计算机毕业设计基于SpringBoot的校园闲置物品交易系统的设计与实现 Java实战项目附源码+文档+视频讲解

发布时间：2024年01月25日

博主介绍：?从事软件开发10年之余，专注于Java技术领域、Python人工智能及数据挖掘、小程序项目开发和Android项目开发等。CSDN、掘金、华为云、InfoQ、阿里云等平台优质作者?
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计算机毕业设计《1000套》?

1、项目介绍及开发技术

1.1 项目介绍

5.1 闲置物品Controller模块?

5.2 闲置物品Service模块?

5.3 闲置物品ServiceImpl模块

5.4?闲置物品Dao模块

6、论文目录结构

7、源码获取

1、项目介绍及开发技术

1.1 项目介绍

传统办法管理信息首先需要花费的时间比较多，其次数据出错率比较高，而且对错误的数据进行更改也比较困难，最后，检索数据费事费力。因此，在计算机上安装校园闲置物品交易系统软件来发挥其高效地信息处理的作用，可以规范信息管理流程，让管理工作可以系统化和程序化，同时，校园闲置物品交易系统的有效运用可以帮助管理人员准确快速地处理信息。

校园闲置物品交易系统在对开发工具的选择上也很慎重，为了便于开发实现，选择的开发工具为Eclipse，选择的数据库工具为Mysql。以此搭建开发环境实现校园闲置物品交易系统的功能。其中管理员管理用户，新闻资讯。

校园闲置物品交易系统是一款运用软件开发技术设计实现的应用系统，在信息处理上可以达到快速的目的，不管是针对数据添加，数据维护和统计，以及数据查询等处理要求，校园闲置物品交易系统都可以轻松应对。

1.2 开发技术

Java开发语言、SpringBoot、MyBatisPlus、MySQL数据库、Maven、IDEA开发工具、JDK1.8+、Vue、HTML、CSS、JS。

2、系统功能设计结构图

3、功能截图

用户信息管理：用户信息的查询管理，可以删除用户信息、修改用户信息、新增用户信息，还进行了对用户名称的模糊查询的条件。

?闲置物品管理：查看已发布的闲置物品数据，修改闲置物品，闲置物品作废，即可删除，还进行了对闲置物品名称的模糊查询闲置物品信息的类型查询等等一些条件。

资讯类型管理：?根据资讯类型进行条件查询，还可以对资讯类型进行新增、修改、查询操作等等。

资讯信息管理：?根据资讯信息进行新增、修改、查询操作等等。

4、数据库表结构设计

/*
SQLyog Ultimate v11.3 (64 bit)
MySQL - 5.7.32-log : Database - xiaoyuanxianzhiwupinjiaoyi
*********************************************************************
*/


/*!40101 SET NAMES utf8 */;

/*!40101 SET SQL_MODE=''*/;

/*!40014 SET @OLD_UNIQUE_CHECKS=@@UNIQUE_CHECKS, UNIQUE_CHECKS=0 */;
/*!40014 SET @OLD_FOREIGN_KEY_CHECKS=@@FOREIGN_KEY_CHECKS, FOREIGN_KEY_CHECKS=0 */;
/*!40101 SET @OLD_SQL_MODE=@@SQL_MODE, SQL_MODE='NO_AUTO_VALUE_ON_ZERO' */;
/*!40111 SET @OLD_SQL_NOTES=@@SQL_NOTES, SQL_NOTES=0 */;
CREATE DATABASE /*!32312 IF NOT EXISTS*/`xiaoyuanxianzhiwupinjiaoyi` /*!40100 DEFAULT CHARACTER SET utf8 */;

USE `xiaoyuanxianzhiwupinjiaoyi`;

/*Table structure for table `address` */

DROP TABLE IF EXISTS `address`;

CREATE TABLE `address` (
  `id` int(20) NOT NULL AUTO_INCREMENT COMMENT '主键 ',
  `yonghu_id` int(20) NOT NULL COMMENT '创建用户',
  `address_name` varchar(200) NOT NULL COMMENT '收货人 ',
  `address_phone` varchar(200) NOT NULL COMMENT '电话 ',
  `address_dizhi` varchar(200) NOT NULL COMMENT '地址 ',
  `isdefault_types` int(11) NOT NULL COMMENT '是否默认地址 ',
  `insert_time` timestamp NOT NULL DEFAULT CURRENT_TIMESTAMP COMMENT '添加时间',
  `update_time` timestamp NOT NULL DEFAULT CURRENT_TIMESTAMP COMMENT '修改时间',
  `create_time` timestamp NOT NULL DEFAULT CURRENT_TIMESTAMP COMMENT '创建时间 show3',
  PRIMARY KEY (`id`)
) ENGINE=InnoDB AUTO_INCREMENT=6 DEFAULT CHARSET=utf8 COMMENT='收货地址';

/*Data for the table `address` */

insert  into `address`(`id`,`yonghu_id`,`address_name`,`address_phone`,`address_dizhi`,`isdefault_types`,`insert_time`,`update_time`,`create_time`) values (1,3,'收货人1','17703786901','地址1',1,'2023-02-18 14:14:35','2023-02-18 14:14:35','2023-02-18 14:14:35'),(2,2,'收货人2','17703786902','地址2',1,'2023-02-18 14:14:35','2023-02-18 14:14:35','2023-02-18 14:14:35'),(3,1,'收货人3','17703786903','地址3',2,'2023-02-18 14:14:35','2023-02-18 14:54:56','2023-02-18 14:14:35'),(4,1,'收货人4','17703786904','地址4',1,'2023-02-18 14:14:35','2023-02-18 14:14:35','2023-02-18 14:14:35'),(5,1,'收货人5','17703786905','地址5',1,'2023-02-18 14:14:35','2023-02-18 14:54:49','2023-02-18 14:14:35');

/*Table structure for table `cart` */

DROP TABLE IF EXISTS `cart`;

