本文主要讲一讲搜索的过滤器：首先要引入基类，
import org.apache.lucene.search.Filter;
建立索引：
public static void filter(String path)throws Exception { IndexWriter writer=new IndexWriter(path,new StandardAnalyzer(),true); writer.setUseCompoundFile(false); Document doc1=new Document(); Field f1=new Field("bookNumber","000003",Field.Store.YES,Field.Index.UN_TOKENIZED); Field f2=new Field("bookname","论宇称非对称模型",Field.Store.YES,Field.Index.TOKENIZED); Field f3=ne