Java - Elasticsearch查詢類型__Java

查詢類型

queryType	描述	後台代碼範例
matchAllQuery	全匹配	QueryBuilder qb = matchAllQuery();
matchQuery	單個匹配	QueryBuilder qb = matchQuery(     "name",     "kimchy elasticsearch" );
multiMatchQuery	多欄位單值匹配	QueryBuilder qb = multiMatchQuery(     "kimchy elasticsearch",     "user","message" );
wildcardQuery	模糊比對	WildcardQueryBuilder queryBuilder1 = QueryBuilders.wildcardQuery("empname","*emp*");

複合查詢類型

boolType	描述	後台代碼範例
AND	與	BoolQueryBuilder subCodeQuery = QueryBuilders.boolQuery();         WildcardQueryBuilder queryBuilder1 = QueryBuilders.wildcardQuery("empname","*emp*");         WildcardQueryBuilder queryBuilder2 = QueryBuilders.wildcardQuery("gender","*male*");         subCodeQuery.must(queryBuilder1);         subCodeQuery.must(queryBuilder2);
OR	或	類同（subCodeQuery.should）

分頁
通過from和size參數進行分頁。From定義查詢結果開始位置，size定義返回的hits（一條hit對應一條記錄）最大數量。

RestFul範例	後台代碼範例
{     "from" : 0,"size" : 10,     "query" : {         "term" : { "user": "kimchy" }     } }	SearchResponse response = client.prepareSearch("dept")                 .setTypes("employee")                 .setQuery(queryBuilder)                 .setFrom(0).setSize(2)                 .execute()                 .actionGet();