利用Lucene如何实现布尔搜索功能

package LuceneSearch; import org.apache.lucene.analysis.standard.StandardAnalyzer; import org.apache.lucene.document.Document; import org.apache.lucene.document.Field; import org.apache.lucene.index.IndexWriter; import org.apache.lucene.index.Term; import org.apache.lucene.search.BooleanClause; import org.apache.lucene.search.BooleanQuery; import org.apache.lucene.search.Hits; import org.apache.lucene.search.IndexSearcher; import org.apache.lucene.search.TermQuery;  public class BooleanQueryTest {  static final String INDEX_STORE_PATH = "E:\\编程局\\Java编程处\\Index\\";  public static void main(String[] args) {  // TODO Auto-generated method stub  try{   IndexWriter writer = new IndexWriter(INDEX_STORE_PATH,new StandardAnalyzer(),true);   writer.setUseCompoundFile(false);   //创建8个文档   Document doc1 = new Document();   Document doc2 = new Document();   Document doc3 = new Document();   Document doc4 = new Document();   Document doc5 = new Document();   Document doc6 = new Document();   Document doc7 = new Document();   Document doc8 = new Document();   Field f1 = new Field("bookname","钢铁是怎样炼成的",Field.Store.YES,Field.Index.TOKENIZED);   Field f2 = new Field("bookname","英雄儿女",Field.Store.YES,Field.Index.TOKENIZED);   Field f3 = new Field("bookname","浮生六记",Field.Store.YES,Field.Index.TOKENIZED);   Field f4 = new Field("bookname","太平广记",Field.Store.YES,Field.Index.TOKENIZED);   Field f5 = new Field("bookname","文化苦旅",Field.Store.YES,Field.Index.TOKENIZED);   Field f6 = new Field("bookname","白夜行",Field.Store.YES,Field.Index.TOKENIZED);   Field f7 = new Field("bookname","白毛女",Field.Store.YES,Field.Index.TOKENIZED);   Field f8 = new Field("bookname","子不语",Field.Store.YES,Field.Index.TOKENIZED);   doc1.add(f1);   doc2.add(f2);   doc3.add(f3);   doc4.add(f4);   doc5.add(f5);   doc6.add(f6);   doc7.add(f7);   doc8.add(f8);   writer.addDocument(doc1);   writer.addDocument(doc2);   writer.addDocument(doc3);   writer.addDocument(doc4);   writer.addDocument(doc5);   writer.addDocument(doc6);   writer.addDocument(doc7);   writer.addDocument(doc8);   writer.close();   System.out.println("创建索引成功");   IndexSearcher searcher = new IndexSearcher(INDEX_STORE_PATH);   //创建两个词条对象   Term t1 = new Term("bookname","生");   Term t2 = new Term("bookname","记");   TermQuery q1 = new TermQuery(t1);   TermQuery q2 = new TermQuery(t2);   BooleanQuery query = new BooleanQuery();   query.add(q1,BooleanClause.Occur.MUST);   query.add(q2,BooleanClause.Occur.MUST);   Hits hits = searcher.search(query);   for(int i = 0;i<hits.length();i++){   System.out.println(hits.doc(i));   }   System.out.println("搜索成功");  }catch(Exception e){   System.out.println(e.getStackTrace());  }  } }