用户信息系统_serviceImpl

package com.hopetesting.service.impl;

import com.hopetesting.dao.UserDao;
import com.hopetesting.dao.impl.UserDaoImpl;
import com.hopetesting.domain.PageBean;
import com.hopetesting.domain.User;
import com.hopetesting.service.UserService;

import java.util.List;
import java.util.Map;
import java.util.Set;

/**
 * @author newcityman
 * @date 2019/9/7 - 21:16
 */
public class UserServiceImpl implements UserService {
    UserDao userDao = new UserDaoImpl();
    @Override
    public List<User> findAllUser() {
        return userDao.findAllUser();
    }

    @Override
    public User login(User user) {
        return userDao.login(user);
    }

    @Override
    public void addUser(User user) {
        userDao.add(user);
    }

    @Override
    public void delUserById(String id) {

        userDao.delUser(Integer.parseInt(id));
    }

    @Override
    public User findUserById(String id) {
        return userDao.findUserById(Integer.parseInt(id));
    }

    @Override
    public void updateUserById(User user) {
        userDao.updateUserById(user);
    }

    @Override
    public void delSelectedUser(String[] uids) {
        if(uids!=null && uids.length>0){
            for (String uid : uids) {
                userDao.delUser(Integer.parseInt(uid));
            }
        }
    }

    @Override
    public PageBean<User> findUserByPage(String _currentPage, String _rows, Map<String, String[]> condition) {
        int currentPage = Integer.parseInt(_currentPage);
        int rows = Integer.parseInt(_rows);


        if(currentPage<=0){
            currentPage=1;
        }

        //1、创建一个空的pageBean对象
        PageBean<User> pb = new PageBean<User>();
        //2、设置参数
        pb.setRows(rows);

        //3、调用dao层查询总记录数
        int totalCount =userDao.findTotalCount(condition);
        pb.setTotalCount(totalCount);
        //4、调用dao层查询list集合
        int startIndex = (currentPage-1)*rows;
        List<User> list=userDao.findByPage(startIndex ,rows,condition);
        pb.setList(list);
        //5、计算总页码
        int totalPage =totalCount%rows==0? totalCount/rows:totalCount/rows+1;
        if(currentPage>=totalPage){
            currentPage =totalPage;
        }
        pb.setCurrentPage(currentPage);
        pb.setTotalPage(totalPage);
        return pb;
    }
}

用户信息系统_serviceImpl

原文：https://www.cnblogs.com/newcityboy/p/11509638.html