一、系统介绍

1.软件环境

IDEA：2018.2

Java：jdk1.8

Mysql：8.0.13

Tomcat：8.5.23

Maven：3.5.3

2.功能模块图

3.系统功能

一、用户

1.注册登录

2.浏览商品

3.购物车管理

4.订单管理

5.退出登录

二、管理员

1.登录

2.用户管理

3.分类管理

4.商品管理

5.订单管理

6.退出登录

4.数据库表

管理员表：admin_user

分类表：classification

订单表：order

订单项目表：order_item

商品表：product

用户表：user

5.SQL语句

/*
 Navicat Premium Data Transfer
 Source Server         : MySQL
 Source Server Type    : MySQL
 Source Server Version : 80013
 Source Host           : localhost:3306
 Source Schema         : springboot_onlinemall
 Target Server Type    : MySQL
 Target Server Version : 80013
 File Encoding         : 65001
 Date: 02/06/2021 20:13:12
*/
SET NAMES utf8mb4;
SET FOREIGN_KEY_CHECKS = 0;
-- ----------------------------
-- Table structure for admin_user
-- ----------------------------
DROP TABLE IF EXISTS `admin_user`;
CREATE TABLE `admin_user`  (
  `id` int(11) NOT NULL AUTO_INCREMENT,
  `password` varchar(255) CHARACTER SET utf8 COLLATE utf8_general_ci NULL DEFAULT NULL,
  `username` varchar(255) CHARACTER SET utf8 COLLATE utf8_general_ci NOT NULL,
  PRIMARY KEY (`id`) USING BTREE
) ENGINE = InnoDB AUTO_INCREMENT = 3 CHARACTER SET = utf8 COLLATE = utf8_general_ci ROW_FORMAT = Dynamic;
-- ----------------------------
-- Records of admin_user
-- ----------------------------
INSERT INTO `admin_user` VALUES (1, 'admin', 'admin');
INSERT INTO `admin_user` VALUES (2, 'hfb', 'hfb');
-- ----------------------------
-- Table structure for classification
-- ----------------------------
DROP TABLE IF EXISTS `classification`;
CREATE TABLE `classification`  (
  `id` int(11) NOT NULL AUTO_INCREMENT,
  `cname` varchar(255) CHARACTER SET utf8 COLLATE utf8_general_ci NULL DEFAULT NULL,
  `parent_id` int(11) NULL DEFAULT NULL,
  `type` int(11) NULL DEFAULT NULL,
  PRIMARY KEY (`id`) USING BTREE
) ENGINE = InnoDB AUTO_INCREMENT = 12 CHARACTER SET = utf8 COLLATE = utf8_general_ci ROW_FORMAT = Dynamic;
-- ----------------------------
-- Records of classification
-- ----------------------------
INSERT INTO `classification` VALUES (1, '服装', 0, 1);
INSERT INTO `classification` VALUES (2, '电脑', NULL, 1);
INSERT INTO `classification` VALUES (3, '手机', NULL, 1);
INSERT INTO `classification` VALUES (4, '食品', NULL, 1);
INSERT INTO `classification` VALUES (5, '笔记本', 2, 2);
INSERT INTO `classification` VALUES (6, '平板', 2, 2);
INSERT INTO `classification` VALUES (7, '台式机', 2, 2);
INSERT INTO `classification` VALUES (9, '家居', 0, 1);
INSERT INTO `classification` VALUES (10, '饮料', 4, 2);
INSERT INTO `classification` VALUES (11, '智能手机', 3, 2);
-- ----------------------------
-- Table structure for order
-- ----------------------------
DROP TABLE IF EXISTS `order`;
CREATE TABLE `order`  (
  `id` int(11) NOT NULL AUTO_INCREMENT,
  `addr` varchar(255) CHARACTER SET utf8 COLLATE utf8_general_ci NULL DEFAULT NULL,
  `name` varchar(255) CHARACTER SET utf8 COLLATE utf8_general_ci NULL DEFAULT NULL,
  `order_time` datetime(0) NULL DEFAULT NULL,
  `phone` varchar(255) CHARACTER SET utf8 COLLATE utf8_general_ci NULL DEFAULT NULL,
  `state` int(11) NULL DEFAULT NULL,
  `total` double NULL DEFAULT NULL,
  `user_id` int(11) NULL DEFAULT NULL,
  PRIMARY KEY (`id`) USING BTREE
