大家好,又见面了,我是你们的朋友全栈君。
前言
操作系统:Windows下运行。如果需要在Linux运行(单机版),则需要修改删除conio.h,自己写个头文件获取键盘输入。我已经写好了getch.h文件,需要将其导入使用。
开发环境:CodeBlocks || VS Code ( gcc编译 )
开发语言:C
实现功能:登录,订票,退票
数据存储:文本读写
涉及文件:
这几个信息文件不能少!!! 少了程序跑不了!!!
相关文件下载:
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* *
* *
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相关图片(仅供参考):程序是没有涉及旅行社的
ps:图片由PowerDesigner绘制而成
ER图:
数据库:
类图:
用例图:
订票顺序图:
订票状态图:
登录活动图:
以上图片仅供参考,请自行斟酌
程序主界面:
进入子功能需要账号和密码,存储在passenger.txt文件中
ps:文件数据的顺序就是结构体的顺序
typedef struct Flight
{
char fid[20]; //航班号
char fname[20]; //航班名称
char start[10]; //起点
char end[10]; //终点
int fnum; //票数
}Flight;
typedef struct Passenger
{
char pid[20]; //身份证
char pname[10]; //姓名
char password[20]; //密码
char tell[20]; //电话
}Passenger;
typedef struct Order
{
char pid[20]; //身份证
char fid[20]; //航班号
int num; //票数
}Order;
单机版(win)
注意头文件使用的conio.h,此版本为windows,linux参考前言的代码仓库
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <stdbool.h>
//#include "getch.h"
#include <conio.h>
#define MAX_Flight 50 // 最大航班数
#define MAX_Passenger 20 // 单航班最多乘客数
#define MAX_Order 50 // 最大订票数
typedef struct Flight
{
char fid[20]; //航班号
char fname[20]; //航班名称
char start[10]; //起点
char end[10]; //终点
int fnum; //票数
}Flight;
typedef struct Passenger
{
char pid[20]; //身份证
char pname[10]; //姓名
char password[20]; //密码
char tell[20]; //电话
}Passenger;
typedef struct Order
{
char pid[20]; //身份证
char fid[20]; //航班号
int num; //票数
}Order;
Flight *FLI; // 定义全局变量
Passenger *PAS;
Order *ORD;
char start[10]; //起点
char end[10]; //终点
char search_fid[50][20]; //符合条件的航班号
int search_fnum[50]; //符合条件的航班票数
int online = 0; //是否登录的变量
char online_pid[20]; //在线用户的身份证
int search_num = 0; //符合条件的航班数
void init_sys(void); // 系统初始化
void show_flight(void); // 显示航班表
void start_sys(void); // 系统开始运行
void exit_sys(void); // 退出系统
void menu(void); // 生成主菜单
void login(void); // 登录
void logout(void); //用户登出
void passenger_info(void); //查询旅客信息
bool change_pas_info(void); //修改旅客信息
void search_start(void); // 生成查询页面
bool search(void); // 查询航班
void order_list(void); // 生成订单表
void del_order(void); // 退票
void clear_stdin(void); // 清除输入缓冲区
char* get_str(char* str,size_t len); // 获取字符串
char get_cmd(char start,char end); // 获取cmd命令
// 主函数
int main()
{
init_sys(); // 系统初始化
start_sys(); // 系统开始运行
exit_sys(); // 系统结束
return 0;
}
// 系统初始化
void init_sys(void)
{
// 申请堆内存、加载数据
FLI = calloc(MAX_Flight,sizeof(Flight));
PAS = calloc(MAX_Passenger,sizeof(Passenger));
ORD = calloc(MAX_Order,sizeof(Order));
printf("system_init...\n");
// 以只读方式打开 order.txt,如果文件不存在则打开失败,返回值为空。
FILE* ofrp = fopen("order.txt","r");
if(NULL == ofrp) // 打开失败直接退出
{
printf("order.txt open failed!\n");
exit(0);
}
int i = 0;
for(i = 0; i < MAX_Order; i++) //读取文本中的数据到内存,全局变量ORD中
{
int num = 0;
num = fscanf(ofrp,"%s %s %d\n", ORD[i].pid, ORD[i].fid, &ORD[i].num);
}
FILE* ffrp = fopen("flight.txt","r");
if(NULL == ffrp)
{
printf("flight.txt open failed!\n");
exit(0);
}
for(i = 0; i < MAX_Flight; i++)
{
int num = 0;
num = fscanf(ffrp,"%s %s %s %s %d\n", FLI[i].fid, FLI[i].fname, FLI[i].start, FLI[i].end, &FLI[i].fnum);
}
FILE* pfrp = fopen("passenger.txt","r");
if(NULL == pfrp)
{
printf("passenger.txt open failed!\n");
exit(0);
}
for(i = 0; i < MAX_Passenger; i++)
{
int num = 0;
num = fscanf(pfrp,"%s %s %s %s\n", PAS[i].pid, PAS[i].pname, PAS[i].password, PAS[i].tell);
}
}
// 显示航班表
void show_flight(void)
{
int i = 0;
for(i = 0; i < MAX_Flight; i++)
{
if(strlen(FLI[i].fid) != 0)
{
printf("id:%s name:%s start:%s end:%s fnum:%d\n", FLI[i].fid, FLI[i].fname, FLI[i].start, FLI[i].end,
FLI[i].fnum);
}
}
}
// 系统开始运行
