1 package com.kite.dispage;
2
3 import java.util.ArrayList;
4 import java.util.List;
5
6 import org.apache.lucene.document.Document;
7 import org.apache.lucene.index.IndexWriter;
8 import org.apache.lucene.index.IndexWriter.MaxFieldLength;
9 import org.apache.lucene.queryParser.MultiFieldQueryParser;
10 import org.apache.lucene.queryParser.QueryParser;
11 import org.apache.lucene.search.IndexSearcher;
12 import org.apache.lucene.search.Query;
13 import org.apache.lucene.search.ScoreDoc;
14 import org.apache.lucene.search.TopDocs;
15 import org.apache.lucene.util.Version;
16 import org.junit.Test;
17
18 import com.kite.bean.Article;
19 import com.kite.luncene.utils.DocumentUtils;
20 import com.kite.luncene.utils.LunceneUtils;
21
22 /**
23 * 分页
24 * @author admin
25 *
26 */
27 public class DisPageTest
28 {
29 @Test
30 public void testCreateIndexBeath() throws Exception
31 {
32 IndexWriter indexWriter = new IndexWriter(LunceneUtils.directory, LunceneUtils.analyzer, MaxFieldLength.LIMITED);
33 for(int i = 0; i < 1000; i++)
34 {
35
36 Article article = new Article();
37 article.setId(1L + i);
38 article.setTitle("luncenes是一个好难写的东西");
39 article.setContent("百度，谷歌是很好的搜索引擎");
40 //通过工具类转换成document
41 Document document = DocumentUtils.articleToDocument(article);
42 indexWriter.addDocument(document);
43 }
44
45 indexWriter.close();
46 }
47
48 /**
49 *
50 * @param firstResult
51 * 当前页的第一行在集合中的位置
52 * @param maxResult
53 * 每页显示的最大的行数
54 * @throws Exception
55 */
56 public void testSearchIndexDispage(int firstResult,int maxResult) throws Exception
57 {
58 IndexSearcher indexSearcher = new IndexSearcher(LunceneUtils.directory);
59 QueryParser queryParser = new MultiFieldQueryParser(Version.LUCENE_30, new String[]{"title","content"}, LunceneUtils.analyzer);
60 Query query = queryParser.parse("luncenes");
61 //查询的是起点位置到一页显示多少行
62 TopDocs topDocs = indexSearcher.search(query,firstResult+maxResult);
63 //返回
64 int count = Math.min(topDocs.totalHits, firstResult+maxResult);
65 ScoreDoc[] scoreDocs = topDocs.scoreDocs;
66 List<Article> articleList = new ArrayList<Article>();
67 for(int i=firstResult;i<count;i++){
68 Document document = indexSearcher.doc(scoreDocs[i].doc);
69 Article article = DocumentUtils.documentToArticle(document);
70 articleList.add(article);
71 }
72
73 for(Article article:articleList){
74 System.out.println(article.getId());
75 System.out.println(article.getTitle());
76 System.out.println(article.getContent());
77 }
78 }
79 /**
80 * 分页测试
81 */
82 @Test
83 public void testDisPage() throws Exception
84 {
85 this.testSearchIndexDispage(500,100);
86 }
87 }
