开发工具:IDEA
服务器:Tomcat9.0, jdk1.8
项目构建:maven
数据库:mysql5.7
系统分前后台,项目采用前后端分离
前端技术:vue+elementUI
服务端技术:springboot+mybatis+redis
本项目分为学生和管理员两种角色
一、学生有登录、注册、管理个人信息、浏览座位信息、预约选座、浏览图书信息、借阅图书、浏览借阅信息、管理预约信息等等功能。
二、管理员有管理所有用户新息、管理所有座位信息、管理所有时刻信息、管理所有信誉积分信息、管理所有图书信息、管理所有预约选座、借阅信息等等功能。
文档截图:
N-135基于springboot,vue高校图书馆管理系统
学生截图:
管理员截图:
package com.yjq.programmer.service.impl;import com.github.pagehelper.PageHelper;
import com.github.pagehelper.PageInfo;
import com.yjq.programmer.bean.CodeMsg;
import com.yjq.programmer.constant.CreditDescription;
import com.yjq.programmer.dao.*;
import com.yjq.programmer.domain.*;
import com.yjq.programmer.dto.*;
import com.yjq.programmer.enums.CreditStateEnum;
import com.yjq.programmer.enums.RoleEnum;
import com.yjq.programmer.enums.SeatItemStateEnum;
import com.yjq.programmer.service.ISeatService;
import com.yjq.programmer.utils.CommonUtil;
import com.yjq.programmer.utils.CopyUtil;
import com.yjq.programmer.utils.UuidUtil;
import com.yjq.programmer.utils.ValidateEntityUtil;
import org.springframework.stereotype.Service;
import org.springframework.transaction.annotation.Transactional;import javax.annotation.Resource;
import java.util.ArrayList;
import java.util.Date;
import java.util.List;@Service
@Transactional
public class SeatServiceImpl implements ISeatService {@Resourceprivate SeatMapper seatMapper;@Resourceprivate ScheduleMapper scheduleMapper;@Resourceprivate SeatItemMapper seatItemMapper;@Resourceprivate UserMapper userMapper;@Resourceprivate CreditItemMapper creditItemMapper;/*** 分页获取座位数据* @param pageDTO* @return*/@Overridepublic ResponseDTO<PageDTO<SeatDTO>> getSeatListByPage(PageDTO<SeatDTO> pageDTO) {SeatExample seatExample = new SeatExample();// 判断是否进行关键字搜索SeatDTO searchSeatDTO = pageDTO.getSearchEntity();SeatExample.Criteria criteria = seatExample.createCriteria();if(!CommonUtil.isEmpty(searchSeatDTO.getScheduleId())) {criteria.andScheduleIdEqualTo(searchSeatDTO.getScheduleId());}if(searchSeatDTO.getOpenTime() != null) {criteria.andOpenTimeEqualTo(searchSeatDTO.getOpenTime());}// 不知道当前页多少,默认为第一页if(pageDTO.getPage() == null){pageDTO.setPage(1);}if(pageDTO.getSize() == null) {pageDTO.setSize(5);}PageHelper.startPage(pageDTO.getPage(), pageDTO.getSize());// 分页查出座位数据List<Seat> seatList = seatMapper.selectByExample(seatExample);PageInfo<Seat> pageInfo = new PageInfo<>(seatList);// 获取数据的总数pageDTO.setTotal(pageInfo.getTotal());// 讲domain类型数据 转成 DTO类型数据List<SeatDTO> seatDTOList = CopyUtil.copyList(seatList, SeatDTO.class);// 封装所属时刻数据for(SeatDTO seatDTO : seatDTOList) {Schedule schedule = scheduleMapper.selectByPrimaryKey(seatDTO.getScheduleId());seatDTO.setScheduleDTO(CopyUtil.copy(schedule, ScheduleDTO.class));}pageDTO.setList(seatDTOList);return ResponseDTO.success(pageDTO);}/*** 保存座位数据(添加、修改)* @param seatDTO* @return*/@Overridepublic ResponseDTO<Boolean> saveSeat(SeatDTO seatDTO) {// 进行统一表单验证CodeMsg