Lucene 课程2---索引的建立

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1、索引的创建步骤

1）创建Directory

2）创建IndexWriter

3）创建文档并且添加索引

4）查询索引的基本信息

5）删除和更新索引

directory=FSDirectory.open(new File("E:/lucene/index02"));

writer=new IndexWriter(directory,
new IndexWriterConfig(Version.LUCENE_35, new StandardAnalyzer(Version.LUCENE_35)));

Document doc=null;
           for(int i=0;i<ids.length;i++){
               doc=new Document();
               doc.add(new Field("id",ids[i],Field.Store.YES,Field.Index.NOT_ANALYZED_NO_NORMS));
               doc.add(new Field("email",emails[i],Field.Store.YES,Field.Index.NOT_ANALYZED));
               doc.add(new Field("content",contents[i],Field.Store.NO,Field.Index.ANALYZED));
               doc.add(new Field("name",names[i],Field.Store.YES,Field.Index.NOT_ANALYZED_NO_NORMS));
               String et=emails[i].substring(emails[i].lastIndexOf("@")+1);
               System.out.println(et);
/*               if(scores.containsKey(et)){
                   doc.setBoost(scores.get(et));
               }else{
                   doc.setBoost(0.5f);
               }*/
               writer.addDocument(doc);
           }

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