Lucene分页-----SearcherAfter

1 /**
2      * 分页，SearcherAfter
3      * @param query
4      * @param pageIndex
5      * @param pageSize
6      */
7     public void searchPageByAfter(String query,int pageIndex,int pageSize){
8         try {
9             IndexSearcher indexSearcher = getSearcher();
10             QueryParser parser = new QueryParser("content", new StandardAnalyzer());
11             Query q = parser.parse(query);
12             //获取上一页的最后一个元素
13             ScoreDoc lastScoreDoc = getLastScoreDoc(pageIndex, pageSize, q, indexSearcher);
14             //通过最后一个元素搜索下页的pageSize个元素
15             TopDocs topDocs = indexSearcher.searchAfter(lastScoreDoc,q,pageSize);
16             System.out.println("共："+topDocs.totalHits);
17             for (ScoreDoc item : topDocs.scoreDocs) {
18                 Document doc = indexSearcher.doc(item.doc);
19                 System.out.println("名字:" + doc.get("name") + ",邮箱:" + doc.get("email") + ",id:" + doc.get("id"));
20             }
21         } catch (Exception e) {
22             // TODO: handle exception
23             e.printStackTrace();
24         }finally{
25             try {
26                 directory.close();
27             } catch (IOException e) {
28                 // TODO Auto-generated catch block
29                 e.printStackTrace();
30             }
31         }
32     }

@Test
public void searchPageByAfter(){
SearchUtil util = new SearchUtil();
util.searchPageByAfter("like",1,3);
}