Elasticsearch java api或过滤器

Question

我需要应用一个“OR”过滤器，它将等同于（'a'或'b'或'c'或'd'或'e'）类别的等效ES查询提供如下

"query_string": { 
         "query": "category: (\"a\", \"b\", \"c\", \"d\", \"e\")" 
        } 

我有下面提到的JAVA ES API代码，我很感兴趣的是在Java中添加OR过滤器。有人可以帮忙吗？

SearchSourceBuilder searchSourceBuilder = new SearchSourceBuilder() 
    searchSourceBuilder.query(QueryBuilders.boolQuery() 
       .must(QueryBuilders.filteredQuery(QueryBuilders.matchAllQuery(), 
         FilterBuilders.termFilter("category","a"))) 
       .must(QueryBuilders.rangeQuery("@timestamp").from(fromHr).to(toHr))) 
       .fields(fieldList); 

Answer 1

根据你的例子，我假设你使用的是ES 1.x，并假定RangeQuery应该是一个查询。如果我理解你的问题正确，你想要做这样的事情：

QueryBuilders.filteredQuery(
QueryBuilders.rangeQuery("@timestamp").from(fromHr).to(toHr), 
FilterBuilders.boolFilter() 
    .should(FilterBuilders.termFilter("category","a")) 
    .should(FilterBuilders.termFilter("category","b")) 
    .should(FilterBuilders.termFilter("category","c")) 
    .should(FilterBuilders.termFilter("category","d")) 
    .should(FilterBuilders.termFilter("category","e")) 
) 

但是，您也可以使用terms filter：

QueryBuilders.filteredQuery(
    QueryBuilders.rangeQuery("@timestamp").from(fromHr).to(toHr), 
    FilterBuilders.termsFilter("category", "a", "b", "c", "d", "e", "f"))