@Override public Page<SysUserPolicyEntity> selectInsured(GrpnameForm data, int current, int pageSize) { //查询 String employeeNo = data.getEmployeeNo(); String grpname = data.getGrpname(); List<SysUserPolicyEntity> lcgrpcontVoPage = lcgrpcontMapper.selectInsured(grpname); LambdaQueryWrapper<SysUserPolicyEntity> wrapper = new LambdaQueryWrapper<>(); wrapper.eq(ObjectUtils.isNotEmpty(employeeNo), SysUserPolicyEntity::getEmployeeNo, employeeNo); List<SysUserPolicyEntity> sysUserPolicyEntityList = sysUserPolicyMapper.selectList(wrapper); for (SysUserPolicyEntity record : lcgrpcontVoPage) { for (SysUserPolicyEntity policyEntity : sysUserPolicyEntityList) { if (record.getGrpcontno().equals(policyEntity.getGrpcontno())) { record.setSelectFlag(policyEntity.getSelectFlag()); } } } sysUserPolicyMapper.delete(wrapper); Page<SysUserPolicyEntity> objectPage = new Page<>(); objectPage.setRecords(lcgrpcontVoPage); objectPage.setCurrent(current); objectPage.setSize(pageSize); objectPage.setTotal(lcgrpcontVoPage.size()); return objectPage; }自制分页放入数据

@Override public Page<SysUserPolicyEntity> selectInsured(GrpnameForm data, int current, int pageSize) { //查询 String employeeNo = data.getEmployeeNo(); String grpname = data.getGrpname(); List<SysUserPolicyEntity> lcgrpcontVoPage = lcgrpcontMapper.selectInsured(grpname); LambdaQueryWrapper<SysUserPolicyEntity> wrapper = new LambdaQueryWrapper<>(); wrapper.eq(ObjectUtils.isNotEmpty(employeeNo), SysUserPolicyEntity::getEmployeeNo, employeeNo); List<SysUserPolicyEntity> sysUserPolicyEntityList = sysUserPolicyMapper.selectList(wrapper); for (SysUserPolicyEntity record : lcgrpcontVoPage) { for (SysUserPolicyEntity policyEntity : sysUserPolicyEntityList) { if (record.getGrpcontno().equals(policyEntity.getGrpcontno())) { record.setSelectFlag(policyEntity.getSelectFlag()); } } } sysUserPolicyMapper.delete(wrapper); Page<SysUserPolicyEntity> objectPage = new Page<>(); objectPage.setRecords(lcgrpcontVoPage); objectPage.setCurrent(current); objectPage.setSize(pageSize); objectPage.setTotal(lcgrpcontVoPage.size()); return objectPage; }按照分页放入数据

public Page<SysUserPolicyEntity> selectInsured(GrpnameForm data, int current, int pageSize) { //查询 String employeeNo = data.getEmployeeNo(); String grpname = data.getGrpname(); List...

@Override public IPage<Subject> getPage1(int currentPage, int pageSize, Subject subject) { LambdaQueryWrapper<Subject> lqw = new LambdaQueryWrapper<Subject>(); lqw.eq(subject.getSubjectId()!=null,Subject::getSubjectId,subject.getS

public IPage<Subject> getPage1(int currentPage, int pageSize, Subject subject) { LambdaQueryWrapper<Subject> lqw = new LambdaQueryWrapper<Subject>(); lqw.eq(subject.getSubjectId()!=null,Subject::...

@Override public int delete(String ids) { // TODO Auto-generated method stub return gradeDao.delete(ids); } @Override public List<Grade> findList(Map<String, Object> queryMap) { // TODO Auto-generated method stub return gradeDao.findList(queryMap); } @Override public int getTotal(Map<String, Object> queryMap) { // TODO Auto-generated method stub return gradeDao.getTotal(queryMap); } @Override public List<Grade> findAll() { // TODO Auto-generated method stub return gradeDao.findAll(); } }给代码加上注释

public int getTotal(Map<String, Object> queryMap) { // TODO Auto-generated method stub return gradeDao.getTotal(queryMap); } /** * 通过调用GradeDao的findAll方法获取所有成绩信息列表。 * @...