void start_sys(void)
{
// 进入系统的业务流程控制
//printf("系统开始运行...\n");
//show_flight();
while(true)
{
menu();
switch(get_cmd('0','7')) // 获取键盘输入
{
case '1': search_start(); break;
case '2': order_list(); break;
case '3': del_order(); break;
case '4': passenger_info(); break;
case '5': change_pas_info(); break;
case '6': login(); break;
case '7': logout(); break;
case '0': return;
}
}
}
// 系统结束
void exit_sys(void)
{
printf("data insert...\n");
FILE* ofwp = fopen("order.txt","w");
printf("ready insert order.txt\n");
int i= 0;
for(i = 0; i < MAX_Order; i++) //数据存储回本地
{
int num = 0;
if(strlen(ORD[i].pid) != 0)
{
num = fprintf(ofwp,"%s %s %d\n", ORD[i].pid, ORD[i].fid, ORD[i].num);
//printf("insert order.txt success\n");
}
}
// 以只写方式打开文件flight.txt,如果文件不存在则创建,如果文件存在则把内容清空。
FILE* ffwp = fopen("flight.txt","w");
printf("insert flight.txt\n");
for(i = 0; i < MAX_Flight; i++)
{
int num = 0;
if(strlen(FLI[i].fid) != 0)
{
num = fprintf(ffwp,"%s %s %s %s %d\n", FLI[i].fid, FLI[i].fname, FLI[i].start, FLI[i].end, FLI[i].fnum);
//printf("insert flight.txt success\n");
}
}
FILE* pfwp = fopen("passenger.txt","w");
printf("insert passenger.txt\n");
for(i = 0; i < MAX_Passenger; i++)
{
int num = 0;
if(strlen(PAS[i].pid) != 0)
{
num = fprintf(pfwp,"%s %s %s %s\n", PAS[i].pid, PAS[i].pname, PAS[i].password, PAS[i].tell);
//printf("insert passenger.txt success\n");
}
}
// 释放内存、保存数据
free(FLI);
free(PAS);
free(ORD);
printf("exit...\n");
}
// 生成主菜单
void menu(void)
{
printf("\n");
printf("********************************\n");
printf("| |\n");
printf("| flight order system |\n");
printf("* 1.search_flight *\n"); //查询航班
printf("| 2.order_list |\n"); //查询订票信息
printf("* 3.del_order *\n"); //退订
printf("| 4.passenger_info |\n"); //查询旅客信息
printf("* 5.change_pas_info *\n"); //修改旅客信息
printf("| 6.login |\n"); //用户登录
printf("* 7.logout *\n"); //用户登出
printf("| 0.exit_sys |\n"); //退出系统
printf("| |\n");
printf("********************************\n");
//printf("\n");
}
// 登录
void login(void)
{
if(online == 0) //如果没有登录
{
int i=0;
int time = 0;
while(time < 3)
{
char entry_pid[20]; //临时变量身份证
char entry_pw[20]; //临时变量密码
printf("please login!\n");
printf("please entry pid:");
get_str(entry_pid, 20);
printf("please entry password:");
get_str(entry_pw, 20);
// 遍历所有乘客
for(i = 0; i < MAX_Passenger; i++)
{
// 数据长度校验
if(strlen(entry_pid) == 0 || strlen(entry_pw) == 0)
{
printf("pid or password can't be empty\n");
time++;
break;
}
// 成功匹配账号密码
else if(strcmp(PAS[i].pid, entry_pid) == 0 && strcmp(PAS[i].password, entry_pw) == 0)
{
printf("login success!\n");
strncpy(online_pid, entry_pid, 20);
online = 1;
return;
}
else if(i == MAX_Passenger-1)
{
printf("pid or password error\n");
time++;
}
}
}
online = -1;
printf("you have been locked,you can use this system now\n");
}
else if(online ==1)
{
printf("you have been login\n");
}
else
{
printf("you have been locked,you can use this system now\n");
}
}
// 用户登出
void logout(void)
{
if(online == 1) //如果已经登录
{
online = 0;
printf("logout success\n");
}
else if(online == -1)
{
printf("you have been locked,you can use this system now\n");
}
else
{
printf("you have not login\n");
}
}
// 查询旅客信息
void passenger_info(void)
{
if(online == 1) //如果已经登录
{
//printf("online_pid:");
//puts(online_pid);
int i = 0;
for(i = 0; i < MAX_Passenger; i++)
{
if(strcmp(online_pid, PAS[i].pid) == 0)
{
printf("pid:%s, pname:%s, password:%s, tell:%s\n", PAS[i].pid, PAS[i].pname, PAS[i].password, PAS[i].tell);
break;
}
}
}
else if(online == -1)
{
printf("you have been locked,you can use this system now\n");
}
else
{
printf("you have not login\n");
}
}