CREATE TABLE `cart` (
  `id` int(11) NOT NULL AUTO_INCREMENT COMMENT '主键',
  `yonghu_id` int(11) DEFAULT NULL COMMENT '所属用户',
  `shangpin_id` int(11) DEFAULT NULL COMMENT '闲置物品',
  `buy_number` int(11) DEFAULT NULL COMMENT '购买数量',
  `create_time` timestamp NULL DEFAULT NULL COMMENT '添加时间',
  `update_time` timestamp NULL DEFAULT NULL COMMENT '更新时间',
  `insert_time` timestamp NULL DEFAULT NULL COMMENT '创建时间',
  PRIMARY KEY (`id`)
) ENGINE=InnoDB AUTO_INCREMENT=4 DEFAULT CHARSET=utf8 COMMENT='购物车';

/*Data for the table `cart` */

/*Table structure for table `config` */

DROP TABLE IF EXISTS `config`;

CREATE TABLE `config` (
  `id` bigint(20) NOT NULL AUTO_INCREMENT COMMENT '主键',
  `name` varchar(100) NOT NULL COMMENT '配置参数名称',
  `value` varchar(100) DEFAULT NULL COMMENT '配置参数值',
  PRIMARY KEY (`id`)
) ENGINE=InnoDB AUTO_INCREMENT=4 DEFAULT CHARSET=utf8 COMMENT='配置文件';

/*Data for the table `config` */

insert  into `config`(`id`,`name`,`value`) values (1,'轮播图1','upload/config1.jpg'),(2,'轮播图2','upload/config2.jpg'),(3,'轮播图3','upload/config3.jpg');

/*Table structure for table `dictionary` */

DROP TABLE IF EXISTS `dictionary`;

CREATE TABLE `dictionary` (
  `id` bigint(20) NOT NULL AUTO_INCREMENT COMMENT '主键',
  `dic_code` varchar(200) DEFAULT NULL COMMENT '字段',
  `dic_name` varchar(200) DEFAULT NULL COMMENT '字段名',
  `code_index` int(11) DEFAULT NULL COMMENT '编码',
  `index_name` varchar(200) DEFAULT NULL COMMENT '编码名字  Search111 ',
  `super_id` int(11) DEFAULT NULL COMMENT '父字段id',
  `beizhu` varchar(200) DEFAULT NULL COMMENT '备注',
  `create_time` timestamp NULL DEFAULT NULL COMMENT '创建时间',
  PRIMARY KEY (`id`)
) ENGINE=InnoDB AUTO_INCREMENT=30 DEFAULT CHARSET=utf8 COMMENT='字典';

/*Data for the table `dictionary` */

insert  into `dictionary`(`id`,`dic_code`,`dic_name`,`code_index`,`index_name`,`super_id`,`beizhu`,`create_time`) values (7,'shangpin_types','闲置物品类型',1,'闲置物品类型1',NULL,NULL,'2023-02-18 14:13:19'),(8,'shangpin_types','闲置物品类型',2,'闲置物品类型2',NULL,NULL,'2023-02-18 14:13:19'),(9,'shangxia_types','是否上架',1,'上架',NULL,NULL,'2023-02-18 14:13:19'),(10,'shangxia_types','是否上架',2,'下架',NULL,NULL,'2023-02-18 14:13:19'),(11,'shangjia_xingji_types','商家信用类型',1,'一级',NULL,NULL,'2023-02-18 14:13:19'),(12,'shangjia_xingji_types','商家信用类型',2,'二级',NULL,NULL,'2023-02-18 14:13:19'),(13,'shangjia_xingji_types','商家信用类型',3,'三级',NULL,NULL,'2023-02-18 14:13:19'),(18,'isdefault_types','是否默认地址',1,'否',NULL,NULL,'2023-02-18 14:13:19'),(19,'isdefault_types','是否默认地址',2,'是',NULL,NULL,'2023-02-18 14:13:19'),(20,'shangpin_order_types','订单类型',1,'已支付',NULL,NULL,'2023-02-18 14:13:19'),(21,'shangpin_order_types','订单类型',2,'退款',NULL,NULL,'2023-02-18 14:13:19'),(22,'shangpin_order_types','订单类型',3,'已发货',NULL,NULL,'2023-02-18 14:13:19'),(23,'shangpin_order_types','订单类型',4,'已收货',NULL,NULL,'2023-02-18 14:13:19'),(24,'shangpin_order_types','订单类型',5,'已评价',NULL,NULL,'2023-02-18 14:13:19'),(25,'shangpin_order_payment_types','订单支付类型',1,'现金',NULL,NULL,'2023-02-18 14:13:19'),(26,'news_types','资讯类型',1,'资讯类型1',NULL,NULL,'2023-02-18 14:13:19'),(27,'news_types','资讯类型',2,'资讯类型2',NULL,NULL,'2023-02-18 14:13:19'),(28,'sex_types','性别类型',1,'男',NULL,NULL,'2023-02-18 14:13:19'),(29,'sex_types','性别类型',2,'女',NULL,NULL,'2023-02-18 14:13:19');

/*Table structure for table `news` */

DROP TABLE IF EXISTS `news`;

CREATE TABLE `news` (
  `id` int(11) NOT NULL AUTO_INCREMENT COMMENT '主键',
  `news_name` varchar(200) DEFAULT NULL COMMENT '公告标题  Search111 ',
  `news_types` int(11) DEFAULT NULL COMMENT '公告类型  Search111 ',
  `news_photo` varchar(200) DEFAULT NULL COMMENT '公告图片',
  `insert_time` timestamp NULL DEFAULT NULL COMMENT '添加时间',
  `news_content` text COMMENT '公告详情',
  `create_time` timestamp NULL DEFAULT NULL COMMENT '创建时间 show1 show2 nameShow',
  PRIMARY KEY (`id`)
) ENGINE=InnoDB AUTO_INCREMENT=6 DEFAULT CHARSET=utf8 COMMENT='公告信息';