validate = ValidateEntityUtil.validate(seatDTO);if(!validate.getCode().equals(CodeMsg.SUCCESS.getCode())){return ResponseDTO.errorByMsg(validate);}Seat seat = CopyUtil.copy(seatDTO, Seat.class);if(CommonUtil.isEmpty(seat.getId())){// id为空 说明是添加数据// 判断开发时间和所属时刻是否已经有数据了if(isSeatExist(seat, "")){return ResponseDTO.errorByMsg(CodeMsg.SEAT_ALREADY_EXIST);}// 生成8位idseat.setId(UuidUtil.getShortUuid());// 设置总座位数seat.setTotalNum(seat.getRow() * seat.getCol());// 添加数据到数据库if(seatMapper.insertSelective(seat) == 0){return ResponseDTO.errorByMsg(CodeMsg.SEAT_ADD_ERROR);}}else{// id不为空 说明是修改数据// 判断开发时间和所属时刻是否已经有数据了if(isSeatExist(seat, seat.getId())){return ResponseDTO.errorByMsg(CodeMsg.SEAT_ALREADY_EXIST);}// 删除不在行数列数范围内选座详情数据SeatItemExample seatItemExample = new SeatItemExample();seatItemExample.createCriteria().andSeatIdEqualTo(seat.getId()).andColGreaterThan(seat.getCol()).andRowGreaterThan(seat.getRow());seatItemMapper.deleteByExample(seatItemExample);// 设置总座位数seat.setTotalNum(seat.getRow() * seat.getCol());// 设置已选座位数seatItemExample = new SeatItemExample();seatItemExample.createCriteria().andSeatIdEqualTo(seat.getId()).andColLessThanOrEqualTo(seat.getCol()).andRowLessThanOrEqualTo(seat.getRow());seat.setPickNum(seatItemMapper.countByExample(seatItemExample));// 修改数据库中数据if(seatMapper.updateByPrimaryKeySelective(seat) == 0){return ResponseDTO.errorByMsg(CodeMsg.SEAT_EDIT_ERROR);}}return ResponseDTO.successByMsg(true, "保存成功!");}/*** 删除座位数据* @param seatDTO* @return*/@Overridepublic ResponseDTO<Boolean> removeSeat(SeatDTO seatDTO) {if(CommonUtil.isEmpty(seatDTO.getId())) {return ResponseDTO.errorByMsg(CodeMsg.DATA_ERROR);}// 删除座位数据if(seatMapper.deleteByPrimaryKey(seatDTO.getId()) == 0) {return ResponseDTO.errorByMsg(CodeMsg.SEAT_DELETE_ERROR);}return ResponseDTO.successByMsg(true, "删除成功!");}/*** 根据时间获取座位信息* @param seatDTO* @return*/@Overridepublic ResponseDTO<SeatDTO> getSeatByTimeAndSchedule(SeatDTO seatDTO) {SeatExample seatExample = new SeatExample();seatExample.createCriteria().andOpenTimeEqualTo(seatDTO.getOpenTime()).andScheduleIdEqualTo(seatDTO.getScheduleId());List<Seat> seatList = seatMapper.selectByExample(seatExample);if(seatList != null && seatList.size() > 0) {return ResponseDTO.success(CopyUtil.copy(seatList.get(0), SeatDTO.class));} else {return ResponseDTO.success(null);}}/*** 根据座位id获取座位详情信息* @param seatDTO* @return*/@Overridepublic ResponseDTO<List<SeatItemDTO>> getItemBySeatId(SeatDTO seatDTO) {if(CommonUtil.isEmpty(seatDTO.getId())) {return ResponseDTO.errorByMsg(CodeMsg.DATA_ERROR);}SeatItemExample seatItemExample = new SeatItemExample();seatItemExample.createCriteria().andSeatIdEqualTo(seatDTO.getId()).andStateNotEqualTo(SeatItemStateEnum.CANCEL.getCode());List<SeatItem> seatItemList = seatItemMapper.selectByExample(seatItemExample);return ResponseDTO.success(CopyUtil.copyList(seatItemList, SeatItemDTO.class));}/*** 