简单的C++项目之机房预约系统（四）
机房预约系统（四）
- 学生模块
- 1 学生登录和注销
-
- 1.1 构造函数
- 1.2 管理员子菜单
- 1.3 菜单功能实现
- 1.4 接口对接
- 2 申请预约
-
- 2.1 获取机房信息
- 2.2 预约功能实现
- 3 显示预约
-
- 3.1 创建预约类
- 3.2 显示自身预约
- 3.3 显示所有预约
- 4 取消预约
学生模块
1 学生登录和注销
1.1 构造函数
- 在Student类的构造函数中，初始化学生信息，代码如下：
//有参构造(学号、姓名、密码)
Student::Student(int id, string name, string pwd)
{
//初始化属性
this->m_Id = id;
this->m_Name = name;
this->m_Pwd = pwd;
}
1.2 管理员子菜单
- 在机房预约系统.cpp中，当用户登录的是学生，添加学生菜单接口
- 将不同的分支提供出来
- 申请预约
- 查看我的预约
- 查看所有预约
- 取消预约
- 注销登录
- 实现注销功能
添加全局函数 void studentMenu(Identity * &student) 代码如下：
//学生菜单
void studentMenu(Identity * &student)
{
while (true)
{
//学生菜单
student->operMenu();
Student* stu = (Student*)student;
int select = 0;
cin >> select;
if (select == 1) //申请预约
{
stu->applyOrder();
}
else if (select == 2) //查看自身预约
{
stu->showMyOrder();
}
else if (select == 3) //查看所有预约
{
stu->showAllOrder();
}
else if (select == 4) //取消预约
{
stu->cancelOrder();
}
else
{
delete student;
cout << "注销成功" << endl;
system("pause");
system("cls");
return;
}
}
}
1.3 菜单功能实现
- 在实现成员函数
void Student::operMenu()代码如下：
//菜单界面
void Student::operMenu()
{
cout << "欢迎学生代表：" << this->m_Name << "登录！" << endl;
cout << "\t\t ----------------------------------\n";
cout << "\t\t| |\n";
cout << "\t\t| 1.申请预约 |\n";
cout << "\t\t| |\n";
cout << "\t\t| 2.查看我的预约 |\n";
cout << "\t\t| |\n";
cout << "\t\t| 3.查看所有预约 |\n";
cout << "\t\t| |\n";
cout << "\t\t| 4.取消预约 |\n";
cout << "\t\t| |\n";
cout << "\t\t| 0.注销登录 |\n";
cout << "\t\t| |\n";
cout << "\t\t ----------------------------------\n";
cout << "请选择您的操作： " << endl;
}
1.4 接口对接
- 学生成功登录后，调用学生的子菜单界面
- 在学生登录分支中，添加代码：
//进入学生子菜单
studentMenu(person);
2 申请预约
2.1 获取机房信息
- 在申请预约时，学生可以看到机房的信息，因此我们需要让学生获取到机房的信息
在student.h中添加新的成员函数如下：
//机房容器
vector vCom;
在学生的有参构造函数中追加如下代码：
//获取机房信息
ifstream ifs;
ifs.open(COMPUTER_FILE, ios::in);
ComputerRoom c;
while (ifs >> c.m_ComId && ifs >> c.m_MaxNum)
{
vCom.push_back(c);
}
ifs.close();
2.2 预约功能实现
在student.cpp中实现成员函数 void Student::applyOrder()
//申请预约
void Student::applyOrder()
{
cout << "机房开放时间为周一至周五！" << endl;
cout << "请输入申请预约的时间：" << endl;
cout << "1、周一" << endl;
cout << "2、周二" << endl;
cout << "3、周三" << endl;
cout << "4、周四" << endl;
cout << "5、周五" << endl;
int date = 0;
int interval = 0;
int room = 0;
while (true)
{
cin >> date;
if (date >= 1 && date <= 5)
{
break;
}
cout << "输入有误，请重新输入" << endl;
}
cout << "请输入申请预约的时间段：" << endl;
cout << "1、上午" << endl;
cout << "2、下午" << endl;
while (true)
{
cin >> interval;
if (interval >= 1 && interval <= 2)
{
break;
}
cout << "输入有误，请重新输入" << endl;
}
cout << "请选择机房：" << endl;
cout << "1号机房容量：" << vCom[0].m_MaxNum << endl;
cout << "2号机房容量：" << vCom[1].m_MaxNum << endl;
cout << "3号机房容量：" << vCom[2].m_MaxNum << endl;
while (true)
{
cin >> room;
if (room >= 1 && room <= 3)
{
break;
}
cout << "输入有误，请重新输入" << endl;
}
cout << "预约成功！审核中" << endl;
