如何使用tika从ppt中提取内容？

import org.apache.tika.Tika;
import java.io.File;
import java.io.FileInputStream;
import java.io.IOException;

public class PPTExtractor {
    public static void main(String[] args) {
        File pptFile = new File("path/to/your/ppt/file.ppt");
        
        try {
            FileInputStream fis = new FileInputStream(pptFile);
            Tika tika = new Tika();
            String content = tika.parseToString(fis);
            System.out.println(content);
            fis.close();
        } catch (IOException e) {
            e.printStackTrace();
        }
    }
}