ackage com.zxf.demo;import java.io.BufferedReader;import java.io.File;import java.io.FileInputStream;import java.io.InputStreamReader;import org.apache.lucene.analysis.Analyzer;import org.apache.lucene.analysis.standard.StandardAnalyzer;import org.apache.lucene.document.Document;import org.apache.lucene.document.Field;import org.apache.lucene.document.StringField;import org.apache.lucene.document.TextField;import org.apache.lucene.index.DirectoryReader;import org.apache.lucene.index.IndexReader;import org.apache.lucene.index.IndexWriter;import org.apache.lucene.index.IndexWriterConfig;import org.apache.lucene.queryparser.classic.QueryParser;import org.apache.lucene.search.IndexSearcher;import org.apache.lucene.search.Query;import org.apache.lucene.search.ScoreDoc;import org.apache.lucene.search.TopDocs;import org.apache.lucene.store.Directory;import org.apache.lucene.store.FSDirectory;import org.apache.lucene.util.Version;public class LuceneForuDemo {static final String INDEXPATH = System.getProperty("user.dir") + "\\index";static final String DATAPATH = System.getProperty("user.dir") + "\\data";public static void main(String[] args) {try{LuceneForuDemo.indexDirectory();LuceneForuDemo.search();}catch (Exception e) {e.printStackTrace();}}/*** 建立索引* @throws Exception*/public static void indexDirectory() throws Exception{File indexDir = new File(LuceneForuDemo.INDEXPATH);File dataDir = new File(LuceneForuDemo.DATAPATH);Analyzer analyzer = new StandardAnalyzer(Version.LUCENE_44);IndexWriterConfig iwc = new IndexWriterConfig(Version.LUCENE_44, analyzer);Directory dir = FSDirectory.open(indexDir);IndexWriter indexWriter = new IndexWriter(dir, iwc);File[] dataFiles = dataDir.listFiles();for (File file : dataFiles) {FileInputStream inStream = new FileInputStream(file);Document doc = new Document();Field fullFileName = new StringField("fullFileName", file.getCanonicalPath(),Field.Store.YES);doc.add(fullFileName);doc.add(new TextField("contents", new BufferedReader(new InputStreamReader(inStream, "UTF-8"))));indexWriter.addDocument(doc);}indexWriter.close();}/*搜索*/public static void search() throws Exception{String field = "contents";String queryStr = "test"; //搜索的字符串File indexDir = new File(LuceneForuDemo.INDEXPATH);IndexReader reader = DirectoryReader.open(FSDirectory.open(indexDir));IndexSearcher searcher = new IndexSearcher(reader);Analyzer analyzer = new StandardAnalyzer(Version.LUCENE_44);QueryParser parser = new QueryParser(Version.LUCENE_44, field, analyzer);Query query = parser.parse(queryStr);System.out.println("Searching for: " + query.toString(field));TopDocs results = searcher.search(query, 50);ScoreDoc[] hits = results.scoreDocs;int numTotalHits = results.totalHits;System.out.println(numTotalHits + " total matching in documents");for(ScoreDoc sd:hits){Document doc = searcher.doc(sd.doc);System.out.println(doc.get("fullFileName"));}}}