ofstream ofs(ORDER_FILE, ios::app);
ofs << "date:" << date << " ";
ofs << "interval:" << interval << " ";
ofs << "stuId:" << this->m_Id << " ";
ofs << "stuName:" << this->m_Name << " ";
ofs << "roomId:" << room << " ";
ofs << "status:" << 1 << endl;
ofs.close();
system("pause");
system("cls");
}
3 显示预约
3.1 创建预约类
功能描述：显示预约记录时，需要从文件中获取到所有记录，用来显示，创建预约的类来管理记录以及更新
在头文件以及源文件下分别创建orderFile.h 和 orderFile.cpp文件
orderFile.h中添加如下代码：
#pragma once
#include构造函数中获取所有信息，并存放在容器中，添加如下代码：
OrderFile::OrderFile()
{
ifstream ifs;
ifs.open(ORDER_FILE, ios::in);
string date; //日期
string interval; //时间段
string stuId; //学生编号
string stuName; //学生姓名
string roomId; //机房编号
string status; //预约状态
this->m_Size = 0; //预约记录个数
while (ifs >> date && ifs >> interval && ifs >> stuId && ifs >> stuName && ifs >> roomId && ifs >> status)
{
//测试代码
/*
cout << date << endl;
cout << interval << endl;
cout << stuId << endl;
cout << stuName << endl;
cout << roomId << endl;
cout << status << endl;
*/
string key;
string value;
map<string, string> m;
int pos = date.find(":");
if (pos != -1)
{
key = date.substr(0, pos);
value = date.substr(pos + 1, date.size() - pos -1);
m.insert(make_pair(key, value));
}
pos = interval.find(":");
if (pos != -1)
{
key = interval.substr(0, pos);
value = interval.substr(pos + 1, interval.size() - pos -1 );
m.insert(make_pair(key, value));
}
pos = stuId.find(":");
if (pos != -1)
{
key = stuId.substr(0, pos);
value = stuId.substr(pos + 1, stuId.size() - pos -1 );
m.insert(make_pair(key, value));
}
pos = stuName.find(":");
if (pos != -1)
{
key = stuName.substr(0, pos);
value = stuName.substr(pos + 1, stuName.size() - pos -1);
m.insert(make_pair(key, value));
}
pos = roomId.find(":");
if (pos != -1)
{
key = roomId.substr(0, pos);
value = roomId.substr(pos + 1, roomId.size() - pos -1 );
m.insert(make_pair(key, value));
}
pos = status.find(":");
if (pos != -1)
{
key = status.substr(0, pos);
value = status.substr(pos + 1, status.size() - pos -1);
m.insert(make_pair(key, value));
}
this->m_orderData.insert(make_pair(this->m_Size, m));
this->m_Size++;
}
更新预约记录的成员函数updateOrder代码如下：
void OrderFile::updateOrder()
{
if (this->m_Size == 0)
{
return;
}
ofstream ofs(ORDER_FILE, ios::out | ios::trunc);
for (int i = 0; i < m_Size;i++)
{
ofs << "date:" << this->m_orderData[i]["date"] << " ";
ofs << "interval:" << this->m_orderData[i]["interval"] << " ";
ofs << "stuId:" << this->m_orderData[i]["stuId"] << " ";
ofs << "stuName:" << this->m_orderData[i]["stuName"] << " ";
ofs << "roomId:" << this->m_orderData[i]["roomId"] << " ";
ofs << "status:" << this->m_orderData[i]["status"] << endl;
}
ofs.close();
}
3.2 显示自身预约
首先我们先添加几条预约记录，可以用程序添加或者直接修改order.txt文件
order.txt文件内容如下： 比如我们有三名同学分别产生了3条预约记录
在Student类的void Student::showMyOrder()成员函数中，添加如下代码
//查看我的预约
void Student::showMyOrder()
{
OrderFile of;
if (of.m_Size == 0)
{
