mongodb创建索引(java)
解决方法:
String collectionName = "collectionName";
List<BasicDBObject> bsons = new ArrayList<BasicDBObject>();
bsons.add(new BasicDBObject().append("account", 1));//1升序,-1降序
mongodb创建索引(java)
解决方法:
String collectionName = "collectionName";
List<BasicDBObject> bsons = new ArrayList<BasicDBObject>();
bsons.add(new BasicDBObject().append("account", 1));//1升序,-1降序