Elasticsearch 邻近查询示例

Elasticsearch 邻近查询示例(全切分分词)

JAVA API方式:

1 SpanNearQueryBuilder span = QueryBuilders.spanNearQuery();
2 span.clause(QueryBuilders.spanTermQuery("Text", "学"));
3 span.clause(QueryBuilders.spanTermQuery("Text", "联"));
4 span.inOrder(true).slop(1);
5 SearchRequestBuilder rs = client.prepareSearch("weiboall")
6                 .setQuery(span).setFrom(0).setSize(20);
7 SearchResponse response = rs.get();

ES 邻近查询JavaAPI

REST方式（JSON）:

 1 {
 2   "from": 0,
 3   "size": 20,
 4   "query": {
 5     "span_near": {
 6       "clauses": [
 7         {
 8           "span_term": {
 9             "Text": {
10               "value": "在"
11             }
12           }
13         },
14         {
15           "span_term": {
16             "Text": {
17               "value": "讨"
18             }
19           }
20         }
21       ],
22       "slop": 0,
23       "in_order": true
24     }
25   }
26 }

JSON邻近查询

Elasticsearch 邻近查询示例（IK分词）

这种方式利用前后缀组合查询，可以识别查询中的未登陆词、新词等

java API方式：

 1 MultiTermQueryBuilder mqb1 = new WildcardQueryBuilder("Text", "*学");
 2 SpanQueryBuilder sb1= new SpanMultiTermQueryBuilder(mqb1);
 3  MultiTermQueryBuilder mqb2 = new WildcardQueryBuilder("Text", "联*");
 4  SpanQueryBuilder sb2= new SpanMultiTermQueryBuilder(mqb2);
 5 SpanNearQueryBuilder spanb= new SpanNearQueryBuilder();
 6  spanb.clause(sb1);
 7  spanb.clause(sb2);
 8 spanb.inOrder(true);
 9 spanb.slop(0);
10 SearchRequestBuilder rs = client.prepareSearch("weiboall")
11                 .setQuery(spanb).setFrom(0).setSize(20);
12         System.out.println(rs.toString());
13         SearchResponse response = rs.get();

View Code

Rest(json)方式：

 1 {
 2   "from" : 0,
 3   "size" : 20,
 4   "query" : {
 5     "span_near" : {
 6       "clauses" : [ {
 7         "span_multi" : {
 8           "match" : {
 9             "wildcard" : {
10               "Text" : {
11                 "wildcard" : "*学"
12               }
13             }
14           }
15         }
16       }, {
17         "span_multi" : {
18           "match" : {
19             "wildcard" : {
20               "Text" : {
21                 "wildcard" : "联*"
22               }
23             }
24           }
25         }
26       } ],
27       "slop" : 0,
28       "in_order" : true
29     }
30   }
31 }

View Code

posted on 2015-03-05 15:56 天际霄鹰阅读(1700) 评论(0) 编辑收藏举报