数值和日期索引

【数值型】

 1     /**
 2      * 创建索引
 3      */
 4     @Test
 5     public void testIndex(){
 6         //存储3篇文章的信息。包括：id、标题、作者、字数、发布日期、内容
 7         int[] ids = {1,2,3};
 8         String[] titles = {"Hello","I love you","morning"};
 9         String[] authors = {"Hello Mike","HanMeimei","Tom"};
10         //正文的字数（数值类型数据）
11         int[] sizes = {7000,98092,500};
12         //发布日期(日期类型数据)
13         Date[] publishDate={fmt("2010-2-23"),fmt("2015-8-06"),fmt("2017-3-12")};
14         
15         String[] contents= {"Hello,My Name Is Mike; good","Tome,I Love You; good，good,good","Good Moring,I'm so sorry; good,，good,good，good,good"};
16         
17         IndexWriter writer = null;
18         
19         try {
20             //1、创建Directory
21             Directory directory = FSDirectory.open(new File("E:\\lucene\\index2"));
22             
23              ......
24             //3、创建Document
25             Document doc = null;
26             
27             //4、设置Field
28             for(int i = 0;i<ids.length;i++){
29                 doc = new Document();
30                 //为文档添加域(属性)
31                 String id = Integer.toString(ids[i]);
32                 doc.add(new Field("id",id,Field.Store.YES,Field.Index.NOT_ANALYZED_NO_NORMS));
33                 doc.add(new Field("title",titles[i],Field.Store.YES,Field.Index.NOT_ANALYZED));
34                 doc.add(new Field("author",authors[i],Field.Store.YES,Field.Index.NOT_ANALYZED));                
35                 doc.add(new Field("content", contents[i],Field.Store.NO,Field.Index.ANALYZED));
36                 
37                 //数值型索引
38                 doc.add(new NumericField("size",Field.Store.YES,false).setIntValue(sizes[i]));
39                 
40                 //日期类型数据索引
41                 doc.add(new NumericField("date", Field.Store.YES, false).setLongValue(publishDate[i].getTime()));
42                 
43                 //修改索引的权值
44                 //默认权值为1.0
45                 //将Id为1的数据权值调整到5.0
46                 if(ids[i] == 1)
47                     doc.setBoost(5.0f);
48                 
49                 writer.addDocument(doc);
50             }
51         } catch (IOException e) {
52             e.printStackTrace();
53         }
54         finally{
55          ......
56         }
57     }

 

posted @ 2018-10-17 20:39  猩生柯北  阅读(436)  评论(0)  编辑  收藏  举报