MultiSearch API

multi search API 允许在同一API中执行多个搜索请求。它的端点（endpoint）是 _msearch 。

首先请看MultiSearch API Query 文档

  1. SearchRequestBuilder srb1 = client
  2.     .prepareSearch().setQuery(QueryBuilders.queryStringQuery("elasticsearch")).setSize(1);
  3. SearchRequestBuilder srb2 = client
  4.     .prepareSearch().setQuery(QueryBuilders.matchQuery("name", "kimchy")).setSize(1);
  6. MultiSearchResponse sr = client.prepareMultiSearch()
  7.         .add(srb1)
  8.         .add(srb2)
  9.         .get();
  11. // You will get all individual responses from MultiSearchResponse#getResponses()
  12. long nbHits = 0;
  13. for (MultiSearchResponse.Item item : sr.getResponses()) {
  14.     SearchResponse response = item.getResponse();
  15.     nbHits += response.getHits().getTotalHits();
  16. }

实例