JNA
package jna; import com.sun.jna.Library; import com.sun.jna.Native; public class pro { static String PATH = "C:/data/ex071003.dll"; public static void main(String[] args) { pro test=new pro(); } pro(){ Sample lib = Sample.ex; System.out.println(lib.f()); } interface Sample extends Library{ Sample ex = (Sample) Native.loadLibrary(PATH, Sample.class); double f(); } }