//修改旅客信息
bool change_pas_info(void)
{
if(online == 1) //如果已经登录
{
printf("your old info:\n");
int i = 0;
for(i = 0; i < MAX_Passenger; i++)
{
if(strcmp(online_pid, PAS[i].pid) == 0)
{
printf("pid:%s, pname:%s\npassword:%s, tell:%s\n", PAS[i].pid, PAS[i].pname, PAS[i].password, PAS[i].tell);
break;
}
}
char new_pid[20] = {0};
char new_pname[10] = {0};
char new_password[20] = {0};
char new_tell[20] = {0};
printf("please entry new pid:");
get_str(new_pid, 20);
printf("please entry new pname:");
get_str(new_pname, 10);
printf("please entry new password:");
get_str(new_password, 20);
printf("please entry new tell:");
get_str(new_tell, 20);
strncpy(PAS[i].pid, new_pid, 20);
strncpy(PAS[i].pname, new_pname, 20);
strncpy(PAS[i].password, new_password, 20);
strncpy(PAS[i].tell, new_tell, 20);
printf("change success\n");
}
else if(online == -1)
{
printf("you have been locked,you can use this system now\n");
}
else
{
printf("you have not login\n");
}
}
// 开始查询航班
void search_start(void)
{
if(search())
{
printf("1.order\n");
printf("0.back\n");
char cmd = get_cmd('0', '1');
if(cmd == '0')
{
return;
//start_sys();
}
else
{
char fid[20]; // 选择的航班号
if(online == 1) // 如果已经登录
{
printf("please entry fid:");
get_str(fid, 20);
if(0 == strlen(fid))
{
printf("fid is empty\n");
}
int i = 0;
for(i = 0; i < search_num; i++)
{
//printf("fid:%s s_fid:%s num:%d\n",fid,search_fid[i],search_fnum[i]);
if(strcmp(fid,search_fid[i]) == 0 && search_fnum[i] > 0) //查询到对应航班
{
printf("order success\n");
int j = 0;
for(j = 0; j < MAX_Flight; j++) // 遍历航班表
{
if(strcmp(fid, FLI[j].fid) == 0)
{
FLI[j].fnum--; //票数减1
break;
}
}
int k = 0;
for(k = 0; k < MAX_Order; k++) // 遍历订票表
{
//printf("ready insert...\n");
if(strlen(ORD[k].pid) == 0) // 在空位置插入数据
{
strcpy(ORD[k].pid, online_pid); // 插入当前用户身份证
strcpy(ORD[k].fid, search_fid[i]); // 插入当前选择的航班号
ORD[k].num = 1;
printf("insert_to_order success\n");
break;
}
}
return;
}
else if(strcmp(fid,search_fid[i]) == 0 && search_fnum[i] == 0)
{
printf("no ticket\n");
search_start();
}
else if(i == MAX_Flight-1)
{
printf("don't have this fid\n");
search_start();
}
}
}
else if(online == -1)
{
printf("you have been locked,you can use this system now\n");
}
else
{
login();
}
}
}
}
// 查询航班
bool search(void)
{
printf("start: \n");
get_str(start,10);
printf("end: \n");
get_str(end,10);
int i = 0;
search_num = 0;
// 遍历所有航班
for(i = 0; i < MAX_Flight; i++)
{
if(strlen(start) == 0 || strlen(end) == 0)
{
printf("start or end can't be empty\n");
return false;
}
if(strcmp(FLI[i].start, start) == 0 && strcmp(FLI[i].end, end) == 0)
{
printf("fid:%s, ticket_num:%d\n", FLI[i].fid, FLI[i].fnum);
strncpy(search_fid[search_num], FLI[i].fid, 20);
search_fnum[search_num] = FLI[i].fnum;
//printf("search_fid[%d]:%s, search_fun[%d]:%d\n",search_num,search_fid[search_num],search_num,search_fnum[search_num]);
++search_num;
}
if(0 == search_num && i == MAX_Flight-1)
{
printf("no flight\n");
return false;
}
if(search_num > 0 && i == MAX_Flight-1)
{
//show_flight();
return true;
}
}
}
// 输出订单信息
void order_list(void)
{
if(online == 1)
{
int i = 0;
for(i = 0; i < MAX_Order; i++)
{
if(strcmp(online_pid, ORD[i].pid) == 0)
{
//printf("online_pid:%s\n",online_pid);
printf("fid:%s, pid:%s, ticket:%d\n", ORD[i].fid, ORD[i].pid, ORD[i].num);
}
}
}
else if(online == -1)
{
printf("you have been locked,you can use this system now\n");
}
else
{
login();
}
}
// 删除订单
void del_order(void)
{
if(online == 1)
{
char fid[20];
printf("order_list:\n");
order_list();
printf("please entry del_order fid:");
get_str(fid, 20);
int i = 0;
// 遍历所有订单
for(i = 0; i < MAX_Order; i++)
