如何通过JSON将查询设置为Elasticsearch SearchRequest? [英] How to set the query via JSON to an Elasticsearch SearchRequest?

问题描述

Elasticsearch :6.1.2

我有一个通过JSON输入的查询，想使用

I have an input query via JSON and would like to use the high level Java API to construct a search request using that query data.

String jsonQuery = "..."
SearchRequest searchRequest = new SearchRequest()
SearchSourceBuilder builder = ?
searchRequest.source(builder);

我试图通过以下方式构造构建器:

I tried to construct the builder via:

SearchSourceBuilder.fromXContent(XContentType.JSON.xContent().createParser(NamedXContentRegistry.EMPTY, query));

但这会产生:

由于:org.elasticsearch.ElasticsearchException:namedObject是 在以下位置不支持此解析器 org.elasticsearch.common.xcontent.NamedXContentRegistry.parseNamedObject(NamedXContentRegistry.java:129) 〜[elasticsearch-6.1.2.jar:6.1.2]在 org.elasticsearch.common.xcontent.support.AbstractXContentParser.namedObject(AbstractXContentParser.java:402) 〜[elasticsearch-6.1.2.jar:6.1.2]在 org.elasticsearch.index.query.AbstractQueryBuilder.parseInnerQueryBuilder(AbstractQueryBuilder.java:313) 〜[elasticsearch-6.1.2.jar:6.1.2]在 org.elasticsearch.search.builder.SearchSourceBuilder.parseXContent(SearchSourceBuilder.java:1003) 〜[elasticsearch-6.1.2.jar:6.1.2]在 org.elasticsearch.search.builder.SearchSourceBuilder.fromXContent(SearchSourceBuilder.java:115) 〜[elasticsearch-6.1.2.jar:6.1.2]

Caused by: org.elasticsearch.ElasticsearchException: namedObject is not supported for this parser at org.elasticsearch.common.xcontent.NamedXContentRegistry.parseNamedObject(NamedXContentRegistry.java:129) ~[elasticsearch-6.1.2.jar:6.1.2] at org.elasticsearch.common.xcontent.support.AbstractXContentParser.namedObject(AbstractXContentParser.java:402) ~[elasticsearch-6.1.2.jar:6.1.2] at org.elasticsearch.index.query.AbstractQueryBuilder.parseInnerQueryBuilder(AbstractQueryBuilder.java:313) ~[elasticsearch-6.1.2.jar:6.1.2] at org.elasticsearch.search.builder.SearchSourceBuilder.parseXContent(SearchSourceBuilder.java:1003) ~[elasticsearch-6.1.2.jar:6.1.2] at org.elasticsearch.search.builder.SearchSourceBuilder.fromXContent(SearchSourceBuilder.java:115) ~[elasticsearch-6.1.2.jar:6.1.2]

推荐答案

我现在以这种方式生成SearchSourceBuilder:

I'm now generating the SearchSourceBuilder this way:

String query = "..."
SearchSourceBuilder searchSourceBuilder = new SearchSourceBuilder();
SearchModule searchModule = new SearchModule(Settings.EMPTY, false, Collections.emptyList());
try (XContentParser parser = XContentFactory.xContent(XContentType.JSON).createParser(new NamedXContentRegistry(searchModule
            .getNamedXContents()), query)) {
    searchSourceBuilder.parseXContent(parser);
}

这篇关于如何通过JSON将查询设置为Elasticsearch SearchRequest?的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！