基于spring boot-jpa-thmleaf的旅游网站系统项目（免费赠送源码）

package com.power.travel.service; import com.power.travel.core.Result; import com.power.travel.core.ResultGenerator; import com.power.travel.core.ServiceException; import com.power.travel.enums.StatusEnum; import com.power.travel.model.*; import com.power.travel.repository.*; import com.power.travel.util.CookieUitl; import com.power.travel.util.IdGenerator; import org.springframework.beans.factory.annotation.Autowired; import org.springframework.data.domain.Page; import org.springframework.data.domain.Pageable; import org.springframework.stereotype.Service; import org.springframework.transaction.annotation.Transactional; import org.thymeleaf.util.StringUtils; import javax.persistence.criteria.Predicate; import javax.servlet.http.Cookie; import javax.servlet.http.HttpServletRequest; import javax.servlet.http.HttpServletResponse; import java.util.ArrayList; import java.util.Date; import java.util.List; import java.util.Random; @Service public class SystemService { @Autowired private SysUserRepository sysUserRepository; @Autowired private UserRepository userRepository; @Autowired private HotelRepository hotelRepository; @Autowired private AttractionsRepository attractionsRepository; @Autowired private TravelRouteRepository travelRouteRepository; @Autowired private TravelStrategyRepository travelStrategyRepository; private Random random = new Random(100); public Result login(SysUser sysUser, HttpServletResponse response) { SysUser sysUserByUsrname = sysUserRepository.findSysUserByUsername(sysUser.getUsername()); if (sysUserByUsrname == null) { return ResultGenerator.genFailResult("用户名错误！"); } else { if (sysUser.getPassword().equals(sysUserByUsrname.getPassword())) { CookieUitl.set(response, "sysUsername", sysUser.getUsername(), 3600); return ResultGenerator.genSuccessResult(); } else { return ResultGenerator.genFailResult("密码错误"); } } } public void logout(HttpServletRequest request, HttpServletResponse response) { Cookie cookie = CookieUitl.get(request, "sysUsername"); if (cookie != null) { CookieUitl.set(response, "sysUsername", null, 0); } } public Page<User> getUserPage(Pageable pageable) { Page<User> userPage = userRepository.findAll((root, query, cb) -> { List<Predicate> predicates = new ArrayList<>(); query.where(predicates.toArray(new Predicate[]{})); query.orderBy(cb.desc(root.get("id"))); return null; }, pageable); return userPage; } @Transactional(rollbackFor = Exception.class) public Result saveUser(User user) { System.out.println(user.getId()); if (StringUtils.isEmpty(user.getId())) {//没有id的情况 user.setId(IdGenerator.id()); } else { User oldUser = getUserById(user.getId()); user.setUsername(oldUser.getUsername()); user.setName(oldUser.getName()); oldUser.setPassword(user.getPassword()); } userRepository.saveAndFlush(user); return ResultGenerator.genSuccessResult(); } public User getUserById(String id) { User user = userRepository.findById(id).orElseThrow(() -> new ServiceException("用户ID错误")); return user; } public Page<Hotel> getHotelPage(Pageable pageable) { Page<Hotel> hotelPage = hotelRepository.findAll((root, query, cb) -> { List<Predicate> predicates = new ArrayList<>(); query.where(predicates.toArray(new Predicate[]{})); query.orderBy(cb.desc(root.get("createDate"))); return null; }, pageable); return hotelPage; } @Transactional(rollbackFor = Exception.class) public Result saveHotel(Hotel hotel) { if (StringUtils.isEmpty(hotel.getId())) {//没有id的情况 hotel.setId(IdGenerator.id()); hotel.setStatus(StatusEnum.DOWM_STATUS.getCode()); hotel.setCreateDate(new Date()); int i = random.nextInt(100); hotel.setImage("MY_kezhan_0" + (i % 8 + 1)); } else { //有id的情况 Hotel oldHotel = getHotelById(hotel.getId()); hotel.setStatus(oldHotel.getStatus()); hotel.setCreateDate(oldHotel.getCreateDate()); hotel.setImage(oldHotel.getImage()); } hotelRepository.saveAndFlush(hotel); return ResultGenerator.genSuccessResult(); } public Hotel getHotelById(String id) { Hotel hotel = hotelRepository.findById(id).orElseThrow(() -> new ServiceException("酒店ID错误!")); return hotel; } public Result updateStatus(String id) { Hotel hotel = getHotelById(id); if (hotel.getStatus().equals(StatusEnum.DOWM_STATUS.getCode())) { //改变状态 hotel.setStatus(StatusEnum.UP_STATUS.getCode()); } else { hotel.setStatus(StatusEnum.DOWM_STATUS.getCode()); } hotelRepository.saveAndFlush(hotel); return ResultGenerator.genSuccessResult(); } public Page<Attractions> getAttractionsPage(Pageable pageable) { Page<Attractions> attractionsPage = attractionsRepository.findAll((root, query, cb) -> { List<Predicate> predicates = new ArrayList<>(); query.where(predicates.toArray(new Predicate[]{})); query.orderBy(cb.desc(root.get("createDate"))); return null; }, pageable); return attractionsPage; } public Attractions getAttractionsById(String id) { Attractions attractions = attractionsRepository.findById(id).orElseThrow(() -> new ServiceException("景点ID错误")); return attractions; } public Result updateAttractionsStatus(String id) { Attractions attractions = getAttractionsById(id); if (attractions.getStatus().equals(StatusEnum.DOWM_STATUS.getCode())) { //改变状态 attractions.setStatus(StatusEnum.UP_STATUS.getCode()); } else { attractions.setStatus(StatusEnum.DOWM_STATUS.getCode()); } attractionsRepository.saveAndFlush(attractions); return ResultGenerator.genSuccessResult(); } @Transactional(rollbackFor = Exception.class) public Result saveAttractions(Attractions attractions) { if (StringUtils.isEmpty(attractions.getId())) {//没有id的情况 attractions.setId(IdGenerator.id()); attractions.setStatus(StatusEnum.DOWM_STATUS.getCode()); attractions.setCreateDate(new Date()); int i = random.nextInt(100); attractions.setImage("MY_jingdian_0" + (i % 8 + 1)); } else { //有id的情况 Attractions oldAttractions = getAttractionsById(attractions.getId()); attractions.setStatus(oldAttractions.getStatus()); attractions.setCreateDate(oldAttractions.getCreateDate()); attractions.setImage(oldAttractions.getImage()); } attractionsRepository.saveAndFlush(attractions); return ResultGenerator.genSuccessResult(); } public Page<TravelRoute> getTravelRoutePage(Pageable pageable) { Page<TravelRoute> travelRoutePage = travelRouteRepository.findAll((root, query, cb) -> { List<Predicate> predicates = new ArrayList<>(); query.where(predicates.toArray(new Predicate[]{})); query.orderBy(cb.desc(root.get("createDate"))); return null; }, pageable); return travelRoutePage; } @Transactional(rollbackFor = Exception.class) public Result saveTravelRoute(TravelRoute travelRoute) { if (StringUtils.isEmpty(travelRoute.getId())) {//没有id的情况 travelRou