) ENGINE = InnoDB AUTO_INCREMENT = 9 CHARACTER SET = utf8 COLLATE = utf8_general_ci ROW_FORMAT = Dynamic;
-- ----------------------------
-- Records of order
-- ----------------------------
INSERT INTO `order` VALUES (1, 'fjsdakl', '小明', '2017-11-25 19:23:48', '12345654', 4, 8888, 1);
INSERT INTO `order` VALUES (2, 'kdls;ajfklafkasld', 'tom', '2017-11-25 22:10:39', '123456894', 3, 17998, 1);
INSERT INTO `order` VALUES (3, 'ffggghhhhfdfhjhff', 'Catalina', '2017-11-25 22:52:44', '1234322313', 2, 6077, 1);
INSERT INTO `order` VALUES (4, 'fdsakldfjasl;', 'tomcat', '2017-11-25 23:35:01', '1234567878', 4, 8999, 1);
INSERT INTO `order` VALUES (5, 'Gggggggg', 'Hfb', '2017-11-26 02:53:14', '18679658549', 1, 5999, 1);
INSERT INTO `order` VALUES (6, '1', '1', '2021-06-01 11:16:16', '12345678911', 2, 8888, 4);
INSERT INTO `order` VALUES (7, '1', '1', '2021-06-01 11:23:34', '123456789', 1, 8888, 4);
INSERT INTO `order` VALUES (8, 'xxx', 'xxx', '2021-06-02 11:56:41', '12345678911', 2, 8999, 3);
-- ----------------------------
-- Table structure for order_item
-- ----------------------------
DROP TABLE IF EXISTS `order_item`;
CREATE TABLE `order_item`  (
  `id` int(11) NOT NULL AUTO_INCREMENT,
  `count` int(11) NULL DEFAULT NULL,
  `order_id` int(11) NULL DEFAULT NULL,
  `product_id` int(11) NULL DEFAULT NULL,
  `sub_total` double NULL DEFAULT NULL,
  PRIMARY KEY (`id`) USING BTREE
) ENGINE = InnoDB AUTO_INCREMENT = 10 CHARACTER SET = utf8 COLLATE = utf8_general_ci ROW_FORMAT = Dynamic;
-- ----------------------------
-- Records of order_item
-- ----------------------------
INSERT INTO `order_item` VALUES (1, 1, 1, 10, 8888);
INSERT INTO `order_item` VALUES (2, 2, 2, 9, 17998);
INSERT INTO `order_item` VALUES (3, 2, 3, 11, 78);
INSERT INTO `order_item` VALUES (4, 1, 3, 13, 5999);
INSERT INTO `order_item` VALUES (5, 1, 4, 9, 8999);
INSERT INTO `order_item` VALUES (6, 1, 5, 13, 5999);
INSERT INTO `order_item` VALUES (7, 1, 6, 10, 8888);
INSERT INTO `order_item` VALUES (8, 1, 7, 10, 8888);
INSERT INTO `order_item` VALUES (9, 1, 8, 9, 8999);
-- ----------------------------
-- Table structure for product
-- ----------------------------
DROP TABLE IF EXISTS `product`;
CREATE TABLE `product`  (
  `id` int(11) NOT NULL AUTO_INCREMENT,
  `csid` int(11) NULL DEFAULT NULL,
  `desc` varchar(1000) CHARACTER SET utf8 COLLATE utf8_general_ci NULL DEFAULT NULL,
  `image` varchar(255) CHARACTER SET utf8 COLLATE utf8_general_ci NULL DEFAULT NULL,
  `is_hot` int(11) NULL DEFAULT NULL,
  `market_price` double NULL DEFAULT NULL,
  `pdate` datetime(0) NULL DEFAULT NULL,
  `shop_price` bigint(20) NULL DEFAULT NULL,
  `title` varchar(255) CHARACTER SET utf8 COLLATE utf8_general_ci NULL DEFAULT NULL,
  PRIMARY KEY (`id`) USING BTREE
) ENGINE = InnoDB AUTO_INCREMENT = 14 CHARACTER SET = utf8 COLLATE = utf8_general_ci ROW_FORMAT = Dynamic;
-- ----------------------------
-- Records of product
-- ----------------------------
