How do I make JTIdy make HTML documents well-forme

问题:

I'm using JTidy v. r938. I'm using this code to attempt to clean up a page …

final Tidy tidy = new Tidy();
tidy.setQuiet(false);
tidy.setShowWarnings(true);
tidy.setShowErrors(0);
tidy.setMakeClean(true);
Document document = tidy.parseDOM(conn.getInputStream(), null);

But when I parse this URL -- http://www.chicagoreader.com/chicago/EventSearch?narrowByDate=This+Week&eventCategory=93922&keywords=&page=1, things aren't getting cleaned up. For example, the META tags on the page, like

<META http-equiv="Content-Type" content="text/html; charset=UTF-8">

remain as

<META http-equiv="Content-Type" content="text/html; charset=UTF-8">

instead of having a "</META>" tag or appearing as "<META http-equiv="Content-Type" content="text/html; charset=UTF-8"/>". I confirm this by outputting the resulting JTidy org.w3c.dom.Document as a String.

What can I do to make JTidy truly clean up the page -- i.e. make it well-formed? I realize there are other tools out there, but this question specifically relates to using JTIdy.

回答1:

You need specify several flags to Tidy if you want XML format

private String cleanData(String data) throws UnsupportedEncodingException {
    Tidy tidy = new Tidy();
    tidy.setInputEncoding("UTF-8");
    tidy.setOutputEncoding("UTF-8");
    tidy.setWraplen(Integer.MAX_VALUE);
    tidy.setPrintBodyOnly(true);
    tidy.setXmlOut(true);
    tidy.setSmartIndent(true);
    ByteArrayInputStream inputStream = new ByteArrayInputStream(data.getBytes("UTF-8"));
    ByteArrayOutputStream outputStream = new ByteArrayOutputStream();
    tidy.parseDOM(inputStream, outputStream);
    return outputStream.toString("UTF-8");
}

Or simply if want XHTML form

Tidy tidy = new Tidy();
tidy.setXHTML(true);

回答2:

use tidy.setXmlTags(true); to parse XML instead of HTML

回答3:

Use Tidy.setForceOutput(true) (at your own risk) to generate the output even if errors are found.

回答4:

I parse the HTML 2 times to get well formed xml

  BufferedReader br = new BufferedReader(new StringReader(str));
  StringWriter sw = new StringWriter();

  Tidy t = new Tidy();
  t.setDropEmptyParas(true);
  t.setShowWarnings(false); //to hide errors
  t.setQuiet(true); //to hide warning
  t.setUpperCaseAttrs(false);
  t.setUpperCaseTags(false);
  t.parse(br,sw);
  StringBuffer sb = sw.getBuffer();
  String strClean = sb.toString();
  br.close();
  sw.close();

  //do another round of tidyness
  br = new BufferedReader(new StringReader(strClean));
  sw = new StringWriter();

  t = new Tidy();
  t.setXmlTags(true);
  t.parse(br,sw);
  sb = sw.getBuffer();
  String strClean2 = sb.toString();
  br.close();
  sw.close();