Java项目：springBoot+Mysql实现的校园二手在线交易平台系统

作者主页：夜未央5788

简介：Java领域优质创作者、Java项目、学习资料、技术互助

文末获取源码

项目介绍

本项目分为管理员与普通用户两种角色

后台管理员功能：

求购管理，收购管理，学生管理，评论管理，建议管理，新闻公告，网站设置，订单管理，图书管理。
1.求购管理实现了查看前台用户发布的求购信息和删除功能
2.收购管理实现了学生发布的二手书籍商品的查看和收购
3.学生管理实现了前台用户信息的查看和账号冻结功能
4.评论管理实现了对发布的图书的留言评论信息的查看和删除功能
5.建议管理实现了用户对发布的二手书籍的建议查看和删除
6.新闻公告实现了新闻公告的发布的增删改查，在前台首页显示
7.网站设置分为友情链接和站点设置
A、友情链接实现了前台下面的友情网站的增删改查，（比如发布一个网址）
B、站点设置实现了前台显示logo和网站名称的增删改查
8.订单管理实现了用户购买的订单信息的查看
9.图书管理实现了分类列表和图书列表
A、分类列表实现书籍分类的增删改查（二级分类）

B、图书列表实现了被收购的二手书籍在这里进行编辑，上架下架，是否进行推荐（上架后，用户可以进行购买）

前台用户功能：

注册登录，个人信息的管理，我发布的出售书籍，我发布的求购书籍管理，我建议的书籍，查看书籍订单，求购专区查看等等功能。
1.个人信息实现了个人信息的管理和密码修改
2.我发布的出售书籍实现了可以对出售的书籍进行增删改查（被官网收购后只能查看）
3.我发布的求购书籍实现了可以对求购书籍进行增删改查
4.我建议的书籍实现了对某个上架的书籍的建议查看
5.查看书籍订单实现了查看购买的书籍
6.求购专区实现了查看全部求购信息
7.前台书籍信息的查看，新闻公告的查看等等功能

使用人群：
正在做毕设的学生，或者需要项目实战练习的Java学习者

由于本程序规模不大，可供课程设计，毕业设计学习演示之用

环境需要

1.运行环境：最好是java jdk 1.8，我们在这个平台上运行的。其他版本理论上也可以。
2.IDE环境：IDEA，Eclipse,Myeclipse都可以。推荐IDEA;
3.tomcat环境：Tomcat 7.x,8.x,9.x版本均可
4.硬件环境：windows 7/8/10 1G内存以上；或者 Mac OS；
5.数据库：MySql 8.0/5.7版本；

6.是否Maven项目：是；

技术栈

SpringBoot+springJpa+freemarker+CSS+JavaScript+mysql

使用说明

1. 使用Navicat或者其它工具，在mysql中创建对应名称的数据库，并导入项目的sql文件；
2. 使用IDEA/Eclipse/MyEclipse导入项目，导入成功后请执行maven clean;maven install命令，然后运行；
3. 将项目中application-dev.properties配置文件中的数据库配置改为自己的配置;
4. 运行项目，前台地址：在浏览器中输入http://localhost:8081/home/index/index 访问
管理员账号密码：admin/123456