INSERT INTO `product` VALUES (9, 5, '新一代 Surface Pro 比以往更出色，它不仅仅是一台笔记本，还能在工作室模式和平板间灵活切换.\r\n\r\n随心所欲，百变菁英 震撼的 PixelSense™ 显示屏支持触控笔* 和触摸操作，设计方面也有所改进，与 Surface Pro 4 相比，速度和性能都得到了进一步提升，电池续航能力有较大提高。\r\n\r\n无风扇，更安静 灵感随意 随手拈来 \r\n\r\n快捷刷脸登陆 保护隐私 轻松唤醒刷脸登陆 充分保护您的私人数据**** 无论您喜欢摄影、绘画、音乐或创作\r\n\r\n精彩视频\r\nSurface Pro总能满足您诸多创作需求 Surface Pro 酷睿 m3 和 i5 型号配备全新无风扇冷却系统***，\r\ni7 型号改进了混合冷却系统，您可以更安静地工作或播放喜欢的节目。', '/mall/admin/product/img/0B1CDC0C82A79A25A4BA159D88D8AC.jpg', 1, 9999, '2017-11-25 00:37:57', 8999, '微软（Microsoft）新Surface Pro 二合一平板电脑 12.3英寸（Intel Core i5 8G内存 256G存储 ）');
INSERT INTO `product` VALUES (10, 11, '一直以来，我们都心存一个设想，期待着能够打造出这样一部 iPhone：它有整面的屏幕，能让你在使用时完全沉浸其中，仿佛忘记了它的存在。它是如此智能，你的一触、一碰、一言、一语，哪怕是轻轻一瞥，都会得到它心有灵犀的回应。而这个设想，终于随着 iPhone X 的到来成为了现实。现在，就跟未来见个面吧。', '/mall/admin/product/img/E98ECEAC9E68BE31BB623419FD0C9E.png', 1, 9999, '2017-11-24 22:17:54', 8888, 'Apple iPhone X (A1865) 64GB 银色 移动联通电信4G手机');
INSERT INTO `product` VALUES (11, 10, '京东价：京东价为商品的销售价，是您最终决定是否购买商品的依据。\r\n划线价：商品展示的划横线价格为参考价，该价格可能是品牌专柜标价、商品吊牌价或由品牌供应商提供的正品零售价（如厂商指导价、建议零售价等）或该商品在京东平台上曾经展示过的销售价；由于地区、时间的差异性和市场行情波动，品牌专柜标价、商品吊牌价等可能会与您购物时展示的不一致，该价格仅供您参考。\r\n折扣：如无特殊说明，折扣指销售商在原价、或划线价（如品牌专柜标价、商品吊牌价、厂商指导价、厂商建议零售价）等某一价格基础上计算出的优惠比例或优惠金额；如有疑问，您可在购买前联系销售商进行咨询。\r\n异常问题：商品促销信息以商品详情页“促销”栏中的信息为准；商品的具体售价以订单结算页价格为准；如您发现活动商品售价或促销信息有异常，建议购买前先联系销售商咨询。', '/mall/admin/product/img/EA03D40CEC55463A958B3629511493.jpg', 0, 40.9, '2017-11-25 22:37:23', 39, '可口可乐330ml*24听整箱装');
INSERT INTO `product` VALUES (12, 7, '搭载NVIDIA GeForce GTX1060 3G独立显卡，强大的图像显示和处理功能，\r\n既可以高画质下流畅运行工作软件，也支持主流大型游戏，工作游戏，左右兼顾。\r\n并支持兼容主流VR眼镜设备，为你带来身临其境的沉浸体验。', '/mall/admin/product/img/3E1E590D6BD2ED1CF047045C83B313.jpg', 1, 4999, '2017-11-25 22:39:01', 3999, '惠普（HP）光影精灵580 吃鸡游戏主机（i5-7400 8G 128GSSD+1T GTX1060）');
INSERT INTO `product` VALUES (13, 7, '原本就拥有强劲的基础性能，能够轻松通吃时下的主流电竞游戏；外观方面整机采用多面切割搭配碳纤铠甲风格，搭配“胜利之眼”游戏氛围灯，凸显电竞元素；最主要的是这是一款UIY电竞主机，机箱内部已经给升级留足了接口和空间，在官方配置的基础上我们还可以进行性能和外观方面的额升级，而且官方配件仍然能在保修范围内。品牌PC厂商参与到PC个性化定制和部件升级服务中来，同时提供品牌厂商一贯的服务优势，完全解决了DIY模式下遇到的种种痛点。不得不说联想拯救者刃 7000的出现，开启了PC UIY时代。', '/mall/admin/product/img/9F6B955F4C732FF96793FC8BB2F244.jpg', 1, 6499, '2017-11-25 22:41:06', 5999, '联想（Lenovo）拯救者刃7000 UIY主机( i7-7700 8G 128G SSD 1T硬盘 GTX1060 Win10)');
-- ----------------------------
-- Table structure for user
-- ----------------------------
DROP TABLE IF EXISTS `user`;
CREATE TABLE `user`  (
  `id` int(11) NOT NULL AUTO_INCREMENT,
  `addr` varchar(255) CHARACTER SET utf8 COLLATE utf8_general_ci NULL DEFAULT NULL,
  `email` varchar(255) CHARACTER SET utf8 COLLATE utf8_general_ci NULL DEFAULT NULL,
  `name` varchar(255) CHARACTER SET utf8 COLLATE utf8_general_ci NULL DEFAULT NULL,
  `password` varchar(255) CHARACTER SET utf8 COLLATE utf8_general_ci NULL DEFAULT NULL,
  `phone` varchar(255) CHARACTER SET utf8 COLLATE utf8_general_ci NULL DEFAULT NULL,
  `username` varchar(255) CHARACTER SET utf8 COLLATE utf8_general_ci NULL DEFAULT NULL,
  PRIMARY KEY (`id`) USING BTREE
) ENGINE = InnoDB AUTO_INCREMENT = 5 CHARACTER SET = utf8 COLLATE = utf8_general_ci ROW_FORMAT = Dynamic;
-- ----------------------------
-- Records of user
-- ----------------------------
INSERT INTO `user` VALUES (1, 'wew6698888', '89****96@qq.com', 'skywalker', '123456', '17688970006', 'hfb');
INSERT INTO `user` VALUES (2, '1235645645646', '89***96@qq.com', 'hfb', '123456', '18645954845', 'jesse');
INSERT INTO `user` VALUES (3, '江西省 吉安市 泰和县', '8976677657@qq.com', '曾涛涛', '123456', '12345678941', 'ztt');
SET FOREIGN_KEY_CHECKS = 1;

