整合Lucene 4.10.1 与IK Analyzer



目录[-]

  • 建立java项目
  • 一个示例:
  • 第二个示例:
  • 参考:
  • 更多资料:
  • 注意,IK Analyzer需要使用其下载列表中的  IK Analyzer 2012FF_hf1.zip,否则在和Lucene 4.10配合使用时会报错。 

    我使用 intellij IDEA 12进行的测试。 


    建立java项目

    建立项目HelloLucene,导入Lucene的几个库。“File”->“Project Structure”->
    整合Lucene 4.10.1 与IK Analyzer_第1张图片


    IK Analyzer 2012FF_hf1.zip解压后的源码放入src目录,并将字典和配置文件放入src目录,最终如下:

    整合Lucene 4.10.1 与IK Analyzer_第2张图片

    一个示例:

    IKAnalyzerDemo.java中是我在其他地方找的一个示例,和IK的官方示例很像。内容如下:

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    package org.apache.lucene.demo;
    import java.io.IOException;
    import java.io.StringReader;
     
    import org.apache.lucene.analysis.Analyzer;
    import org.apache.lucene.analysis.TokenStream;
    import org.apache.lucene.analysis.tokenattributes.CharTermAttribute;
    import org.apache.lucene.document.Document;
    import org.apache.lucene.document.Field;
    import org.apache.lucene.index.IndexReader;
    import org.apache.lucene.index.IndexWriter;
    import org.apache.lucene.index.IndexWriterConfig;
    import org.apache.lucene.queryparser.classic.ParseException;
    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.RAMDirectory;
    import org.apache.lucene.util.Version;
    import org.wltea.analyzer.lucene.IKAnalyzer;
     
    public class IKAnalyzerDemo {
     
         /**
          * @param args
          * @throws IOException
          */
         public static void main(String[] args) throws IOException {
             // TODO Auto-generated method stub
             //建立索引
             String text1 = "IK Analyzer是一个结合词典分词和文法分词的中文分词开源工具包。它使用了全新的正向迭代最细粒度切" +
                     "分算法。" ;
             String text2 = "中文分词工具包可以和lucene是一起使用的" ;
             String text3 = "中文分词,你妹" ;
             String fieldName = "contents" ;
             Analyzer analyzer = new IKAnalyzer();
             RAMDirectory directory = new RAMDirectory();
             IndexWriterConfig writerConfig = new IndexWriterConfig(Version.LUCENE_34, analyzer);
             IndexWriter indexWriter = new IndexWriter(directory, writerConfig);
             Document document1 = new Document();
             document1.add( new Field( "ID" , "1" , Field.Store.YES, Field.Index.NOT_ANALYZED));
             document1.add( new Field(fieldName, text1, Field.Store.YES, Field.Index.ANALYZED));
             indexWriter.addDocument(document1);
     
             Document document2 = new Document();
             document2.add( new Field( "ID" , "2" , Field.Store.YES, Field.Index.NOT_ANALYZED));
             document2.add( new Field(fieldName, text2, Field.Store.YES, Field.Index.ANALYZED));
             indexWriter.addDocument(document2);
     
             Document document3 = new Document();
             document3.add( new Field( "ID" , "2" , Field.Store.YES, Field.Index.NOT_ANALYZED));
             document3.add( new Field(fieldName, text3, Field.Store.YES, Field.Index.ANALYZED));
             indexWriter.addDocument(document3);
             indexWriter.close();
     
     
             //搜索
             IndexReader indexReader = IndexReader.open(directory);
             IndexSearcher searcher = new IndexSearcher(indexReader);
             String request = "中文分词工具包" ;
             QueryParser parser = new QueryParser(Version.LUCENE_40, fieldName, analyzer);
             parser.setDefaultOperator(QueryParser.AND_OPERATOR);
             try {
                 Query query = parser.parse(request);
                 TopDocs topDocs = searcher.search(query, 5 );
                 System.out.println( "命中数:" +topDocs.totalHits);
                 ScoreDoc[] docs = topDocs.scoreDocs;
                 for (ScoreDoc doc : docs){
                     Document d = searcher.doc(doc.doc);
                     System.out.println( "内容:" +d.get(fieldName));
                 }
             } catch (ParseException e) {
                 // TODO Auto-generated catch block
                 e.printStackTrace();
             } finally {
                 if (indexReader != null ){
                     try {
                         indexReader.close();
                     } catch (IOException e) {
                         e.printStackTrace();
                     }
                 }
     
                 if (directory != null ){
                     try {
                         directory.close();
                     } catch (Exception e) {
                         e.printStackTrace();
                     }
                 }
             }
     