@Service public class TestServiceImpl extends ServiceImpl<TestDao, Test> implements ITestService { @Autowired private TestDao testDao; @Override public IPage<Test> getPage(int currentPage, int pageSize) { IPage page = new Page(currentPage,pageSize); testDao.selectPage(page,null); return page; } @Override public IPage<Test> getPage(int currentPage, int pageSize, Test test) { LambdaQueryWrapper<Test> lqw = new LambdaQueryWrapper<Test>(); lqw.eq(test.getTestId()!=null,Test::getTestId,test.getTestId()); lqw.like(Strings.isNotEmpty(test.getTestName()), Test::getTestName, test.getTestName()); lqw.like(Strings.isNotEmpty(test.getTestLabel()), Test::getTestLabel, test.getTestLabel()); IPage page = new Page(currentPage, pageSize); testDao.selectPage(page, lqw); return page; } @Override public void collectTestView(Integer id) { Test test = testDao.selectById(id); int a = testDao.selectById(id).getTestViews(); a=a+1; test.setTestViews(a); testDao.updateById(test); } @Override public List<Map> getByCompany(String company) { return testDao.selectByCompany(company); } @Override public List<Map> getSome(Integer id) { return testDao.selectAll(id); } }

其中 getPage() 方法获取指定页数和大小的测试数据，getPage() 方法还可以通过传入 Test 对象来进行筛选查询，collectTestView() 方法用于收集测试数据的浏览量，getByCompany() 方法和 getSome() 方法分别用于根据...

@Override public Map<String, Object> findByAll(Integer pageNo, Integer pageSize) { return null; 请补全

public Map<String, Object> findByAll(Integer pageNo, Integer pageSize) { // 查询数据 List<Object> dataList = // 查询数据的逻辑 // 分页处理 int total = dataList.size(); int start = (pageNo - 1) *...

@Override public PageInfo<Auction> findAllAuction(Auction auction, int pageNum, int pageSize) { List<Auction> auctionList=new ArrayList<>(); PageHelper.startPage(pageNum,pageSize); if(auction==null){//如果条件为空 auctionList=auctionMapper2.findAllAuction(); }else { auctionList = auctionMapper2.findAllAuction2(auction); } PageInfo<Auction> pageInfo=new PageInfo<>(auctionList); return pageInfo; } @Override public Auction findAuctionById(int auctionid) { return auctionMapper2.findAuctionById(auctionid); } @Override public List<UserAndRecord> findAuctionAndUser(int auctionid) { return userAndRecordMapper.findAuctionAndUser(auctionid); } }这段代码是什么意思

第一个方法是findAllAuction，它接收一个Auction类型的参数和两个int类型的参数pageNum和pageSize，它会根据条件查询出数据库中的Auction表中满足条件的所有数据，并返回一个由PageInfo包装过的Auction类型的List。...

//任务3：修改学生信息【5分】 @Override public int updateStudent(Student student) { final int i = sqlSession.update("updadestudent", student); sqlSession.commit(); return i; } @Override public Student selectStudentByID(int id) { Student student =(Student) sqlSession.selectOne( "selectStudentById", id); return student; } @Override public List<Student> selectStudentByCID(int cid) { List<Student> studentList = sqlSession.selectList( "selectStudentByCId",cid); return studentList; } //任务4：根据班级名称，查询该班级的学生【5分】 @Override public List<Student> selectStudentByCName(String cname) { return null; } @After

//任务4：根据班级名称，查询该班级的...public List<Student> selectStudentByCName(String cname) { List<Student> studentList = sqlSession.selectList("selectStudentByCName", cname); return studentList; }

@Override public List<RoublePersonnelPool> selectRoublePersonnelPool(RoublePersonnelPool roublePersonnelPool) { return roublePersonnelPoolRepository.findAll(); } /** * 分页查询人员库信息 * * @param pageHelper * @return */ @Override public Page<RoublePersonnelPool> pageRoublePersonnelPool(PageHelper<RoublePersonnelPool> pageHelper) { RoublePersonnelPool roublePersonnelPool = pageHelper.getData(); Pageable pageable = PageRequest.of(pageHelper.getCurrent(), pageHelper.getSize()); return roublePersonnelPoolRepository.findAll(this.getSpecification(roublePersonnelPool), pageable); } /** * 新增人员 * * @param roublePersonnelPool * @return */ @Override public RoublePersonnelPool saveRoublePersonnelPool(RoublePersonnelPool roublePersonnelPool) { roublePersonnelPool.setCreateDate(new Date()); return roublePersonnelPoolRepository.save(roublePersonnelPool); } /** * 更新人员信息 * * @param roublePersonnelPool * @return */ @Override public boolean updateRoublePersonnelPool(RoublePersonnelPool roublePersonnelPool) { roublePersonnelPool.setCreateDate(new Date()); roublePersonnelPool.setUpdateDate(new Date()); roublePersonnelPoolRepository.saveAndFlush(roublePersonnelPool); return true; }帮我优化以上代码

public Page<RoublePersonnelPool> pageRoublePersonnelPool(PageHelper<RoublePersonnelPool> pageHelper) { RoublePersonnelPool roublePersonnelPool = pageHelper.getData(); Pageable pageable = PageRequest...

