choco.lucene.IKAnalyzerDemo.java Source code

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Here is the source code for choco.lucene.IKAnalyzerDemo.java

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package choco.lucene;

/** * IK ?  5.0 
 * * IK Analyzer release 5.0 
 * * 
 * * Licensed to the Apache Software Foundation (ASF) under one or more 
 * * contributor license agreements. See the NOTICE file distributed with 
 * * this work for additional information regarding copyright ownership. 
 * * The ASF licenses this file to You under the Apache License, Version 2.0 
 * * (the "License"); you may not use this file except in compliance with 
 * * the License. You may obtain a copy of the License at 
 * * * http://www.apache.org/licenses/LICENSE-2.0 
 * * * Unless required by applicable law or agreed to in writing, software 
 * * distributed under the License is distributed on an "AS IS" BASIS, 
 * * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 
 * * See the License for the specific language governing permissions and 
 * * limitations under the License. 
 * * ??(linliangyi2005@gmail.com)?? 
 * * ? 2012 
 * * provided by Linliangyi and copyright 2012 by Oolong studio 
 **/

import java.io.IOException;
import org.apache.lucene.analysis.Analyzer;
import org.apache.lucene.document.Document;
import org.apache.lucene.document.Field;
import org.apache.lucene.index.CorruptIndexException;
import org.apache.lucene.index.IndexReader;
import org.apache.lucene.index.IndexWriter;
import org.apache.lucene.index.IndexWriterConfig;
import org.apache.lucene.index.IndexWriterConfig.OpenMode;
import org.apache.lucene.queryParser.ParseException;
import org.apache.lucene.queryParser.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.LockObtainFailedException;
import org.apache.lucene.store.RAMDirectory;
import org.apache.lucene.util.Version;
import org.wltea.analyzer.lucene.IKAnalyzer;

/**
* IKAnalyzer  
* 2012-3-2 
* ?Lucene3.4 API 
**/
public class IKAnalyzerDemo {
    public static void main(String[] args) {
        //Lucene Document?? 
        String fieldName = "text";
        // 
        String text = "IK Analyzer???????";
        //IKAnalyzer? 
        Analyzer analyzer = new IKAnalyzer();
        Directory directory = null;
        IndexWriter iwriter = null;
        IndexReader ireader = null;
        IndexSearcher isearcher = null;
        try {
            // 
            directory = new RAMDirectory();
            //?IndexWriterConfig 
            IndexWriterConfig iwConfig = new IndexWriterConfig(Version.LUCENE_34, analyzer);
            iwConfig.setOpenMode(OpenMode.CREATE_OR_APPEND);
            iwriter = new IndexWriter(directory, iwConfig);
            //          
            Document doc = new Document();
            doc.add(new Field("ID", "10000", Field.Store.YES, Field.Index.NOT_ANALYZED));
            doc.add(new Field(fieldName, text, Field.Store.YES, Field.Index.ANALYZED));
            iwriter.addDocument(doc);
            iwriter.close();
            //?********************************** 
            //? 
            ireader = IndexReader.open(directory);
            isearcher = new IndexSearcher(ireader);
            String keyword = "?";
            //QueryParser?Query 
            QueryParser qp = new QueryParser(Version.LUCENE_34, fieldName, analyzer);
            qp.setDefaultOperator(QueryParser.AND_OPERATOR);
            Query query = qp.parse(keyword);
            //?5? 
            TopDocs topDocs = isearcher.search(query, 5);
            System.out.println("" + topDocs.totalHits);
            // 
            ScoreDoc[] scoreDocs = topDocs.scoreDocs;
            for (int i = 0; i < topDocs.totalHits; i++) {
                Document targetDoc = isearcher.doc(scoreDocs[i].doc);
                System.out.println("" + targetDoc.toString());
            }
        } catch (CorruptIndexException e) {
            e.printStackTrace();
        } catch (LockObtainFailedException e) {
            e.printStackTrace();
        } catch (IOException e) {
            e.printStackTrace();
        } catch (ParseException e) {
            e.printStackTrace();
        } finally {
            if (ireader != null) {
                try {
                    ireader.close();
                } catch (IOException e) {
                    e.printStackTrace();
                }
            }
            if (directory != null) {
                try {
                    directory.close();
                } catch (IOException e) {
                    e.printStackTrace();
                }
            }
        }
    }
}