{
if(strlen(fid) == 0) //判空
{
printf("del_order fid can't be empty\n");
return;
}
if(strcmp(fid, ORD[i].fid) == 0)
{
memset(ORD[i].pid, '\0', sizeof(ORD[i].pid));
int j = 0;
for(j = 0; j < MAX_Flight; j++)
{
if(strcmp(fid, FLI[j].fid) == 0)
{
FLI[j].fnum++; // 返还飞机票
break;
}
}
printf("delete success\n");
return;
}
}
}
else if(online == -1)
{
printf("you have been locked,you can use this system now\n");
}
else
{
login();
}
}
// 清理输入缓冲区
/*void clear_stdin(void)
{
stdin->_IO_read_ptr = stdin->_IO_read_end;//清理输入缓冲区
}
*/
// 读取输入字符串
char* get_str(char* str, size_t len)
{
if(NULL == str)
{
puts("empty ptr!");
return NULL;
}
char *in = fgets(str, len, stdin);
size_t cnt = strlen(str);
if('\n' == str[cnt-1])
{
str[cnt-1] = '\0';
}
else
{
scanf("%*[^\n]");
scanf("%*c");
}
//clear_stdin();
return str;
}
// 获取cmd命令
char get_cmd(char start, char end)
{
//clear_stdin();
printf("please entry cmd:");
while(true)
{
char val = getch();
if(val >= start && val <= end)
{
printf("%c\n",val);
return val;
}
}
}
TCP联网版(win)
先运行服务端,再运行客户端
因为懒,阉割了联网版的旅客信息修改功能。
编译参考
gcc server.c -lwsock32 -o server
效果如下:
client.c
同理这里也是Windows版本,使用winsock实现tcp
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <stdbool.h>
//#include "getch.h"
#include <conio.h>
#include <WinSock2.h>
#pragma comment(lib,"ws2_32.lib")
void start_sys(void); // 系统开始运行
char *send_cmd_recv_val(char* cmd); // 发送命令,接收返回
void show_flight(void); // 显示航班表
void exit_sys(void); // 退出系统
void menu(void); // 生成主菜单
void login(void); // 登录
void logout(void); // 用户登出
void passenger_info(void); // 查询旅客信息
void search_start(void); // 生成查询页面
char* search(void); // 查询航班
void order_list(void); // 生成订单表
void del_order(void); // 退票
char* get_str(char* str,size_t len); // 获取字符串
char get_cmd(char start,char end); // 获取cmd命令
int main(int argv, char* argc[])
{
system("chcp 65001");
printf("编码转换完毕\n");
start_sys();
exit_sys();
return 0;
}
// 发送命令,接收返回
char *send_cmd_recv_val(char* cmd)
{
//初始化
WSADATA wsaData;
WSAStartup(MAKEWORD(2, 2), &wsaData);
//创建套接字
SOCKET clntSock = socket(PF_INET, SOCK_STREAM, IPPROTO_TCP);
//向服务器发送消息
struct sockaddr_in sockAddr;
memset(&sockAddr, 0, sizeof(sockAddr)); //每个字节都用0填充
sockAddr.sin_family = PF_INET;
sockAddr.sin_addr.S_un.S_addr = inet_addr("127.0.0.1");
sockAddr.sin_port = htons(8888);
connect(clntSock, (SOCKADDR*)& sockAddr, sizeof(SOCKADDR));
static char buf[10240] = {0};
// buf置0
memset(buf, 0, sizeof(buf));
send(clntSock, cmd, strlen(cmd) + sizeof(char), 0);
recv(clntSock, buf, 10240, 0);
//关闭套接字
closesocket(clntSock);
//终止dll
WSACleanup();
return buf;
}
// 显示航班表
void show_flight(void)
{
printf("%s\n", send_cmd_recv_val("show_flight"));
}
// 系统开始运行
void start_sys(void)
{
// 进入系统的业务流程控制
//printf("系统开始运行...\n");
//show_flight();
while(true)
{
menu();
switch(get_cmd('0','6')) // 获取键盘输入
{
case '1': search_start(); break;
case '2': order_list(); break;
case '3': del_order(); break;
case '4': passenger_info(); break;
case '5': login(); break;
case '6': logout(); break;
case '0': return;
}
}
}
// 系统结束
void exit_sys(void)
{
printf("%s\n", send_cmd_recv_val("exit_sys"));
}
// 生成主菜单
void menu(void)
{
printf("\n");
printf("*********************************\n");
printf("| |\n");
printf("| 飞机订票系统 |\n");
printf("* 1.查询航班 *\n"); //查询航班
printf("| 2.查询订票信息 |\n"); //查询订票信息
printf("* 3.退订 *\n"); //退订
printf("| 4.查询旅客信息 |\n"); //查询旅客信息
printf("| 5.用户登录 |\n"); //用户登录
printf("* 6.用户登出 *\n"); //用户登出
printf("| 0.退出系统 |\n"); //退出系统
printf("| |\n");
printf("*********************************\n");
//printf("\n");
}
// 登录
void login(void)
{
char entry_pid[20]; //临时变量身份证
