使用lucene3.6的一个小例子，实现了索引的创建和简单的搜索。
代码如下：
package com.java.search;
import java.io.File;
import java.io.IOException;
import java.util.Date;
import org.apache.lucene.analysis.standard.StandardAnalyzer;
import org.apache.lucene.document.Document;
import org.apache.lucene.document.Field;
import org.apache.lucene.document.Field.Index;
import org.apache.lucene.document.Field.Store;
import org.apache.lucene.index.IndexReader;
import org.apache.lucene.index.IndexWriter;
import org.apache.lucene.index.IndexWriterConfig;
import org.apache.lucene.index.Term;
import org.apache.lucene.search.IndexSearcher;
import org.apache.lucene.search.ScoreDoc;
import org.apache.lucene.search.TermQuery;
import org.apache.lucene.store.FSDirectory;
import org.apache.lucene.util.Version;
public class Searcher {
public void test() throws IOException {
File file = new File("f://youyajie");
FSDirectory directory = FSDirectory.open(file);
//用来创建索引
IndexWriterConfig conf = new IndexWriterConfig(Version.LUCENE_36,
new StandardAnalyzer(Version.LUCENE_36));
IndexWriter writer = new IndexWriter(directory, conf);
Document doc1 = new Document();
Document doc2 = new Document();
Document doc3 = new Document();
Document doc4 = new Document();
Document doc5 = new Document();
Document doc6 = new Document();
Document doc7 = new Document();
Document doc8 = new Document();
Field f1 = new Field("bookname", "钢铁是怎样炼成的", Store.YES, Index.ANALYZED);
Field f2 = new Field("bookname", "英雄儿女", Store.YES, Index.ANALYZED);
Field f3 = new Field("bookname", "篱笆女人和狗", Store.YES, Index.ANALYZED);
Field f4 = new Field("bookname", "格林童话", Store.YES, Index.ANALYZED);
Field f5 = new Field("bookname", "钢和铁是两种金属", Store.YES, Index.ANALYZED);
Field f6 = new Field("bookname", "白毛女", Store.YES, Index.ANALYZED);
Field f7 = new Field("bookname", "钢的世界", Store.YES, Index.ANALYZED);
Field f8 = new Field("bookname", "钢铁战士", Store.YES, Index.ANALYZED);
doc1.add(f1);
doc2.add(f2);
doc3.add(f3);
doc4.add(f4);
doc5.add(f5);
doc6.add(f6);
doc7.add(f7);
doc8.add(f8);
writer.addDocument(doc1);
writer.addDocument(doc2);
writer.addDocument(doc3);
writer.addDocument(doc4);
writer.addDocument(doc5);
writer.addDocument(doc6);
writer.addDocument(doc7);
writer.addDocument(doc8);
writer.close();//一定要关闭writer，这样索引才能写到磁盘上
IndexReader reader = IndexReader.open(directory);
//简单索引
IndexSearcher searcher = new IndexSearcher(reader);
Term t = new Term("bookname", "钢");
TermQuery quenry = new TermQuery(t);
//获得得分靠前的两个匹配记录
ScoreDoc[] docs = searcher.search(quenry, 2).scoreDocs;
for(int i = 0; i < docs.length; i++) {
Date start = new Date();
String bookname = searcher.doc(docs[i].doc).get("bookname");
Date end = new Date();
System.out.println(bookname + (end.getTime() - start.getTime()) + "ms");
}
}
public static void main(String[] args) throws IOException {
Searcher Test = new Searcher();
Test.test();
}
}
索引创建成功。
运行结果为：
钢的世界2ms 钢铁战士1ms
使用lucene3.6的一个小例子，实现了索引的创建和简单的搜索。