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看了两个不同的C++培训课程,最后的实习程序都是这个项目。不看老师的讲解视频,自己试着写了一下,在写的过程中发现当项目需求不固定时,会越写越乱,总是想要添加更高的需求,导致写了删,删了写。还好没有放弃,全部拿下了。而且,获益良多。自我感觉这个系统功能还是很强大的,包括输入数据的正确性检查,输入过程中的返回等。
1、管理员和普通用户分别登陆
2、管理员可对普通用户、会议室、所有预约进行维护
3、普通用户只有删插增改自己的预约
4、使用文件储存数据
封装:封装的思想更加成熟,UI界面和数据完全隔离,只能通过管理员或者用户调用数据中心的方法实现访问;其次,UI界面之间的并列或者层级关系更清晰了,利用返回值控制返回界面。
继承:管理员类继承了用户类,基础功能在用户类中实现,管理员类直接调用。
多态:同一种功能函数,满足不同需求,利用虚函数实现了多态。
文件读写:文件读写时,基础数据类型可以直接读写;非基础数据类型需要自行实现读写方法;容器不能直接读写,需要逐一读写每个元素。
时间:time_t 和tm 两种时间格式的转换。
以及对组作为返回值的便利,容器的排序函数对象和查找函数对象需要一致等等。
代码比较多,还好主要注释都写了。欢迎大佬批评指正,欢迎同学交流学习。
OAUtils.h 提供了数字读取、字符串读取功能,提供文件读写字符串功能
- #pragma once
- #include<iostream>
- using namespace std;
- #include<string>
- #include<fstream>
- class OAUtils
- {
- public:
- static int getNum();
- static string getStr();
- static void save_str(ofstream& ofs,string& str);
- static void read_str(ifstream& ifs, string& str);
- };
-
OAUtils.cpp
- #include "OAUtils.h"
-
- int OAUtils::getNum()
- {
- int res = -1;
- cin >> res;
- while (cin.fail()) {
- cin.clear();
- cin.ignore(numeric_limits<streamsize>::max(), '\n');
- cin >> res;
- }
- return res;
- }
-
- string OAUtils::getStr()
- {
- string str;
- cin >> str;
- while (cin.fail() || str.size() > 16 || str.size() == 0) {
- cin.clear();
- cin.ignore(numeric_limits<streamsize>::max(), '\n');
- cout << "输入格式有误,请重新输入:";
- cin >> str;
- }
- return str;
- }
-
- void OAUtils::save_str(ofstream & ofs, string & str)
- {
- size_t size = str.size();
- ofs.write((char*) &(size), sizeof(size));
- for (auto it = str.begin(); it != str.end(); it++) {
- ofs.write((char*)&(*it), sizeof(*it));
- }
- }
-
- void OAUtils::read_str(ifstream & ifs, string & str)
- {
- size_t size = 0;
- ifs.read((char*)&size, sizeof(size));
- str.resize(size);
- for (auto it = str.begin(); it != str.end(); it++) {
- ifs.read((char*)&(*it), sizeof(*it));
- }
- }
OAsystemUI.h 提供的所有界面函数,利用枚举标记返回界面
- #pragma once
- #include"OADataCenter.h"
- //UI界面flag
- enum Page {
- Exit, //退出
- MainPage, //主界面
- LoginPageAdmin, //管理员登录界面
- LoginPageUser, //用户登录界面
- AdminPage, //管理员界面
- UserPage, //用户界面
- AddUserPage, //添加用户界面——管理员
- DelUserPage, //删除用户界面——管理员
- AddRoomPage, //添加会议室界面——管理员
- DelRoomPage, //删除会议室界面——管理员
- AdminAddAppPage, //管理员添加预约
- UserAddAppPage, //用户添加预约
- AdminDelAppPage, //管理员删除预约
- UserDelAppPage, //用户删除预约
- CleAppPage, //清空所有预约——管理员
- };
- //UI系统
- class OAsystemUI {
- public:
- static int displayMainPage(); //主界面函数
-
- static int displayLoginPage(AdminData** ptr_admin); //管理员登录界面函数
- static int displayLoginPage(UserData** ptr_user); //用户登录界面函数
- static int LoginPage(string& name, string& password); //登陆界面函数,主要用于获取name,password
-
- static int displayAdminPage(AdminData* ptr_admin); //管理员界面函数
- static int displayUserPage(UserData* ptr_user); //用户界面函数
-
- static int displayAddUserPage(AdminData* ptr_admin); //添加用户界面函数——管理员
- static int displayDelUserPage(const AdminData* ptr_admin); //删除用户界面函数——管理员
- static int displayAddRoomPage(AdminData* ptr_admin); //添加会议室界面函数——管理员
- static int displayDelRoomPage(AdminData* ptr_admin); //删除会议室界面函数——管理员
-
- static int displayAddAppPage(AdminData* ptr_admin); //管理员添加预约
- static int displayAddAppPage(UserData* ptr_user); //用户添加预约
- static int AddAppPage(UserData* ptr_data); //预约界面
- static int displayDelAppPage(AdminData* ptr_admin); //管理员删除预约
- static int displayDelAppPage(UserData* ptr_user); //用户删除预约
- static void DelAppPage(UserData* pt_data); //删除预约
- static int displayCleAppPage(AdminData* ptr_admin); //清空所有预约界面函数——管理员
- };
OAsystemUI.cpp 所有界面函数的实现
- #include "OAsystemUI.h"
- #include<iostream>
- using namespace std;
- #include"OAUtils.h"
