hi,
I had tried some java codes calling lucene lib lucene-1.9-rc1-dev.jar, but
got error, my java code is like below:
import org.apache.lucene.index.IndexReader;
import org.apache.lucene.store.*;
import java.io.*;
import java.util.*;
public class hello
{
public static void main(String[] args)throws Exception
{
System.out.println("Hello world!");
File indexDir = new File("./publication/index");
Boolean bb = true;
Directory fsDir = FSDirectory.getDirectory(indexDir,false);
}
}
below is the statement noted in ubuntu OS's Terminal : -
luceneJava$ export CLASSPATH=/opt/nutch-0.7 .1/luceneJava/lucene-
1.9-rc1-dev.jar
luceneJava$ export JAVA_HOME=/opt/jdk1.5.0_ 06
luceneJava$ /opt/jdk1.5.0_06/bin/javac hello.java
luceneJava$ java -classpath . hello
Hello world!
Exception in thread "main" java.lang.NoClassDefFoundError:
org/apache/lucene/st ore/FSDirectory
at hello.main(hello.java:14)
I'm using ubuntu as my OS, actually this code run ok in window XP, but not
for ubuntu. can anyone check the error for me? thanks for your attention.
regards,
Wong
On 2/23/06, Stefan Groschupf <[EMAIL PROTECTED]> wrote:
>
> Hi Wong,
> take a look to:
> http://lucene.apache.org/java/docs/api/org/apache/lucene/index/
> IndexReader.html
> There are many code snippets in the net that will show you how you
> can use it.
> In general I found the book lucene in action a useful guide when
> working with lucene.
>
> Stefan
>
> Am 23.02.2006 um 02:37 schrieb Wong Ting Kiong:
>
> > hi,
> > Is there any example of java code that i can read the data from
> > index file
> > in segments? I had tried segmentReader, ArrayfileReader, and
> > SequenceReader.... feel confuse. Thanks.
> >
> > Wong
> >
> > On 1/24/06, Stefan Groschupf <[EMAIL PROTECTED]> wrote:
> >>
> >> you can calculate these statistics from the segment data, e.g. parsed
> >> text.
> >> To read the nutch file format is easy possible using the Nutch
> >> Readers e.g. SequenceFile Reader.
> >> Just take a look to the io package.
> >>
> >> HTH
> >> Stefan
> >>
> >>
> >> Am 24.01.2006 um 08:18 schrieb Wong Ting Kiong:
> >>
> >>> hi all,
> >>>
> >>> I'm now using nutch 0.7.1, and I wish to retrieve content from
> >>> index file,
> >>> how can i retrieve? Information that i want to retrieve are
> >>> - list of words from each links
> >>> - occurance of words in each links
> >>> can i retrieve these information in raw data format?
> >>>
> >>> thanks for your attention
> >>>
> >>> Kiong
> >>
> >>
>
> ---------------------------------------------------------------
> company: http://www.media-style.com
> forum: http://www.text-mining.org
> blog: http://www.find23.net
>
>
>
>
