jna 现成的java调用jna项目 包括jna.jar

package com.sun.jna.test; import com.sun.jna.Library; import com.sun.jna.Native; import com.sun.jna.Platform; public class HelloJna { //定义接口CLibrary，继承自com.sun.jna.Library public interface CLibrary extends Library { //定义并初始化接口的静态变量 CLibrary Instance=(CLibrary)Native.loadLibrary((Platform.isWindows()?"msvcrt":"c"),CLibrary.class); //printf函数声明 void printf(String format, Object... args); } public static void main(String[] args) { //调用printf打印信息 CLibrary.Instance.printf("Hello, JNA!\n"); } }