使用JNA版本3.3.0：
Kernel32.INSTANCE.GetFileInformationByHandle测试用例：
package win.test;import com.sun.jna.platform.win32.Kernel32;import com.sun.jna.platform.win32.Winbase;import com.sun.jna.platform.win32.Winbase.FILETIME;import com.sun.jna.platform.win32.WinNT.HANDLE;import win.test.Kernel32.BY_HANDLE_FILE_INFORMATION;public class FileTest { public static void main(String[] args) { //http://msdn.microsoft.com/en-us/library/windows/desktop/aa363858%28v=vs.85%29.aspx final int FILE_SHARE_READ = (0x00000001); //final int FILE_SHARE_WRITE = (0x00000002); //final int FILE_SHARE_DELETE = (0x00000004); final int OPEN_EXISTING = (3); final int GENERIC_READ = (0x80000000); //final int GENERIC_WRITE = (0x40000000); //final int FILE_FLAG_NO_BUFFERING = (0x20000000); //final int FILE_FLAG_WRITE_THROUGH = (0x80000000); //final int FILE_READ_ATTRIBUTES = (0x0080); //final int FILE_WRITE_ATTRIBUTES = (0x0100); //final int ERROR_INSUFFICIENT_BUFFER = (122); final int FILE_ATTRIBUTE_ARCHIVE = (0x20); Winbase.SECURITY_ATTRIBUTES attr = null; BY_HANDLE_FILE_INFORMATION lpFileInformation = new BY_HANDLE_FILE_INFORMATION(); HANDLE hFile = null; hFile = Kernel32.INSTANCE.CreateFile(args[0], GENERIC_READ, FILE_SHARE_READ, attr, OPEN_EXISTING, FILE_ATTRIBUTE_ARCHIVE, null); System.out.println("CreateFile last error:" + Kernel32.INSTANCE.GetLastError()); //if (hFile. != -1) { win.test.Kernel32.INSTANCE.GetFileInformationByHandle(hFile, lpFileInformation); System.out.println("CREATION TIME: " + FILETIME.filetimeToDate(lpFileInformation.ftCreationTime.dwHighDateTime, lpFileInformation.ftCreationTime.dwLowDateTime)); System.out.println("VOLUME SERIAL NO.: " + Integer.toHexString(lpFileInformation.dwVolumeSerialNumber.intValue())); System.out.println("FILE INDEX HIGH: " + lpFileInformation.nFileIndexHigh); System.out.println("FILE INDEX LOW: " + lpFileInformation.nFileIndexLow); System.out.println("GetFileInformationByHandle last error:" + Kernel32.INSTANCE.GetLastError()); } Kernel32.INSTANCE.CloseHandle(hFile); System.out.println("CloseHandle last error:" + Kernel32.INSTANCE.GetLastError()); }}样本输出：
CreateFile last error:0CREATION TIME: Tue Nov 29 22:24:04 SGT 2011VOLUME SERIAL NO.: 900c0655FILE INDEX HIGH: 1769472FILE INDEX LOW: 286306GetFileInformationByHandle last error:0CloseHandle last error:0
Kernel32 JNA实例类：
package win.test;import java.util.HashMap;import java.util.Map;import com.sun.jna.Library;import com.sun.jna.Native;import com.sun.jna.Pointer;import com.sun.jna.Structure;import com.sun.jna.WString;import com.sun.jna.platform.win32.Winbase.FILETIME;import com.sun.jna.platform.win32.WinDef.DWORD;import com.sun.jna.platform.win32.WinNT.HANDLE;import com.sun.jna.win32.StdCallLibrary;import com.sun.jna.win32.W32APIFunctionMapper;import com.sun.jna.win32.W32APITypeMapper;public interface Kernel32 extends StdCallLibrary { final static Map<String, Object> WIN32API_OPTIONS = new HashMap<String, Object>() { private static final long serialVersionUID = 1L; { put(Library.OPTION_FUNCTION_MAPPER, W32APIFunctionMapper.UNICODE); put(Library.OPTION_TYPE_MAPPER, W32APITypeMapper.UNICODE); } }; public Kernel32 INSTANCE = (Kernel32) Native.loadLibrary("Kernel32", Kernel32.class, WIN32API_OPTIONS); public int GetLastError(); public class BY_HANDLE_FILE_INFORMATION extends Structure { public DWORD dwFileAttributes; public FILETIME ftCreationTime; public FILETIME ftLastAccessTime; public FILETIME ftLastWriteTime; public DWORD dwVolumeSerialNumber; public DWORD nFileSizeHigh; public DWORD nFileSizeLow; public DWORD nNumberOflinks; public DWORD nFileIndexHigh; public DWORD nFileIndexLow; public static class ByReference extends BY_HANDLE_FILE_INFORMATION implements Structure.ByReference { }; public static class ByValue extends BY_HANDLE_FILE_INFORMATION implements Structure.ByValue { }; }; boolean GetFileInformationByHandle( HANDLE hFile, BY_HANDLE_FILE_INFORMATION lpFileInformation );}
