Java spring-mongodb获取指定字段的值

java操作mongodb数据库只获取指定字段的值这个问题困扰我好久，网上的内容要么不适用mongoTemplete，要么不好用

public List<Locality> selectHotCity(){
	DBObject dbObject = new BasicDBObject();
	dbObject.put("isHot", true);
	DBObject fieldObject = new BasicDBObject();
	fieldObject.put("zhName", true);
	fieldObject.put("_id", true);
	Query query = new BasicQuery(dbObject, fieldObject);
	List<Locality> hotCities=mongoTemplate.find(query, Locality.class);
	return hotCities;
}

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