后台地址：http://localhost:8081/system/login

普通用户账号密码：111/111

运行截图

前台界面

管理员界面

相关代码

HomeStudentController

package com.yuanlrc.campus_market.controller.home;import java.util.HashMap;
import java.util.List;
import java.util.Map;import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.ui.Model;
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 com.yuanlrc.campus_market.bean.CodeMsg;
import com.yuanlrc.campus_market.bean.Result;
import com.yuanlrc.campus_market.constant.SessionConstant;
import com.yuanlrc.campus_market.entity.common.Comment;
import com.yuanlrc.campus_market.entity.common.Goods;
import com.yuanlrc.campus_market.entity.common.ReportGoods;
import com.yuanlrc.campus_market.entity.common.Student;
import com.yuanlrc.campus_market.entity.common.WantedGoods;
import com.yuanlrc.campus_market.service.common.CommentService;
import com.yuanlrc.campus_market.service.common.GoodsCategoryService;
import com.yuanlrc.campus_market.service.common.GoodsService;
import com.yuanlrc.campus_market.service.common.ReportGoodsService;
import com.yuanlrc.campus_market.service.common.StudentService;
import com.yuanlrc.campus_market.service.common.WantedGoodsService;
import com.yuanlrc.campus_market.util.SessionUtil;
import com.yuanlrc.campus_market.util.ValidateEntityUtil;/*** 学生中心控制器* @author Administrator**/
@RequestMapping("/home/student")
@Controller
public class HomeStudentController {@Autowiredprivate GoodsCategoryService goodsCategoryService;@Autowiredprivate StudentService studentService;@Autowiredprivate GoodsService goodsService;@Autowiredprivate WantedGoodsService wantedGoodsService;@Autowiredprivate ReportGoodsService reportGoodsService;@Autowiredprivate CommentService commentService;/*** 学生登录主页* @param model* @return*/@RequestMapping(value="/index",method=RequestMethod.GET)public String index(Model model){Student loginedStudent = (Student)SessionUtil.get(SessionConstant.SESSION_STUDENT_LOGIN_KEY);model.addAttribute("goodsList", goodsService.findByStudent(loginedStudent));model.addAttribute("wantedGoodsList", wantedGoodsService.findByStudent(loginedStudent));model.addAttribute("reportGoodsList", reportGoodsService.findByStudent(loginedStudent));return "home/student/index";}/*** 修改个人信息提交表单* @param student* @return*/@RequestMapping(value="/edit_info",method=RequestMethod.POST)@ResponseBodypublic Result<Boolean> editInfo(Student student){Student loginedStudent = (Student)SessionUtil.get(SessionConstant.SESSION_STUDENT_LOGIN_KEY);loginedStudent.setAcademy(student.getAcademy());loginedStudent.setGrade(student.getGrade());loginedStudent.setMobile(student.getMobile());loginedStudent.setNickname(student.getNickname());loginedStudent.setQq(student.getQq());loginedStudent.setSchool(student.getSchool());if(studentService.save(loginedStudent) == null){return Result.error(CodeMsg.HOME_STUDENT_EDITINFO_ERROR);}SessionUtil.set(SessionConstant.SESSION_STUDENT_LOGIN_KEY,loginedStudent);return Result.success(true);}/*** 保存用户头像* @param headPic* @return*/@RequestMapping(value="/update_head_pic",method=RequestMethod.POST)@ResponseBodypublic Result<Boolean> updateHeadPic(@RequestParam(name="headPic",required=true)String headPic){Student loginedStudent = (Student)SessionUtil.get(SessionConstant.SESSION_STUDENT_LOGIN_KEY);loginedStudent.setHeadPic(headPic);;if(studentService.save(loginedStudent) == null){return Result.error(CodeMsg.HOME_STUDENT_EDITINFO_ERROR);}SessionUtil.set(SessionConstant.SESSION_STUDENT_LOGIN_KEY,loginedStudent);return Result.success(true);}/*** 物品发布页面* @param model* @return*/@RequestMapping(value="/publish",method=RequestMethod.GET)public String