一步一步跟我学习Lucene源码之lucene的各种Field

package com.lucene.field; import java.io.IOException; import org.apache.lucene.document.BinaryDocValuesField; import org.apache.lucene.document.Document; import org.apache.lucene.document.Field; import org.apache.lucene.document.FloatDocValuesField; import org.apache.lucene.document.FloatField; import org.apache.lucene.document.IntField; import org.apache.lucene.document.LongField; import org.apache.lucene.document.NumericDocValuesField; import org.apache.lucene.document.SortedDocValuesField; import org.apache.lucene.document.StringField; import org.apache.lucene.document.TextField; import org.apache.lucene.index.IndexWriter; import org.apache.lucene.search.IndexSearcher; import org.apache.lucene.search.MatchAllDocsQuery; import org.apache.lucene.search.Query; import org.apache.lucene.search.ScoreDoc; import org.apache.lucene.search.Sort; import org.apache.lucene.search.SortField; import org.apache.lucene.search.TopFieldDocs; import org.apache.lucene.util.BytesRef; import org.junit.Test; import com.lucene.index.IndexUtil; import com.lucene.search.SearchUtil; public class TextFieldTest { /** * 保存一个TextField */ @Test public void testIndexLongFieldStored() { Document document = new Document(); document.add(new TextField("textValue","12345", Field.Store.YES)); document.add(new SortedDocValuesField("textValue", new BytesRef("12345".getBytes()))); Document document1 = new Document(); document1.add(new TextField("textValue","23456", Field.Store.YES)); document1.add(new SortedDocValuesField("textValue", new BytesRef("23456".getBytes()))); IndexWriter writer = null; try { writer = IndexUtil.getIndexWriter("textFieldPath", false); writer.addDocument(document); writer.addDocument(document1); } catch (IOException e) { // TODO Auto-generated catch block e.printStackTrace(); }finally{ try { writer.commit(); writer.close(); } catch (IOException e) { // TODO Auto-generated catch block e.printStackTrace(); } } } /** * 测试TextField排序 */ @Test public void testTextFieldSort(){ try { IndexSearcher searcher = SearchUtil.getIndexSearcher("textFieldPath", null); //构建排序字段 SortField[] sortField = new SortField[1]; sortField[0] = new SortField("textValue",SortField.Type.STRING,true); Sort sort = new Sort(sortField); //查询所有结果 Query query = new MatchAllDocsQuery(); TopFieldDocs docs = searcher.search(query, 2, sort); ScoreDoc[] scores = docs.scoreDocs; //遍历结果 for (ScoreDoc scoreDoc : scores) { //System.out.println(searcher.doc(scoreDoc.doc));; Document doc = searcher.doc(scoreDoc.doc); System.out.println(doc); //System.out.println(doc.getField("binaryValue").numericValue()); } //searcher.search(query, results); } catch (IOException e) { // TODO Auto-generated catch block e.printStackTrace(); } } }