预约座位操作处理* @param seatItemDTO* @return*/@Overridepublic ResponseDTO<Boolean> pickSeat(SeatItemDTO seatItemDTO) {// 进行统一表单验证CodeMsg validate = ValidateEntityUtil.validate(seatItemDTO);if(!validate.getCode().equals(CodeMsg.SUCCESS.getCode())){return ResponseDTO.errorByMsg(validate);}Seat seat = seatMapper.selectByPrimaryKey(seatItemDTO.getSeatId());if(seat.getPickNum() >= seat.getTotalNum()) {return ResponseDTO.errorByMsg(CodeMsg.SEAT_ALREADY_FULL);}// 判断信誉积分是否小于80User user = userMapper.selectByPrimaryKey(seatItemDTO.getUserId());if(user == null) {return ResponseDTO.errorByMsg(CodeMsg.USER_NOT_EXIST);}if (user.getCreditRate() < 80) {return ResponseDTO.errorByMsg(CodeMsg.CREDIT_PICK_ERROR);}List<Integer> stateList = new ArrayList<>();stateList.add(SeatItemStateEnum.USING.getCode());stateList.add(SeatItemStateEnum.APPOINTMENT.getCode());SeatItemExample seatItemExample = new SeatItemExample();seatItemExample.createCriteria().andUserIdEqualTo(user.getId()).andSeatIdEqualTo(seat.getId()).andStateIn(stateList);if(seatItemMapper.selectByExample(seatItemExample).size() > 0) {return ResponseDTO.errorByMsg(CodeMsg.SEAT_ITEM_BOOK_EXIST);}// 更新座位的选座数 乐观锁 版本号控制避免重复选座SeatExample seatExample = new SeatExample();seatExample.createCriteria().andIdEqualTo(seat.getId()).andVersionEqualTo(seat.getVersion());seat.setPickNum(seat.getPickNum() + 1);seat.setVersion(seat.getVersion() + 1);if(seatMapper.updateByExampleSelective(seat, seatExample) == 0) {return ResponseDTO.errorByMsg(CodeMsg.SEAT_ALREADY_PICK);}Schedule schedule = scheduleMapper.selectByPrimaryKey(seat.getScheduleId());// 写入选座详情数据SeatItem seatItem = CopyUtil.copy(seatItemDTO, SeatItem.class);seatItem.setId(UuidUtil.getShortUuid());seatItem.setCreateTime(new Date());seatItem.setState(SeatItemStateEnum.APPOINTMENT.getCode());seatItem.setOpenTime(seat.getOpenTime());seatItem.setRangeTime(schedule.getName() + "(" + schedule.getRangeTime() + ")");if(seatItemMapper.insertSelective(seatItem) == 0) {throw new RuntimeException(CodeMsg.SEAT_PICK_ERROR.getMsg());}return ResponseDTO.successByMsg(true, "预约成功!");}/*** 获取座位详情数据* @param pageDTO* @return*/@Overridepublic ResponseDTO<PageDTO<SeatItemDTO>> getSeatItemList(PageDTO<SeatItemDTO> pageDTO) {SeatItemDTO searchSeatItemDTO = pageDTO.getSearchEntity();SeatItemExample seatItemExample = new SeatItemExample();SeatItemExample.Criteria criteria = seatItemExample.createCriteria();User user = userMapper.selectByPrimaryKey(searchSeatItemDTO.getUserId());if(user == null) {return ResponseDTO.errorByMsg(CodeMsg.USER_NOT_EXIST);}if(RoleEnum.STUDENT.getCode().equals(user.getRoleId())) {// 如果是学生角色,只能查看自己的预约信息criteria.andUserIdEqualTo(user.getId());}if(searchSeatItemDTO.getOpenTime() != null) {criteria.andOpenTimeEqualTo(searchSeatItemDTO.getOpenTime());}// 不知道当前页多少,默认为第一页if(pageDTO.getPage() == null){pageDTO.setPage(1);}if(pageDTO.getSize() == null) {pageDTO.setSize(5);}seatItemExample.setOrderByClause("create_time