cout << "无预约记录" << endl;
system("pause");
system("cls");
return;
}
for (int i = 0; i < of.m_Size; i++)
{
if (atoi(of.m_orderData[i]["stuId"].c_str()) == this->m_Id)
{
cout << "预约日期： 周" << of.m_orderData[i]["date"];
cout << " 时段：" << (of.m_orderData[i]["interval"] == "1" ? "上午" : "下午");
cout << " 机房：" << of.m_orderData[i]["roomId"];
string status = " 状态： "; // 0 取消的预约 1 审核中 2 已预约 -1 预约失败
if (of.m_orderData[i]["status"] == "1")
{
status += "审核中";
}
else if (of.m_orderData[i]["status"] == "2")
{
status += "预约成功";
}
else if (of.m_orderData[i]["status"] == "-1")
{
status += "审核未通过，预约失败";
}
else
{
status += "预约已取消";
}
cout << status << endl;
}
}
system("pause");
system("cls");
}
3.3 显示所有预约
在Student类的void Student::showAllOrder()成员函数中，添加如下代码
//查看所有预约
void Student::showAllOrder()
{
OrderFile of;
if (of.m_Size == 0)
{
cout << "无预约记录" << endl;
system("pause");
system("cls");
return;
}
for (int i = 0; i < of.m_Size; i++)
{
cout << i + 1 << "、 ";
cout << "预约日期： 周" << of.m_orderData[i]["date"];
cout << " 时段：" << (of.m_orderData[i]["interval"] == "1" ? "上午" : "下午");
cout << " 学号：" << of.m_orderData[i]["stuId"];
cout << " 姓名：" << of.m_orderData[i]["stuName"];
cout << " 机房：" << of.m_orderData[i]["roomId"];
string status = " 状态： "; // 0 取消的预约 1 审核中 2 已预约 -1 预约失败
if (of.m_orderData[i]["status"] == "1")
{
status += "审核中";
}
else if (of.m_orderData[i]["status"] == "2")
{
status += "预约成功";
}
else if (of.m_orderData[i]["status"] == "-1")
{
status += "审核未通过，预约失败";
}
else
{
status += "预约已取消";
}
cout << status << endl;
}
system("pause");
system("cls");
}
4 取消预约
在Student类的void Student::cancelOrder()成员函数中，添加如下代码
//取消预约
void Student::cancelOrder()
{
OrderFile of;
if (of.m_Size == 0)
{
cout << "无预约记录" << endl;
system("pause");
system("cls");
return;
}
cout << "审核中或预约成功的记录可以取消，请输入取消的记录" << endl;
vector<int>v;
int index = 1;
for (int i = 0; i < of.m_Size; i++)
{
if (atoi(of.m_orderData[i]["stuId"].c_str()) == this->m_Id)
{
if (of.m_orderData[i]["status"] == "1" || of.m_orderData[i]["status"] == "2")
{
v.push_back(i);
cout << index ++ << "、 ";
cout << "预约日期： 周" << of.m_orderData[i]["date"];
cout << " 时段：" << (of.m_orderData[i]["interval"] == "1" ? "上午" : "下午");
cout << " 机房：" << of.m_orderData[i]["roomId"];
string status = " 状态： "; // 0 取消的预约 1 审核中 2 已预约 -1 预约失败
if (of.m_orderData[i]["status"] == "1")
{
status += "审核中";
}
else if (of.m_orderData[i]["status"] == "2")
{
status += "预约成功";
}
cout << status << endl;
}
}
}
cout << "请输入取消的记录,0代表返回" << endl;
int select = 0;
while (true)
{
cin >> select;
if (select >= 0 && select <= v.size())
{
if (select == 0)
{
break;
}
else
{
// cout << "记录所在位置： " << v[select - 1] << endl;
of.m_orderData[v[select - 1]]["status"] = "0";
of.updateOrder();
cout << "已取消预约" << endl;
break;
}
}
cout << "输入有误，请重新输入" << endl;
}
system("pause");
system("cls");
}
参考代码和视频教程链接如下
参考代码
视频教程