/*Data for the table `news` */

insert  into `news`(`id`,`news_name`,`news_types`,`news_photo`,`insert_time`,`news_content`,`create_time`) values (1,'公告标题1',1,'upload/news1.jpg','2023-02-18 14:14:35','公告详情1','2023-02-18 14:14:35'),(2,'公告标题2',1,'upload/news2.jpg','2023-02-18 14:14:35','公告详情2','2023-02-18 14:14:35'),(3,'公告标题3',1,'upload/news3.jpg','2023-02-18 14:14:35','公告详情3','2023-02-18 14:14:35'),(4,'公告标题4',1,'upload/news4.jpg','2023-02-18 14:14:35','公告详情4','2023-02-18 14:14:35'),(5,'公告标题5',2,'upload/news5.jpg','2023-02-18 14:14:35','公告详情5','2023-02-18 14:14:35');

/*Table structure for table `shangjia` */

DROP TABLE IF EXISTS `shangjia`;

CREATE TABLE `shangjia` (
  `id` int(11) NOT NULL AUTO_INCREMENT COMMENT '主键 ',
  `username` varchar(200) DEFAULT NULL COMMENT '账户 ',
  `password` varchar(200) DEFAULT NULL COMMENT '密码 ',
  `shangjia_name` varchar(200) DEFAULT NULL COMMENT '商家名称 Search111 ',
  `shangjia_phone` varchar(200) DEFAULT NULL COMMENT '联系方式',
  `shangjia_email` varchar(200) DEFAULT NULL COMMENT '邮箱',
  `shangjia_photo` varchar(200) DEFAULT NULL COMMENT '营业执照展示 ',
  `shangjia_xingji_types` int(11) DEFAULT NULL COMMENT '商家信用类型',
  `new_money` decimal(10,2) DEFAULT NULL COMMENT '现有余额',
  `shangjia_content` text COMMENT '商家简介 ',
  `shangjia_delete` int(11) DEFAULT NULL COMMENT '逻辑删除',
  `create_time` timestamp NULL DEFAULT NULL COMMENT '创建时间 show1 show2 photoShow ',
  PRIMARY KEY (`id`)
) ENGINE=InnoDB AUTO_INCREMENT=4 DEFAULT CHARSET=utf8 COMMENT='商家';

/*Data for the table `shangjia` */

insert  into `shangjia`(`id`,`username`,`password`,`shangjia_name`,`shangjia_phone`,`shangjia_email`,`shangjia_photo`,`shangjia_xingji_types`,`new_money`,`shangjia_content`,`shangjia_delete`,`create_time`) values (1,'a1','123456','商家名称1','17703786901','1@qq.com','upload/shangjia1.jpg',2,'504.72','商家简介1',1,'2023-02-18 14:14:35'),(2,'a2','123456','商家名称2','17703786902','2@qq.com','upload/shangjia2.jpg',2,'931.45','商家简介2',1,'2023-02-18 14:14:35'),(3,'a3','123456','商家名称3','17703786903','3@qq.com','upload/shangjia3.jpg',1,'840.99','商家简介3',1,'2023-02-18 14:14:35');

/*Table structure for table `shangpin` */

DROP TABLE IF EXISTS `shangpin`;

CREATE TABLE `shangpin` (
  `id` int(11) NOT NULL AUTO_INCREMENT COMMENT '主键 ',
  `shangjia_id` int(11) DEFAULT NULL COMMENT '商家',
  `shangpin_name` varchar(200) DEFAULT NULL COMMENT '闲置物品名称 Search111',
  `shangpin_photo` varchar(200) DEFAULT NULL COMMENT '闲置物品照片',
  `shangpin_types` int(11) DEFAULT NULL COMMENT '闲置物品类型 Search111',
  `shangpin_kucun_number` int(11) DEFAULT NULL COMMENT '闲置物品库存',
  `shangpin_old_money` decimal(10,2) DEFAULT NULL COMMENT '原价 ',
  `shangpin_new_money` decimal(10,2) DEFAULT NULL COMMENT '现价',
  `shangpin_clicknum` int(11) DEFAULT NULL COMMENT '点击次数 ',
  `shangxia_types` int(11) DEFAULT NULL COMMENT '是否上架 ',
  `shangpin_delete` int(11) DEFAULT NULL COMMENT '逻辑删除',
  `shangpin_content` text COMMENT '闲置物品简介 ',
  `create_time` timestamp NULL DEFAULT NULL COMMENT '创建时间  show1 show2 photoShow homeMain',
  PRIMARY KEY (`id`)
) ENGINE=InnoDB AUTO_INCREMENT=6 DEFAULT CHARSET=utf8 COMMENT='闲置物品';

/*Data for the table `shangpin` */

insert  into `shangpin`(`id`,`shangjia_id`,`shangpin_name`,`shangpin_photo`,`shangpin_types`,`shangpin_kucun_number`,`shangpin_old_money`,`shangpin_new_money`,`shangpin_clicknum`,`shangxia_types`,`shangpin_delete`,`shangpin_content`,`create_time`) values (1,1,'闲置物品名称1','upload/shangpin1.jpg',2,101,'830.43','420.05',111,1,1,'闲置物品简介1','2023-02-18 14:14:35'),(2,2,'闲置物品名称2','upload/shangpin2.jpg',2,101,'941.09','277.58',170,1,1,'闲置物品简介2','2023-02-18 14:14:35'),(3,2,'闲置物品名称3','upload/shangpin3.jpg',1,103,'893.64','367.77',426,1,1,'闲置物品简介3','2023-02-18 14:14:35'),(4,3,'闲置物品名称4','upload/shangpin4.jpg',1,103,'893.37','444.53',270,1,1,'闲置物品简介4','2023-02-18 14:14:35'),(5,2,'闲置物品名称5','upload/shangpin5.jpg',2,105,'849.38','327.02',360,2,1,'闲置物品简介5','2023-02-18 14:14:35');