6.工程截图

二、系统展示

1.用户-浏览商品

2.用户-注册

3.用户-登录

4.用户-购物车管理

5.用户-订单管理

7.管理员-登录

8.管理员-用户管理

9.管理员-分类管理

10.管理员-商品管理

11.管理员-订单管理

三、代码实现

AdminClassificationController

package priv.jesse.mall.web.admin;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.data.domain.PageRequest;
import org.springframework.data.domain.Pageable;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import org.springframework.web.bind.annotation.RequestParam;
import org.springframework.web.bind.annotation.ResponseBody;
import priv.jesse.mall.entity.Classification;
import priv.jesse.mall.entity.pojo.ResultBean;
import priv.jesse.mall.service.ClassificationService;
import java.util.ArrayList;
import java.util.List;
import java.util.Map;
@Controller
@RequestMapping("/admin/classification")
public class AdminClassificationController {
    @Autowired
    private ClassificationService classificationService;
    /**
     * 返回列表页面
     *
     * @param type
     * @return
     */
    @RequestMapping("/toList.html")
    public String toList(int type) {
        if (type == 1) {// 一级分类页面
            return "admin/category/list";
        } else if (type == 2) {// 二级分类页面
            return "admin/categorysec/list";
        } else {
            return "";
        }
    }
    /**
     * 打开添加分类页面
     *
     * @param type
     * @return
     */
    @RequestMapping("/toAdd.html")
    public String toAdd(int type) {
        if (type == 1) {// 一级分类页面
            return "admin/category/add";
        } else if (type == 2) {// 二级分类页面
            return "admin/categorysec/add";
        } else {
            return "";
        }
    }
    /**
     * 打开编辑页面
     *
     * @param id
     * @param type
     * @param map
     * @return
     */
    @RequestMapping("/toEdit.html")
    public String toEdit(int id, int type, Map<String, Object> map) {
        Classification classification = classificationService.findById(id);
        map.put("cate", classification);
        if (type == 1) {// 一级分类页面
            return "admin/category/edit";
        } else if (type == 2) {// 二级分类页面
            Classification classification1 = classificationService.findById(classification.getParentId());
            map.put("cate", classification1);
            map.put("catese",classification);
            return "admin/categorysec/edit";
        } else {
            return "";
        }
    }
    @ResponseBody
    @RequestMapping(method = RequestMethod.POST, value = "/add.do")
    public ResultBean<Boolean> add(String cname, int parentId, int type) {
        Classification classification = new Classification();
        classification.setCname(cname);
        classification.setParentId(parentId);
        classification.setType(type);
        classificationService.create(classification);
        return new ResultBean<>(true);
    }
    @ResponseBody
    @RequestMapping(method = RequestMethod.POST, value = "/update.do")
    public ResultBean<Boolean> update(int id, String cname, int parentId, int type) {
        Classification classification = classificationService.findById(id);
        classification.setCname(cname);
        classification.setParentId(parentId);
        classification.setType(type);
        classificationService.update(classification);
        return new ResultBean<>(true);
    }
    @ResponseBody
    @RequestMapping("/del.do")
    public ResultBean<Boolean> del(int id) {
        classificationService.delById(id);
        return new ResultBean<>(true);
    }
    @RequestMapping("/list.do")
    @ResponseBody
    public ResultBean<List<Classification>> findAll(int type,
                                                    int pageindex, @RequestParam(value = "pageSize", defaultValue = "15") int pageSize) {
        List<Classification> list = new ArrayList<>();
        if (pageindex == -1)
            list = classificationService.findAll(type);
        else {
            Pageable pageable = new PageRequest(pageindex, pageSize, null);
            list = classificationService.findAll(type, pageable).getContent();
        }
        return new ResultBean<>(list);
    }
    @ResponseBody
    @RequestMapping("/getTotal.do")
    public ResultBean<Integer> getTotal(int type) {
        Pageable pageable = new PageRequest(1, 15, null);
        int count = (int) classificationService.findAll(type, pageable).getTotalElements();
        return new ResultBean<>(count);
    }
}

AdminController

package priv.jesse.mall.web.admin;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import org.springframework.web.bind.annotation.ResponseBody;
import priv.jesse.mall.entity.AdminUser;
import priv.jesse.mall.entity.pojo.ResultBean;
import priv.jesse.mall.service.AdminUserService;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.IOException;
@Controller
@RequestMapping("/admin")
public class AdminController {
    @Autowired
    private AdminUserService adminUserService;
    /**
     * 访问首页
     *
     * @return
     */
    @RequestMapping("/toIndex.html")
    public String toIndex() {
        return "admin/index";
    }
    /**
     * 访问登录页面
     *
     * @return
     */
    @RequestMapping("/toLogin.html")
    public String toLogin() {
        return "admin/login";
    }
    /**
     * 登录请求
     *
     * @param username
     * @param password
     */
    //@ResponseBody
    @RequestMapping(method = RequestMethod.POST, value = "/login.do")
    public void login(String username, String password, HttpServletRequest request, HttpServletResponse response) throws IOException {
        AdminUser adminUser = adminUserService.checkLogin(request, username, password);
        response.sendRedirect("/mall/admin/toIndex.html");
    }
    /**
     * 退出登录
     * @param request
     * @param response
     * @throws IOException
     */
    @RequestMapping("/logout.do")
    public void logout(HttpServletRequest request, HttpServletResponse response) throws IOException {
        request.getSession().removeAttribute("login_user");
        response.sendRedirect("toLogin.html");
    }
}

