Lucene 的 highlight 显示

import net.paoding.analysis.analyzer.PaodingAnalyzer;   
import org.apache.lucene.analysis.Analyzer;   
import org.apache.lucene.document.Document;   
import org.apache.lucene.queryParser.MultiFieldQueryParser;   
import org.apache.lucene.search.BooleanClause;   
import org.apache.lucene.search.IndexSearcher;   
import org.apache.lucene.search.Query;   
import org.apache.lucene.search.ScoreDoc;   
import org.apache.lucene.search.TopDocCollector;   
import org.apache.lucene.search.highlight.Highlighter;   
import org.apache.lucene.search.highlight.QueryScorer;   
import org.apache.lucene.search.highlight.SimpleFragmenter;   
import org.apache.lucene.search.highlight.SimpleHTMLFormatter;
这些包那里找.怎么放入到eclipse里呢?
我是菜人,请高手指教.......