StaX: Content not allowed in prolog
- by RalfB
I have the following (test) XML file below and Java code that uses StaX. I want to apply this code to a file that is about 30 GB large but with fairly small elements, so I thought StaX is a good choice. I am getting the following error:
Exception in thread "main" javax.xml.stream.XMLStreamException: ParseError at [row,col]:[1,1] Message: Content is not allowed in prolog
at com.sun.org.apache.xerces.internal.impl.XMLStreamReaderImpl.next(XMLStreamReaderImpl.java:598)
at at.tuwien.mucke.util.xml.staxtest.StaXTest.main(StaXTest.java:18)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:601)
at com.intellij.rt.execution.application.AppMain.main(AppMain.java:120)
<?xml version='1.0' encoding='utf-8'?>
<catalog>
<book id="bk101">
<author>Gambardella, Matthew</author>
<title>XML Developer's Guide</title>
<price>44.95</price>
<description>An in-depth look at creating applications
with XML.</description>
</book>
<book id="bk102">
<author>Ralls, Kim</author>
<title>Midnight Rain</title>
<price>5.95</price>
<description>A former architect battles corporate zombies,
an evil sorceress, and her own childhood to become queen
of the world.</description>
</book>
</catalog>
Here the code:
package xml.staxtest;
import java.io.*;
import javax.xml.stream.*;
public class StaXTest {
public static void main(String[] args) throws Exception {
XMLInputFactory xif = XMLInputFactory.newInstance();
XMLStreamReader streamReader = xif.createXMLStreamReader(new FileReader("D:/Data/testFile.xml"));
while(streamReader.hasNext()){
int eventType = streamReader.next();
if(eventType == XMLStreamReader.START_ELEMENT){
System.out.println(streamReader.getLocalName());
}
//... more to come here later ...
}
}
}