- #include<string>
- #include"OADataCenter.h"
-
-
- //主界面
- int OAsystemUI::displayMainPage()
- {
- int Pageflag = MainPage;
- int choice = -1;
- cout << "****欢迎使用会议室预约系统****" << endl;
- cout << "******************************" << endl;
- cout << " 1.管理员登录" << endl;
- cout << " 2.普通用户登录" << endl;
- cout << " 0.退出系统" << endl;
- cout << "******************************" << endl;
- cout << "请输入您的选择:";
- choice = OAUtils::getNum();
- enum MainChoice { exit = 0, adminlogin, userlogin };
- switch (choice) {
- case MainChoice::exit:
- cout << "欢迎下次使用" << endl;
- Pageflag = Exit;
- system("pause");
- break;
- case MainChoice::adminlogin:
- Pageflag = LoginPageAdmin;
- break;
- case MainChoice::userlogin:
- Pageflag = LoginPageUser;
- break;
- default:
- cout << "输入错误,请重新输入" << endl;
- system("pause");
- Pageflag = MainPage;
- break;
- }
- return Pageflag;
- }
- //管理员登录界面
- int OAsystemUI::displayLoginPage(AdminData** ptr_admin)
- {
- cout << "**********管理员登录**********" << endl;
- string name, password, depart;
- int pageflag = LoginPage(name, password);
- if (pageflag != Page::MainPage) {
- AdminData admin(name, password, "管理员");
- *ptr_admin = admin.Login();
- if (*ptr_admin) {
- pageflag = Page::AdminPage;
- }
- else {
- cout << "登陆失败,请重新登陆" << endl;
- system("pause");
- pageflag = Page::LoginPageAdmin;
- }
- }
- return pageflag;
- }
- //用户登录界面
- int OAsystemUI::displayLoginPage(UserData ** ptr_user)
- {
- cout << "***********用户登录***********" << endl;
- string name, password, depart;
- int pageflag = LoginPage(name, password);
- if (pageflag != Page::MainPage) {
- UserData user(name, password, depart);
- *ptr_user = user.Login();
- if (*ptr_user) {
- pageflag = Page::UserPage;
- }
- else {
- cout << "登陆失败,请重新登陆" << endl;
- system("pause");
- pageflag = Page::LoginPageUser;
- }
- }
- return pageflag;
- }
- //登陆界面,用于获取name和passwo,由管理员和用户登录界面调用
- int OAsystemUI::LoginPage(string& name, string& password)
- {
- int pageflag = Page::MainPage;
- cout << "******************************" << endl;
- cout << "请输入您的账号(输入0返回上级):";
- name = OAUtils::getStr();
- if (name != "0") {
- cout << "请输入您的密码(输入0返回上级):";
- password = OAUtils::getStr();
- if (password != "0") {
- pageflag = -1;
- }
- }
- return pageflag;
- }
- //管理员界面
- int OAsystemUI::displayAdminPage(AdminData* ptr_admin)
- {
- int choice = -1, pageflag = Page::AdminPage;
- cout << "************管理员************" << endl;
- cout << "******************************" << endl;
- cout << " 1.添加用户" << endl;
- cout << " 2.删除用户" << endl;
- cout << " 3.添加会议室" << endl;
- cout << " 4.删除会议室" << endl;
- cout << " 5.添加预约" << endl;
- cout << " 6.查看预约" << endl;
- cout << " 7.删除预约" << endl;
- cout << " 8.清空预约" << endl;
- cout << " 0.退出登录" << endl;
- cout << "******************************" << endl;
- cout << "请输入您的选择:";
- choice = OAUtils::getNum();
- enum AdminChoice { Exit, Adduser, Deluser, Addroom, Delroom, Addapp, Showapp, Delapp, Cleapp };
-
- switch (choice) {
- case Exit:
- pageflag = Page::MainPage;
- break;
- case Adduser:
- pageflag = Page::AddUserPage;
- break;
- case Deluser:
- pageflag = Page::DelUserPage;
- break;
- case Addroom:
- pageflag = Page::AddRoomPage;
- break;
- case Delroom:
- pageflag = Page::DelRoomPage;
- break;
- case Addapp:
- pageflag = Page::AdminAddAppPage;
- break;
- case Showapp:
- ptr_admin->showApp();
- system("pause");
- pageflag = Page::AdminPage;
- break;
- case Delapp:
- pageflag = Page::AdminDelAppPage;
- break;
- case Cleapp:
- pageflag = Page::CleAppPage;
- break;
- }
- return pageflag;
- }
- //用户界面
- int OAsystemUI::displayUserPage(UserData* ptr_user)
- {
- int choice = -1, pageflag = Page::UserPage;
