JNA调用DLL

1.引入pom

<dependency>
            <groupId>net.java.dev.jna</groupId>
            <artifactId>jna</artifactId>
            <version>5.2.0</version>
        </dependency>
        <dependency>
            <groupId>net.java.dev.jna</groupId>
            <artifactId>jna-platform</artifactId>
            <version>5.2.0</version>
        </dependency>

2.JnaDemo

import com.sun.jna.Library;
import com.sun.jna.Native;
import com.sun.jna.Platform;

public class JnaDemo {
    public interface CLibrary extends Library {
        //调用动态链接库c://windows/system32/msvcrt.dll中的printf函数输出hello world
        CLibrary INSTANCE = (CLibrary)Native.loadLibrary((Platform.isWindows() ? "msvcrt" : "c"),CLibrary.class);
        void printf(String format, Object... args);
    }

    public static void main(String[] args) {
        CLibrary.INSTANCE.printf("Hello, World\n");//调用printf函数

    }
}

3.输出结果

Hello, World

Process finished with exit code 0