desc");PageHelper.startPage(pageDTO.getPage(), pageDTO.getSize());// 分页查出座位详情数据List<SeatItem> seatItemList = seatItemMapper.selectByExample(seatItemExample);PageInfo<SeatItem> pageInfo = new PageInfo<>(seatItemList);// 获取数据的总数pageDTO.setTotal(pageInfo.getTotal());// 讲domain类型数据 转成 DTO类型数据List<SeatItemDTO> seatItemDTOList = CopyUtil.copyList(seatItemList, SeatItemDTO.class);for(SeatItemDTO seatItemDTO : seatItemDTOList) {Seat seat = seatMapper.selectByPrimaryKey(seatItemDTO.getSeatId());SeatDTO seatDTO = CopyUtil.copy(seat, SeatDTO.class);seatItemDTO.setSeatDTO(seatDTO);Schedule schedule = scheduleMapper.selectByPrimaryKey(seat.getScheduleId());seatDTO.setScheduleDTO(CopyUtil.copy(schedule, ScheduleDTO.class));}pageDTO.setList(seatItemDTOList);return ResponseDTO.success(pageDTO);}/*** 修改座位详情状态* @param seatItemDTO* @return*/@Overridepublic ResponseDTO<Boolean> updateSeatItemState(SeatItemDTO seatItemDTO) {if(CommonUtil.isEmpty(seatItemDTO.getId()) || seatItemDTO.getState() == null) {return ResponseDTO.errorByMsg(CodeMsg.DATA_ERROR);}SeatItem seatItem = seatItemMapper.selectByPrimaryKey(seatItemDTO.getId());Seat seat = seatMapper.selectByPrimaryKey(seatItem.getSeatId());if(SeatItemStateEnum.CANCEL.getCode().equals(seatItemDTO.getState()) && !seatItemDTO.getState().equals(seatItem.getState())) {// 如果是改成已取消状态 已选座位数回退SeatExample seatExample = new SeatExample();seatExample.createCriteria().andIdEqualTo(seat.getId()).andVersionEqualTo(seat.getVersion());seat.setPickNum(seat.getPickNum() - 1);seat.setVersion(seat.getVersion() + 1);if(seatMapper.updateByExampleSelective(seat, seatExample) == 0) {return ResponseDTO.errorByMsg(CodeMsg.SYSTEM_BUSY);}} else if(SeatItemStateEnum.BREAK.getCode().equals(seatItemDTO.getState()) && !seatItemDTO.getState().equals(seatItem.getState())) {// 如果是已违约状态 扣除信誉积分5分 写入信誉明细User user = userMapper.selectByPrimaryKey(seatItem.getUserId());if(user == null) {return ResponseDTO.errorByMsg(CodeMsg.USER_NOT_EXIST);}if(user.getCreditRate() > 0) {user.setCreditRate(user.getCreditRate() - 5);userMapper.updateByPrimaryKeySelective(user);CreditItem creditItem = new CreditItem();creditItem.setId(UuidUtil.getShortUuid());creditItem.setCreateTime(new Date());creditItem.setRate(-5);creditItem.setState(CreditStateEnum.OVER.getCode());creditItem.setNowRate(user.getCreditRate());creditItem.setUserId(user.getId());creditItem.setDescription(CreditDescription.CREDIT_RATE_SUB_BY_SEAT);if(creditItemMapper.insertSelective(creditItem) == 0) {throw new RuntimeException(CodeMsg.CREDIT_ADD_ERROR.getMsg());}}} else if (SeatItemStateEnum.USING.getCode().equals(seatItemDTO.getState()) && !seatItemDTO.getState().equals(seatItem.getState())) {// 如果是使用中状态 增加信誉积分5分 写入信誉明细User user = userMapper.selectByPrimaryKey(seatItem.getUserId());if(user == null) {return