publish(Model model){return "home/student/publish";}/*** 商品发布表单提交* @param goods* @return*/@RequestMapping(value="/publish",method=RequestMethod.POST)@ResponseBodypublic Result<Boolean> publish(Goods goods){CodeMsg validate = ValidateEntityUtil.validate(goods);if(validate.getCode() != CodeMsg.SUCCESS.getCode()){return Result.error(validate);}if(goods.getGoodsCategory() == null || goods.getGoodsCategory().getId() == null || goods.getGoodsCategory().getId().longValue() == -1){return Result.error(CodeMsg.HOME_STUDENT_PUBLISH_CATEGORY_EMPTY);}Student loginedStudent = (Student)SessionUtil.get(SessionConstant.SESSION_STUDENT_LOGIN_KEY);goods.setStudent(loginedStudent);if(goodsService.save(goods) == null){return Result.error(CodeMsg.HOME_STUDENT_PUBLISH_ERROR);}return Result.success(true);}/*** 物品编辑页面* @param id* @param model* @return*/@RequestMapping(value="/edit_goods",method=RequestMethod.GET)public String publish(@RequestParam(name="id",required=true)Long id,Model model){Student loginedStudent = (Student)SessionUtil.get(SessionConstant.SESSION_STUDENT_LOGIN_KEY);Goods goods = goodsService.find(id, loginedStudent.getId());if(goods == null){model.addAttribute("msg", "物品不存在！");return "error/runtime_error";}model.addAttribute("goods", goods);return "home/student/edit_goods";}/*** 物品编辑表单提交* @param goods* @return*/@RequestMapping(value="/edit_goods",method=RequestMethod.POST)@ResponseBodypublic Result<Boolean> editGoods(Goods goods){CodeMsg validate = ValidateEntityUtil.validate(goods);if(validate.getCode() != CodeMsg.SUCCESS.getCode()){return Result.error(validate);}if(goods.getGoodsCategory() == null || goods.getGoodsCategory().getId() == null || goods.getGoodsCategory().getId().longValue() == -1){return Result.error(CodeMsg.HOME_STUDENT_PUBLISH_CATEGORY_EMPTY);}Student loginedStudent = (Student)SessionUtil.get(SessionConstant.SESSION_STUDENT_LOGIN_KEY);Goods existGoods = goodsService.find(goods.getId(), loginedStudent.getId());if(existGoods == null){return Result.error(CodeMsg.HOME_STUDENT_GOODS_NO_EXIST);}existGoods.setBuyPrice(goods.getBuyPrice());existGoods.setContent(goods.getContent());existGoods.setGoodsCategory(goods.getGoodsCategory());existGoods.setName(goods.getName());existGoods.setPhoto(goods.getPhoto());existGoods.setSellPrice(goods.getSellPrice());if(goodsService.save(existGoods) == null){return Result.error(CodeMsg.HOME_STUDENT_GOODS_EDIT_ERROR);}return Result.success(true);}/*** 用户设置是否擦亮物品* @param id* @param flag* @return*/@RequestMapping(value="/update_flag",method=RequestMethod.POST)@ResponseBodypublic Result<Boolean> updateFlag(@RequestParam(name="id",required=true)Long id,@RequestParam(name="flag",required=true,defaultValue="0")Integer flag){Student loginedStudent = (Student)SessionUtil.get(SessionConstant.SESSION_STUDENT_LOGIN_KEY);Goods existGoods = goodsService.find(id, loginedStudent.getId());if(existGoods == null){return Result.error(CodeMsg.HOME_STUDENT_GOODS_NO_EXIST);}existGoods.setFlag(flag);if(goodsService.save(existGoods) == null){return Result.error(CodeMsg.HOME_STUDENT_GOODS_EDIT_ERROR);}return Result.success(true);}/*** 修改物品状态* @param id* @param status* @return*/@RequestMapping(value="/update_status",method=RequestMethod.POST)@ResponseBodypublic Result<Boolean> updateStatus(@RequestParam(name="id",required=true)Long id,@RequestParam(name="status",required=true,defaultValue="2")Integer status){Student loginedStudent = (Student)SessionUtil.get(SessionConstant.SESSION_STUDENT_LOGIN_KEY);Goods existGoods = goodsService.find(id, loginedStudent.getId());if(existGoods == null){return