         }
     
    }


    这段代码是将索引文件放入内存中(RAMDirectory),运行结果如下: 
    ?
    1
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    3
    4
    加载扩展停止词典:stopword.dic
    命中数:2
    内容:中文分词工具包可以和lucene是一起使用的
    内容:IK Analyzer是一个结合词典分词和文法分词的中文分词开源工具包。它使用了全新的正向迭代最细粒度切分算法。



    这段代码有两个问题: 
    1、Field()已经不推荐按使用。 
    2、QueryParser()的使用方式也改变了。 

    下面是更加符合要求的示例。 

    第二个示例:

    MyIndex类用来创建索引: 
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    import org.apache.lucene.analysis.Analyzer;
    import org.apache.lucene.document.*;
    import org.apache.lucene.document.Field.Store;
    import org.apache.lucene.index.IndexWriter;
    import org.apache.lucene.index.IndexWriterConfig;
    import org.apache.lucene.store.Directory;
    import org.apache.lucene.store.FSDirectory;
    import org.apache.lucene.util.Version;
    import org.wltea.analyzer.lucene.IKAnalyzer;
     
    import java.io.File;
     
     
    public class MyIndex {
         public static void main(String[] args) {
             String ID;
             String content;
     
             ID = "1231" ;
             content = "BuzzFeed has compiled an amazing array of " +
                     "ridiculously strange bridesmaid snapshots, courtesy of Awkward Family Photos. " ;
             indexPost(ID, content);
     
             ID = "1234" ;
             content = "Lucene是apache软件基金会4 jakarta项目组的一个子项目,是一个开放源代码的全文检索引擎工具包" ;
             indexPost(ID, content);
     
             ID = "1235" ;
             content = "Lucene不是一个完整的全文索引应用,而是是一个用Java写的全文索引引擎工具包,它可以方便的嵌入到各种应用中实现" ;
             indexPost(ID, content);
     
         }
     
         public static void indexPost(String ID, String content) {
             File indexDir = new File( "/home/letian/lucene-test/index" );
     
             Analyzer analyzer = new IKAnalyzer();
     
             TextField postIdField = new TextField( "id" , ID, Store.YES);  // 不要用StringField
             TextField postContentField = new TextField( "content" , content, Store.YES);
     
             Document doc = new Document();
             doc.add(postIdField);
             doc.add(postContentField);
             IndexWriterConfig iwConfig = new IndexWriterConfig(Version.LUCENE_4_10_1, analyzer);
             iwConfig.setOpenMode(IndexWriterConfig.OpenMode.CREATE_OR_APPEND);
             try {
                 Directory fsDirectory = FSDirectory.open(indexDir);
                 IndexWriter indexWriter = new IndexWriter(fsDirectory, iwConfig);
                 indexWriter.addDocument(doc);
                 indexWriter.close();
             } catch (Exception e) {
                 e.printStackTrace();
             }
         }
    }



    索引以文件的形式存储在/home/letian/lucene-test/index目录中,Field被替换成了TextField,注意对于全文索引,不要使用StringField。 
    运行上面的代码,创建索引的结果如下: 
    整合Lucene 4.10.1 与IK Analyzer_第3张图片 



    MySearch.java是一个搜索的示例: 
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    import org.apache.lucene.analysis.Analyzer;
    import org.apache.lucene.document.Document;
    import org.apache.lucene.queryparser.classic.QueryParser;
    import org.apache.lucene.search.*;
    import org.apache.lucene.store.Directory;
    import org.apache.lucene.store.FSDirectory;
    import org.apache.lucene.index.DirectoryReader;
    import org.wltea.analyzer.lucene.IKAnalyzer;
     
    import java.io.File;
     
    public class MySearch {
         public static void main(String[] args) {
             Analyzer analyzer = new IKAnalyzer();
             File indexDir = new File( "/home/letian/lucene-test/index" );
             try {
                 Directory fsDirectory = FSDirectory.open(indexDir);
                 DirectoryReader ireader = DirectoryReader.open(fsDirectory);
                 IndexSearcher isearcher = new IndexSearcher(ireader);
     
