preserve xml format 2003-02-21 - By Ramesh Babu
Hi,
I'm reading xml file and parsing thru'
apache Xerces(xerces-1_4_3) DOMParser.
I serialize the xml and I want to save into the file.
my xml,
<?xml version="1.0" encoding="ISO-8859-1"?>
<Root>
<Property key="A" cat="door"/>
</Root>
and my code,
import java.io.*;
import org.w3c.dom.*;
import org.apache.xml.serialize.*;
import org.apache.xerces.parsers.DOMParser;
public class XmlWriter {
private DOMParser domParser;
private String strFileName;
private Document doc;
public XmlWriter(String strFileName) throws
Exception {
try {
this.strFileName = strFileName;
this.domParser = new DOMParser();
domParser.parse(strFileName);
doc = domParser.getDocument();
}
catch(Exception oEx) {
System.out.println("\n XML Parse Error.\n" +
oEx);
throw oEx;
}
}
public String serializeXml() {
StringWriter sw = new StringWriter();
OutputFormat format = new OutputFormat();
format.setIndenting(true);
format.setLineWidth(0);
format.setPreserveSpace(true);
XMLSerializer serializer = new XMLSerializer(sw,
format);
try {
serializer.asDOMSerializer();
serializer.serialize(this.getDocument().getDocumentElement());
} catch (Exception ex) {
System.out.println("[serializeXml()] exception
while serializing" + ex);
}
return sw.toString();
}
public boolean writeXml(String newXml, String
fileToWrite, boolean append) {
try {
BufferedWriter writer = new BufferedWriter( new
FileWriter( fileToWrite, append ) );
writer.write(newXml);
writer.flush();
writer.close();
} catch(Exception ex) {
System.out.println("[writeXml()] Exception while
writing" + ex);
return false;
}
return true;
}
public Document getDocument() {
return(doc);
}
public static void main(String[] args) {
String fileName = args[0];
XmlWriter writer = null;
try {
writer = new XmlWriter(fileName);
String newXml = writer.serializeXml();
writer.writeXml(newXml, fileName + ".test",
false);
} catch (Exception e) {
e.printStackTrace();
}
}
}
After executing, the file it looks like
<Property cat="door" key="A" />
Actually attributes are sorted which I don't want.
How do I preserver the old format of the xml ?
Any API I need to use ? any help ?
Thanks.
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