- cout << "*************用户*************" << endl;
- cout << "******************************" << endl;
- cout << " 1.添加预约" << endl;
- cout << " 2.删除预约" << endl;
- cout << " 3.查看预约" << endl;
- cout << " 0.退出登录" << endl;
- cout << "******************************" << endl;
- cout << "请输入您的选择:";
- choice = OAUtils::getNum();
- enum { Exit, AddApp, DelApp, ShowApp };
- switch (choice) {
- case Exit:
- pageflag = Page::MainPage;
- break;
- case AddApp:
- pageflag = Page::UserAddAppPage;
- break;
- case DelApp:
- pageflag = Page::UserDelAppPage;
- break;
- case ShowApp:
- ptr_user->showApp();
- pageflag = Page::UserPage;
- break;
- }
- return pageflag;
- }
- //添加用户界面——管理员
- int OAsystemUI::displayAddUserPage(AdminData* ptr_admin)
- {
- cout << "******管理员——添加用户******" << endl;
- cout << "******************************" << endl;
- cout << "请输入要添加的用户名(输入0返回上级):";
- string name = OAUtils::getStr();
- while (name != "0"&&ptr_admin->checkName(name)) {
- cout << "该用户名已被占用,请重新输入:";
- name = OAUtils::getStr();
- }
- if (name != "0") {
- cout << "请输入密码(输入0返回上级):";
- string password = OAUtils::getStr();
- if (password != "0") {
- cout << "请输入部门(输入0返回上级):";
- string depart = OAUtils::getStr();
- if (depart != "0") {
- ptr_admin->AddUser(UserData(name, password, depart));
- cout << "添加用户成功" << endl;
- system("pause");
- }
- }
- }
- return Page::AdminPage;
- }
- //删除用户界面——管理员
- int OAsystemUI::displayDelUserPage(const AdminData * ptr_admin)
- {
- cout << "******管理员——删除用户******" << endl;
- cout << "******************************" << endl;
- if (ptr_admin->showUser()) {
- cout << "请输入要删除的用户名(输入0返回上级):";
- string name = OAUtils::getStr();
- while (name != "0"&&!ptr_admin->checkName(name)) {
- cout << "该用户不存在,请重新输入(输入0返回上级):";
- name = OAUtils::getStr();
- }
- if (name != "0") {
- cout << "请输入管理员密码确定删除(输入0取消):";
- string password = OAUtils::getStr();
- while (password != "0"&&password != ptr_admin->getPasw()) {
- cout << "管理员密码错误,请重新输入(输入0取消):";
- password = OAUtils::getStr();
- }
- if (password != "0") {
- ptr_admin->DelUser(name);
- cout << "删除用户成功" << endl;
- }
- }
- }
- system("pause");
- return Page::AdminPage;
- }
- //添加会议室界面——管理员
- int OAsystemUI::displayAddRoomPage(AdminData * ptr_admin)
- {
- cout << "*****管理员——添加会议室*****" << endl;
- cout << "******************************" << endl;
- cout << "请输入会议室门牌号:";
- int id = OAUtils::getNum();
- if (ptr_admin->AddMeetingRoom(id)) {
- cout << "会议室添加成功" << endl;
- }
- else {
- cout << "该会议室已存在" << endl;
- }
- system("pause");
- return Page::AdminPage;
- }
- //删除会议室界面——管理员
- int OAsystemUI::displayDelRoomPage(AdminData * ptr_admin)
- {
- cout << "*****管理员——删除会议室*****" << endl;
- cout << "******************************" << endl;
- if (ptr_admin->showRoom()) {
- cout << "请输入会议室门牌号:";
- int id = OAUtils::getNum();
- if (ptr_admin->DelMeetingRoom(id)) {
- cout << "会议室删除成功" << endl;
- }
- else {
- cout << "该会议室不存在" << endl;
- }
- }
- system("pause");
- return Page::AdminPage;
- }
- //管理员添加预约界面
- int OAsystemUI::displayAddAppPage(AdminData* ptr_admin)
- {
- int choice = -1, pageflag = Page::AdminPage;
- cout << "**********管理员预约**********" << endl;
- cout << "******************************" << endl;
- AddAppPage(ptr_admin);
- return pageflag;
- }
- //用户添加预约界面
- int OAsystemUI::displayAddAppPage(UserData * ptr_user)
- {
- int choice = -1, pageflag = Page::UserPage;
- cout << "***********用户预约***********" << endl;
- cout << "******************************" << endl;
- AddAppPage(ptr_user);
- return pageflag;
- }
- //预约界面
- int OAsystemUI::AddAppPage(UserData * ptr_data)
- {
- tm t;
- cout << "请输入您要预约的年份(输入-1返回上级):";