/*Table structure for table `shangpin_commentback` */

DROP TABLE IF EXISTS `shangpin_commentback`;

CREATE TABLE `shangpin_commentback` (
  `id` int(11) NOT NULL AUTO_INCREMENT COMMENT '主键',
  `shangpin_id` int(11) DEFAULT NULL COMMENT '闲置物品',
  `yonghu_id` int(11) DEFAULT NULL COMMENT '用户',
  `shangpin_commentback_text` text COMMENT '评论内容',
  `insert_time` timestamp NULL DEFAULT NULL COMMENT '评论时间',
  `reply_text` text COMMENT '回复内容',
  `update_time` timestamp NULL DEFAULT NULL COMMENT '回复时间',
  `create_time` timestamp NULL DEFAULT NULL COMMENT '创建时间',
  PRIMARY KEY (`id`)
) ENGINE=InnoDB AUTO_INCREMENT=9 DEFAULT CHARSET=utf8 COMMENT='闲置物品评论';

/*Data for the table `shangpin_commentback` */

insert  into `shangpin_commentback`(`id`,`shangpin_id`,`yonghu_id`,`shangpin_commentback_text`,`insert_time`,`reply_text`,`update_time`,`create_time`) values (1,1,1,'评论内容1','2023-02-18 14:14:35','回复信息1','2023-02-18 14:14:35','2023-02-18 14:14:35'),(2,2,2,'评论内容2','2023-02-18 14:14:35','回复信息2','2023-02-18 14:14:35','2023-02-18 14:14:35'),(3,3,2,'评论内容3','2023-02-18 14:14:35','回复信息3','2023-02-18 14:14:35','2023-02-18 14:14:35'),(4,4,2,'评论内容4','2023-02-18 14:14:35','回复信息4','2023-02-18 14:14:35','2023-02-18 14:14:35'),(5,5,3,'评论内容5','2023-02-18 14:14:35','回复信息5','2023-02-18 14:14:35','2023-02-18 14:14:35'),(8,2,1,'购买完成可评论111','2023-02-18 14:56:51',NULL,NULL,'2023-02-18 14:56:51');

/*Table structure for table `shangpin_order` */

DROP TABLE IF EXISTS `shangpin_order`;

CREATE TABLE `shangpin_order` (
  `id` int(11) NOT NULL AUTO_INCREMENT COMMENT '主键',
  `shangpin_order_uuid_number` varchar(200) DEFAULT NULL COMMENT '订单号',
  `address_id` int(11) DEFAULT NULL COMMENT '收货地址 ',
  `shangpin_id` int(11) DEFAULT NULL COMMENT '闲置物品',
  `yonghu_id` int(11) DEFAULT NULL COMMENT '用户',
  `buy_number` int(11) DEFAULT NULL COMMENT '购买数量',
  `shangpin_order_true_price` decimal(10,2) DEFAULT NULL COMMENT '实付价格',
  `shangpin_order_types` int(11) DEFAULT NULL COMMENT '订单类型 Search111',
  `shangpin_order_payment_types` int(11) DEFAULT NULL COMMENT '支付类型',
  `insert_time` timestamp NULL DEFAULT NULL COMMENT '订单创建时间',
  `create_time` timestamp NULL DEFAULT NULL COMMENT '创建时间 show3',
  PRIMARY KEY (`id`)
) ENGINE=InnoDB AUTO_INCREMENT=13 DEFAULT CHARSET=utf8 COMMENT='闲置物品订单';

/*Data for the table `shangpin_order` */

insert  into `shangpin_order`(`id`,`shangpin_order_uuid_number`,`address_id`,`shangpin_id`,`yonghu_id`,`buy_number`,`shangpin_order_true_price`,`shangpin_order_types`,`shangpin_order_payment_types`,`insert_time`,`create_time`) values (10,'1676703316536',3,4,1,1,'444.53',1,1,'2023-02-18 14:55:17','2023-02-18 14:55:17'),(11,'1676703316536',3,2,1,1,'277.58',5,1,'2023-03-18 14:55:17','2023-02-18 14:55:17'),(12,'1676703316536',3,3,1,1,'367.77',2,1,'2023-02-18 14:55:17','2023-02-18 14:55:17');

/*Table structure for table `token` */

DROP TABLE IF EXISTS `token`;

CREATE TABLE `token` (
  `id` bigint(20) NOT NULL AUTO_INCREMENT COMMENT '主键',
  `userid` bigint(20) NOT NULL COMMENT '用户id',
  `username` varchar(100) NOT NULL COMMENT '用户名',
  `tablename` varchar(100) DEFAULT NULL COMMENT '表名',
  `role` varchar(100) DEFAULT NULL COMMENT '角色',
  `token` varchar(200) NOT NULL COMMENT '密码',
  `addtime` timestamp NOT NULL DEFAULT CURRENT_TIMESTAMP COMMENT '新增时间',
  `expiratedtime` timestamp NOT NULL DEFAULT CURRENT_TIMESTAMP COMMENT '过期时间',
  PRIMARY KEY (`id`)
) ENGINE=InnoDB AUTO_INCREMENT=8 DEFAULT CHARSET=utf8 COMMENT='token表';

/*Data for the table `token` */

insert  into `token`(`id`,`userid`,`username`,`tablename`,`role`,`token`,`addtime`,`expiratedtime`) values (4,1,'a1','yonghu','用户','z4rryx9sym073tz153ngrzjkpyp9a5p5','2023-02-18 14:39:07','2023-02-18 15:54:05'),(5,1,'a1','shangjia','商家','hdvc2f32jhooiy1iiewp0t4he51x9rt1','2023-02-18 14:55:32','2023-02-18 15:55:32'),(6,2,'a2','shangjia','商家','5mzf4bu69maupgpmo2r6izz324tvetqi','2023-02-18 14:55:46','2023-02-18 15:55:46'),(7,1,'admin','users','管理员','mjz54vcqra54yhrozwl6095jozm14jcx','2023-02-18 14:56:05','2023-02-18 16:00:12');