char entry_pw[20]; //临时变量密码
printf("请登录!\n");
printf("请输入pid:");
get_str(entry_pid, 20);
printf("请输入密码:");
get_str(entry_pw, 20);
char buf[1024] = {0};
snprintf(buf, 1024, "login pid:%s pw:%s", entry_pid, entry_pw);
printf("%s\n", send_cmd_recv_val(buf));
}
// 用户登出
void logout(void)
{
printf("%s\n", send_cmd_recv_val("logout"));
}
// 查询旅客信息
void passenger_info(void)
{
printf("%s\n", send_cmd_recv_val("passenger_info"));
}
// 开始查询航班
void search_start(void)
{
char buf[10240] = {0};
snprintf(buf, 10240, "%s", search());
if(strncmp(buf, "起始地 或 目的地 不能为空\n", 50) != 0 && strncmp(buf, "没有航班\n", 50) != 0)
{
printf("1.订票\n");
printf("0.返回\n");
char cmd = get_cmd('0', '1');
memset(buf, 0, sizeof(buf));
if(cmd == '0')
{
snprintf(buf, 10240, "%s", send_cmd_recv_val("0.返回"));
printf("%s", buf);
return;
//start_sys();
}
else
{
snprintf(buf, 10240, "%s", send_cmd_recv_val("1.订票"));
char fid[20]; // 选择的航班号
printf("请输入fid:");
get_str(fid, 20);
snprintf(buf, 1024, "order_ticket fid:%s", fid);
printf("%s\n", send_cmd_recv_val(buf));
}
}
}
// 查询航班
char* search(void)
{
char start[10] = {0};
char end[10] = {0};
printf("起始地: \n");
get_str(start, 10);
printf("目的地: \n");
get_str(end, 10);
char buf[1024] = {0};
static char buf2[10240] = {0};
memset(buf2, 0, sizeof(buf2));
snprintf(buf, 1024, "search start:%s end:%s", start, end);
snprintf(buf2, 10240, "%s", send_cmd_recv_val(buf));
printf("%s", buf2);
return buf2;
}
// 输出订单信息
void order_list(void)
{
printf("%s\n", send_cmd_recv_val("order_list"));
}
// 删除订单
void del_order(void)
{
printf("%s\n", send_cmd_recv_val("order_list"));
char fid[20];
printf("请输入要删除的fid:");
get_str(fid, 20);
char buf[1024] = {0};
snprintf(buf, 1024, "del_order fid:%s", fid);
printf("%s\n", send_cmd_recv_val(buf));
}
// 读取输入字符串
char* get_str(char* str, size_t len)
{
if(NULL == str)
{
puts("空指针!");
return NULL;
}
char *in = fgets(str, len, stdin);
size_t cnt = strlen(str);
if('\n' == str[cnt-1])
{
str[cnt-1] = '\0';
}
else
{
scanf("%*[^\n]");
scanf("%*c");
}
//clear_stdin();
return str;
}
// 获取cmd命令
char get_cmd(char start, char end)
{
//clear_stdin();
printf("请输入命令:");
while(true)
{
char val = getch();
if(val >= start && val <= end)
{
printf("%c\n",val);
return val;
}
}
}
server.c
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <stdbool.h>
//#include "getch.h"
#include <conio.h>
#include <WinSock2.h>
#pragma comment(lib,"ws2_32.lib") //加载ws2_32.dll
#define MAX_Flight 50 // 最大航班数
#define MAX_Passenger 20 // 单航班最多乘客数
#define MAX_Order 50 // 最大订票数
typedef struct Flight
{
char fid[20]; //航班号
char fname[20]; //航班名称
char start[10]; //起点
char end[10]; //终点
int fnum; //票数
}Flight;
typedef struct Passenger
{
char pid[20]; //身份证
char pname[10]; //姓名
char password[20]; //密码
char tell[20]; //电话
}Passenger;
typedef struct Order
{
char pid[20]; //身份证
char fid[20]; //航班号
int num; //票数
}Order;
Flight *FLI; // 定义全局变量
Passenger *PAS;
Order *ORD;
char search_fid[50][20]; // 符合条件的航班号
int search_fnum[50]; // 符合条件的航班票数
int online = 0; // 是否登录的变量
char online_pid[20]; // 在线用户的身份证
int search_num = 0; // 符合条件的航班数
char *get_request_content(char *src, char *content, int max_len); // 解析请求的内容
void init_sys(void); // 系统初始化
char* show_flight(void); // 显示航班表
void exit_sys(void); // 退出系统
char* login(char* pid, char* pw); // 登录
char* logout(void); // 用户登出
char* passenger_info(void); // 查询旅客信息
char* order_ticket(char* fid); // 生成查询页面
char* search(char* start, char* end); // 查询航班
char* order_list(void); // 生成订单表
char* del_order(char* fid); // 退票
char* get_str(char* str,size_t len); // 获取字符串
char get_cmd(char start,char end); // 获取cmd命令
