在Java中，如何根据ID查询elasticsearch中的嵌套字段？

Question

ScoreMode mode=ScoreMode.Total;
        SearchRequestBuilder searchRequestBuilder = 
                    client.prepareSearch() 
                          .setIndices("commons")
                          .setTypes("webpage")
                          //.fields("id")
                          .setSize(10000)
                          .setQuery(QueryBuilders
                                  .nestedQuery("imgSource", 
                                          QueryBuilders.boolQuery()
                                  .must(
                                          QueryBuilders.matchQuery(
                                                  "id","48ca52e0d733c5093c08aa4df0b073f7")
                                          ),mode));

this is my code,but result is null,So I don't know if I made a mistake...

Answer 1

As per java api for nested queries , Your code snippet should look something like below:

Suppose I want to query name field inside nested document child , then code snippet will be:

ScoreMode mode=ScoreMode.Total;
    SearchRequestBuilder searchRequestBuilder = 
                client.prepareSearch() 
                      .setIndices(INDEX_NAME)
                      .setTypes(TYPE_NAME)
                      .setQuery(QueryBuilders
                              .nestedQuery("child", 
                                      QueryBuilders.boolQuery()
                              .must(
                                      QueryBuilders.matchQuery(
                                              "child.name","CHILD_NAME")
                                      ),mode));

So, your match query is incorrect, it should be imgSource.id