JNA가 의존하는 여러 DLL 라이브러리를 로드하는 방법

JNA의 등장은 기존의 JNI 기술을 크게 간소화시켰다.다음은 JNA github 주소입니다.https://github.com/java-native-access/jna
1. 간단한 예:

/** Simple example of JNA interface mapping and usage. */
public class HelloWorld {

    public interface CLibrary extends Library {
        CLibrary INSTANCE = (CLibrary)Native.loadLibrary((Platform.isWindows() ? "msvcrt" : "c"), CLibrary.class);
        
        void printf(String format, Object... args);	// void printf(const char *format, [argument]);        
    }

    public static void main(String[] args) {
        CLibrary.INSTANCE.printf("Hello, World
");
        for (int i=0; i < args.length; i++) {
            CLibrary.INSTANCE.printf("Argument %d: %s
", i, args[i]);
        }
    }    
}

Clibrary extends Libarary를 통해 시스템의 DLL/so 라이브러리를 불러오고 자바에서 호출할 DLL 라이브러리 함수를 열거하며 이 함수는 DLL 라이브러리 함수에 직접 JNA로 비추어 완성된다.
이렇게 하면 DLL/so 라이브러리의 함수를 호출할 수 있습니다.
2. JNA를 사용하여 여러 DLL 라이브러리를 로드하는 방법 및 종속성
http://stackoverflow.com/questions/32609829/load-multiple-libraries-with-jna
Is there a way in JNA to load multiple libraries with Java?
I usually use  Native.loadLibrary(...)  to load one DLL. But I guess its not working this way because I assign this function call to the instance member.
Let's say I have library  foo  and library  bar .  bar  has a dependency on  foo ; it also has a dependency on  baz , which we are not mapping with JNA:

public class Foo { public static final boolean LOADED; static { Native.register("foo"); LOADED = true; } public static native void call_foo(); } public class Bar { static { // Reference "Foo" so that it is loaded first if (Foo.LOADED) { System.loadLibrary("baz"); // Or System.load("/path/to/libbaz.so") Native.register("bar"); } } public static native void call_bar(); }

The call to  System.load/loadLibrary  will only be necessary if  baz  is neither on your library load path ( PATH/LD_LIBRARY_PATH , for windows/linux respectively) nor in the same directory as  bar (windows only).
EDIT
You can also do this via interface mapping:

public interface Foo extends Library { Foo INSTANCE = (Foo)Native.loadLibrary("foo"); } public interface Bar extends Library { // Reference Foo prior to instantiating Bar, just be sure // to reference the Foo class prior to creating the Bar instance Foo FOO = Foo.INSTANCE; Bar INSTANCE = (Bar)Native.loadLibrary("bar"); }

-----------------
3. 자신의 코드 예:

public class DDLTest {

	public static void main(String[] args){
		System.out.println(System.getProperty("java.library.path"));
		FingerLibrary.Fingerdll.ZAZCloseDeviceEx(-1);
		
		int r = ID_FprCap.fprCap.LIVESCAN_Init();
		ID_FprCap.fprCap.LIVESCAN_Close();
		ID_FprCap.fprCap.LIVESCAN_BeginCapture(1);
		ID_FprCap.fprCap.LIVESCAN_GetFPRawData(1, "aaaaaa");
		r = ID_Fpr.INSTANCE.FP_FeatureMatch("aaaaaaaaaaa", "aaaaaaaaaaa", (float)0.5);
	}	
	
	public interface FingerLibrary extends Library {
		 int FPDATASIZE = 256;
		 int IMGWIDTH = 256;
		 int IMGHEIGHT = 288;
		 int IMGSIZE = 73728;
		
		 //     
		 int WM_FPMESSAGE = 1024 + 120; //      
		 int FPM_DEVICE = 0x01; //     
		 int FPM_PLACE = 0x02; //     
		 int FPM_LIFT = 0x03; //      
		 int FPM_CAPTURE = 0x04; //     
		 int FPM_ENROLL = 0x06; //       
		 int FPM_GENCHAR = 0x05; //      
		 int FPM_NEWIMAGE = 0x07; //     
		 int RET_OK = 0x1;
		 int RET_FAIL = 0x0;
		
		 FingerLibrary Fingerdll = (FingerLibrary) Native.loadLibrary("ZAZAPIt", FingerLibrary.class);
		
		 public int ZAZOpenDeviceEx(int[] hHandle, int nDeviceType, int iCom, int iBaud, int nPackageSize, int iDevNum);
		 public int ZAZCloseDeviceEx(int handle);
		 public int ZAZVfyPwd(int pHandle, int nAddr,   byte[] pPassword);
		 public int ZAZReadInfPage(int pHandle, int nAddr,  byte[] pInf);
	     public int ZAZReadIndexTable(int pHandle, int nAddr, int nPage, byte[] UserContent);  
	     
//	     public int FP_FeatureMatch(String pFeatureData1, String pFeatureData2, float pfSimilarity);
	}
	
	
	
	public interface ID_Fpr extends Library {
		ID_Fpr INSTANCE  = (ID_Fpr)Native.loadLibrary("ID_Fpr", ID_Fpr.class);
//		public int LIVESCAN_Init();

		public int FP_FeatureMatch(String pFeatureData1, String pFeatureData2, float pfSimilarity);
		//int __stdcall FP_FeatureMatch(unsigned char * pFeatureData1,	//           1
		//		  						unsigned char * pFeatureData2,	//           2
		//		  						float * pfSimilarity);			//           0.00-1.00
		
//		typedef int (__stdcall *FP_FeatureMatch)(unsigned char * pFeatureData1,	//           1
//			 	 unsigned char * pFeatureData2,	//           2
//				 float * pfSimilarity);			//           0.00-1.00
	}
	
	public interface ID_FprCap extends StdCallLibrary {
	    ID_Fpr fpr = ID_Fpr.INSTANCE ;
	    ID_FprCap fprCap = (ID_FprCap)Native.loadLibrary("ID_FprCap", ID_FprCap.class);
	    
	    public int LIVESCAN_Init();		//int __stdcall LIVESCAN_Init();
	    public int LIVESCAN_Close();	//int __stdcall	LIVESCAN_Close();
	    public int LIVESCAN_BeginCapture(int nChannel);
	    public int LIVESCAN_GetFPRawData(int nChannel, String pRawData);
//	    int		__stdcall	LIVESCAN_BeginCapture(	int nChannel );
//	    int		__stdcall	LIVESCAN_GetFPRawData(int nChannel,unsigned char *pRawData);
	    
	    public int LIVESCAN_GetFPBmpData(int nChannel, String pBmpData);
//	    int		__stdcall	LIVESCAN_GetFPBmpData(int nChannel, unsigned char *pBmpData);

	    public int LIVESCAN_EndCapture(int nChannel);
//	    int		__stdcall	LIVESCAN_EndCapture(int nChannel );

	    public int LIVESCAN_IsSupportSetup();	    
//	    int		__stdcall	LIVESCAN_IsSupportSetup();

	    public int LIVESCAN_GetVersion();
//	    int		__stdcall	LIVESCAN_GetVersion();

	    public int LIVESCAN_GetDesc(String pszDesc);
//	    int		__stdcall	LIVESCAN_GetDesc(char pszDesc[1024]);

	    public int LIVESCAN_GetErrorInfo(int nErrorNo, String pszErrorInfo);
//	    int		__stdcall	LIVESCAN_GetErrorInfo(int nErrorNo, char pszErrorInfo[256]);	    
	}		
}