Java HTML/XML - 如何转换两个文件

import javax.xml.transform.Source;
import javax.xml.transform.Transformer;
import javax.xml.transform.TransformerFactory;
import javax.xml.transform.stream.StreamResult;
import javax.xml.transform.stream.StreamSource;

public class Main {
  public static void main(String[] args) throws Exception {
    Source xslSource = new StreamSource(
        Main.class.getResourceAsStream("test.xsl"));
    Source xmlSource = new StreamSource(
        Main.class.getResourceAsStream("test.xml"));

    Transformer transf = TransformerFactory.newInstance().newTransformer(
        xslSource);

    StreamResult transformedXml = new StreamResult(System.out);
    transf.transform(xmlSource, transformedXml);
  }
}