VC++海康威视视频人数流量统计数据库连接

第一次使用VC++二次开发海康威视设备，记录一下，直接代码

`#include
#include
#include
#include
#include
#include “Windows.h”
#include “HCNetSDK.h”
using namespace std;

//时间解析宏定义
#define GET_YEAR(time) (((time)>>26) + 2000)
#define GET_MONTH(time) (((time)>>22) & 15)
#define GET_DAY(time) (((time)>>17) & 31)
#define GET_HOUR(time) (((time)>>12) & 31)
#define GET_MINUTE(time) (((time)>>6) & 63)
#define GET_SECOND(time) (((time)>>0) & 63)

MYSQL mysql; //mysql连接
MYSQL_RES* res; //一个结果集结构体
MYSQL_ROW row; //char** 二维数组，存放一条条记录

const char DataBase_UserName[] = “homestead”; //数据库用户名username
const char DataBase_Password[] = “secret”; //数据库密码，填自己的密码
const char DataBase_Host[] = “192.168.10.10”; //数据库连接地址

const char DataBase_Name[] = “XXX”; //database name
unsigned int DataBase_Port = xxxx;

bool ConnectDatabase(); //函数申明
void FreeConnect(); //释放资源

bool ConnectDatabase()
{
//初始化mysql
mysql_init(&mysql); //连接mysql，数据库
//中间分别是主机，用户名，密码，数据库名，端口号（可以写默认0或者3306等），可以先写成参数再传进去
if (!(mysql_real_connect(&mysql, DataBase_Host, DataBase_UserName, DataBase_Password, DataBase_Name, DataBase_Port, NULL, 0)))
{
printf(“Error connecting to database:%s\n”, mysql_error(&mysql));
return false;
}
else
{
//MessageBoxA(NULL, “连接MYSQL数据成功！”, “消息”, MB_OK);
printf(“Connected…\n”);
return true;
}
}

void FreeConnect()
{
//释放资源
//mysql_free_result(res);
mysql_close(&mysql);
}

BOOL CALLBACK MessageCallback(LONG lCommand, NET_DVR_ALARMER* pAlarmer, char* pAlarmInfo, DWORD dwBufLen, void* pUser)
{
//以下代码仅供参考，实际应用中不建议在该回调函数中直接处理数据保存文件
//例如可以使用消息的方式(PostMessage)在消息响应函数里进行处理，具体可参考ClientDemo。

switch (lCommand)
{
case COMM_ALARM_PDC: //客流量统计报警信息
{
    NET_DVR_PDC_ALRAM_INFO struPDCAlarmInfo = { 0 };
    memcpy(&struPDCAlarmInfo, pAlarmInfo, sizeof(struPDCAlarmInfo));
    if (struPDCAlarmInfo.byMode == 0) //0-实时统计结果，自上次清零动作（包括设备重启、手动清零或每天零点自动清零）后开始计算的实时数量
    {
        NET_DVR_TIME  struAbsTime = { 0 };
        struAbsTime.dwYear = GET_YEAR(struPDCAlarmInfo.uStatModeParam.struStatFrame.dwAbsTime);
        struAbsTime.dwMonth = GET_MONTH(struPDCAlarmInfo.uStatModeParam.struStatFrame.dwAbsTime);
        struAbsTime.dwDay = GET_DAY(struPDCAlarmInfo.uStatModeParam.struStatFrame.dwAbsTime);
        struAbsTime.dwHour = GET_HOUR(struPDCAlarmInfo.uStatModeParam.struStatFrame.dwAbsTime);
        struAbsTime.dwMinute = GET_MINUTE(struPDCAlarmInfo.uStatModeParam.struStatFrame.dwAbsTime);
        struAbsTime.dwSecond = GET_SECOND(struPDCAlarmInfo.uStatModeParam.struStatFrame.dwAbsTime);

        //设备IP、端口、通道、离开人数、进入人数、是否Smart报警、绝对时间
        printf("DevIP0:[%s]Port[%d]Channel[%d]single frame:Channel[%d]LeaveNum[%d]EnterNum[%d]Smart[%d]\
              AbsTime[%4.4d%2.2d%2.2d%2.2d%2.2d%2.2d]\n", struPDCAlarmInfo.struDevInfo.struDevIP.sIpV4, \
            struPDCAlarmInfo.struDevInfo.wPort, struPDCAlarmInfo.struDevInfo.byChannel, \
            struPDCAlarmInfo.byChannel, struPDCAlarmInfo.dwLeaveNum, struPDCAlarmInfo.dwEnterNum, \
            struPDCAlarmInfo.bySmart, struAbsTime.dwYear, struAbsTime.dwMonth, struAbsTime.dwDay, \
            struAbsTime.dwHour, struAbsTime.dwMinute, struAbsTime.dwSecond);
        char sql[522] = "";

        sprintf_s(sql, "insert into hkws (enter,leave,obtime) values (%d,%d,%s);", struPDCAlarmInfo.dwEnterNum, struPDCAlarmInfo.dwLeaveNum, \
            to_string(struAbsTime.dwYear) + to_string(struAbsTime.dwMonth) + to_string(struAbsTime.dwDay) + to_string(struAbsTime.dwDay) + to_string(struAbsTime.dwHour) \
            + to_string(struAbsTime.dwMinute) + to_string(struAbsTime.dwSecond));

        printf(sql);

        mysql_query(&mysql, sql);



