Re: Easiest way to read a XML doc from file, reformat it and write it indented to a second file?

From:

=?ISO-8859-1?Q?Arne_Vajh=F8j?= <arne@vajhoej.dk>

Newsgroups:

comp.lang.java.help

Date:

Thu, 15 Jul 2010 19:36:00 -0400

Message-ID:

<4c3f9b56$0$282$14726298@news.sunsite.dk>

On 15-07-2010 10:52, Raymond Schanks wrote:

Assume I have a XML docuemnt in file mydoc123.xml
The XML doc is textually formatted as one long line/string without line breaks.

Now I want to read this XML doc file into Java, then reformat it so
that the hierarchy levels are indented in a human radble format "as usual".

Finally the result should be written to another text file result.xml

How can I do this most easily (preferable without third party libraries but
only J2SE built-in functions)?

Newer versions of W3C DOM supports writing of XML files.

So try something like:

DocumentBuilderFactory dbf = DocumentBuilderFactory.newInstance();
DocumentBuilder db = dbf.newDocumentBuilder();
Document doc = db.parse(oldfnm);
DOMImplementation impl =
DOMImplementationRegistry.newInstance().getDOMImplementation("XML 3.0");
DOMImplementationLS feature =
(DOMImplementationLS)impl.getFeature("LS","3.0");
LSSerializer ser = feature.createLSSerializer();
LSOutput output = feature.createLSOutput();
output.setByteStream(new FileOutputStream(newfnm));
ser.write(doc, output);

Arne