Result.error(CodeMsg.HOME_STUDENT_GOODS_NO_EXIST);}existGoods.setStatus(status);if(goodsService.save(existGoods) == null){return Result.error(CodeMsg.HOME_STUDENT_GOODS_EDIT_ERROR);}return Result.success(true);}/*** 发布求购物品页面* @param model* @return*/@RequestMapping(value="/publish_wanted",method=RequestMethod.GET)public String publishWanted(Model model){return "home/student/publish_wanted";}/*** 求购物品发布提交* @param wantedGoods* @return*/@RequestMapping(value="/publish_wanted",method=RequestMethod.POST)@ResponseBodypublic Result<Boolean> publishWanted(WantedGoods wantedGoods){CodeMsg validate = ValidateEntityUtil.validate(wantedGoods);if(validate.getCode() != CodeMsg.SUCCESS.getCode()){return Result.error(validate);}Student loginedStudent = (Student)SessionUtil.get(SessionConstant.SESSION_STUDENT_LOGIN_KEY);wantedGoods.setStudent(loginedStudent);if(wantedGoodsService.save(wantedGoods) == null){return Result.error(CodeMsg.HOME_STUDENT_PUBLISH_ERROR);}return Result.success(true);}/*** 编辑求购物品页面* @param id* @param model* @return*/@RequestMapping(value="/edit_wanted_goods",method=RequestMethod.GET)public String editWantedGoods(@RequestParam(name="id",required=true)Long id,Model model){WantedGoods wantedGoods = wantedGoodsService.find(id);if(wantedGoods == null){model.addAttribute("msg", "求购物品不存在！");return "error/runtime_error";}model.addAttribute("wantedGoods", wantedGoods);return "home/student/edit_wanted";}/*** 编辑求购信息表单提交* @param wantedGoods* @return*/@RequestMapping(value="/edit_wanted_goods",method=RequestMethod.POST)@ResponseBodypublic Result<Boolean> editWantedGoods(WantedGoods wantedGoods){CodeMsg validate = ValidateEntityUtil.validate(wantedGoods);if(validate.getCode() != CodeMsg.SUCCESS.getCode()){return Result.error(validate);}if(wantedGoods.getId() == null){return Result.error(CodeMsg.HOME_STUDENT_GOODS_NO_EXIST);}WantedGoods existWantedGoods = wantedGoodsService.find(wantedGoods.getId());if(existWantedGoods == null){return Result.error(CodeMsg.HOME_STUDENT_GOODS_NO_EXIST);}Student loginedStudent = (Student)SessionUtil.get(SessionConstant.SESSION_STUDENT_LOGIN_KEY);if(existWantedGoods.getStudent().getId().longValue() != loginedStudent.getId().longValue()){return Result.error(CodeMsg.HOME_STUDENT_GOODS_NO_EXIST);}existWantedGoods.setContent(wantedGoods.getContent());existWantedGoods.setName(wantedGoods.getName());existWantedGoods.setSellPrice(wantedGoods.getSellPrice());existWantedGoods.setTradePlace(wantedGoods.getTradePlace());if(wantedGoodsService.save(existWantedGoods) == null){return Result.error(CodeMsg.HOME_STUDENT_PUBLISH_ERROR);}return Result.success(true);}/*** 删除求购物品* @param id* @return*/@RequestMapping(value="/delete_wanted",method=RequestMethod.POST)@ResponseBodypublic Result<Boolean> deleteWanted(@RequestParam(name="id",required=true)Long id){WantedGoods wantedGoods = wantedGoodsService.find(id);if(wantedGoods == null){return Result.error(CodeMsg.HOME_STUDENT_GOODS_NO_EXIST);}Student loginedStudent = (Student)SessionUtil.get(SessionConstant.SESSION_STUDENT_LOGIN_KEY);if(wantedGoods.getStudent().getId().longValue() != loginedStudent.getId().longValue()){return Result.error(CodeMsg.HOME_STUDENT_GOODS_NO_EXIST);}wantedGoodsService.delete(id);return Result.success(true);}/*** 举报物品* @param reportGoods* @return*/@RequestMapping(value="/report_goods",method=RequestMethod.POST)@ResponseBodypublic Result<Boolean> reportGoods(ReportGoods reportGoods){CodeMsg validate = ValidateEntityUtil.validate(reportGoods);if(validate.getCode() != CodeMsg.SUCCESS.getCode()){return Result.error(validate);}if(reportGoods.getGoods() == null || reportGoods.getGoods().getId() == null){return