https://www.elastic.co/guide/en/elasticsearch/reference/6.4/query-dsl-wrapper-query.html
This query is more useful in the context of the Java high-level REST client or transport client to also accept queries as json formatted string. In these cases queries can be specified as a json or yaml formatted string or as a query builder (which is a available in the Java high-level REST client).
GET /_search
{
"query" : {
"wrapper": {
"query" : "eyJ0ZXJtIiA6IHsgInVzZXIiIDogIktpbWNoeSIgfX0=" // Base64 encoded string: {"term" : { "user" : "Kimchy" }}
}
}
}
https://blog.csdn.net/qq_41370896/article/details/83658948
String dsl = "";
Map maps = (Map)JSON.parse(dsl);
maps.get("query");// dsl query string
https://blog.csdn.net/tcyzhyx/article/details/84566734
https://www.jianshu.com/p/216ca70d9e62
StringBuffer dsl = new StringBuffer();
dsl.append("{\"bool\": {");
dsl.append(" \"must\": [");
dsl.append(" {");
dsl.append(" \"term\": {");
dsl.append(" \"mdid.keyword\": {");
dsl.append(" \"value\": \"2fa9d41e1af460e0d47ce36ca8a98737\"");
dsl.append(" }");
dsl.append(" }");
dsl.append(" }");
dsl.append(" ]");
dsl.append(" }");
dsl.append("}");
WrapperQueryBuilder wqb = QueryBuilders.wrapperQuery(dsl.toString());
SearchResponse searchResponse = client.prepareSearch(basicsysCodeManager.getYjzxYjxxIndex())
.setTypes(basicsysCodeManager.getYjzxYjxxType()).setQuery(wqb).setSize(10).get();
SearchHit[] hits = searchResponse.getHits().getHits();
for(SearchHit hit : hits){
String content = hit.getSourceAsString();
System.out.println(content);
}
"{\"query\":{\"match_all\": {}},\"aggs\":{\"avg1\":{\"avg\":{\"field\":\"age\"}}}}"
SearchSourceBuilder ssb = new SearchSourceBuilder();
// add the query part
String query ="{\"match_all\": {}}";
WrapperQueryBuilder wrapQB = new WrapperQueryBuilder(query);
ssb.query(wrapQB);
// add the aggregation part
AvgBuilder avgAgg = AggregationBuilders.avg("avg1").field("age");
ssb.aggregation(avgAgg);
略