- t.tm_year = OAUtils::getNum();
- if (t.tm_year != -1) {
- t.tm_year -= 1900;
- cout << "请输入您要预约的月份(输入-1返回上级):";
- t.tm_mon = OAUtils::getNum();
- if (t.tm_mon != -1) {
- t.tm_mon -= 1;
- cout << "请输入您要预约哪天(输入-1返回上级):";
- t.tm_mday = OAUtils::getNum();
- if (t.tm_mday != -1) {
- cout << "请输入您要预约几时(输入-1返回上级):";
- t.tm_hour = OAUtils::getNum();
- while (t.tm_hour < -1 || t.tm_hour >= 24) {
- cout << "输入有误,请重新输入预约几时(输入-1返回上级):";
- t.tm_hour = OAUtils::getNum();
- }
- if (t.tm_hour != -1) {
- cout << "请输入您要预约多少分(输入-1返回上级):";
- t.tm_min = OAUtils::getNum();
- while (t.tm_min < -1 || t.tm_min >= 60) {
- cout << "输入有误,请重新输入预约几时(输入-1返回上级):";
- t.tm_min = OAUtils::getNum();
- }
- if (t.tm_min != -1) {
- cout << "请输入您预约的会议时长(单位:分钟):";
- time_t duration = OAUtils::getNum();
- cout << "请输入您要预约的会议室:";
- int roomid = OAUtils::getNum();
- t.tm_sec = 0;
- int Addres = ptr_data->addApp(t, duration, roomid);
- if (Addres == 1) {
- OADataCenter::save_OADataCenter();
- cout << "添加预约成功" << endl;
- }
- else if (Addres == -1) {
- cout << "没有此会议室" << endl;
- }
- else {
- cout << "该会议室预约时间冲突" << endl;
- }
- system("pause");
- }
- }
- }
- }
- }
- return Page::AdminPage;
- }
- //管理员删除预约界面
- int OAsystemUI::displayDelAppPage(AdminData * ptr_admin)
- {
- int pageflag = Page::AdminPage;
- cout << "********管理员删除预约********" << endl;
- cout << "******************************" << endl;
- if (ptr_admin->showApp()) {
- DelAppPage(ptr_admin);
- }
- return pageflag;
- }
- //用户删除预约界面
- int OAsystemUI::displayDelAppPage(UserData * ptr_user)
- {
- int pageflag = Page::UserPage;
- cout << "*********用户删除预约*********" << endl;
- cout << "******************************" << endl;
- if (ptr_user->showApp()) {
- DelAppPage(ptr_user);
- }
- return pageflag;
- }
- //删除预约界面
- void OAsystemUI::DelAppPage(UserData * pt_data)
- {
- bool res = true;
- cout << "请输入要删除预约的序号:";
- int id = OAUtils::getNum();
- id -= 1;
- if (!pt_data->delApp(id)) {
- cout << "删除失败" << endl;
- res = false;
- }
- else {
- cout << "删除成功" << endl;
- }
- system("pause");
- }
- //清空预约界面
- int OAsystemUI::displayCleAppPage(AdminData * ptr_admin)
- {
- cout << "********管理员清空预约********" << endl;
- cout << "******************************" << endl;
- cout << "是否确定清空所有预约?" << endl;
- cout << " 1.是\t2.否" << endl;
- int choice = OAUtils::getNum();
- if (choice == 1) {
- ptr_admin->CleAppPage();
- cout << "已清空" << endl;
- }
- system("pause");
- return Page::AdminPage;
- }
OADataCenter.h 数据控制中心,包含用户类、管理员类、预约类、控制中心类的声明
- #pragma once
- #include<iostream>
- using namespace std;
- #include<vector>
- #include<ctime>
- #include"OAUtils.h"
-
- using MeetingRoom = int;
- using _It_room = vector<MeetingRoom>::iterator;
- //用户信息类
- class UserData {
- private:
- string _name;
- string _password;
- string _depart;
- public:
- UserData();
- UserData(string name, string password, string depart);
-
- string& getName();
- string& getPasw();
- string& getDepart();
- const string& getName()const;
- const string& getPasw()const;
- const string& getDepart()const;
- //用户登陆函数——通过多态实现管理员的不同登陆功能
- virtual UserData* Login();
- bool showApp();
- //添加预约——返回-1,会议室不存在,返回0时间冲突
- int addApp(tm& t, time_t duration, MeetingRoom roomid);
- bool delApp(int id);
- //写入或读取文件
- void save(ofstream& ofs);
- void read(ifstream& ifs);
- };
- class AdminData :public UserData {
- public:
- AdminData();
- AdminData(string name, string password, string depart);
-
- AdminData* Login()override;
- bool showUser()const;
- bool showRoom();
- void AddUser(const UserData& userdata);
- void DelUser(const string& name)const;
- bool AddMeetingRoom(int id);
- bool DelMeetingRoom(int roomid);
