毕设 这是一个关于java和spring的项目，是宠物收养网站.zip

package club.service.impl; import club.dao.CommentMapper; import club.pojo.Answer; import club.dao.PetMapper; import club.dao.UserMapper; import club.pojo.Comment; import club.pojo.Pet; import club.pojo.User; import club.service.AnswerService; import club.pojo.Pet; import club.pojo.User; import club.dao.AdminMapper; import club.pojo.*; import club.service.CommentService; import club.service.PetService; import club.service.UserService; import club.service.UserService; import com.baomidou.mybatisplus.mapper.EntityWrapper; import com.github.pagehelper.PageHelper; import com.github.pagehelper.PageInfo; 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 CommentServiceImpl implements CommentService { @Resource private CommentMapper commentMapper; @Resource private UserMapper userMapper; @Resource private PetMapper petMapper; @Resource private AdminMapper adminMapper; @Resource private UserService userService; @Resource private PetService petService; @Resource private AnswerService answerService; @Override public PageInfo<Comment> allComment(String userName, Integer pn, Integer pageSize) { List<User> users = userService.showName(userName); List<Integer> userIds = new ArrayList<>(); for (User user : users){ userIds.add(user.getId()); } PageHelper.startPage(pn,pageSize); EntityWrapper wrapper = new EntityWrapper(); if (users != null){ wrapper.in("userId", userIds); } List<Comment> list = commentMapper.selectList(wrapper); for (Comment comment: list) { User u = userMapper.selectById(comment.getUserId()); comment.setUser(u); Pet pet = petMapper.selectById(comment.getPetId()); comment.setPet(pet); } PageInfo<Comment> pageInfo = new PageInfo<>(list); return pageInfo; } @Override public List<Comment> petComments(Integer petId) { EntityWrapper wrapper = new EntityWrapper(); if (petId != null) { wrapper.eq("petId", petId); } List<Comment> comments = commentMapper.selectList(wrapper); for (Comment comment : comments){ User user = userService.findById(comment.getUserId()); comment.setUser(user); Pet pet = petService.findById(comment.getPetId()); comment.setPet(pet); List<Answer> answers = answerService.answersAboutOneComment(comment.getId()); comment.setAnswer(answers); } return comments; } @Override public Integer create(Integer userId, Integer petId, String content) { Comment comment = new Comment(); comment.setUserId(userId); comment.setPetId(petId); comment.setCommentTime(new Date()); comment.setContent(content); return commentMapper.insert(comment); } @Override public Comment findById(Integer id) { return commentMapper.selectById(id); } @Override public PageInfo<Comment> all(String userName, Integer pageNum, Integer pageSize) { PageHelper.startPage(pageNum,pageSize); EntityWrapper<Comment> wrapper = new EntityWrapper<>(); if(userName!=null&&!"".equals(userName)){ wrapper.like("userName",userName); } List<Comment> list = commentMapper.selectList(wrapper); for(Comment a : list){ Pet pet = petMapper.selectById(a.getPetId()); a.setPet(pet); User user = userMapper.selectById(a.getUserId()); a.setUser(user); Admins admins = adminMapper.selectById(a.getAdminsId()); a.setAdmin(admins); } PageInfo<Comment> pageInfo = new PageInfo<>(list); return pageInfo; } @Override public int update(Comment adoptAnimal) { return commentMapper.updateById(adoptAnimal); } @Override public int delete(Integer id) { return commentMapper.deleteById(id); } }