/*Table structure for table `users` */

DROP TABLE IF EXISTS `users`;

CREATE TABLE `users` (
  `id` bigint(20) NOT NULL AUTO_INCREMENT COMMENT '主键',
  `username` varchar(100) NOT NULL COMMENT '用户名',
  `password` varchar(100) NOT NULL COMMENT '密码',
  `role` varchar(100) DEFAULT '管理员' COMMENT '角色',
  `addtime` timestamp NOT NULL DEFAULT CURRENT_TIMESTAMP COMMENT '新增时间',
  PRIMARY KEY (`id`)
) ENGINE=InnoDB AUTO_INCREMENT=2 DEFAULT CHARSET=utf8 COMMENT='管理员';

/*Data for the table `users` */

insert  into `users`(`id`,`username`,`password`,`role`,`addtime`) values (1,'admin','admin','管理员','2023-02-18 14:13:20');

/*Table structure for table `yonghu` */

DROP TABLE IF EXISTS `yonghu`;

CREATE TABLE `yonghu` (
  `id` int(11) NOT NULL AUTO_INCREMENT COMMENT '主键',
  `username` varchar(200) DEFAULT NULL COMMENT '账户',
  `password` varchar(200) DEFAULT NULL COMMENT '密码',
  `yonghu_name` varchar(200) DEFAULT NULL COMMENT '用户姓名 Search111 ',
  `yonghu_phone` varchar(200) DEFAULT NULL COMMENT '联系方式',
  `yonghu_id_number` varchar(200) DEFAULT NULL COMMENT '身份证号',
  `yonghu_photo` varchar(200) DEFAULT NULL COMMENT '用户头像',
  `sex_types` int(11) DEFAULT NULL COMMENT '性别',
  `yonghu_email` varchar(200) DEFAULT NULL COMMENT '电子邮箱',
  `new_money` decimal(10,2) DEFAULT NULL COMMENT '余额 ',
  `create_time` timestamp NULL DEFAULT NULL COMMENT '创建时间',
  PRIMARY KEY (`id`)
) ENGINE=InnoDB AUTO_INCREMENT=4 DEFAULT CHARSET=utf8 COMMENT='用户';

/*Data for the table `yonghu` */

insert  into `yonghu`(`id`,`username`,`password`,`yonghu_name`,`yonghu_phone`,`yonghu_id_number`,`yonghu_photo`,`sex_types`,`yonghu_email`,`new_money`,`create_time`) values (1,'a1','123456','用户姓名1','17703786901','410224199010102001','upload/yonghu1.jpg',2,'1@qq.com','99388.21','2023-02-18 14:14:35'),(2,'a2','123456','用户姓名2','17703786902','410224199010102002','upload/yonghu2.jpg',2,'2@qq.com','110.32','2023-02-18 14:14:35'),(3,'a3','123456','用户姓名3','17703786903','410224199010102003','upload/yonghu3.jpg',1,'3@qq.com','271.95','2023-02-18 14:14:35');

/*!40101 SET SQL_MODE=@OLD_SQL_MODE */;
/*!40014 SET FOREIGN_KEY_CHECKS=@OLD_FOREIGN_KEY_CHECKS */;
/*!40014 SET UNIQUE_CHECKS=@OLD_UNIQUE_CHECKS */;
/*!40111 SET SQL_NOTES=@OLD_SQL_NOTES */;

5、关键代码

5.1 闲置物品Controller模块?

/**
 * 闲置物品
 * 后端接口
 * @author 学长编程
 * @email
 * WeChat jsjbysj88
*/
@RestController
@Controller
@RequestMapping("/shangpin")
public class ShangpinController {
    private static final Logger logger = LoggerFactory.getLogger(ShangpinController.class);

    private static final String TABLE_NAME = "shangpin";

    @Autowired
    private ShangpinService shangpinService;

    @Autowired
    private TokenService tokenService;
    @Autowired
    private DictionaryService dictionaryService;

    @Autowired
    private ShangpinOrderService shangpinOrderService;
    //级联表非注册的service
    //注册表service
    @Autowired
    private YonghuService yonghuService;
    @Autowired
    private ShangjiaService shangjiaService;


    /**
    * 后端列表
    */
    @RequestMapping("/page")
    public R page(@RequestParam Map<String, Object> params, HttpServletRequest request){
        logger.debug("page方法:,,Controller:{},,params:{}",this.getClass().getName(),JSONObject.toJSONString(params));
        String role = String.valueOf(request.getSession().getAttribute("role"));
        if(false)
            return R.error(511,"永不会进入");
        else if("用户".equals(role))
            params.put("yonghuId",request.getSession().getAttribute("userId"));
        else if("商家".equals(role))
            params.put("shangjiaId",request.getSession().getAttribute("userId"));
        params.put("shangpinDeleteStart",1);params.put("shangpinDeleteEnd",1);
        CommonUtil.checkMap(params);
        PageUtils page = shangpinService.queryPage(params);

        //字典表数据转换
        List<ShangpinView> list =(List<ShangpinView>)page.getList();
        for(ShangpinView c:list){
            //修改对应字典表字段
            dictionaryService.dictionaryConvert(c, request);
        }
        return R.ok().put("data", page);
    }