- bool checkName(const string& name)const;
- void CleAppPage();
- };
- //预约类
- class Appointment {
- private:
- tm _t;
- time_t _duration;
- int _roomnum;
- string _username;
- string _userdepart;
- public:
- Appointment();
- Appointment(const tm& t, time_t duration, int roomid, string name, string depart);
- const time_t getAppTime()const;
- const time_t getAppDuration()const;
- const int getRoomID()const;
- const string& getAppName()const;
- const string& getAppdepart()const;
- void save(ofstream& ofs);
- void read(ifstream& ifs);
- };
-
- using _It_user = vector<UserData>::iterator;
- using _It_app = vector<Appointment>::iterator;
-
- //数据中心类
- class OADataCenter {
- private:
- static AdminData admin;
- static vector<UserData> user;
- static vector<MeetingRoom> room;
- static vector<Appointment> App;
- public:
- //删插增改和登陆功能函数
- static UserData* Login(const UserData& userdata);
- static AdminData* Login(const AdminData& admindata);
- static void AddUser(const UserData& userdata);
- static void DelUser(const string& name);
- static bool AddMeetingRoom(int id);
- static bool DelMeetingRoom(MeetingRoom roomid);
- static void AddApp(const Appointment& app);
- static bool DelApp(const UserData& data, int id);
- static void CleApp();
- static bool showApp(const string& name);
- static bool showUser();
- static bool showRoom();
- //数据读取和写入
- static void init_OADataCenter();
- static void save_OADataCenter();
- //核对姓名、密码、时间,获取用户和预约的迭代器
- static bool checkTime(time_t time, time_t duration, MeetingRoom roomid);
- static _It_user get_It_User(const string& name);
- static _It_room get_It_Room(const MeetingRoom& id);
- static pair<_It_user, bool> checkName(const string& name);
- static bool checkPasw(const _It_user& it,const string& password);
- static pair<_It_room, bool> checkRoom(const MeetingRoom& id);
-
- };
- //排序谓词
- struct CompareName {
- bool operator()(const Appointment& a1, const Appointment& a2);
- };
- struct CompareRoomID {
- bool operator()(const Appointment& a1, const Appointment& a2);
- };
- struct PrintApp {
- void operator()(Appointment&a);
- };
OADataCenter.cpp
- #include "OADataCenter.h"
- #include<algorithm>
- #include<iomanip>
- #include<sstream>
- #include<fstream>
- //用户信息类构造
- UserData::UserData() {}
- UserData::UserData(string name, string password, string depart)
- {
- _name = name;
- _password = password;
- _depart = depart;
- }
- //获取用户名、密码、部门
- string& UserData::getName()
- {
- return _name;
- }
- string& UserData::getPasw()
- {
- return _password;
- }
- string & UserData::getDepart()
- {
- return _depart;
- }
- const string& UserData::getName() const
- {
- return _name;
- }
- const string& UserData::getPasw() const
- {
- return _password;
- }
- const string & UserData::getDepart() const
- {
- return _depart;
- }
- //用户登录
- UserData * UserData::Login()
- {
- return OADataCenter::Login(*this);
- }
- //用户添加预约——判断会议室是否存在,判断时间是否冲突
- int UserData::addApp(tm& t, time_t duration, MeetingRoom roomid)
- {
- int res = 1;
- time_t t_time = mktime(&t);
- pair<_It_room, bool> respair = OADataCenter::checkRoom(roomid);
- if (!(respair.second)) {
- res = -1;
- }
- else if (!OADataCenter::checkTime(t_time, duration, roomid)) {
- res = 0;
- }
- else {
- Appointment app(t, duration, roomid, _name, _depart);
- OADataCenter::AddApp(app);
- }
- return res;
- }
- //删除预约
- bool UserData::delApp(int id)
- {
- return OADataCenter::DelApp(*this,id);
- }
- //查看预约——用户查看的是个人的预约,管理员查看的是所有预约
- bool UserData::showApp()
- {
- bool res = OADataCenter::showApp(_name);
- return res;
- }
- //保存用户信息到文件
- void UserData::save(ofstream & ofs)
- {
- OAUtils::save_str(ofs, _name);