     
                 QueryParser qp = new QueryParser( "content" , analyzer);         //使用QueryParser查询分析器构造Query对象
                 qp.setDefaultOperator(QueryParser.AND_OPERATOR);
                 Query query = qp.parse( "Lucene" );     // 搜索Lucene
                 TopDocs topDocs = isearcher.search(query , 5 );      //搜索相似度最高的5条记录
                 System.out.println( "命中:" + topDocs.totalHits);
                 ScoreDoc[] scoreDocs = topDocs.scoreDocs;
                 for ( int i = 0 ; i < topDocs.totalHits; i++){
                     Document targetDoc = isearcher.doc(scoreDocs[i].doc);
                     System.out.println( "内容:" + targetDoc.toString());
                 }
     
             } catch (Exception e) {
     
             }
         }
    }


    得到的结果如下: 
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    命中:2
    内容:Document<stored,indexed,tokenized< id :1234> stored,indexed,tokenized<content:Lucene是apache软件基金会4 jakarta项目组的一个子项目,是一个开放源代码的全文检索引擎工具包>>
    内容:Document<stored,indexed,tokenized< id :1235> stored,indexed,tokenized<content:Lucene不是一个完整的全文索引应用,而是是一个用Java写的全文索引引擎工具包,它可以方便的嵌入到各种应用中实现>>

    目录[-]

  • 建立java项目
  • 一个示例:
  • 第二个示例:
  • 参考:
  • 更多资料:
  • 注意,IK Analyzer需要使用其下载列表中的  IK Analyzer 2012FF_hf1.zip,否则在和Lucene 4.10配合使用时会报错。 

    我使用 intellij IDEA 12进行的测试。 


    建立java项目

    建立项目HelloLucene,导入Lucene的几个库。“File”->“Project Structure”->
    整合Lucene 4.10.1 与IK Analyzer_第4张图片


    IK Analyzer 2012FF_hf1.zip解压后的源码放入src目录,并将字典和配置文件放入src目录,最终如下:

    整合Lucene 4.10.1 与IK Analyzer_第5张图片

    一个示例:

    IKAnalyzerDemo.java中是我在其他地方找的一个示例,和IK的官方示例很像。内容如下:

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    package org.apache.lucene.demo;
    import java.io.IOException;
    import java.io.StringReader;
     
    import org.apache.lucene.analysis.Analyzer;
    import org.apache.lucene.analysis.TokenStream;
    import org.apache.lucene.analysis.tokenattributes.CharTermAttribute;
    import org.apache.lucene.document.Document;
    import org.apache.lucene.document.Field;
    import org.apache.lucene.index.IndexReader;
    import org.apache.lucene.index.IndexWriter;
    import org.apache.lucene.index.IndexWriterConfig;
    import org.apache.lucene.queryparser.classic.ParseException;
    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.RAMDirectory;
    import org.apache.lucene.util.Version;
    import org.wltea.analyzer.lucene.IKAnalyzer;
     
    public class IKAnalyzerDemo {
     
         /**
          * @param args
          * @throws IOException
          */
         public static void main(String[] args) throws IOException {
             // TODO Auto-generated method stub
             //建立索引
             String text1 = "IK Analyzer是一个结合词典分词和文法分词的中文分词开源工具包。它使用了全新的正向迭代最细粒度切" +
                     "分算法。" ;
             String text2 = "中文分词工具包可以和lucene是一起使用的" ;
             String text3 = "中文分词,你妹" ;
             String fieldName = "contents" ;
             Analyzer analyzer = new IKAnalyzer();
             RAMDirectory directory = new RAMDirectory();
             IndexWriterConfig writerConfig = new IndexWriterConfig(Version.LUCENE_34, analyzer);
             IndexWriter indexWriter = new IndexWriter(directory, writerConfig);
             Document document1 = new Document();
             document1.add( new Field( "ID" , "1" , Field.Store.YES, Field.Index.NOT_ANALYZED));
             document1.add( new Field(fieldName, text1, Field.Store.YES, Field.Index.ANALYZED));
             indexWriter.addDocument(document1);
     
             Document document2 = new Document();
             document2.add( new Field( "ID" , "2" , Field.Store.YES, Field.Index.NOT_ANALYZED));
             document2.add( new Field(fieldName, text2, Field.Store.YES, Field.Index.ANALYZED));
             indexWriter.addDocument(document2);
     
             Document document3 = new Document();
             document3.add( new Field( "ID" , "2" , Field.Store.YES, Field.Index.NOT_ANALYZED));
             document3.add( new Field(fieldName, text3, Field.Store.YES, Field.Index.ANALYZED));
             indexWriter.addDocument(document3);
             indexWriter.close();
     
