Elasticsearch 邻近查询示例

Elasticsearch 邻近查询示例(全切分分词)

JAVA API方式:

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

ES 邻近查询JavaAPI

REST方式（JSON）:

 {
   "from": 0,
   "size": 20,
   "query": {
     "span_near": {
       "clauses": [
         {
           "span_term": {
             "Text": {
               "value": "在"
             }
           }
         },
         {
           "span_term": {
             "Text": {
               "value": "讨"
             }
           }
         }
       ],
       "slop": 0,
       "in_order": true
     }
   }
 }

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：

 MultiTermQueryBuilder mqb1 = new WildcardQueryBuilder("Text", "*学");
 SpanQueryBuilder sb1= new SpanMultiTermQueryBuilder(mqb1);
  MultiTermQueryBuilder mqb2 = new WildcardQueryBuilder("Text", "联*");
  SpanQueryBuilder sb2= new SpanMultiTermQueryBuilder(mqb2);
 SpanNearQueryBuilder spanb= new SpanNearQueryBuilder();
  spanb.clause(sb1);
  spanb.clause(sb2);
 spanb.inOrder(true);
 spanb.slop();
 SearchRequestBuilder rs = client.prepareSearch("weiboall")
                 .setQuery(spanb).setFrom().setSize();
         System.out.println(rs.toString());
         SearchResponse response = rs.get();

Rest(json)方式：

 {
   "from" : 0,
   "size" : 20,
   "query" : {
     "span_near" : {
       "clauses" : [ {
         "span_multi" : {
           "match" : {
             "wildcard" : {
               "Text" : {
                 "wildcard" : "*学"
               }
             }
           }
         }
       }, {
         "span_multi" : {
           "match" : {
             "wildcard" : {
               "Text" : {
                 "wildcard" : "联*"
               }
             }
           }
         }
       } ],
       "slop" : 0,
       "in_order" : true
     }
   }
 }