java mongo 查询统计 distinct，mongodistinct,Date lastExc

来源： javaer 分享于 2019-04-09 点击 39108 次点评：43

Date lastExcTime=new Date();

CommandResult result = mongoTemplate.getDb().command(

new BasicDBObject("distinct", "homeLog").append("key",

"userId").append(

"query",

new BasicDBObject("createTime", new BasicDBObject(

"$gte", lastExcTime))));

JSONArray bean=JSONArray.parseArray(result.getString("values"));

                    System.out.println(bean.size());