package tools.lucene; 
     
    import java.io.File; 
     
    import org.apache.lucene.analysis.Analyzer; 
    import org.apache.lucene.analysis.PerFieldAnalyzerWrapper; 
    import org.apache.lucene.analysis.WhitespaceAnalyzer; 
    import org.apache.lucene.document.Document; 
    import org.apache.lucene.document.Field; 
    import org.apache.lucene.document.NumericField; 
    import org.apache.lucene.index.IndexReader; 
    import org.apache.lucene.index.IndexWriter; 
    import org.apache.lucene.search.IndexSearcher; 
    import org.apache.lucene.search.NumericRangeQuery; 
    import org.apache.lucene.search.Query; 
    import org.apache.lucene.search.ScoreDoc; 
    import org.apache.lucene.search.Searcher; 
    import org.apache.lucene.search.TopDocs; 
    import org.apache.lucene.store.FSDirectory; 
    import org.wltea.analyzer.lucene.IKAnalyzer; 
     
    public class LuceneIndexWriter { 
         
        public static String index_path="D:\\ix"; 
        public static String index_path2="D:\\ix2"; 
        public static void main(String[]args) throws Exception{ 
             
             
              
            createMultiValueIndex(); 
            //createIndex();  
            //词范围查询，但需要将价格字符串格式化，按位数对此，前面补0 
            //TermRangeQuery  trquery  = new TermRangeQuery("price", "088", "100",true, true); 
            //按数字类型范围查询 
            Query trquery  = NumericRangeQuery.newIntRange("price", 1, 99,true, true); 
             
            //IndexReader  indexReader = IndexReader.open(FSDirectory.open(new File(index_path))); 
            IndexReader  indexReader = IndexReader.open(FSDirectory.open(new File(index_path2))); 
             
            Searcher  searcher = new IndexSearcher(indexReader); 
             
            TopDocs topDocs = searcher.search(trquery,100); 
             
            for (ScoreDoc hits:topDocs.scoreDocs){ 
                 
                Document doc = searcher.doc(hits.doc); 
                System.out.println("doc = "+doc.getValues("price")); 
                 
            } 
             
     
             
        } 
        /**
         * document包含多个同名price Filed
         */ 
        private static void createMultiValueIndex() { 
            Analyzer  analyzer = new IKAnalyzer(); 
            PerFieldAnalyzerWrapper  perFieldAnalyzerWrapper = new PerFieldAnalyzerWrapper(analyzer); 
            try { 
                 
                //perFieldAnalyzerWrapper.addAnalyzer("price", new WhitespaceAnalyzer()); 
                IndexWriter writer = new IndexWriter(FSDirectory.open(new File(index_path2)), perFieldAnalyzerWrapper, true,IndexWriter.MaxFieldLength.LIMITED); 
                Document doc  = new Document();000 
                doc.add(new Field("hotelName", "test2", Field.Store.YES, Field.Index.ANALYZED)); 
     
                doc.add(new NumericField("price", Field.Store.YES, true).setIntValue(100)); 
                doc.add(new NumericField("price", Field.Store.YES, true).setIntValue(200)); 
                doc.add(new NumericField("price", Field.Store.YES, true).setIntValue(300)); 
                writer.addDocument(doc); 
                doc  = new Document(); 
                doc.add(new Field("hotelName", "test3", Field.Store.YES, Field.Index.ANALYZED)); 
                                //增加多个同名字段(price) 
                doc.add(new NumericField("price", Field.Store.YES, true).setIntValue(99)); 
                doc.add(new NumericField("price", Field.Store.YES, true).setIntValue(213)); 
                writer.addDocument(doc); 
                 
                 
                doc  = new Document(); 
                doc.add(new Field("hotelName", "test1", Field.Store.YES, Field.Index.ANALYZED)); 
                doc.add(new NumericField("price", Field.Store.YES, true).setIntValue(400)); 
                doc.add(new NumericField("price", Field.Store.YES, true).setIntValue(200)); 
                writer.addDocument(doc); 
                 
             
                 
                writer.close(); 
                 
            } catch (Exception e) { 
                // TODO Auto-generated catch block 
                e.printStackTrace(); 
            } 
        } 
        /**
         * price中价格按照空格分隔，保存到一个field
         */ 
        private static void createIndex() { 
            Analyzer  analyzer = new IKAnalyzer(); 
            PerFieldAnalyzerWrapper  perFieldAnalyzerWrapper = new PerFieldAnalyzerWrapper(analyzer); 
            try { 
                 
                perFieldAnalyzerWrapper.addAnalyzer("price", new WhitespaceAnalyzer()); 
                IndexWriter writer = new IndexWriter(FSDirectory.open(new File(index_path)), perFieldAnalyzerWrapper, true,IndexWriter.MaxFieldLength.LIMITED); 
                Document doc  = new Document(); 
                doc.add(new Field("hotelName", "test2", Field.Store.YES, Field.Index.ANALYZED)); 
                doc.add(new Field("price", "100 200 300", Field.Store.YES, Field.Index.ANALYZED)); 
                writer.addDocument(doc); 
                 
                doc  = new Document(); 
                doc.add(new Field("hotelName", "test1", Field.Store.YES, Field.Index.ANALYZED)); 
                doc.add(new Field("price", "400 500", Field.Store.YES, Field.Index.ANALYZED)); 
                writer.addDocument(doc); 
                 
                doc  = new Document(); 
                doc.add(new Field("hotelName", "test8", Field.Store.YES, Field.Index.ANALYZED)); 
                                 //price字段以空格分隔，使用WhitespaceAnalyzer分词 
                doc.add(new Field("price", "213 588 099 ", Field.Store.YES, Field.Index.ANALYZED)); 
                writer.addDocument(doc); 
                 
                doc  = new Document(); 
                doc.add(new Field("hotelName", "test3", Field.Store.YES, Field.Index.ANALYZED)); 
                doc.add(new Field("price", "600 700 518", Field.Store.YES, Field.Index.ANALYZED)); 
                writer.addDocument(doc); 
                 
                 
                doc  = new Document(); 
                doc.add(new Field("hotelName", "test4", Field.Store.YES, Field.Index.ANALYZED)); 
                doc.add(new Field("price", "200 228 518", Field.Store.YES, Field.Index.ANALYZED)); 
                writer.addDocument(doc); 
                 
                writer.close(); 
                 
            } catch (Exception e) { 
                // TODO Auto-generated catch block 
                e.printStackTrace(); 
            } 
        } 
    }