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PORE: Big XML file
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  1. PORE: Big XML file
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    copied!<p>Followup question to <a href="https://stackoverflow.com/questions/504689/big-xml-file/504795">Big XML File</a>:</p> <p>First thanks a lot for yours answers. After… what I do wrong? This is my class which uses SAX: </p> <pre><code>public class SAXParserXML extends DefaultHandler { public static void ParcourXML() { DefaultHandler handler = new SAXParserXML(); SAXParserFactory factory = SAXParserFactory.newInstance(); try { String URI = "dblp.xml"; SAXParser saxParser = factory.newSAXParser(); saxParser.parse(URI,handler); } catch (Throwable t) { t.printStackTrace (); } } public void startElement (String namespaceURI,String simpleName,String qualifiedName,Attributes attrs) throws SAXException { } public void endElement (String namespaceURI,String simpleName,String qualifiedName) throws SAXException { } } </code></pre> <p>You can see that I do nothing with my XML file but it gives this error:</p> <pre><code>java.lang.OutOfMemoryError: Java heap space at com.sun.org.apache.xerces.internal.util.XMLStringBuffer.append(Unknown Source) at com.sun.org.apache.xerces.internal.impl.XMLDocumentScannerImpl.refresh(Unknown Source) at com.sun.org.apache.xerces.internal.impl.XMLEntityScanner.invokeListeners(Unknown Source) at com.sun.org.apache.xerces.internal.impl.XMLEntityScanner.peekChar(Unknown Source) at com.sun.org.apache.xerces.internal.impl.XMLDocumentFragmentScannerImpl$FragmentContentDriver.next(Unknown Source) at com.sun.org.apache.xerces.internal.impl.XMLDocumentScannerImpl.next(Unknown Source) at com.sun.org.apache.xerces.internal.impl.XMLDocumentFragmentScannerImpl.scanDocument(Unknown Source) at com.sun.org.apache.xerces.internal.parsers.XML11Configuration.parse(Unknown Source) at com.sun.org.apache.xerces.internal.parsers.XML11Configuration.parse(Unknown Source) at com.sun.org.apache.xerces.internal.parsers.XMLParser.parse(Unknown Source) at com.sun.org.apache.xerces.internal.parsers.AbstractSAXParser.parse(Unknown Source) at com.sun.org.apache.xerces.internal.jaxp.SAXParserImpl$JAXPSAXParser.parse(Unknown Source) at javax.xml.parsers.SAXParser.parse(Unknown Source) at javax.xml.parsers.SAXParser.parse(Unknown Source) at SAXParserXML.ParcourXML(SAXParserXML.java:30) at Main.main(Main.java:28) </code></pre> <p>I tried also Stax…the same error… what can I do? Also I increased the Java heap size up to 1260M</p> <pre><code>java -Xmx1260M SAXParserXML </code></pre> <p>the XML file has this form:</p> <pre><code>&lt;dblp&gt; &lt;incollection&gt; &lt;author&gt;... &lt;/author&gt; .... &lt;author&gt;... &lt;/author&gt; #other tags-i'm interested only by &lt;author&gt;# ... &lt;/incollection&gt; &lt;incollection&gt; # the same thing# &lt;/incollection&gt; .... &lt;/dblp&gt; </code></pre> <p>You can find the original file: <a href="http://dblp.uni-trier.de/xml/" rel="nofollow noreferrer">http://dblp.uni-trier.de/xml/</a> </p> <p>Thanks</p>
 

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