    /**
    * 后端详情
    */
    @RequestMapping("/info/{id}")
    public R info(@PathVariable("id") Long id, HttpServletRequest request){
        logger.debug("info方法:,,Controller:{},,id:{}",this.getClass().getName(),id);
        ShangpinEntity shangpin = shangpinService.selectById(id);
        if(shangpin !=null){
            //entity转view
            ShangpinView view = new ShangpinView();
            BeanUtils.copyProperties( shangpin , view );//把实体数据重构到view中
            //级联表 商家
            //级联表
            ShangjiaEntity shangjia = shangjiaService.selectById(shangpin.getShangjiaId());
            if(shangjia != null){
            BeanUtils.copyProperties( shangjia , view ,new String[]{ "id", "createTime", "insertTime", "updateTime", "shangjiaId"});//把级联的数据添加到view中,并排除id和创建时间字段,当前表的级联注册表
            view.setShangjiaId(shangjia.getId());
            }
            //修改对应字典表字段
            dictionaryService.dictionaryConvert(view, request);
            return R.ok().put("data", view);
        }else {
            return R.error(511,"查不到数据");
        }

    }

    /**
    * 后端保存
    */
    @RequestMapping("/save")
    public R save(@RequestBody ShangpinEntity shangpin, HttpServletRequest request){
        logger.debug("save方法:,,Controller:{},,shangpin:{}",this.getClass().getName(),shangpin.toString());

        String role = String.valueOf(request.getSession().getAttribute("role"));
        if(false)
            return R.error(511,"永远不会进入");
        else if("商家".equals(role))
            shangpin.setShangjiaId(Integer.valueOf(String.valueOf(request.getSession().getAttribute("userId"))));

        Wrapper<ShangpinEntity> queryWrapper = new EntityWrapper<ShangpinEntity>()
            .eq("shangjia_id", shangpin.getShangjiaId())
            .eq("shangpin_name", shangpin.getShangpinName())
            .eq("shangpin_types", shangpin.getShangpinTypes())
            .eq("shangpin_kucun_number", shangpin.getShangpinKucunNumber())
            .eq("shangpin_clicknum", shangpin.getShangpinClicknum())
            .eq("shangxia_types", shangpin.getShangxiaTypes())
            .eq("shangpin_delete", shangpin.getShangpinDelete())
            ;

        logger.info("sql语句:"+queryWrapper.getSqlSegment());
        ShangpinEntity shangpinEntity = shangpinService.selectOne(queryWrapper);
        if(shangpinEntity==null){
            shangpin.setShangpinClicknum(1);
            shangpin.setShangxiaTypes(1);
            shangpin.setShangpinDelete(1);
            shangpin.setCreateTime(new Date());
            shangpinService.insert(shangpin);
            return R.ok();
        }else {
            return R.error(511,"表中有相同数据");
        }
    }

    /**
    * 后端修改
    */
    @RequestMapping("/update")
    public R update(@RequestBody ShangpinEntity shangpin, HttpServletRequest request) throws NoSuchFieldException, ClassNotFoundException, IllegalAccessException, InstantiationException {
        logger.debug("update方法:,,Controller:{},,shangpin:{}",this.getClass().getName(),shangpin.toString());
        ShangpinEntity oldShangpinEntity = shangpinService.selectById(shangpin.getId());//查询原先数据

        String role = String.valueOf(request.getSession().getAttribute("role"));
//        if(false)
//            return R.error(511,"永远不会进入");
//        else if("商家".equals(role))
//            shangpin.setShangjiaId(Integer.valueOf(String.valueOf(request.getSession().getAttribute("userId"))));
        //根据字段查询是否有相同数据
        Wrapper<ShangpinEntity> queryWrapper = new EntityWrapper<ShangpinEntity>()
            .notIn("id",shangpin.getId())
            .andNew()
            .eq("shangjia_id", shangpin.getShangjiaId())
            .eq("shangpin_name", shangpin.getShangpinName())
            .eq("shangpin_types", shangpin.getShangpinTypes())
            .eq("shangpin_kucun_number", shangpin.getShangpinKucunNumber())
            .eq("shangpin_clicknum", shangpin.getShangpinClicknum())
            .eq("shangxia_types", shangpin.getShangxiaTypes())
            .eq("shangpin_delete", shangpin.getShangpinDelete())
            ;

        logger.info("sql语句:"+queryWrapper.getSqlSegment());
        ShangpinEntity shangpinEntity = shangpinService.selectOne(queryWrapper);
        if("".equals(shangpin.getShangpinPhoto()) || "null".equals(shangpin.getShangpinPhoto())){
                shangpin.setShangpinPhoto(null);
        }
        if(shangpinEntity==null){
            shangpinService.updateById(shangpin);//根据id更新
            return R.ok();
        }else {
            return R.error(511,"表中有相同数据");
        }
    }


    /**
    * 删除
    */
    @RequestMapping("/delete")
    public R delete(@RequestBody Integer[] ids, HttpServletRequest request){
        logger.debug("delete:,,Controller:{},,ids:{}",this.getClass().getName(),ids.toString());
        List<ShangpinEntity> oldShangpinList =shangpinService.selectBatchIds(Arrays.asList(ids));//要删除的数据
        ArrayList<ShangpinEntity> list = new ArrayList<>();
        for(Integer id:ids){
            ShangpinEntity shangpinEntity = new ShangpinEntity();
            shangpinEntity.setId(id);
            shangpinEntity.setShangpinDelete(2);
            list.add(shangpinEntity);
        }
        if(list != null && list.size() >0){
            shangpinService.updateBatchById(list);
        }