     
             //搜索
             IndexReader indexReader = IndexReader.open(directory);
             IndexSearcher searcher = new IndexSearcher(indexReader);
             String request = "中文分词工具包" ;
             QueryParser parser = new QueryParser(Version.LUCENE_40, fieldName, analyzer);
             parser.setDefaultOperator(QueryParser.AND_OPERATOR);
             try {
                 Query query = parser.parse(request);
                 TopDocs topDocs = searcher.search(query, 5 );
                 System.out.println( "命中数:" +topDocs.totalHits);
                 ScoreDoc[] docs = topDocs.scoreDocs;
                 for (ScoreDoc doc : docs){
                     Document d = searcher.doc(doc.doc);
                     System.out.println( "内容:" +d.get(fieldName));
                 }
             } catch (ParseException e) {
                 // TODO Auto-generated catch block
                 e.printStackTrace();
             } finally {
                 if (indexReader != null ){
                     try {
                         indexReader.close();
                     } catch (IOException e) {
                         e.printStackTrace();
                     }
                 }
     
                 if (directory != null ){
                     try {
                         directory.close();
                     } catch (Exception e) {
                         e.printStackTrace();
                     }
                 }
             }
     
         }
     
    }


    这段代码是将索引文件放入内存中(RAMDirectory),运行结果如下: 
    ?
    1
    2
    3
    4
    加载扩展停止词典:stopword.dic
    命中数:2
    内容:中文分词工具包可以和lucene是一起使用的
    内容:IK Analyzer是一个结合词典分词和文法分词的中文分词开源工具包。它使用了全新的正向迭代最细粒度切分算法。



    这段代码有两个问题: 
    1、Field()已经不推荐按使用。 
    2、QueryParser()的使用方式也改变了。 

    下面是更加符合要求的示例。 

    第二个示例:

    MyIndex类用来创建索引: 
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    import org.apache.lucene.analysis.Analyzer;
    import org.apache.lucene.document.*;
    import org.apache.lucene.document.Field.Store;
    import org.apache.lucene.index.IndexWriter;
    import org.apache.lucene.index.IndexWriterConfig;
    import org.apache.lucene.store.Directory;
    import org.apache.lucene.store.FSDirectory;
    import org.apache.lucene.util.Version;
    import org.wltea.analyzer.lucene.IKAnalyzer;
     
    import java.io.File;
     
     
    public class MyIndex {
         public static void main(String[] args) {
             String ID;
             String content;
     
             ID = "1231" ;
             content = "BuzzFeed has compiled an amazing array of " +
                     "ridiculously strange bridesmaid snapshots, courtesy of Awkward Family Photos. " ;
             indexPost(ID, content);
     
             ID = "1234" ;
             content = "Lucene是apache软件基金会4 jakarta项目组的一个子项目,是一个开放源代码的全文检索引擎工具包" ;
             indexPost(ID, content);
     
             ID = "1235" ;
             content = "Lucene不是一个完整的全文索引应用,而是是一个用Java写的全文索引引擎工具包,它可以方便的嵌入到各种应用中实现" ;
             indexPost(ID, content);
     
         }
     
         public static void indexPost(String ID, String content) {
             File indexDir = new File( "/home/letian/lucene-test/index" );
     
             Analyzer analyzer = new IKAnalyzer();
     
             TextField postIdField = new TextField( "id" , ID, Store.YES);  // 不要用StringField
             TextField postContentField = new TextField( "content" , content, Store.YES);
     
             Document doc = new Document();
             doc.add(postIdField);
             doc.add(postContentField);
             IndexWriterConfig iwConfig = new IndexWriterConfig(Version.LUCENE_4_10_1, analyzer);
             iwConfig.setOpenMode(IndexWriterConfig.OpenMode.CREATE_OR_APPEND);
             try {
                 Directory fsDirectory = FSDirectory.open(indexDir);
                 IndexWriter indexWriter = new IndexWriter(fsDirectory, iwConfig);
                 indexWriter.addDocument(doc);
                 indexWriter.close();
             } catch (Exception e) {
                 e.printStackTrace();
             }
         }
    }



    索引以文件的形式存储在/home/letian/lucene-test/index目录中,Field被替换成了TextField,注意对于全文索引,不要使用StringField。 
    运行上面的代码,创建索引的结果如下: 
    整合Lucene 4.10.1 与IK Analyzer_第6张图片 



    MySearch.java是一个搜索的示例: 
    ?

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