// 主函数
int main(int argv, char* argc[])
{
system("chcp 65001");
printf("编码转换完毕\n");
// 系统初始化
init_sys();
// 初始化
WSADATA wsaData;
WSAStartup(MAKEWORD(2, 2), &wsaData);
//创建套接字
SOCKET servSock = socket(PF_INET, SOCK_STREAM, IPPROTO_TCP);
//绑定套接字
struct sockaddr_in sockAddr;
memset(&sockAddr, 0, sizeof(sockAddr)); //每个字节用0填充
sockAddr.sin_family = PF_INET; //使用ipv4
sockAddr.sin_addr.S_un.S_addr = inet_addr("127.0.0.1");
sockAddr.sin_port = htons(8888); //端口
bind(servSock, (SOCKADDR*)&sockAddr, sizeof(SOCKADDR));
//进入监听状态
listen(servSock, 20);
char cmd[1024] = {0};
char buf[10240] = {0};
for(;;)
{
// 接收客户端消息
SOCKADDR clntAddr;
int nSize = sizeof(SOCKADDR);
SOCKET clntSock = accept(servSock, (SOCKADDR*)&clntAddr, &nSize);
memset(cmd, 0, sizeof(cmd));
memset(buf, 0, sizeof(buf));
printf("收到客户端命令:");
recv(clntSock, cmd, 1024, 0);
printf("%s\n", cmd);
if(NULL != strstr(cmd, "exit_sys"))
{
//关闭套接字
closesocket(clntSock);
break;
}
else if(NULL != strstr(cmd, "search"))
{
char* start = get_request_content(cmd, "start:", 20);
char* end = get_request_content(cmd, "end:", 20);
snprintf(buf, 10240, "%s", search(start, end));
send(clntSock, buf, strlen(buf) + sizeof(char), 0);
}
else if(0 == strncmp(cmd, "1.订票", 10))
{
snprintf(buf, 1024, "订票...\n");
send(clntSock, buf, strlen(buf) + sizeof(char), 0);
}
else if(0 == strncmp(cmd, "0.返回", 10))
{
snprintf(buf, 1024, "返回...\n");
send(clntSock, buf, strlen(buf) + sizeof(char), 0);
}
else if(NULL != strstr(cmd, "order_ticket"))
{
char* fid = get_request_content(cmd, "fid:", 20);
snprintf(buf, 1024, "%s", order_ticket(fid));
send(clntSock, buf, strlen(buf) + sizeof(char), 0);
}
else if(NULL != strstr(cmd, "order_list"))
{
snprintf(buf, 10240, "%s", order_list());
send(clntSock, buf, strlen(buf) + sizeof(char), 0);
}
else if(NULL != strstr(cmd, "del_order"))
{
char* fid = get_request_content(cmd, "fid:", 20);
snprintf(buf, 10240, "%s", del_order(fid));
}
else if(NULL != strstr(cmd, "passenger_info"))
{
snprintf(buf, 10240, "%s", passenger_info());
send(clntSock, buf, strlen(buf) + sizeof(char), 0);
}
else if(NULL != strstr(cmd, "login"))
{
char* pid = get_request_content(cmd, "pid:", 20);
char* pw = get_request_content(cmd, "pw:", 20);
snprintf(buf, 10240, "%s", login(pid, pw));
send(clntSock, buf, strlen(buf) + sizeof(char), 0);
}
else if(NULL != strstr(cmd, "logout"))
{
snprintf(buf, 10240, "%s", logout());
send(clntSock, buf, strlen(buf) + sizeof(char), 0);
}
else
{
snprintf(buf, 20, "错误命令!");
send(clntSock, buf, strlen(buf) + sizeof(char), 0);
}
//关闭套接字
closesocket(clntSock);
}
//关闭套接字
closesocket(servSock);
//终止dll使用
WSACleanup();
exit_sys(); // 退出系统
return 0;
}
// 解析请求的内容
char *get_request_content(char *src, char *content, int max_len)
{
char *result = (char *)malloc((max_len) * sizeof(char));
memset(result, 0, max_len);
int i = 0;
char *temp = NULL;
temp = strstr(src, content);
if (temp == NULL)
{
return NULL;
}
temp += strlen(content);
while (1)
{
if (max_len == i)
break;
if (temp[i] != ' ')
{
result[i] = temp[i];
i++;
}
else
{
break;
}
}
return result;
}
// 系统初始化
void init_sys(void)
{
// 申请堆内存、加载数据
FLI = calloc(MAX_Flight,sizeof(Flight));
PAS = calloc(MAX_Passenger,sizeof(Passenger));
ORD = calloc(MAX_Order,sizeof(Order));
printf("系统初始化中...\n");
// 以只读方式打开 order.txt,如果文件不存在则打开失败,返回值为空。
FILE* ofrp = fopen("order.txt","r");
if(NULL == ofrp) // 打开失败直接退出
{
printf("order.txt 打开失败!\n");
exit(0);
}
int i = 0;
for(i = 0; i < MAX_Order; i++) //读取文本中的数据到内存,全局变量ORD中
{
int num = 0;
num = fscanf(ofrp,"%s %s %d\n", ORD[i].pid, ORD[i].fid, &ORD[i].num);
}
FILE* ffrp = fopen("flight.txt","r");
