Qt知识点梳理 —— 获取设备CPU，java技术栈

WMIC指令

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在Windows环境下，我们可以通过使用WMIC获取设备的硬件信息，如下：

wmic cpu get Name //获取CPU名称

wmic cpu get NumberOfCores //获取CPU核心数

wmic cpu get NumberOfLogicalProcessors //获取CPU线程数

wmic cpu get processorid //获取CPU序列号

wmic baseboard get serialnumber //获取主板序列号

wmic csproduct //获取主板信息

wmic bios get serialnumber //获取BIOS序列号

wmic diskdrive get serialnumber //获取磁盘序列号

wmic logicaldisk get name,Description,filesystem,size,freespace //获取磁盘信息

wmic diskdrive where index=0 get serialnumber //获取第一个磁盘序列号

wmic nic where netconnectionid!=NULL get MacAddress //获取不为空的MAC地址

wmic memorychip get Capacity,TAG //获取内存信息

wmic os get Caption,CSDVersion,CSName,SerialNumber,Version //获取操作系统系统信息

使用，将上述指令传入即可：

//调用Windows WMIC指令 获取硬件信息 此方法仅适用于Windows环境

QString GetHardWare::GetWare(QString cmd)

{

QProcess p;

p.start(cmd);

p.waitForFinished();

QString result = QString::fromLocal8Bit(p.readAllStandardOutput());

QStringList list = cmd.split(" ");

result = result.remove(list.last(), Qt::CaseInsensitive);

result = result.replace("\r", “”);

result = result.replace("\n", “”);

result = result.simplified();

return result;

}

具体实现

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获取电脑名称

如果此处报错，这里没详细描述，可查看：【Qt/C++异常笔记】“QHostInfo”: 不是类或命名空间名称

//获取电脑名字

QString GetHardWare::getMachineName()

{

QString machineName = QHostInfo::localHostName();

return machineName;

}

获取CPU信息

如：Intel® Core™ i7-8750H CPU @ 2.20GHz

//获取CPU信息

QString GetHardWare::getCpuInfo()

{

return GetWare(“wmic cpu get name”);

}

获取CPU序列号

//获取CPU序列号

QString GetHardWare::getCpuSerial()

{

return GetWare(“wmic cpu get processorid”);

}

获取内存信息

返回信息依次为：已使用内存大小、未使用内存大小、总内存大小，单位为MB；

如：(“5041”, “3001”, “8042”)

//获取内存信息

//返回信息依次为：已使用内存大小、未使用内存大小、总内存大小，单位为MB

//如：(“5041”, “3001”, “8042”)

QStringList GetHardWare::getMemoryInfo()

{

QStringList m_memInfo;

int memoryPercent;

int memAll;

int memUse;

int memFree;

MEMORYSTATUSEX statex;

statex.dwLength = sizeof (statex);

GlobalMemoryStatusEx(&statex);

memoryPercent = statex.dwMemoryLoad;

memAll = statex.ullTotalPhys / MB;

memFree = statex.ullAvailPhys / MB;

memUse = memAll - memFree;

m_memInfo.append(QString::number(memUse));

m_memInfo.append(QString::number(memFree));

m_memInfo.append(QString::number(memAll));

return m_memInfo;

}

获取第一个磁盘序列号

//获取第一个磁盘序列号

QString GetHardWare::getDiskSerial()

{

return GetWare(“wmic diskdrive where index=0 get serialnumber”);//只能在Windows环境下使用

}

获取磁盘信息

返回信息依次为：磁盘名称、已使用空间大小、未使用空间大小、总空间大小、使用百分比；

如： ((“C:/”, “92.9G”, “122.5G”, “215.5G”, “43”),

(“D:/”, “175.8G”, “135.2G”, “311.0G”, “56”),

(“E:/”, “90.9G”, “220.1G”, “311.0G”, “29”),

(“F:/”, “243.1G”, “66.4G”, “309.5G”, “78”))