解释一下这段代码public class ReturnTicketImpl implements ReturnTicketService { @Override public List<TTicket> getAllTickets() { // TODO Auto-generated method stub return null; } @Override public TTicket getTicketById(int ticketId) { // TODO Auto-generated method stub return null; } @Override public boolean deleteTicket(int ticketId) throws SQLException { return new ReturnTicketDao().deleteTicket(ticketId); } @Override public List<TicketOrder> displayTicket(String username) throws SQLException { // TODO Auto-generated method stub return new DisplayTicketDao().dispalyTicket(username); } @Override public List<TicketOrder> dispalyTicketID(int ticketID) throws SQLException { // TODO Auto-generated method stub return new ReturnTicketDao().dispalyTicketID(ticketID); } }

4. displayTicket(String username)方法：返回一个TicketOrder类型的List，表示展示指定用户名下的所有订单信息，该方法调用了DisplayTicketDao类中的dispalyTicket()方法。 5. dispalyTicketID(int ticketID)方法...

解释这段代码@Service("commonService") public class CommonServiceImpl implements CommonService { @Autowired private CommonDao commonDao; @Override public List<String> getOption(Map<String, Object> params) { return commonDao.getOption(params); } @Override public Map<String, Object> getFollowByOption(Map<String, Object> params) { return commonDao.getFollowByOption(params); } @Override public void sh(Map<String, Object> params) { commonDao.sh(params); } @Override public int remindCount(Map<String, Object> params) { return commonDao.remindCount(params); } @Override public Map<String, Object> selectCal(Map<String, Object> params) { return commonDao.selectCal(params); } @Override public List<Map<String, Object>> selectGroup(Map<String, Object> params) { return commonDao.selectGroup(params); } @Override public List<Map<String, Object>> selectValue(Map<String, Object> params) { return commonDao.selectValue(params); }

这些方法的返回值分别是List<String>、Map<String, Object>、void、int、Map<String, Object>、List<Map<String, Object>>和List<Map<String, Object>>。这个类的作用是提供一些通用的数据库访问方法，可以被其他...

package com.xie.service.impl; import com.xie.mapper.InfoMapper; import com.xie.service.InfoService; import com.xie.vo.NewsInfoVo; import org.springframework.stereotype.Service; import org.springframework.transaction.annotation.Transactional; import javax.annotation.Resource; import java.util.List; @Service @Transactional(rollbackFor = Exception.class) public class InfoServiceImpl implements InfoService { @Resource private InfoMapper infoMapper; @Override public List<NewsInfoVo> getMainInfoVo() { return infoMapper.selectInfoVo(); } @Override public List<NewsInfoVo> getInfoVo(String type, int page) { int pages = (page-1)*7; return infoMapper.selectInfoVoByTypeAndRow(type, pages); } @Override public int getInfoCount(String type) { return infoMapper.selectInfoCount(type); } @Override public int getExamId(int newsId) { return infoMapper.selectExamIdByNewsId(newsId); } }

2. getInfoVo(String type, int page)：根据类型和页码调用infoMapper的selectInfoVoByTypeAndRow(type, pages)方法获取信息列表，返回类型为List<NewsInfoVo>。 3. getInfoCount(String type)：根据类型调用...

@Service public class BuildingServiceImpl extends ServiceImpl<BuildingMapper, Building> implements IBuildingService { @Autowired private BuildingMapper buildingDao; @Override public PageInfo<Building> findBuildAll(int page, int pageSize, String numbers) { PageHelper.startPage(page,pageSize); List<Building> list=buildingDao.queryBuildAll(numbers); return new PageInfo<>(list); }

这是一个BuildingService接口的实现类...需要注意的是，该方法中的参数page、pageSize和numbers分别表示当前页码、每页大小和查询条件。具体的实现可以根据不同的需求，在对应的BuildingMapper中完成。

根据您提供的三个类，我认为您需要实现的接口应该是OrderService，以下是基于您提供的类实现的接口方法： import java.util.ArrayList; import java.util.Date; import java.util.HashMap; import java.util.List; import java.util.Map; public class OrderServiceImpl implements OrderService { private Map<String, Order> orders = new HashMap<>(); @Override public void addOrder(String Id, Date createTime, List<Dish> dishes) { User user = new User("1", new Date(), new Date(), "username", "password"); List<OrderItem> items = new ArrayList<>(); for (Dish dish : dishes) { items.add(new OrderItem(dish, 1)); } Order order = new Order(Id, createTime, createTime, user, items, 0); orders.put(Id, order); } @Override public void deleteOrder(String Id) { orders.remove(Id); } @Override public void updateOrder(String Id, Date updateTime, List<Dish> dishes) { Order order = orders.get(Id); List<OrderItem> items = new ArrayList<>(); for (Dish dish : dishes) { items.add(new OrderItem(dish, 1)); } order.setItems(items); order.setUpdateTime(updateTime); orders.put(Id, order); } @Override public List<Order> queryOrder(String Id) { List<Order> result = new ArrayList<>(); if (orders.containsKey(Id)) { result.add(orders.get(Id)); } return result; } @Override public List<Order> queryAllOrders() { return new ArrayList<>(orders.values()); } } public class OrderItem extends BaseEntity { private Dish dish; private int quantity; // 省略 getter 和 setter 方法 public OrderItem(String id,Date createTime,Date updateTime,Dish dish,int quantity) { super(id,createTime,updateTime); this.dish=dish; this.quantity=quantity; }请基于四个类帮我实现接口的方法

