EsearchX for java 是基于 okhttp + snack3 开发的,一个代码直白和简单的 Elasticsearch ORM 框架。
public class DemoApp {
public void demo() {
EsContext esx = new EsContext("localhost:30480");
//批量插入
List<LogDo> list = new ArrayList<>();
list.add(new LogDo());
esx.indice("user_log").insertList(list);
//一个简单的查询
LogDo result = esx.indice("user_log").selectById(LogDo.class, "1");
//一个略复杂些的查询
EsData<LogDo> result = esx.indice(indice)
.where(c -> c.useScore().must()
.term("tag", "list1")
.range("level", r -> r.gt(3)))
.orderByAsc("level")
.andByAsc("log_id")
.minScore(1)
.limit(50, 50)
.selectList(LogDo.class);
}
}
ONode oNode = context.indice(indice)
.where(c -> c.range("grade", r -> r.gte(3)))
.limit(0)
.aggs(a -> a.min("grade", "grade")) //别名
.selectAggs();
long gradeMin = oNode.get("grade").get("value").getLong();