1. import org.apache.lucene.analysis.Analyzer;   
2. import org.apache.lucene.analysis.TokenStream;   
3. import org.apache.lucene.document.Document;   
4. import org.apache.lucene.document.Field;   
5. import org.apache.lucene.index.IndexWriter;   
6. import org.apache.lucene.queryParser.QueryParser;   
7. import org.apache.lucene.search.Hits;   
8. import org.apache.lucene.search.IndexSearcher;   
9. import org.apache.lucene.search.Query;   
10. import org.apache.lucene.search.highlight.Highlighter;   
11. import org.apache.lucene.search.highlight.QueryScorer;   
12. import org.apache.lucene.search.highlight.SimpleFragmenter;   
13. import org.apache.lucene.search.highlight.SimpleHTMLFormatter;   
14. import org.apache.lucene.store.Directory;   
15. import org.apache.lucene.store.RAMDirectory;   

转自:http://ttitfly.javaeye.com/blog/107408