Spring Data MongoDB聚合与日期匹配

import org.springframework.data.mongodb.core.MongoTemplate;
import org.springframework.data.mongodb.core.aggregation.Aggregation;
import org.springframework.data.mongodb.core.aggregation.MatchOperation;
import org.springframework.data.mongodb.core.query.Criteria;
import org.springframework.stereotype.Component;

import java.util.Date;

@Component
public class AggregationExample {

    private final MongoTemplate mongoTemplate;

    public AggregationExample(MongoTemplate mongoTemplate) {
        this.mongoTemplate = mongoTemplate;
    }

    public void performAggregation(Date startDate, Date endDate) {
        MatchOperation matchOperation = Aggregation.match(
                Criteria.where("dateField").gte(startDate).lte(endDate)
        );

        Aggregation aggregation = Aggregation.newAggregation(matchOperation);

        // 执行聚合操作并获取结果
        AggregationResults<ResultType> results = mongoTemplate.aggregate(
                aggregation, "collectionName", ResultType.class
        );

        // 处理结果
        List<ResultType> resultList = results.getMappedResults();
        // ...
    }
}