AdminOrderController

package priv.jesse.mall.web.admin;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.data.domain.PageRequest;
import org.springframework.data.domain.Pageable;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestParam;
import org.springframework.web.bind.annotation.ResponseBody;
import priv.jesse.mall.entity.Order;
import priv.jesse.mall.entity.OrderItem;
import priv.jesse.mall.entity.pojo.ResultBean;
import priv.jesse.mall.service.OrderService;
import java.util.List;
@Controller
@RequestMapping("/admin/order")
public class AdminOrderController {
    @Autowired
    private OrderService orderService;
    /**
     * 打开订单列表页面
     * @return
     */
    @RequestMapping("/toList.html")
    public String toList() {
        return "admin/order/list";
    }
    /**
     * 获取所有订单的总数
     * @return
     */
    @ResponseBody
    @RequestMapping("/getTotal.do")
    public ResultBean<Integer> getTotal() {
        Pageable pageable = new PageRequest(1, 15, null);
        int total = (int) orderService.findAll(pageable).getTotalElements();
        return new ResultBean<>(total);
    }
    /**
     * 获取所有订单
     * @param pageindex
     * @param pageSize
     * @return
     */
    @ResponseBody
    @RequestMapping("/list.do")
    public ResultBean<List<Order>> listData(int pageindex,
                                            @RequestParam(value = "pageSize", defaultValue = "15") int pageSize) {
        Pageable pageable = new PageRequest(pageindex, pageSize, null);
        List<Order> list = orderService.findAll(pageable).getContent();
        return new ResultBean<>(list);
    }
    /**
     * 获取订单项
     * @param orderId
     * @return
     */
    @ResponseBody
    @RequestMapping("/getDetail.do")
    public ResultBean<List<OrderItem>> getDetail(int orderId) {
        List<OrderItem> list = orderService.findItems(orderId);
        return new ResultBean<>(list);
    }
    /**
     * 发货
     * @param id
     * @return
     */
    @ResponseBody
    @RequestMapping("/send.do")
    public ResultBean<Boolean> send(int id) {
        orderService.updateStatus(id,3);
        return new ResultBean<>(true);
    }
}

AdminProductController

package priv.jesse.mall.web.admin;
import org.apache.commons.lang.StringUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.data.domain.PageRequest;
import org.springframework.data.domain.Pageable;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.*;
import org.springframework.web.multipart.MultipartFile;
import priv.jesse.mall.entity.Classification;
import priv.jesse.mall.entity.Product;
import priv.jesse.mall.entity.pojo.ResultBean;
import priv.jesse.mall.service.ClassificationService;
import priv.jesse.mall.service.ProductService;
import priv.jesse.mall.utils.FileUtil;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.File;
import java.io.IOException;
import java.net.URLEncoder;
import java.nio.file.Files;
import java.nio.file.Paths;
import java.util.Date;
import java.util.List;
import java.util.Map;
@Controller
@RequestMapping("/admin/product")
public class AdminProductController {
    @Autowired
    private ProductService productService;
    @Autowired
    private ClassificationService classificationService;
    @RequestMapping("/toList.html")
    public String toList() {
        return "admin/product/list";
    }
    @RequestMapping("/toAdd.html")
    public String toAdd() {
        return "admin/product/add";
    }
    @RequestMapping("/toEdit.html")
    public String toEdit(int id, Map<String, Object> map) {
        Product product = productService.findById(id);
        Classification classification = classificationService.findById(product.getCsid());
        product.setCategorySec(classification);
        map.put("product", product);
        return "admin/product/edit";
    }
    @ResponseBody
    @RequestMapping("/list.do")
