如何在blob容器中列出文件夹内容？

import com.qcloud.cos.COSClient;
import com.qcloud.cos.model.ListObjectsRequest;
import com.qcloud.cos.model.ObjectListing;
import com.qcloud.cos.model.COSObjectSummary;

public class ListFolderContents {
    public static void main(String[] args) {
        // 创建COSClient对象
        COSClient cosClient = new COSClient();

        // 指定要操作的存储桶和文件夹路径
        String bucketName = "your-bucket-name";
        String folderPath = "your-folder-path";

        // 创建ListObjectsRequest对象，并设置存储桶和文件夹路径
        ListObjectsRequest listObjectsRequest = new ListObjectsRequest();
        listObjectsRequest.setBucketName(bucketName);
        listObjectsRequest.setPrefix(folderPath);

        // 调用ListObjects接口，获取文件夹内容列表
        ObjectListing objectListing = cosClient.listObjects(listObjectsRequest);
        List<COSObjectSummary> objectSummaries = objectListing.getObjectSummaries();

        // 遍历文件夹内容列表，输出文件名或子文件夹名
        for (COSObjectSummary objectSummary : objectSummaries) {
            System.out.println(objectSummary.getKey());
        }

        // 关闭COSClient对象
        cosClient.shutdown();
    }
}