if(NULL == ffrp)
{
printf("flight.txt 打开失败!\n");
exit(0);
}
for(i = 0; i < MAX_Flight; i++)
{
int num = 0;
num = fscanf(ffrp,"%s %s %s %s %d\n", FLI[i].fid, FLI[i].fname, FLI[i].start, FLI[i].end, &FLI[i].fnum);
}
FILE* pfrp = fopen("passenger.txt","r");
if(NULL == pfrp)
{
printf("passenger.txt 打开失败!\n");
exit(0);
}
for(i = 0; i < MAX_Passenger; i++)
{
int num = 0;
num = fscanf(pfrp,"%s %s %s %s\n", PAS[i].pid, PAS[i].pname, PAS[i].password, PAS[i].tell);
}
printf("系统初始化完毕!\n");
}
// 显示航班表
char* show_flight(void)
{
static char buf[10240] = {0};
memset(buf, 0, sizeof(buf));
int i = 0;
for(i = 0; i < MAX_Flight; i++)
{
if(strlen(FLI[i].fid) != 0)
{
snprintf(buf, 10240, "%sid:%s name:%s start:%s end:%s fnum:%d\n", buf, FLI[i].fid, FLI[i].fname, FLI[i].start, FLI[i].end,
FLI[i].fnum);
}
}
return buf;
}
// 系统结束
void exit_sys(void)
{
printf("数据插入中...\n");
FILE* ofwp = fopen("order.txt","w");
printf("准备插入 order.txt\n");
int i= 0;
for(i = 0; i < MAX_Order; i++) //数据存储回本地
{
int num = 0;
if(strlen(ORD[i].pid) != 0)
{
num = fprintf(ofwp,"%s %s %d\n", ORD[i].pid, ORD[i].fid, ORD[i].num);
//printf("insert order.txt success\n");
}
}
// 以只写方式打开文件flight.txt,如果文件不存在则创建,如果文件存在则把内容清空。
FILE* ffwp = fopen("flight.txt","w");
printf("准备插入 flight.txt\n");
for(i = 0; i < MAX_Flight; i++)
{
int num = 0;
if(strlen(FLI[i].fid) != 0)
{
num = fprintf(ffwp,"%s %s %s %s %d\n", FLI[i].fid, FLI[i].fname, FLI[i].start, FLI[i].end, FLI[i].fnum);
//printf("insert flight.txt success\n");
}
}
FILE* pfwp = fopen("passenger.txt","w");
printf("准备插入 passenger.txt\n");
for(i = 0; i < MAX_Passenger; i++)
{
int num = 0;
if(strlen(PAS[i].pid) != 0)
{
num = fprintf(pfwp,"%s %s %s %s\n", PAS[i].pid, PAS[i].pname, PAS[i].password, PAS[i].tell);
//printf("insert passenger.txt success\n");
}
}
// 释放内存、保存数据
free(FLI);
free(PAS);
free(ORD);
printf("程序退出\n");
}
// 登录
char* login(char* pid, char* pw)
{
static char buf[100] = {0};
memset(buf, 0, sizeof(buf));
if(online == 0) //如果没有登录
{
int i = 0;
int time = 0;
// 遍历所有乘客
for(i = 0; i < MAX_Passenger; i++)
{
// 数据长度校验
if(strlen(pid) == 0 || strlen(pw) == 0)
{
printf("pid 或 password 不能为空\n");
time++;
break;
}
// 成功匹配账号密码
else if(strcmp(PAS[i].pid, pid) == 0 && strcmp(PAS[i].password, pw) == 0)
{
snprintf(buf , 100, "登录成功!\n");
strncpy(online_pid, pid, 20);
online = 1;
return buf;
}
else if(i == MAX_Passenger-1)
{
snprintf(buf , 100, "pid 或 password 错误\n");
return buf;
}
}
}
else if(online == 1)
{
snprintf(buf , 100, "你还没登录呢\n");
return buf;
}
else
{
snprintf(buf , 100, "你已被锁定,禁止使用此系统\n");
return buf;
}
}
// 用户登出
char* logout(void)
{
static char buf[100] = {0};
memset(buf, 0, sizeof(buf));
if(online == 1) //如果已经登录
{
online = 0;
snprintf(buf, 100, "登录成功\n");
}
else if(online == -1)
{
snprintf(buf, 100, "你已被锁定,禁止使用此系统\n");
}
else
{
snprintf(buf, 100, "你还没有登录呢\n");
}
return buf;
}
// 查询旅客信息
char* passenger_info(void)
{
static char buf[100] = {0};
memset(buf, 0, sizeof(buf));
if(online == 1) //如果已经登录
{
//printf("online_pid:");
//puts(online_pid);
int i = 0;
for(i = 0; i < MAX_Passenger; i++)
{
if(strcmp(online_pid, PAS[i].pid) == 0)
{
snprintf(buf, 100, "pid:%s, pname:%s, password:%s, tell:%s\n", PAS[i].pid, PAS[i].pname, PAS[i].password, PAS[i].tell);
break;
}
}
}
else if(online == -1)
{
snprintf(buf, 100, "你已被锁定,禁止使用此系统\n");
}
else
{
snprintf(buf, 100, "你还没有登录呢\n");
}
return buf;
}
// 订票
char* order_ticket(char* fid)
{
static char buf[100] = {0};
memset(buf, 0, sizeof(buf));
if(online == 1) // 如果已经登录
{
if(0 == strlen(fid))
{
snprintf(buf, 100, "fid 为空\n");
return buf;
}
int i = 0;
for(i = 0; i < search_num; i++)
