ElasticSearch Java Client查询嵌套对象 [英] ElasticSearch Java Client querying nested objects
本文介绍了ElasticSearch Java Client查询嵌套对象的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着小编来一起学习吧!
问题描述
如何转换这种查询。
{
"query": {
"nested": {
"path": "consultations",
"query": {
"bool": {
"must": [
{
"match": {
"consultations.prescriptions": "alfuorism"
}
},
{
"match": {
"consultations.Diagnosis": "Fever"
}
}
]
}
}
}
}
}
使用QueryBuilders到Java客户端查询
To a Java Client query using QueryBuilders
推荐答案
下面的Java代码将生成您的查询
The folowing Java code will generate your query
public NestedQueryBuilder nestedBoolQuery(final Map<String, String> propertyValues, final String nestedPath) {
BoolQueryBuilder boolQueryBuilder = QueryBuilders.boolQuery();
Iterator<String> iterator = propertyValues.keySet().iterator();
while (iterator.hasNext()) {
String propertyName = iterator.next();
String propertValue = propertyValues.get(propertyName);
MatchQueryBuilder matchQuery = QueryBuilders.matchQuery(propertyName, propertValue);
boolQueryBuilder.must(matchQuery);
}
return QueryBuilders.nestedQuery(nestedPath, boolQueryBuilder);
}
参数 propertyValues
是:
Map<String, String> propertyValues = new HashMap<String, String>();
propertyValues.put("consultations.prescriptions", "alfuorism");
propertyValues.put("consultations.Diagnosis", "Fever");
参数 nestedPath
是:
consultations
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