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Hi Charlot,
Thanx so much for your email, i've included the exceptions handing codes
into my file. once again, no errors during compilation but at runtime,
here's the error:
Exception in thread "main" java.lang.NoClassDefFoundError:
org/xml/sax/helpers/D
efaultHandler
at java.lang.ClassLoader.defineClass0(Native Method)
at java.lang.ClassLoader.defineClass(Unknown Source)
at java.security.SecureClassLoader.defineClass(Unknown Source)
at java.net.URLClassLoader.defineClass(Unknown Source)
at java.net.URLClassLoader.access$100(Unknown Source)
at java.net.URLClassLoader$1.run(Unknown Source)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(Unknown Source)
at java.lang.ClassLoader.loadClass(Unknown Source)
at sun.misc.Launcher$AppClassLoader.loadClass(Unknown Source)
at java.lang.ClassLoader.loadClass(Unknown Source)
at java.lang.ClassLoader.loadClassInternal(Unknown Source)
sorry to have to trouble you, but could u pls give me some advice? thank you =)
At 07:34 PM 11/28/2001 +0100, you wrote:
>try including this in the main
>
> DefaultHandler handler = new Echo();
> SAXParserFactory factory = SAXParserFactory.newInstance();
> try {
> out = new OutputStreamWriter(System.out,"UTF8");
> SAXParser saxParser = factory.newSAXParser();
> saxParser.parse(new File(argv[0]),handler);
> }
> catch (SAXParseException spe) {
> System.out.println("\n** Parsing error"
> + ", line " + spe.getLineNumber()
> + ", uri " + spe.getSystemId());
> System.out.println(" " + spe.getMessage());
> Exception x = spe;
> if (spe.getException() != null)
> x = spe.getException();
> x.printStackTrace();
> }
> catch (SAXException sxe) {
> Exception x = sxe;
> if (sxe.getException() != null)
> x = sxe.getException();
> x.printStackTrace();
> }
> catch (ParserConfigurationException pce) {
> pce.printStackTrace();
> }
> catch (Throwable t) {
> t.printStackTrace();
> }
> System.exit(0);
>
>----- Original Message -----
>From: "Javier Ho" <hochokchiat@y...>
>To: <xml-dev@l...>
>Sent: Wednesday, November 28, 2001 3:05 AM
>Subject: Problems with setting up Xerces
>
>
> > Hi everyone =)
> >
> > I wrote a simple parser for xml using SAX. there is no
> > problem at compilation time. when i run the program
> > however, the following error is generated:
> >
> > Exception in thread "main"
> > java.lang.NoClassDefFoundError:
> > org/xml/sax/helpers/DefaultHandler
> > at java.lang.ClassLoader.defineClass0(Native
> > Method)
> > at java.lang.ClassLoader.defineClass(Unknown
> > Source)
> > at
> > java.security.SecureClassLoader.defineClass(Unknown
> > Source)
> > at java.net.URLClassLoader.defineClass(Unknown
> > Source)
> > at java.net.URLClassLoader.access$100(Unknown
> > Source)
> > at java.net.URLClassLoader$1.run(Unknown
> > Source)
> > at
> > java.security.AccessController.doPrivileged(Native
> > Method)
> > at java.net.URLClassLoader.findClass(Unknown
> > Source)
> > at java.lang.ClassLoader.loadClass(Unknown
> > Source)
> > at
> > sun.misc.Launcher$AppClassLoader.loadClass(Unknown
> > Source)
> > at java.lang.ClassLoader.loadClass(Unknown
> > Source)
> > at
> > java.lang.ClassLoader.loadClassInternal(Unknown
> > Source)
> >
> >
> > If there's anyone who can provide me with some clues
> > to what this error is, thank you so much beccause i've
> > been working on it for a week and have followed the
> > installation in setting classpath. have even tried to
> > install it as an extension to java. none of it work.
> >
> > here is my java source code. Please enlighten me on
> > any semantic errors that might have caused the runtime
> > error.
> >
> > Thank you so much folks!!
> >
> >
> > import java.io.*;
> > import org.xml.sax.*;
> > import org.xml.sax.helpers.DefaultHandler;
> > import javax.xml.parsers.SAXParserFactory;
> > import javax.xml.parsers.ParserConfigurationException;
> > import javax.xml.parsers.SAXParser;
> >
> > public class Echo extends DefaultHandler
> > { private static Writer out;
> >
> > public static void main(String[] args)
> > {
> > if(args.length != 1) {
> > System.out.println("Usage: cmd filename");
> > System.exit(1);
> > }
> >
> > //use an instance of ourselves as an SAX event
> > handler
> > DefaultHandler handler = new Echo();
> >
> > //use the default(non-validating) parser
> > SAXParserFactory factory =
> > SAXParserFactory.newInstance();
> >
> > try {
> > //set up output stream
> > out = new OutputStreamWriter(System.out, "UTF8");
> >
> > //parse the input
> > SAXParser saxParser = factory.newSAXParser();
> > saxParser.parse(new File(args[0]), handler);
> >
> > } catch(Throwable t) {
> > t.printStackTrace();
> > }
> >
> > System.exit(0);
> > }
> >
> > private void emit(String s) throws SAXException
> > {
> > try {
> > out.write(s);
> > out.flush();
> > } catch(IOException e) {
> > throw new SAXException("IO Error", e);
> > }
> > }
> >
> > private void nl() throws SAXException
> > {
> > String lineEnd =
> > System.getProperty("line.seperator");
> >
> > try {
> > out.write(lineEnd);
> > } catch(IOException e) {
> > throw new SAXException("IO Error", e);
> > }
> > }
> >
> > public void startDocument() throws SAXException
> > {
> > emit("<?xml version='1.0' encoding='UTF-8'?>");
> > nl();
> > }
> >
> > public void endDocument() throws SAXException
> > {
> > try {
> > nl();
> > out.flush();
> > } catch(IOException e) {
> > throw new SAXException("IO Error", e);
> > }
> > }
> >
> > public void startElement(String namespaceURI, String
> > sName, String qName,
> > Attributes attrs)
> > throws SAXException
> > {
> > String eName = sName;
> > if("".equals(eName)) //qualified name
> > eName = qName;
> >
> > emit("<" + eName);
> > if(attrs != null) {
> > for(int i = 0; i < attrs.getLength(); i++) {
> > String aName = attrs.getLocalName(i); //attribute
> > name
> > if("".equals(aName))
> > aName = attrs.getQName(i);
> > emit(" ");
> > emit(aName + "=\"" + attrs.getValue(i) + "\"");
> > }
> > }
> > emit(">");
> > }
> >
> > public void endElement(String namespaceURI, String
> > sName, String qName)
> > throws SAXException
> > {
> > emit("<" + sName + ">");
> > }
> >
> > public void characters(char buf[], int offset, int
> > len) throws SAXException
> > {
> > String s = new String(buf, offset, len);
> > emit(s);
> > }
> > }
> >
> > rgds,
> > Javier
> >
> > __________________________________________________
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