- OAUtils::save_str(ofs, _password);
- OAUtils::save_str(ofs, _depart);
- }
- //从文件读取用户信息
- void UserData::read(ifstream & ifs)
- {
- OAUtils::read_str(ifs, _name);
- OAUtils::read_str(ifs, _password);
- OAUtils::read_str(ifs, _depart);
- }
-
- //管理员构造函数
- AdminData::AdminData() {}
- AdminData::AdminData(string name, string password, string depart) :UserData(name, password, depart) {}
- //管理员登录
- AdminData * AdminData::Login()
- {
- return OADataCenter::Login(*this);
- }
- //管理员查看所有用户
- bool AdminData::showUser()const
- {
- return OADataCenter::showUser();
- }
- //管理员查看所有会议室
- bool AdminData::showRoom()
- {
- return OADataCenter::showRoom();
- }
- //管理员添加用户——调用数据中心的添加用户函数
- void AdminData::AddUser(const UserData& userdata)
- {
- OADataCenter::AddUser(userdata);
- }
- //管理员删除用户——调用数据中心的删除用户函数
- void AdminData::DelUser(const string& name)const
- {
- OADataCenter::DelUser(name);
- }
- //管理员添加会议室——调用数据中心的添加会议室函数
- bool AdminData::AddMeetingRoom(int id)
- {
- return OADataCenter::AddMeetingRoom(id);
- }
- //管理员删除会议室——调用数据中心的删除会议室函数
- bool AdminData::DelMeetingRoom(int roomid)
- {
- return OADataCenter::DelMeetingRoom(roomid);
- }
- //管理员核对用户姓名是否存在
- bool AdminData::checkName(const string & name)const
- {
- return OADataCenter::checkName(name).second;
- }
-
- void AdminData::CleAppPage()
- {
- OADataCenter::CleApp();
- }
-
- //预约类构造函数
- Appointment::Appointment()
- {
- this->_t = { 0 };
- this->_roomnum = 0;
- this->_duration = 0;
- }
- Appointment::Appointment(const tm & t, time_t duration, int roomid, string name, string depart)
- {
- _t = t;
- _duration = duration;
- _roomnum = roomid;
- _username = name;
- _userdepart = depart;
- }
- //获取预约的time_t格式时间
- const time_t Appointment::getAppTime()const
- {
- return mktime(&tm(_t));
- }
- //获取预约的时长分钟
- const time_t Appointment::getAppDuration()const
- {
- return _duration;
- }
- //获取预约的会议室
- const int Appointment::getRoomID() const
- {
- return _roomnum;
- }
- //获取预约用户
- const string& Appointment::getAppName()const
- {
- return _username;
- }
- //获取预约部门
- const string& Appointment::getAppdepart()const
- {
- return _userdepart;
- }
- //保存约信息到文件
- void Appointment::save(ofstream& ofs)
- {
- ofs.write((char*)&_t, sizeof(_t));
- ofs.write((char*)&_duration, sizeof(_duration));
- ofs.write((char*)&_roomnum, sizeof(_roomnum));
- OAUtils::save_str(ofs, _username);
- OAUtils::save_str(ofs, _userdepart);
- }
- //从文件读取预约信息
- void Appointment::read(ifstream & ifs)
- {
- ifs.read((char*)&_t, sizeof(_t));
- ifs.read((char*)&_duration, sizeof(_duration));
- ifs.read((char*)&_roomnum, sizeof(_roomnum));
- OAUtils::read_str(ifs, _username);
- OAUtils::read_str(ifs, _userdepart);
- }
- //用户和管理员登录函数重载
- UserData * OADataCenter::Login(const UserData & userdata)
- {
- UserData* res = nullptr;
- pair<_It_user, bool> checkpair = checkName(userdata.getName());
- if (checkpair.second) {
- if (checkPasw(checkpair.first, userdata.getPasw())) {
- res = &(*checkpair.first);
- }
- }
- return res;
- }
-
- AdminData * OADataCenter::Login(const AdminData & admindata)
- {
- AdminData* admin_ptr = nullptr;
- if (admin.getName() == admindata.getName() && admin.getPasw() == admindata.getPasw()) {
- admin_ptr = &admin;
- }
- return admin_ptr;
- }
-
- void OADataCenter::AddUser(const UserData & userdata)
- {
- user.push_back(userdata);
- OADataCenter::save_OADataCenter();
- }
- //数据中心删除用户
- void OADataCenter::DelUser(const string & name)
- {
- user.erase(OADataCenter::get_It_User(name));
- save_OADataCenter();
- }
- //数据中心添加会议室——添加前判断会议室是否存在
- bool OADataCenter::AddMeetingRoom(int id)
- {
- bool res = false;
- if (!checkRoom(id).second) {
- room.push_back(id);