{
//printf("fid:%s s_fid:%s num:%d\n",fid,search_fid[i],search_fnum[i]);
if(strcmp(fid,search_fid[i]) == 0 && search_fnum[i] > 0) //查询到对应航班
{
snprintf(buf, 100, "订票成功\n");
int j = 0;
for(j = 0; j < MAX_Flight; j++) // 遍历航班表
{
if(strcmp(fid, FLI[j].fid) == 0)
{
FLI[j].fnum--; //票数减1
break;
}
}
int k = 0;
for(k = 0; k < MAX_Order; k++) // 遍历订票表
{
//printf("ready insert...\n");
if(strlen(ORD[k].pid) == 0) // 在空位置插入数据
{
strcpy(ORD[k].pid, online_pid); // 插入当前用户身份证
strcpy(ORD[k].fid, search_fid[i]); // 插入当前选择的航班号
ORD[k].num = 1;
printf("插入订票信息成功\n");
break;
}
}
return buf;
}
else if(strcmp(fid,search_fid[i]) == 0 && search_fnum[i] == 0)
{
snprintf(buf, 100, "无票\n");
return buf;
}
else if(i == MAX_Flight-1)
{
snprintf(buf, 100, "不存在此fid\n");
return buf;
}
}
}
else if(online == -1)
{
snprintf(buf, 100, "你已被锁定,禁止使用此系统\n");
return buf;
}
else
{
snprintf(buf, 100, "请登录!\n");
return buf;
}
}
// 查询航班
char* search(char* start, char* end)
{
printf("[函数()] 进入 search(%s, %s)\n", start, end);
static char buf[10240] = {0};
memset(buf, 0, sizeof(buf));
int i = 0;
search_num = 0;
// 遍历所有航班
for(i = 0; i < MAX_Flight; i++)
{
if(strlen(start) == 0 || strlen(end) == 0)
{
snprintf(buf, 10240, "start 或 end 不能为空\n");
printf("%s", buf);
return buf;
}
if(strcmp(FLI[i].start, start) == 0 && strcmp(FLI[i].end, end) == 0)
{
snprintf(buf, 10240, "%sfid:%s, 票数:%d\n", buf, FLI[i].fid, FLI[i].fnum);
strncpy(search_fid[search_num], FLI[i].fid, 20);
search_fnum[search_num] = FLI[i].fnum;
//printf("search_fid[%d]:%s, search_fun[%d]:%d\n",search_num,search_fid[search_num],search_num,search_fnum[search_num]);
++search_num;
}
if(0 == search_num && i == MAX_Flight-1)
{
snprintf(buf, 10240, "没有航班\n");
printf("%s", buf);
return buf;
}
if(search_num > 0 && i == MAX_Flight-1)
{
printf("%s", buf);
return buf;
}
}
return buf;
}
// 输出订单信息
char* order_list(void)
{
static char buf[10240] = {0};
memset(buf, 0, sizeof(buf));
if(online == 1)
{
int i = 0;
for(i = 0; i < MAX_Order; i++)
{
if(strcmp(online_pid, ORD[i].pid) == 0)
{
//printf("online_pid:%s\n",online_pid);
snprintf(buf, 10240, "%sfid:%s, pid:%s, ticket:%d\n", buf, ORD[i].fid, ORD[i].pid, ORD[i].num);
}
}
}
else if(online == -1)
{
snprintf(buf, 100, "你已被锁定,禁止使用此系统\n");
}
else
{
snprintf(buf, 100, "请登录!\n");
}
return buf;
}
// 删除订单
char* del_order(char* fid)
{
printf("[函数()] 进入 del_order(%s)\n", fid);
static char buf[100] = {0};
memset(buf, 0, sizeof(buf));
if(online == 1)
{
int i = 0;
// 遍历所有订单
for(i = 0; i < MAX_Order; i++)
{
if(strlen(fid) == 0) //判空
{
snprintf(buf, 100, "del_order 的 fid 不能为空\n");
return buf;
}
if(strcmp(fid, ORD[i].fid) == 0)
{
memset(ORD[i].pid, '\0', sizeof(ORD[i].pid));
int j = 0;
for(j = 0; j < MAX_Flight; j++)
{
if(strcmp(fid, FLI[j].fid) == 0)
{
FLI[j].fnum++; // 返还飞机票
break;
}
}
snprintf(buf, 100, "删除成功\n");
return buf;
}
}
}
else if(online == -1)
{
snprintf(buf, 100, "你已被锁定,禁止使用此系统\n");
}
else
{
snprintf(buf, 100, "请登录!\n");
}
printf("%s", buf);
return buf;
}
// 清理输入缓冲区
/*void clear_stdin(void)
{
stdin->_IO_read_ptr = stdin->_IO_read_end;//清理输入缓冲区
}
*/
// 读取输入字符串
char* get_str(char* str, size_t len)
{
if(NULL == str)
{
puts("空指针!");
return NULL;
}
char *in = fgets(str, len, stdin);
size_t cnt = strlen(str);
if('\n' == str[cnt-1])
{
str[cnt-1] = '\0';
}
else
{
scanf("%*[^\n]");
scanf("%*c");
}
//clear_stdin();
return str;
}
// 获取cmd命令
char get_cmd(char start, char end)
{
//clear_stdin();
printf("请输入命令:");
while(true)
{
char val = getch();
if(val >= start && val <= end)
{
printf("%c\n",val);
return val;
}
}
}
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