    public ResultBean<List<Product>> listProduct(int pageindex,
                                                 @RequestParam(value = "pageSize", defaultValue = "15") int pageSize) {
        Pageable pageable = new PageRequest(pageindex, pageSize, null);
        List<Product> list = productService.findAll(pageable).getContent();
        return new ResultBean<>(list);
    }
    @ResponseBody
    @RequestMapping("/getTotal")
    public ResultBean<Integer> getTotal() {
        Pageable pageable = new PageRequest(1, 15, null);
        int total = (int) productService.findAll(pageable).getTotalElements();
        return new ResultBean<>(total);
    }
    @RequestMapping("/del.do")
    @ResponseBody
    public ResultBean<Boolean> del(int id) {
        productService.delById(id);
        return new ResultBean<>(true);
    }
    @RequestMapping(method = RequestMethod.POST, value = "/add.do")
    public void add(MultipartFile image,
                    String title,
                    Double marketPrice,
                    Double shopPrice,
                    int isHot,
                    String desc,
                    int csid,
                    HttpServletRequest request,
                    HttpServletResponse response) throws Exception {
        Product product = new Product();
        product.setTitle(title);
        product.setMarketPrice(marketPrice);
        product.setShopPrice(shopPrice);
        product.setDesc(desc);
        product.setIsHot(isHot);
        product.setCsid(csid);
        product.setPdate(new Date());
        String imgUrl = FileUtil.saveFile(image);
        product.setImage(imgUrl);
        int id = productService.create(product);
        if (id <= 0) {
            request.setAttribute("message", "添加失败！");
            request.getRequestDispatcher("toAdd.html").forward(request, response);
        } else {
            request.getRequestDispatcher("toEdit.html?id=" + id).forward(request, response);
        }
    }
    @RequestMapping(method = RequestMethod.POST, value = "/update.do")
    public void update(int id,
                       String title,
                       Double marketPrice,
                       Double shopPrice,
                       String desc,
                       int csid,
                       int isHot,
                       MultipartFile image,
                       HttpServletRequest request,
                       HttpServletResponse response) throws Exception {
        Product product = productService.findById(id);
        product.setTitle(title);
        product.setMarketPrice(marketPrice);
        product.setShopPrice(shopPrice);
        product.setDesc(desc);
        product.setIsHot(isHot);
        product.setCsid(csid);
        product.setPdate(new Date());
        String imgUrl = FileUtil.saveFile(image);
        if (StringUtils.isNotBlank(imgUrl)) {
            product.setImage(imgUrl);
        }
        boolean flag = false;
        try {
            productService.update(product);
            flag = true;
        } catch (Exception e) {
            throw new Exception(e);
        }
        if (!flag) {
            request.setAttribute("message", "更新失败！");
        }
        response.sendRedirect("toList.html");
    }
    @RequestMapping(method = RequestMethod.GET, value = "/img/{filename:.+}")
    public void getImage(@PathVariable(name = "filename", required = true) String filename,
                         HttpServletResponse res) throws IOException {
        File file = new File("file/" + filename);
        if (file != null && file.exists()) {
            res.setHeader("content-type", "application/octet-stream");
            res.setHeader("Content-Disposition", "attachment;filename=" + URLEncoder.encode(filename, "UTF-8"));
            res.setContentLengthLong(file.length());
            Files.copy(Paths.get(file.toURI()), res.getOutputStream());
        }
    }
}

