Idea Debug about elasticsearch

最近在做ES的aggregation，順便說一下收穫。

一：版本問題

dependency>
    <groupId>org.springframework.data</groupId>
    <artifactId>spring-data-elasticsearch</artifactId>
    <version>3.1.4.RELEASE</version>
</dependency>
<dependency>
    <groupId>org.elasticsearch</groupId>
    <artifactId>elasticsearch</artifactId>
    <version>${elasticserch.version}</version>
</dependency>
<dependency>
    <groupId>org.elasticsearch.client</groupId>
    <artifactId>transport</artifactId>
    <version>${elasticserch.version}</version>
</dependency>
<dependency>
    <groupId>org.elasticsearch.plugin</groupId>
    <artifactId>transport-netty4-client</artifactId>
    <version>6.8.0</version>
</dependency>

這是配置的版本，.version設置爲6.8 應用的es版本也是6.8

2.對於aggregation的數據解決

當應用SearchBuilder進行查詢後，應用管道流查詢出的數據特別繁瑣

在應用debug調試的時候關注了一下

SearchResponse srps = sr.setSource(sourceBuilder).get();
//處理結果
Map<String,Aggregation> aggMap =srps.getAggregations().asMap();
InternalDateHistogram userCountDay = (InternalDateHistogram)aggMap.get("userDayCount");
List<InternalDateHistogram.Bucket> list = userCountDay.getBuckets();
for (InternalDateHistogram.Bucket in:list){
    Aggregations aggregations = in.getAggregations();
    List<Aggregation> aggregations1= aggregations.asList();
    for(Aggregation a:aggregations1){
        Double value = ((InternalSimpleValue) (a)).getValue();
        Long putIn = new Double(value).longValue();
        countList.add(new EsUserCount(putIn,in.getKeyAsString()));
    }
}

最後將管道中的數據去出，着實費了一大波的勁兒