Result.error(CodeMsg.HOME_STUDENT_GOODS_NO_EXIST);}Student loginedStudent = (Student)SessionUtil.get(SessionConstant.SESSION_STUDENT_LOGIN_KEY);ReportGoods find = reportGoodsService.find(reportGoods.getGoods().getId(), loginedStudent.getId());if(find != null){return Result.error(CodeMsg.HOME_STUDENT_REPORTED_GOODS);}reportGoods.setStudent(loginedStudent);if(reportGoodsService.save(reportGoods) == null){return Result.error(CodeMsg.HOME_STUDENT_REPORT_GOODS_ERROR);}return Result.success(true);}/*** 删除举报信息* @param id* @return*/@RequestMapping(value="/delete_report",method=RequestMethod.POST)@ResponseBodypublic Result<Boolean> deleteReport(@RequestParam(name="id",required=true)Long id){ReportGoods reportGoods = reportGoodsService.find(id);if(reportGoods == null){return Result.error(CodeMsg.HOME_STUDENT_REPORTED_NO_EXIST);}Student loginedStudent = (Student)SessionUtil.get(SessionConstant.SESSION_STUDENT_LOGIN_KEY);if(reportGoods.getStudent().getId().longValue() != loginedStudent.getId().longValue()){return Result.error(CodeMsg.HOME_STUDENT_REPORTED_NO_EXIST);}reportGoodsService.delete(id);return Result.success(true);}/*** 获取个人物品统计信息* @return*/@RequestMapping(value="/get_stats",method=RequestMethod.POST)@ResponseBodypublic Result<Map<String, Integer>> getStats(){Map<String, Integer> ret = new HashMap<String, Integer>();Student loginedStudent = (Student)SessionUtil.get(SessionConstant.SESSION_STUDENT_LOGIN_KEY);List<Goods> findByStudent = goodsService.findByStudent(loginedStudent);Integer goodsTotal = findByStudent.size();//已发布的商品总数Integer soldGoodsTotal = 0;Integer downGoodsTotal = 0;Integer upGoodsTotal = 0;for(Goods goods : findByStudent){if(goods.getStatus() == Goods.GOODS_STATUS_SOLD){soldGoodsTotal++;}if(goods.getStatus() == Goods.GOODS_STATUS_DOWN){downGoodsTotal++;}if(goods.getStatus() == Goods.GOODS_STATUS_UP){upGoodsTotal++;}}ret.put("goodsTotal", goodsTotal);ret.put("soldGoodsTotal", soldGoodsTotal);ret.put("downGoodsTotal", downGoodsTotal);ret.put("upGoodsTotal", upGoodsTotal);return Result.success(ret);}/*** 评论物品* @param comment* @return*/@RequestMapping(value="/comment",method=RequestMethod.POST)@ResponseBodypublic Result<Boolean> comment(Comment comment){CodeMsg validate = ValidateEntityUtil.validate(comment);if(validate.getCode() != CodeMsg.SUCCESS.getCode()){return Result.error(validate);}if(comment.getGoods() == null || comment.getGoods().getId() == null){return Result.error(CodeMsg.HOME_STUDENT_GOODS_NO_EXIST);}Student loginedStudent = (Student)SessionUtil.get(SessionConstant.SESSION_STUDENT_LOGIN_KEY);Goods find = goodsService.findById(comment.getGoods().getId());if(find == null){return Result.error(CodeMsg.HOME_STUDENT_GOODS_NO_EXIST);}comment.setStudent(loginedStudent);if(commentService.save(comment) == null){return Result.error(CodeMsg.HOME_STUDENT_COMMENT_ADD_ERROR);}return Result.success(true);}/*** 修改学生用户密码* @param oldPwd* @param newPwd* @return*/@RequestMapping(value="/edit_pwd",method=RequestMethod.POST)@ResponseBodypublic Result<Boolean> editPwd(@RequestParam(name="oldPwd",required=true)String oldPwd,@RequestParam(name="newPwd",required=true)String newPwd){Student loginedStudent = (Student)SessionUtil.get(SessionConstant.SESSION_STUDENT_LOGIN_KEY);if(!loginedStudent.getPassword().equals(oldPwd)){return Result.error(CodeMsg.HOME_STUDENT_EDITPWD_OLD_ERROR);}loginedStudent.setPassword(newPwd);if(studentService.save(loginedStudent) == null){return Result.error(CodeMsg.HOME_STUDENT_EDITINFO_ERROR);}SessionUtil.set(SessionConstant.SESSION_STUDENT_LOGIN_KEY, loginedStudent);return Result.success(true);}
}

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