public List<Order> queryOrder(String id) { List<Order> result = new ArrayList<>(); if (orders.containsKey(id)) { result.add(orders.get(id)); } return result; } @Override public List<Order> ...

解释一下这段代码public class PersonalCenterImpl implements PersonalCenterService{ @Override public List<TicketUser> personalInformation(String username) throws SQLException { // TODO Auto-generated method stub return new PersonalCenterDao().personalInformation(username); } @Override public boolean changePersonalInformation(String username, int num, String change) throws SQLException { return new PersonalCenterDao().changePersonalInformation(username, num, change); } } public interface PersonalCenterService { public List<TicketUser> personalInformation(String username) throws SQLException; public boolean changePersonalInformation(String username,int num,String change)throws SQLException; }

接口定义了两个抽象方法personalInformation和changePersonalInformation，分别用于查询和修改个人中心的相关信息。实现类PersonalCenterImpl实现了这两个方法，它们分别调用了PersonalCenterDao类中的对应...

@Service public class UserServiceImpl implements UserService { @Autowired private UserMapper userMapper; @Override public PageInfo<User> getUserList(int pageNum, int pageSize) { PageHelper.startPage(pageNum, pageSize); List<User> userList = userMapper.getUserList((pageNum - 1) * pageSize, pageSize); return new PageInfo<>(userList); } @Override public User getUserById(int id) { return userMapper.getUserById(id); } @Override public void addUser(User user) { userMapper.addUser(user); } @Override public void updateUser(User user) { userMapper.updateUser(user); } @Override public void deleteUser(int id) { userMapper.deleteUser(id); } }根据这段代码把Contorller层补全

public PageInfo<User> getUserList(@RequestParam("pageNum") int pageNum, @RequestParam("pageSize") int pageSize) { return userService.getUserList(pageNum, pageSize); } // 根据id查询用户 @...

public class NoteAdapter extends RecyclerView.Adapter<NoteAdapter.BindHolder<ItemLinearBinding>> { private List<Note> data = new ArrayList<>(); public List<Note> getData() { return data; } @NonNull @Override //继承parent的layout public BindHolder<ItemLinearBinding> onCreateViewHolder(@NonNull ViewGroup parent, int viewType) { return new BindHolder<>(ItemLinearBinding.inflate(LayoutInflater.from(parent.getContext()), parent, false)); }

这段代码是一个 RecyclerView 的适配器，它继承了 RecyclerView.Adapter<NoteAdapter.BindHolder<ItemLinearBinding>> ，并且使用了泛型来指定 ViewHolder 的类型。适配器中有一个 List<Note> 类型的数据集合，用于...

/ @Service("UserService") public class UserServiceImpl implements UserService { @Autowired private UserDao userDao; @Autowired private RoleDao roleDao; @Override public int delete(Integer id) { return userDao.delete(id); } @Override public int update(Integer id, String name, Integer age, String iphone, String sex, String roleId) { return userDao.update(id, name, age, iphone, sex,Integer.parseInt(roleId)); } @Override public int append(String name, Integer age, String iphone, String sex, String roleId) { return userDao.insert(name,age,iphone,sex,Integer.valueOf(roleId),new Date()); } @Override public List<Role> selectAllRole() { return roleDao.selectAll(); } @Override public PageResult pageSelect(Integer page, Integer size, String value) { Long total =userDao.count(value); int start = (page-1)size; List<User> userList = userDao.pageSelect(start,size,value); for (User user : userList) { if(user != null){ user.setRoleName(roleDao.selectNameById(user.getRoleId())); } } PageResult pageResult = new PageResult(total, userList); return pageResult; } @Override public User selectById(Integer id) { User user = userDao.selectById(id); if(user != null){ user.setRoleName(roleDao.selectNameById(user.getRoleId())); } return user; } @Override public List<User> selectAllUser() { return userDao.selectAllUser(); } }

其中@Autowired注解用于自动注入UserDao和RoleDao对象，@Override注解用于重写接口中的方法。delete、update、append、selectAllRole、pageSelect、selectById和selectAllUser方法用于实现不同的业务逻辑。其中page...

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