AdminUserController

package priv.jesse.mall.web.admin;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.data.domain.PageRequest;
import org.springframework.data.domain.Pageable;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.*;
import priv.jesse.mall.entity.User;
import priv.jesse.mall.entity.pojo.ResultBean;
import priv.jesse.mall.service.UserService;
import java.util.List;
import java.util.Map;
@Controller
@RequestMapping("/admin/user")
public class AdminUserController {
    @Autowired
    private UserService userService;
    /**
     * 打开用户列表页面
     * @return
     */
    @RequestMapping("/toList.html")
    public String toList() {
        return "admin/user/list";
    }
    /**
     * 打开编辑页面
     * @param id
     * @param map
     * @return
     */
    @RequestMapping("/toEdit.html")
    public String toEdit(int id, Map<String, Object> map) {
        User user = userService.findById(id);
        map.put("user", user);
        return "admin/user/edit";
    }
    /**
     * 获取所有用户列表
     *
     * @param pageindex
     * @return
     */
    @ResponseBody
    @RequestMapping("/list.do")
    public ResultBean<List<User>> findAllUser(int pageindex,
                                              @RequestParam(value = "pageSize", defaultValue = "15") int pageSize) {
        Pageable pageable = new PageRequest(pageindex, pageSize, null);
        List<User> users = userService.findAll(pageable).getContent();
        return new ResultBean<>(users);
    }
    @ResponseBody
    @RequestMapping("/getTotal.do")
    public ResultBean<Integer> geTotal() {
        Pageable pageable = new PageRequest(1, 15, null);
        int total = (int) userService.findAll(pageable).getTotalElements();
        return new ResultBean<>(total);
    }
    @ResponseBody
    @RequestMapping("/del.do")
    public ResultBean<Boolean> del(int id) {
        userService.delById(id);
        return new ResultBean<>(true);
    }
    @ResponseBody
    @RequestMapping(method = RequestMethod.POST, value = "/update.do")
    public ResultBean<Boolean> update(int id,String username,
                                      String password,String name,
                                      String phone,String email,
                                      String addr) {
        // 更新前先查询
        User user = userService.findById(id);
        user.setId(id);
        user.setName(name);
        user.setUsername(username);
        user.setPassword(password);
        user.setAddr(addr);
        user.setEmail(email);
        user.setPhone(phone);
        userService.update(user);
        return new ResultBean<>(true);
    }
}

ClassificationController

package priv.jesse.mall.web.user;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
@Controller
@RequestMapping("/classification")
public class ClassificationController {
}

Java+Springboot+Mybatis+Mysql+Bootstrap+Maven实现网上商城系统（上）