- res = true;
- OADataCenter::save_OADataCenter();
- }
- return res;
- }
- //数据中心删除会议室——删除前判断会议室是否存在
- bool OADataCenter::DelMeetingRoom(MeetingRoom roomid)
- {
- bool res = false;
- _It_room it = get_It_Room(roomid);
- if (it != room.end()) {
- room.erase(it);
- cout << room.size() << endl;
- res = true;
- OADataCenter::save_OADataCenter();
- }
- return res;
- }
- //数据中心添加预约
- void OADataCenter::AddApp(const Appointment & app)
- {
- App.push_back(app);
- save_OADataCenter();
- }
- //数据中心删除预约
- bool OADataCenter::DelApp(const UserData & data, int id)
- {
- bool res = false;
- sort(App.begin(),App.end(),CompareName());
- pair<_It_app, _It_app> respair;
- if (&data != &admin) {
- respair = equal_range(App.begin(), App.end(), Appointment(tm(), 0, 0, data.getName(), ""),CompareName());
- }
- else {
- respair.first = App.begin();
- respair.second = App.end();
- }
- if (id < respair.second - respair.first&&id >= 0) {
- App.erase(respair.first + id);
- res = true;
- save_OADataCenter();
- }
- return res;
- }
- //数据中心清空预约
- void OADataCenter::CleApp()
- {
- App.clear();
- vector<Appointment>().swap(App);
- }
- //保存所有数据到文件
- void OADataCenter::init_OADataCenter()
- {
- ifstream ifs;
- ifs.open("DataCenter.txt", ios::in | ios::binary);
- if (ifs.is_open()) {
- size_t usersize = 0;
- ifs.read((char*)&usersize, sizeof(usersize));
- user.resize(usersize);
- for (_It_user it = user.begin(); it != user.end(); it++) {
- it->read(ifs);
- }
- size_t roomsize = 0;
- ifs.read((char*)&roomsize, sizeof(roomsize));
- room.resize(roomsize);
- for (_It_room it = room.begin(); it != room.end(); it++) {
- ifs.read((char*)&(*it), sizeof(*it));
- }
- size_t appsize = 0;
- ifs.read((char*)&appsize, sizeof(appsize));
- App.resize(appsize);
- for (_It_app it = App.begin(); it != App.end(); it++) {
- it->read(ifs);
- }
- ifs.close();
- }
- }
- //从文件写入数据
- void OADataCenter::save_OADataCenter()
- {
- ofstream ofs;
- ofs.open("DataCenter.txt", ios::out | ios::binary);
- if (ofs.is_open()) {
- size_t size = user.size();
- ofs.write((char*)&size, sizeof(size));
- for (auto it = user.begin(); it != user.end(); it++) {
- it->save(ofs);
- }
- size = room.size();
- ofs.write((char*)&size, sizeof(size));
- for (_It_room it = room.begin(); it != room.end(); it++) {
- ofs.write((char*)&(*it), sizeof(*it));
- }
- size = App.size();
- ofs.write((char*)&size, sizeof(size));
- for (auto it = App.begin(); it != App.end(); it++) {
- it->save(ofs);
- }
- ofs.close();
- }
- }
- //数据中心核对时间是否冲突
- bool OADataCenter::checkTime(time_t t_time, time_t duration, MeetingRoom roomid)
- {
- bool res = true;
- duration *= 60;
- sort(App.begin(), App.end(), CompareRoomID());
- auto roomidAppit = equal_range(App.begin(), App.end(), Appointment(tm(), 0, roomid, "", ""), CompareRoomID());
-
- for (_It_app it = roomidAppit.first; roomidAppit.first != App.end() && it != roomidAppit.second; it++) {
- if (it->getAppTime() == t_time ||
- (it->getAppTime() < t_time&&it->getAppTime() + it->getAppDuration()*60 > t_time) ||
- (it->getAppTime() > t_time&&it->getAppTime() < t_time + duration)) {
- res = false;
- break;
- }
- }
- return res;
- }
- //通过姓名获取用户的迭代器,不存在则返回end()
- _It_user OADataCenter::get_It_User(const string & name)
- {
- for (_It_user it = user.begin(); it != user.end(); it++) {
- if (it->getName() == name) {
- return it;
- }
- }
- return user.end();
- }
- //通过房间号获取会议室迭代器,不存在返回end
- _It_room OADataCenter::get_It_Room(const MeetingRoom & id)
- {
- return find(room.begin(), room.end(), id);
- }
- //数据中心核实是否存在姓名为name的用户
- pair<_It_user, bool> OADataCenter::checkName(const string& name)
- {
- pair<_It_user, bool> res;
