java调用minio查看桶中的文件夹是否存在

在Java中，使用MinIO SDK来检查MinIO存储桶中的文件夹是否存在，首先需要设置连接到MinIO服务器所需的凭据，例如endpoint、access key和secret key。以下是一个简单的步骤示例：

import io.minio.MinioClient;
import io.minio.errors.MinioException;

public class MinioFolderExistenceCheck {
    private static final String MINIO_ENDPOINT = "your-minio-endpoint";
    private static final String ACCESS_KEY = "your-access-key";
    private static final String SECRET_KEY = "your-secret-key";
    private static final String BUCKET_NAME = "your-bucket-name";
    private static final String FOLDER_PATH = "/your-folder-path";

    public static void main(String[] args) {
        try {
            // 创建Minio客户端
            MinioClient minioClient = new MinioClient(MINIO_ENDPOINT, ACCESS_KEY, SECRET_KEY);

            // 检查文件夹是否存在
            boolean folderExists = minioClient.bucketExists(BUCKET_NAME, FOLDER_PATH);

            if (folderExists) {
                System.out.println("Folder " + FOLDER_PATH + " exists in bucket " + BUCKET_NAME);
            } else {
                System.out.println("Folder " + FOLDER_PATH + " does not exist in bucket " + BUCKET_NAME);
            }

            // 关闭连接
            minioClient.close();
        } catch (MinioException e) {
            System.err.println("Error checking folder existence: " + e.getMessage());
        }
    }
}

在这个例子中，`bucketExists`方法会返回布尔值，如果文件夹存在则为true，反之为false。