    }
    if (struPDCAlarmInfo.byMode == 1) //1-周期统计结果，设定的统计周期内增加的数量，更新频率即为设定的统计周期（默认15分钟，最小1分钟，最大60分钟）
    {
        NET_DVR_TIME  struStartTime = { 0 };
        NET_DVR_TIME  struEndTime = { 0 };
        struStartTime = struPDCAlarmInfo.uStatModeParam.struStatTime.tmStart;
        struEndTime = struPDCAlarmInfo.uStatModeParam.struStatTime.tmEnd;


        //设备IP、端口、通道、离开人数、进入人数、经过人数、是否Smart报警、开始时间、结束时间
        printf("DevIP1:[%s]Port[%d]Channel[%d]single frame:Channel[%d]LeaveNum[%d]EnterNum[%d]PassingNum[%d]Smart[%d]\
              StartTime[%4.4d%2.2d%2.2d%2.2d%2.2d%2.2d]EndTime[%4.4d%2.2d%2.2d%2.2d%2.2d%2.2d]\n",
            struPDCAlarmInfo.struDevInfo.struDevIP.sIpV4, struPDCAlarmInfo.struDevInfo.wPort, \
            struPDCAlarmInfo.struDevInfo.byChannel, struPDCAlarmInfo.byChannel, struPDCAlarmInfo.dwLeaveNum, \
            struPDCAlarmInfo.dwEnterNum, struPDCAlarmInfo.dwPassingNum, struPDCAlarmInfo.bySmart, struStartTime.dwYear, \
            struStartTime.dwMonth, struStartTime.dwDay, struStartTime.dwHour, struStartTime.dwMinute, \
            struStartTime.dwSecond, struEndTime.dwYear, struEndTime.dwMonth, struEndTime.dwDay, struEndTime.dwHour, \
            struEndTime.dwMinute, struEndTime.dwSecond);

        char sql[522] = "";

        sprintf_s(sql, "insert into hkws (`enter`,`leave`,`obtime`) values (%d,%d,'StartTime[%4.4d%2.2d%2.2d%2.2d%2.2d%2.2d]');", struPDCAlarmInfo.dwEnterNum, struPDCAlarmInfo.dwLeaveNum, \
            struStartTime.dwYear,struStartTime.dwMonth, struStartTime.dwDay, struStartTime.dwHour, struStartTime.dwMinute, struStartTime.dwSecond);

        printf(sql);

        mysql_query(&mysql, sql);
    }

    //其他信息处理......
    break;
}

default:
{
    printf("其他报警，报警信息类型: 0x%x\n", lCommand);
    break;
}
}

return TRUE;

}

void main() {
ConnectDatabase();
//---------------------------------------
// 初始化
NET_DVR_Init();
//设置连接时间与重连时间
NET_DVR_SetConnectTime(2000, 1);
NET_DVR_SetReconnect(10000, true);

//---------------------------------------
// 注册设备
LONG lUserID;

//登录参数，包括设备地址、登录用户、密码等
NET_DVR_USER_LOGIN_INFO struLoginInfo = { 0 };
struLoginInfo.bUseAsynLogin = 0; //同步登录方式
strcpy_s(struLoginInfo.sDeviceAddress, "X.X.X.X"); //设备IP地址
struLoginInfo.wPort = 8000; //设备服务端口
strcpy_s(struLoginInfo.sUserName, "XXXX"); //设备登录用户名
strcpy_s(struLoginInfo.sPassword, "XXXXXXXXX"); //设备登录密码

//设备信息, 输出参数
NET_DVR_DEVICEINFO_V40 struDeviceInfoV40 = { 0 };

lUserID = NET_DVR_Login_V40(&struLoginInfo, &struDeviceInfoV40);
if (lUserID < 0)
{
    printf("Login failed, error code: %d\n", NET_DVR_GetLastError());
    NET_DVR_Cleanup();
    return;
}

//设置报警回调函数
NET_DVR_SetDVRMessageCallBack_V31(MessageCallback, NULL);

//启用布防
LONG lHandle;
NET_DVR_SETUPALARM_PARAM  struAlarmParam = { 0 };
struAlarmParam.dwSize = sizeof(struAlarmParam);
//其他报警布防参数不需要设置，不支持

lHandle = NET_DVR_SetupAlarmChan_V41(lUserID, &struAlarmParam);
if (lHandle < 0)
{
    printf("NET_DVR_SetupAlarmChan_V41 error, %d\n", NET_DVR_GetLastError());
    NET_DVR_Logout(lUserID);
    NET_DVR_Cleanup();
    return;
}

Sleep(50000); //等待过程中，如果设备上传报警信息，在报警回调函数里面接收和处理报警信息

//撤销布防上传通道
if (!NET_DVR_CloseAlarmChan_V30(lHandle))
{
    printf("NET_DVR_CloseAlarmChan_V30 error, %d\n", NET_DVR_GetLastError());
    NET_DVR_Logout(lUserID);
    NET_DVR_Cleanup();
    return;
}
FreeConnect();
//注销用户
NET_DVR_Logout(lUserID);
//释放SDK资源
NET_DVR_Cleanup();
return;

}

`