        return R.ok();
    }


    /**
     * 批量上传
     */
    @RequestMapping("/batchInsert")
    public R save( String fileName, HttpServletRequest request){
        logger.debug("batchInsert方法:,,Controller:{},,fileName:{}",this.getClass().getName(),fileName);
        Integer yonghuId = Integer.valueOf(String.valueOf(request.getSession().getAttribute("userId")));
        SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
        try {
            List<ShangpinEntity> shangpinList = new ArrayList<>();//上传的东西
            Map<String, List<String>> seachFields= new HashMap<>();//要查询的字段
            Date date = new Date();
            int lastIndexOf = fileName.lastIndexOf(".");
            if(lastIndexOf == -1){
                return R.error(511,"该文件没有后缀");
            }else{
                String suffix = fileName.substring(lastIndexOf);
                if(!".xls".equals(suffix)){
                    return R.error(511,"只支持后缀为xls的excel文件");
                }else{
                    URL resource = this.getClass().getClassLoader().getResource("static/upload/" + fileName);//获取文件路径
                    File file = new File(resource.getFile());
                    if(!file.exists()){
                        return R.error(511,"找不到上传文件，请联系管理员");
                    }else{
                        List<List<String>> dataList = PoiUtil.poiImport(file.getPath());//读取xls文件
                        dataList.remove(0);//删除第一行，因为第一行是提示
                        for(List<String> data:dataList){
                            //循环
                            ShangpinEntity shangpinEntity = new ShangpinEntity();
//                            shangpinEntity.setShangjiaId(Integer.valueOf(data.get(0)));   //商家 要改的
//                            shangpinEntity.setShangpinName(data.get(0));                    //闲置物品名称 要改的
//                            shangpinEntity.setShangpinPhoto("");//详情和图片
//                            shangpinEntity.setShangpinTypes(Integer.valueOf(data.get(0)));   //闲置物品类型 要改的
//                            shangpinEntity.setShangpinKucunNumber(Integer.valueOf(data.get(0)));   //闲置物品库存 要改的
//                            shangpinEntity.setShangpinOldMoney(data.get(0));                    //原价 要改的
//                            shangpinEntity.setShangpinNewMoney(data.get(0));                    //现价 要改的
//                            shangpinEntity.setShangpinClicknum(Integer.valueOf(data.get(0)));   //点击次数 要改的
//                            shangpinEntity.setShangxiaTypes(Integer.valueOf(data.get(0)));   //是否上架 要改的
//                            shangpinEntity.setShangpinDelete(1);//逻辑删除字段
//                            shangpinEntity.setShangpinContent("");//详情和图片
//                            shangpinEntity.setCreateTime(date);//时间
                            shangpinList.add(shangpinEntity);


                            //把要查询是否重复的字段放入map中
                        }

                        //查询是否重复
                        shangpinService.insertBatch(shangpinList);
                        return R.ok();
                    }
                }
            }
        }catch (Exception e){
            e.printStackTrace();
            return R.error(511,"批量插入数据异常，请联系管理员");
        }
    }


    /**
    * 个性推荐
    */
    @IgnoreAuth
    @RequestMapping("/gexingtuijian")
    public R gexingtuijian(@RequestParam Map<String, Object> params, HttpServletRequest request){
        logger.debug("gexingtuijian方法:,,Controller:{},,params:{}",this.getClass().getName(),JSONObject.toJSONString(params));
        CommonUtil.checkMap(params);
        List<ShangpinView> returnShangpinViewList = new ArrayList<>();

        //查询订单
        Map<String, Object> params1 = new HashMap<>(params);params1.put("sort","id");params1.put("yonghuId",request.getSession().getAttribute("userId"));
        PageUtils pageUtils = shangpinOrderService.queryPage(params1);
        List<ShangpinOrderView> orderViewsList =(List<ShangpinOrderView>)pageUtils.getList();
        Map<Integer,Integer> typeMap=new HashMap<>();//购买的类型list
        for(ShangpinOrderView orderView:orderViewsList){
            Integer shangpinTypes = orderView.getShangpinTypes();
            if(typeMap.containsKey(shangpinTypes)){
                typeMap.put(shangpinTypes,typeMap.get(shangpinTypes)+1);
            }else{
                typeMap.put(shangpinTypes,1);
            }
        }
        List<Integer> typeList = new ArrayList<>();//排序后的有序的类型 按最多到最少
        typeMap.entrySet().stream().sorted((o1, o2) -> o2.getValue() - o1.getValue()).forEach(e -> typeList.add(e.getKey()));//排序
        Integer limit = Integer.valueOf(String.valueOf(params.get("limit")));
        for(Integer type:typeList){
            Map<String, Object> params2 = new HashMap<>(params);params2.put("shangpinTypes",type);
            PageUtils pageUtils1 = shangpinService.queryPage(params2);
            List<ShangpinView> shangpinViewList =(List<ShangpinView>)pageUtils1.getList();
            returnShangpinViewList.addAll(shangpinViewList);
            if(returnShangpinViewList.size()>= limit) break;//返回的推荐数量大于要的数量 跳出循环
        }
        //正常查询出来商品,用于补全推荐缺少的数据
        PageUtils page = shangpinService.queryPage(params);
        if(returnShangpinViewList.size()<limit){//返回数量还是小于要求数量
            int toAddNum = limit - returnShangpinViewList.size();//要添加的数量
            List<ShangpinView> shangpinViewList =(List<ShangpinView>)page.getList();
            for(ShangpinView shangpinView:shangpinViewList){
                Boolean addFlag = true;
                for(ShangpinView returnShangpinView:returnShangpinViewList){
                    if(returnShangpinView.getId().intValue() ==shangpinView.getId().intValue()) addFlag=false;//返回的数据中已存在此商品
                }
                if(addFlag){
                    toAddNum=toAddNum-1;
                    returnShangpinViewList.add(shangpinView);
                    if(toAddNum==0) break;//够数量了
                }
            }
        }else {
            returnShangpinViewList = returnShangpinViewList.subList(0, limit);
        }

        for(ShangpinView c:returnShangpinViewList)
            dictionaryService.dictionaryConvert(c, request);
        page.setList(returnShangpinViewList);
        return R.ok().put("data", page);
    }

    /**
    * 前端列表
    */
    @IgnoreAuth
    @RequestMapping("/list")
    public R list(@RequestParam Map<String, Object> params, HttpServletRequest request){
        logger.debug("list方法:,,Controller:{},,params:{}",this.getClass().getName(),JSONObject.toJSONString(params));

        CommonUtil.checkMap(params);
        PageUtils page = shangpinService.queryPage(params);