- res.first = get_It_User(name);
- res.second = res.first != user.end();
- return res;
- }
- //数据中心核对密码——登陆时调用
- bool OADataCenter::checkPasw(const _It_user& it, const string& password)
- {
- if (it != user.end()) {
- return it->getPasw() == password;
- }
- else {
- return false;
- }
- }
- //数据中心判断是否存在id会议室
- pair<_It_room, bool> OADataCenter::checkRoom(const MeetingRoom & id)
- {
- pair<_It_room, bool> res;
- res.first = get_It_Room(id);
- res.second = res.first != room.end();
- return res;
- }
- //数据中心查看预约——用户查看个人预约,管理员查看所有预约
- bool OADataCenter::showApp(const string & name)
- {
- bool res = false;
- pair<_It_app, _It_app> myApp;
- if (name != admin.getName()) {
- sort(App.begin(), App.end(), CompareName());
- myApp = equal_range(App.begin(), App.end(), Appointment(tm(), 0, 0, name, ""), CompareName());
- }
- else {
- myApp.first = App.begin();
- myApp.second = App.end();
- }
- if (myApp.first == App.end()) {
- cout << "您没有预约" << endl;
- }
- else {
- res = true;
- cout << setw(10) << setiosflags(ios::left) << "序号"
- << setw(10) << setiosflags(ios::left) << "房间"
- << setw(30) << setiosflags(ios::left) << "预约时间"
- << setw(10) << setiosflags(ios::left) << "预约时长"
- << setw(10) << setiosflags(ios::left) << "预约人"
- << setw(10) << setiosflags(ios::left) << "预约部门" << endl;
- int i = 1;
- for (_It_app it = myApp.first; it != myApp.second; it++, i++) {
- cout << setw(10) << setiosflags(ios::left) << i;
- PrintApp()(*it);
- }
- }
- return res;
- }
- //数据中心查看所有用户——由管理员删除用户时调用
- bool OADataCenter::showUser()
- {
- bool res = false;
- if (user.size() == 0) {
- cout << "当前没有用户" << endl;
- }
- else {
- res = true;
- cout << setw(10) << setiosflags(ios::left) << "序号"
- << setw(10) << setiosflags(ios::left) << "用户名"
- << setw(10) << setiosflags(ios::left) << "部门" << endl;
- int i = 1;
- for (_It_user it = OADataCenter::user.begin(); it != OADataCenter::user.end(); it++, i++) {
- cout << setw(10) << setiosflags(ios::left) << i
- << setw(10) << setiosflags(ios::left) << it->getName()
- << setw(10) << setiosflags(ios::left) << it->getDepart() << endl;
- }
- }
- return res;
- }
- //数据中心查看所有会议室——由管理员删除会议室时调用
- bool OADataCenter::showRoom()
- {
- bool res = false;
- if (OADataCenter::room.size() == 0) {
- cout << "当前没有会议室" << endl;
- }
- else {
- res = true;
- cout << setw(10) << setiosflags(ios::left) << "序号"
- << setw(10) << setiosflags(ios::left) << "门牌号" << endl;
- int i = 1;
- for (_It_room it = OADataCenter::room.begin(); it != OADataCenter::room.end(); it++, i++) {
- cout << setw(10) << setiosflags(ios::left) << i
- << setw(10) << setiosflags(ios::left) << *it << endl;
- }
- }
- return res;
- }
-
- using MeetingRoom = int;
- AdminData OADataCenter::admin("admin", "admin", "管理员");
- vector<UserData> OADataCenter::user;
- vector<MeetingRoom> OADataCenter::room;
- vector<Appointment> OADataCenter::App;
-
-
- //排序谓词
- bool CompareName::operator()(const Appointment& a1, const Appointment& a2)
- {
- return a1.getAppName() < a2.getAppName();
- }
-
- bool CompareRoomID::operator()(const Appointment & a1, const Appointment & a2)
- {
- return a1.getRoomID() < a2.getRoomID();
- }
- //输出预约仿函数
- void PrintApp::operator()(Appointment & a)
- {
- time_t t = a.getAppTime();
- tm tm_t;
- localtime_s(&tm_t, &t);
- ostringstream oss;
- oss << tm_t.tm_year + 1900 << "年" << tm_t.tm_mon + 1 << "月" << tm_t.tm_mday << "日" << tm_t.tm_hour << "时" << tm_t.tm_min << "分";
- cout << setw(10) << a.getRoomID() << setw(30) << oss.str() << setw(10) << a.getAppDuration() << setw(10)
- << a.getAppName() << setw(10) << a.getAppdepart() << endl;
- }
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