 |
 |
Thanks Erik and Bess. Erik: Lamentably, your java -cp lucene-core-2.0.0.jar:lucene-demos-2.0.0.jar org.apache.lucene.demo.IndexFiles src/ threw the same error. I'm going to take a look at the LuceneInAction codebase and see if I can get it working that way. Thanks for taking the time to install 2.0.0. I don't know how I ended up with 2.0.1 jars--they appeared when I ran ant . . . . Bess: Thanks for the advice. I'm going to give things a whirl this way, too. Yours, Andrew On 1/11/07, Bess Sadler <[log in to unmask]> wrote: > Hi, Andrew and all the other code4libbers, > > I wanted to add that if your goal is to prepare for the pre- > conference, it probably isn't necessary to get down and dirty with > the lucene libraries. Of course I would never discourage anyone from > playing around with them, but at the same time please don't feel you > need to do that in order to participate in the pre-conference. > > Before solr, if you wanted to use lucene you had to call the low- > level lucene libraries directly and write your own lucene > implementation. Solr provides a very convenient wrapper for it all, > though, and it's much easier to use. Instead of accessing the lucene > libraries directly, you just fire up solr, massage your data into an > XML file that matches solr's expected input format, and POST your XML > file to a solr URL. They even provide you with a script to do the > POSTing. You can learn all this from the solr demo and tutorial, > available here: http://incubator.apache.org/solr/tutorial.html > > So, if you're not all that good with java, and you just want to be > able to create and search a lucene index without spending the next > month learning a new programming language, I strongly recommend > skipping the lucene bit and jumping right into solr. > > Just my $0.02, > Bess > > On Jan 11, 2007, at 11:26 AM, Erik Hatcher wrote: > > > Andrew, > > > > > > > > > > On Jan 11, 2007, at 10:47 AM, Andrew Darby wrote: > >> Hello, all. I'm trying to get started with Lucene for the Code4Lib > >> preconference > > > > Excellent!!! > > > >> and was wondering if someone could help. > > > > Of course.... > > > >> I'm trying to > >> do the first example from the Lucene site > >> (http://lucene.apache.org/java/docs/demo.html) on my Windows XP > >> machine but when I try to build the test index from the command line > >> like so: > >> > >> C:\lucene-2.0.0>java org.apache.lucene.demo.IndexFiles C: > >> \lucene-2.0.0/src > >> > >> I get the following error: > >> > >> Exception in thread "main" java.lang.NoClassDefFoundError: > >> org/apache/lucene/demo/IndexFiles > >> > >> My CLASSPATH looks like this: > >> > >> .;C:\Program Files\QuickTime\QTSystem\QTJava.zip;C:\lucene-2.0.0 > >> \build\lucene-core-2.0.1-dev.jar;C:\lucene-2.0.0\build\lucene- > >> demos-2.0.1-dev.jar; > > > > 2.0.1? Where'd you get that version? > > > > I pulled down the latest stable release, 2.0.0, just now to run > > through this myself. > > > > Rather than setting CLASSPATH (an evil thing in the Java world, it > > can really bite you at inopportune times), I ran it this way > > successfully: > > > > java -cp lucene-core-2.0.0.jar:lucene-demos-2.0.0.jar > > org.apache.lucene.demo.IndexFiles src/ > > > >> I assume this is a basic error, and something to do with the > >> classpath, but as best I can tell everything is correct, the > >> IndexFiles.class file is where it should be, etc. I'm not familiar > >> with Java, if you haven't guessed. Any suggestions? > > > > Sadly the demo that ships with Lucene is pretty weak. For more > > examples, grab the Lucene in Action (LIA) codebase from http:// > > www.lucenebook.com and fire it up simply by typing "ant" and > > following the instructions in the README too. That code is for > > Lucene 1.4.3 - 1.9.x. Lucene 2.0 removed deprecated methods, and > > there are a few tidbits of trivia to adjust LIA code to Lucene 2.0 > > available here: > > > > <http://www.nabble.com/Lucene-in-Action-examples-complie- > > problem- > > tf2418478.html#a6743189> > > > > The demo that ships with Lucene is barely usable for anything other > > than "yeah, it can search text, but boy is it a hassle to run". Keep > > in mind that Lucene is a low-level library, so for there to be much > > of use out of it, you have to build something around it. The Indexer > > and Searcher command-line apps in the LIA code base provide a better > > working demo "out of the box", but still quite crude. > > > > Erik > > Elizabeth (Bess) Sadler > Head, Technical and Metadata Services > Digital Scholarship Services > Box 400129 > Alderman Library > University of Virginia > Charlottesville, VA 22904 > > [log in to unmask] > (434) 243-2305 > -- Andrew Darby Web Services Librarian Ithaca College Library http://www.ithaca.edu/library/ [log in to unmask]