java使用特定编码做文件名读写文件

JnaFileTest.java

import com.sun.jna.*;
public class JnaFileTest {
    private static final String fileName = "我一定会回来的";
    private static final String fileContent = "随便写点什么都一样，";
    public static void main(String args[]) throws Exception {
        JNAApiInterface jnaLib = JNAApiInterface.INSTANCE;
        var fp = jnaLib.fopen(fileName.getBytes("GBK"), "w+");
        jnaLib.fputs(fileContent, fp);
        jnaLib.fseek(fp, 0, 0);
        var lenght = fileContent.getBytes().length;
        var buf = new byte[lenght + 1];
        jnaLib.fgets(buf, buf.length, fp);
        var readContent = new String(buf, 0, lenght);
        System.out.println(readContent);
    }
}
 interface JNAApiInterface extends Library {
    JNAApiInterface INSTANCE = (JNAApiInterface) Native.loadLibrary(("c"), JNAApiInterface.class);
    Pointer fopen(byte[] filename, String mode);
    Pointer fputs(String str, Pointer fp);
    Pointer fgets(byte[] str, int n, Pointer fp);
    int fseek(Pointer fp, long offset, int origin);
}