在Java中,可以使用AWS SDK for Java来操作S3对象列表,实现将对象从一个文件夹移动或复制到另一个文件夹的功能。以下是一个示例代码:
import software.amazon.awssdk.auth.credentials.DefaultCredentialsProvider;
import software.amazon.awssdk.regions.Region;
import software.amazon.awssdk.services.s3.S3Client;
import software.amazon.awssdk.services.s3.model.CopyObjectRequest;
import software.amazon.awssdk.services.s3.model.CopyObjectResponse;
import software.amazon.awssdk.services.s3.model.ListObjectsV2Request;
import software.amazon.awssdk.services.s3.model.ListObjectsV2Response;
import software.amazon.awssdk.services.s3.model.S3Object;
import java.util.List;
public class S3ObjectMoveCopyExample {
public static void main(String[] args) {
String sourceBucket = "your-source-bucket";
String destinationBucket = "your-destination-bucket";
String sourceFolder = "source-folder/";
String destinationFolder = "destination-folder/";
// 创建S3客户端
S3Client s3Client = S3Client.builder()
.region(Region.US_EAST_1) // 设置合适的区域
.credentialsProvider(DefaultCredentialsProvider.create())
.build();
// 列出源文件夹下的所有对象
ListObjectsV2Request listRequest = ListObjectsV2Request.builder()
.bucket(sourceBucket)
.prefix(sourceFolder)
.build();
ListObjectsV2Response listResponse = s3Client.listObjectsV2(listRequest);
List<S3Object> objects = listResponse.contents();
// 遍历对象列表,逐个移动或复制到目标文件夹
for (S3Object object : objects) {
String key = object.key();
String newKey = key.replace(sourceFolder, destinationFolder);
// 移动对象
CopyObjectRequest copyRequest = CopyObjectRequest.builder()
.copySource(sourceBucket + "/" + key)
.destinationBucket(destinationBucket)
.destinationKey(newKey)
.build();
CopyObjectResponse copyResponse = s3Client.copyObject(copyRequest);
// 如果需要删除源文件夹下的对象,可以添加以下代码
// DeleteObjectRequest deleteRequest = DeleteObjectRequest.builder()
// .bucket(sourceBucket)
// .key(key)
// .build();
// s3Client.deleteObject(deleteRequest);
}
System.out.println("移动/复制完成");
}
}
请注意,上述示例代码中的your-source-bucket
、your-destination-bucket
、source-folder/
和destination-folder/
需要替换为实际的桶名和文件夹路径。此外,还需要根据实际情况设置适当的区域。
推荐的腾讯云相关产品是腾讯云对象存储(COS),它提供了类似于S3的对象存储服务。您可以参考腾讯云COS的文档来了解更多信息:腾讯云对象存储(COS)。
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