用java代码写出minio文件从老的minio服务器转移到新的minio服务器

import io.minio.MinioClient;
import io.minio.errors.MinioException;
import java.io.IOException;
import java.security.InvalidKeyException;
import java.security.NoSuchAlgorithmException;

public class MinioTransfer {
    public static void main(String[] args) {
        String oldEndpoint = "http://old-minio-server:9000";
        String oldAccessKey = "OLD_ACCESS_KEY";
        String oldSecretKey = "OLD_SECRET_KEY";
        String oldBucketName = "old-bucket";

        String newEndpoint = "http://new-minio-server:9000";
        String newAccessKey = "NEW_ACCESS_KEY";        String newSecretKey = "NEW_SECRET_KEY";
        String newBucketName = "new-bucket";

        try {
            // 创建旧MinIO客户端
            MinioClient oldClient = new MinioClient(oldEndpoint, oldAccessKey, oldSecretKey);

            // 创建新MinIO客户端
            MinioClient newClient = new MinioClient(newEndpoint, newAccessKey, newSecretKey);

            // 获取旧MinIO服务器上的所有对象
            Iterable<io.minio.Result<io.minio.messages.Item>> objects = oldClient.listObjects(oldBucketName);

            // 遍历并复制每个对象到新的MinIO服务器
            for (io.minio.Result<io.minio.messages.Item> result : objects) {
                io.minio.messages.Item item = result.get();
                String objectName = item.objectName();

                // 复制对象
                newClient.copyObject(oldBucketName, objectName, newBucketName, objectName);
                System.out.println("Copied object: " + objectName);
            }

            System.out.println("Transfer completed successfully.");
        } catch (MinioException | IOException | NoSuchAlgorithmException | InvalidKeyException e) {
            System.out.println("Error occurred: " + e.getMessage());
        }
    }
}