        //字典表数据转换
        List<ShangpinView> list =(List<ShangpinView>)page.getList();
        for(ShangpinView c:list)
            dictionaryService.dictionaryConvert(c, request); //修改对应字典表字段

        return R.ok().put("data", page);
    }

    /**
    * 前端详情
    */
    @RequestMapping("/detail/{id}")
    public R detail(@PathVariable("id") Long id, HttpServletRequest request){
        logger.debug("detail方法:,,Controller:{},,id:{}",this.getClass().getName(),id);
        ShangpinEntity shangpin = shangpinService.selectById(id);
            if(shangpin !=null){

                //点击数量加1
                shangpin.setShangpinClicknum(shangpin.getShangpinClicknum()+1);
                shangpinService.updateById(shangpin);

                //entity转view
                ShangpinView view = new ShangpinView();
                BeanUtils.copyProperties( shangpin , view );//把实体数据重构到view中

                //级联表
                    ShangjiaEntity shangjia = shangjiaService.selectById(shangpin.getShangjiaId());
                if(shangjia != null){
                    BeanUtils.copyProperties( shangjia , view ,new String[]{ "id", "createDate"});//把级联的数据添加到view中,并排除id和创建时间字段
                    view.setShangjiaId(shangjia.getId());
                }
                //修改对应字典表字段
                dictionaryService.dictionaryConvert(view, request);
                return R.ok().put("data", view);
            }else {
                return R.error(511,"查不到数据");
            }
    }


    /**
    * 前端保存
    */
    @RequestMapping("/add")
    public R add(@RequestBody ShangpinEntity shangpin, HttpServletRequest request){
        logger.debug("add方法:,,Controller:{},,shangpin:{}",this.getClass().getName(),shangpin.toString());
        Wrapper<ShangpinEntity> queryWrapper = new EntityWrapper<ShangpinEntity>()
            .eq("shangjia_id", shangpin.getShangjiaId())
            .eq("shangpin_name", shangpin.getShangpinName())
            .eq("shangpin_types", shangpin.getShangpinTypes())
            .eq("shangpin_kucun_number", shangpin.getShangpinKucunNumber())
            .eq("shangpin_clicknum", shangpin.getShangpinClicknum())
            .eq("shangxia_types", shangpin.getShangxiaTypes())
            .eq("shangpin_delete", shangpin.getShangpinDelete())
            ;
        logger.info("sql语句:"+queryWrapper.getSqlSegment());
        ShangpinEntity shangpinEntity = shangpinService.selectOne(queryWrapper);
        if(shangpinEntity==null){
            shangpin.setShangpinDelete(1);
            shangpin.setCreateTime(new Date());
        shangpinService.insert(shangpin);

            return R.ok();
        }else {
            return R.error(511,"表中有相同数据");
        }
    }

}

5.2 闲置物品Service模块?

package com.service;

import com.baomidou.mybatisplus.service.IService;
import com.utils.PageUtils;
import com.entity.ShangpinEntity;
import java.util.Map;
import javax.servlet.http.HttpServletRequest;
import org.springframework.lang.Nullable;
import java.util.List;

/**
 * 闲置物品 服务类
 */
public interface ShangpinService extends IService<ShangpinEntity> {

    /**
    * @param params 查询参数
    * @return 带分页的查询出来的数据
    */
     PageUtils queryPage(Map<String, Object> params);

}

5.3 闲置物品ServiceImpl模块

package com.service.impl;

import com.utils.StringUtil;
import com.service.DictionaryService;
import com.utils.ClazzDiff;
import org.springframework.beans.BeanUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import java.lang.reflect.Field;
import java.util.*;
import com.baomidou.mybatisplus.plugins.Page;
import com.baomidou.mybatisplus.service.impl.ServiceImpl;
import org.springframework.transaction.annotation.Transactional;
import com.utils.PageUtils;
import com.utils.Query;
import org.springframework.web.context.ContextLoader;
import javax.servlet.ServletContext;
import javax.servlet.http.HttpServletRequest;
import org.springframework.lang.Nullable;
import org.springframework.util.Assert;
import com.dao.ShangpinDao;
import com.entity.ShangpinEntity;
import com.service.ShangpinService;
import com.entity.view.ShangpinView;

/**
 * 闲置物品 服务实现类
 */
@Service("shangpinService")
@Transactional
public class ShangpinServiceImpl extends ServiceImpl<ShangpinDao, ShangpinEntity> implements ShangpinService {

    @Override
    public PageUtils queryPage(Map<String,Object> params) {
        Page<ShangpinView> page =new Query<ShangpinView>(params).getPage();
        page.setRecords(baseMapper.selectListView(page,params));
        return new PageUtils(page);
    }

}

5.4?闲置物品Dao模块

package com.dao;

import com.entity.ShangpinEntity;
import com.baomidou.mybatisplus.mapper.BaseMapper;
import java.util.List;
import java.util.Map;
import com.baomidou.mybatisplus.plugins.pagination.Pagination;

import org.apache.ibatis.annotations.Param;
import com.entity.view.ShangpinView;

/**
 * 闲置物品 Dao 接口
 *
 * @author 
 */
public interface ShangpinDao extends BaseMapper<ShangpinEntity> {

   List<ShangpinView> selectListView(Pagination page,@Param("params")Map<String,Object> params);

}

6、论文目录结构

7、源码获取

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计算机毕业设计 基于SpringBoot的校园闲置物品交易系统的设计与实现 Java实战项目 附源码+文档+视频讲解

1、项目介绍及开发技术

1.1 项目介绍

1.2 开发技术

2、系统功能设计结构图

3、功能截图

4、数据库表结构设计

5、关键代码

5.1 闲置物品Controller模块?

5.2 闲置物品Service模块?

5.3 闲置物品ServiceImpl模块

5.4?闲置物品Dao模块

6、论文目录结构

7、源码获取

计算机毕业设计基于SpringBoot的校园闲置物品交易系统的设计与实现 Java实战项目附源码+文档+视频讲解