//获取磁盘信息

//返回信息依次为：磁盘名称、已使用空间大小、未使用空间大小、总空间大小、使用百分比

//如： ((“C:/”, “92.9G”, “122.5G”, “215.5G”, “43”),

// (“D:/”, “175.8G”, “135.2G”, “311.0G”, “56”),

// (“E:/”, “90.9G”, “220.1G”, “311.0G”, “29”),

// (“F:/”, “243.1G”, “66.4G”, “309.5G”, “78”))

QList GetHardWare::getDiskInfo()

{

QList diskList;

QFileInfoList list = QDir::drives();

foreach (QFileInfo dir, list)

{

QStringList curDisk;

QString dirName = dir.absolutePath();

LPCWSTR lpcwstrDriver = (LPCWSTR)dirName.utf16();

ULARGE_INTEGER liFreeBytesAvailable, liTotalBytes, liTotalFreeBytes;

if(GetDiskFreeSpaceEx(lpcwstrDriver, &liFreeBytesAvailable, &liTotalBytes, &liTotalFreeBytes) )

{

//已使用的空间大小

QString use = QString::number((double) (liTotalBytes.QuadPart - liTotalFreeBytes.QuadPart) / GB, ‘f’, 1);

use += “G”;

//未使用的空间大小

QString free = QString::number((double) liTotal

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FreeBytes.QuadPart / GB, ‘f’, 1);

free += “G”;

//总空间大小

QString all = QString::number((double) liTotalBytes.QuadPart / GB, ‘f’, 1);

all += “G”;

//使用率百分比

int percent = 100 - ((double)liTotalFreeBytes.QuadPart / liTotalBytes.QuadPart) * 100;

curDisk.append(dirName);

curDisk.append(use);

curDisk.append(free);

curDisk.append(all);

curDisk.append(QString::number(percent));

}

diskList.append(curDisk);

}

return diskList;

}

获取操作系统信息

如：Windows 10 Version 1909 64bit

//获取系统信息

//如：Intel® Core™ i7-8750H CPU @ 2.20GHz

QString GetHardWare::getOSInfo()

{

QString m_osInfo;

typedef BOOL (WINAPI *LPFN_ISWOW64PROCESS) (HANDLE, PBOOL);

LPFN_ISWOW64PROCESS fnIsWow64Process;

BOOL bIsWow64 = FALSE;

fnIsWow64Process = (LPFN_ISWOW64PROCESS)GetProcAddress( GetModuleHandle(TEXT(“kernel32”)),“IsWow64Process”);

if (NULL != fnIsWow64Process)

{

fnIsWow64Process(GetCurrentProcess(),&bIsWow64);

}

QString sysBit = “unknown”;

if(bIsWow64)

sysBit = “64bit”;

else

sysBit = “32bit”;

m_osInfo = QSysInfo::prettyProductName() + " " + sysBit;

return m_osInfo;

}

获取主板序列号

//获取主板序列号

QString GetHardWare::getBiosSerial()

{

return GetWare(“wmic baseboard get serialnumber”);

}

获取网卡MAC地址

如：(“00:15:5D:A2:BD:C7”, “00:50:56:C0:00:01”, “00:50:56:C0:00:08”, “D8:F2:CA:6D:6A:2D”)

//获取所有网卡的MAC地址

//如：(“00:15:5D:A2:BD:C7”, “00:50:56:C0:00:01”, “00:50:56:C0:00:08”, “D8:F2:CA:6D:6A:2D”)

QStringList GetHardWare::getMacAddress()

{

QStringList macList;

QList netList = QNetworkInterface::allInterfaces();

foreach(QNetworkInterface item, netList)//遍历所有网卡

{

if((QNetworkInterface::IsUp & item.flags()) && (QNetworkInterface::IsRunning & item.flags())

&& (item.hardwareAddress().toStdString().length()>0))

{

macList.append(item.hardwareAddress());

}

}

return macList;

}