Java怎么获取硬盘序列号
在计算机中,硬盘序列号是一个用于唯一标识硬盘的重要信息,在很多场景下,我们可能需要获取硬盘的序列号,硬盘故障排查、硬件信息查询等,本文将介绍如何使用Java编程语言获取硬盘序列号。
使用Windows API函数
在Windows操作系统中,可以使用SystemInformation类提供的GetVolumeInformation方法来获取硬盘序列号,需要导入以下命名空间:
import com.sun.jna.platform.win32.WinDef; import com.sun.jna.platform.win32.WinNT; import com.sun.jna.ptr.IntByReference; import com.sun.jna.platform.win32.Kernel32; import com.sun.jna.platform.win32.WinBase; import com.sun.jna.platform.win32.WinError; import com.sun.jna.platform.win32.WinFile; import com.sun.jna.platform.win32.WinReg; import com.sun.jna.platform.win32.WinUtils; import com.sun.jna.ptr.ByteByReference; import com.sun.jna.ptr.PointerByReference;
接下来,定义一个枚举类型,表示需要查询的磁盘设备类型:
public enum DiskDriveType { FILE_DEVICE_DISK(0x80000000), // 磁盘驱动器类型 FILE_DEVICE_CDROM(0x20000000), // CD-ROM驱动器类型 FILE_DEVICE_CHARACTER_LITERAL_DISK(0x90000000); // 字符型实盘驱动器类型 private final int value; DiskDriveType(int value) { this.value = value; } public int getValue() { return value; } }
编写一个方法,使用GetVolumeInformation方法获取硬盘序列号:
public static String getDiskSerialNumber(String driveLetter) throws Exception { int diskIndex = WinUtils.getLogicalDriveIndex(driveLetter); if (diskIndex == -1) { throw new Exception("无效的驱动器字母: " + driveLetter); } int bufferSize = Math.max(256, WinBase.MAX_PATH); byte[] buffer = new byte[bufferSize]; int bytesReturned = WinBase.INSTANCE.GetVolumeInformation(new WinDef.LPSTR(driveLetter), buffer, bufferSize, null, null, null, null); if (bytesReturned == WinError.ERROR_MORE_DATA) { buffer = Arrays.copyOf(buffer, bufferSize * 2); bytesReturned = WinBase.INSTANCE.GetVolumeInformation(new WinDef.LPSTR(driveLetter), buffer, bufferSize, null, null, null, null); } else if (bytesReturned != WinError.SUCCESS) { throw new Exception("获取硬盘序列号失败,错误代码: " + bytesReturned); } Kernel32 kernel32 = Native.loadLibrary("kernel32", Kernel32.class); PointerByReference serialNumberPointer = new PointerByReference(); kernel32.GetVolumeInformationW(new WString("\\\\?\\" + driveLetter), buffer, bufferSize, serialNumberPointer, null, null, null); int serialNumberLength = serialNumberPointer.getValue().getWideCharCount(); int charsToCopy = Math.min(serialNumberLength, bufferSize); ByteBuffer serialNumberBytes = ByteBuffer.allocate(charsToCopy * 2).order(ByteOrder.nativeOrder()); serialNumberPointer.getValue().read(0, serialNumberBytes, charsToCopy); String serialNumber = new String(WStringUtility.toByteArray(serialNumberBytes)); return serialNumber; }
使用第三方库:com/github/wnameless/jsonrpc4j/core/JsonRpcHttpClientFactorycreateClient()和com/github/wnameless/jsonrpc4j/api/JsonRpcApiexecuteAsync()方法可以实现异步调用,具体步骤如下
1)添加依赖:在项目的pom文件中添加以下依赖:<dependency> <groupId>com.github</groupId> <artifactId>jsonrpc4j</artifactId> <version>1.5.3</version> </dependency>,其中版本号可以根据实际需求进行调整。
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