Goods" parameterType="String">
		select gt.*, gy.typename from GOODSTABLE gt,GOODSTYPE gy where gt.goodstype_id = gy.id 
		and gt.gname like concat('%',#{mykey},'%')
	</select>
</mapper>

TypeMapper.xml 

<?xml version="1.0" encoding="UTF-8" ?>
<!DOCTYPE mapper
PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN"
"http://mybatis.org/dtd/mybatis-3-mapper.dtd">
<mapper namespace="com.ch.ebusiness.repository.admin.TypeRepository">
	<select id="selectAll"  resultType="integer">
		select count(*) from goodstype 
	</select>
	<!-- 分页查询 -->
	<select id="selectAllTypeByPage"  resultType="GoodsType">
		select * from goodstype  limit #{startIndex}, #{perPageSize} 
	</select>
	<!-- 删除类型 -->
	<delete id="deleteType" parameterType="integer">
		delete from goodstype where id=#{id}
	</delete>
	<!-- 查询该类型下是否有商品 -->
	<select id="selectGoods" parameterType="integer" resultType="Goods">
		select * from goodstable where goodstype_id = #{goodstype_id}
	</select>
	<!-- 添加类型 -->
	<insert id="addType" parameterType="GoodsType">
		insert into goodstype (id, typename) values(null, #{typename})
	</insert>
</mapper>


3.service层:业务层，存放业务逻辑处理，不直接对数据库进行操作，有接口和接口实现类，提供controller层调用方法。

AdminService.java 

package com.ch.ebusiness.service.admin;

import javax.servlet.http.HttpSession;
import javax.transaction.Transactional;

import org.springframework.stereotype.Service;
import org.springframework.ui.Model;

import com.ch.ebusiness.entity.AUser;
@Service
//@Transactional
public interface AdminService {
	public String login(AUser aUser, HttpSession session, Model model);
}

GoodsService.java 

package com.ch.ebusiness.service.admin;

import java.io.IOException;

import javax.servlet.http.HttpServletRequest;
import javax.transaction.Transactional;

import org.springframework.stereotype.Service;
import org.springframework.ui.Model;

import com.ch.ebusiness.entity.Goods;
@Service
//@Transactional
public interface GoodsService {
	public String selectAllGoodsByPage(Model model, int currentPage, String act);
	public String addGoods(Goods goods, HttpServletRequest  request, String act) throws IllegalStateException, IOException ;
	public String toAddGoods(Goods goods, Model model);
	public String detail(Model model, Integer id, String act);
	public String delete(Integer id);
}

TypeService.java 

package com.ch.ebusiness.service.admin;

import javax.transaction.Transactional;

import org.springframework.stereotype.Service;
import org.springframework.ui.Model;

import com.ch.ebusiness.entity.GoodsType;
@Service
//@Transactional
public interface TypeService {
	public String selectAllTypeByPage(Model model, int currentPage);
	public String delete(int id);
	public String addType(GoodsType goodsType);
}


4.controller层:控制层，导入service层，调用你service方法，controller通过 接收前端传来的参数进

行业务操作，在返回一个指定的路径或数据表。

AdminBaseController.java 

package com.ch.ebusiness.controller.admin;
import javax.servlet.http.HttpSession;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.ModelAttribute;
import com.ch.ebusiness.NoLoginException;
@Controller
public class AdminBaseController {
	/**
	 * 登录权限控制，处理方法执行前执行该方法 
	 */
	@ModelAttribute  
    public void isLogin(HttpSession session) throws NoLoginException {      
       if(session.getAttribute("auser") == null){  
            throw new NoLoginException("没有登录");
       }  
    } 
}

AdminController.java 

package com.ch.ebusiness.controller.admin;

import javax.servlet.http.HttpSession;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.ui.Model;
import org.springframework.web.bind.annotation.ModelAttribute;
import org.springframework.web.bind.annotation.RequestMapping;

import com.ch.ebusiness.entity.AUser;
import com.ch.ebusiness.service.admin.AdminService;

@Controller
@RequestMapping("/admin")
public class AdminController {
	@Autowired
	private AdminService adminService;
	@RequestMapping("/toLogin")
	public String toLogin(@ModelAttribute("aUser") AUser aUser) {
		return "admin/login";
	}
	@RequestMapping("/login")
	public String login(@ModelAttribute("aUser") AUser aUser, HttpSession session, Model model) {
		return adminService.login(aUser, session, model);
	}
}

GoodsController.java 

package com.ch.ebusiness.controller.admin;

import java.io.IOException;

import javax.servlet.http.HttpServletRequest;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.ui.Model;
import org.springframework.web.bind.annotation.ModelAttribute;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.ResponseBody;

import com.ch.ebusiness.entity.Goods;
import com.ch.ebusiness.service.admin.GoodsService;
@Controller
@RequestMapping("/goods")
public class GoodsController extends AdminBaseController{
	@Autowired
	private GoodsService goodsService;
	@RequestMapping("/selectAllGoodsByPage")
	public String selectAllGoodsByPage(Model model, int currentPage, String act) {
		return goodsService.selectAllGoodsByPage(model, currentPage, act);
	}
	@RequestMapping("/toAddGoods")
	public String toAddGoods(@ModelAttribute("goods") Goods goods, Model model) {
		goods.setIsAdvertisement(0);
		goods.setIsRecommend(1);
		return goodsService.toAddGoods(goods, model);
	}
	@RequestMapping("/addGoods")
	public String addGoods(@ModelAttribute("goods") Goods goods, HttpServletRequest  request, String act) throws IllegalStateException, IOException {
		return goodsService.addGoods(goods, request, act);
	}
	@RequestMapping("/detail")
	public String detail(Model model, Integer id, String act) {
		return goodsService.detail(model, id, act);
	}
	@RequestMapping("/delete")
	@ResponseBody
	public String delete(Integer id) {
		return goodsService.delete(id);
	}
}



五、SpringBoot各 层详解

constant:常量包，存放一些常量数据，如定义服务器响应状态码。

controller:控制器，存放各种控制器，来提供数据或

者返回界面

entity:实体类包，存放各种与数据库对应的实体类

mapper:存放返回数据json的格式样式

service:返回数据给控制调用


六、运行截图

管理员登录界面

管理员后台管理商品界面

商城前台界面

电商平台系统录屏


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