java调用c++ dll

public class DllTest {
    public interface CLibrary extends Library {
        CLibrary INSTANCE =
                Native.load("Dll1",
                        CLibrary.class);

        int add(int a, int b);
    }

    public static void main(String[] args) {
        int add = CLibrary.INSTANCE.add(1, 2);
        System.out.println(add);
    }
}

    net.java.dev.jna
    jna
    5.10.0