ResponseDTO.errorByMsg(CodeMsg.USER_NOT_EXIST);}if(user.getCreditRate() < 100) {user.setCreditRate(user.getCreditRate() + 5);userMapper.updateByPrimaryKeySelective(user);CreditItem creditItem = new CreditItem();creditItem.setId(UuidUtil.getShortUuid());creditItem.setCreateTime(new Date());creditItem.setRate(5);creditItem.setState(CreditStateEnum.OVER.getCode());creditItem.setNowRate(user.getCreditRate());creditItem.setUserId(user.getId());creditItem.setDescription(CreditDescription.CREDIT_RATE_ADD_BY_SEAT);if(creditItemMapper.insertSelective(creditItem) == 0) {throw new RuntimeException(CodeMsg.CREDIT_ADD_ERROR.getMsg());}}}seatItem.setState(seatItemDTO.getState());if(seatItemMapper.updateByPrimaryKeySelective(seatItem) == 0) {throw new RuntimeException(CodeMsg.SEAT_STATE_EDIT_ERROR.getMsg());}return ResponseDTO.success(true);}/*** 删除座位详情数据* @param seatItemDTO* @return*/@Overridepublic ResponseDTO<Boolean> removeSeatItem(SeatItemDTO seatItemDTO) {if(CommonUtil.isEmpty(seatItemDTO.getId())) {return ResponseDTO.errorByMsg(CodeMsg.DATA_ERROR);}SeatItem seatItem = seatItemMapper.selectByPrimaryKey(seatItemDTO.getId());Seat seat = seatMapper.selectByPrimaryKey(seatItem.getSeatId());// 已选座位数回退SeatExample seatExample = new SeatExample();seatExample.createCriteria().andIdEqualTo(seat.getId()).andVersionEqualTo(seat.getVersion());seat.setPickNum(seat.getPickNum() - 1);seat.setVersion(seat.getVersion() + 1);if(seatMapper.updateByExampleSelective(seat, seatExample) == 0) {return ResponseDTO.errorByMsg(CodeMsg.SYSTEM_BUSY);}// 删除数据if(seatItemMapper.deleteByPrimaryKey(seatItem.getId()) == 0) {return ResponseDTO.errorByMsg(CodeMsg.SEAT_ITEM_REMOVE_ERROR);}return ResponseDTO.successByMsg(true, "删除成功!");}/*** 获取今日预约座位数* @return*/@Overridepublic ResponseDTO<Integer> getSeatItemTotalByDay() {SeatItemExample seatItemExample = new SeatItemExample();Date startDate = CommonUtil.getFormatterStr(CommonUtil.getFormatterDate(new Date(), "yyyy-MM-dd") + " 00:00:00", "yyyy-MM-dd HH:mm:ss");Date endDate = CommonUtil.getFormatterStr(CommonUtil.getFormatterDate(new Date(), "yyyy-MM-dd") + " 23:59:59", "yyyy-MM-dd HH:mm:ss");seatItemExample.createCriteria().andCreateTimeBetween(startDate, endDate).andStateNotEqualTo(SeatItemStateEnum.CANCEL.getCode());int total = seatItemMapper.countByExample(seatItemExample);return ResponseDTO.success(total);}/*** 判断开发时间和所属时刻是否已经有数据了* @param seat* @param id* @return*/public Boolean isSeatExist(Seat seat, String id) {SeatExample seatExample = new SeatExample();seatExample.createCriteria().andOpenTimeEqualTo(seat.getOpenTime()).andScheduleIdEqualTo(seat.getScheduleId());List<Seat> selectedSeatList = seatMapper.selectByExample(seatExample);if(selectedSeatList != null && selectedSeatList.size() > 0) {if(selectedSeatList.size() > 1){return true; //出现重名}if(!selectedSeatList.get(0).getId().equals(id)) {return true; //出现重名}}return false;//没有重名}
}