lucene多条件查询

  /**
     * 多条件查询
     *
     * @param termQueryList
     * @return
     */
    public List<Document> complexSearch() {
        List<Document> docList = new ArrayList<Document>();
        try {
            directory = FSDirectory.open(new File(LuceneConstant.INDEX_PATH));//打开索引文件夹  
            IndexReader reader = DirectoryReader.open(directory);//读取目录  
            IndexSearcher search = new IndexSearcher(reader);//初始化查询组件  

            BooleanQuery query = new BooleanQuery();;
         query.add(new PrefixQuery(new Term("pinYin", letter)),BooleanClause.Occur.MUST);
         query.add(NumericRangeQuery.newDoubleRange("price",minPrice,maxPrice,true, false),BooleanClause.Occur.MUST);
         query.add(new TermQuery(new Term("name", name)),BooleanClause.Occur.MUST);
            TopDocs td = search.search(query, 10000);//获取匹配上元素的一个docid  
            for (ScoreDoc doc : td.scoreDocs) {
                docList.add(search.doc(doc.doc));
            }
            reader.close();//关闭资源  
            directory.close();//关闭连接  
        } catch (Exception e) {
            e.printStackTrace();
        }
        return docList;
    }

上面的例子给出了，前导模糊查询和范围查询普通查询的组合，BooleanClause.Occur.MUST，表示他们是与的关系

MUST, SHOULD, MUST_NOT 与 或 非

 

比如像这样更复杂的嵌套也是可以的。

(a = 1 or a = 2) and (b = 3 or b = 4) or (c <> 5 and c = 6)

实现方式就是在BooleanQuery中嵌套BooleanQuery