Amazon S3中是否有重命名文件和文件夹的功能?欢迎提出相关建议。
当前回答
下面是重命名s3上文件的代码示例。由于spark o/p文件,我的文件是part-000*,然后我将其复制到相同位置的另一个文件名,并删除part-000*:
import boto3
client = boto3.client('s3')
response = client.list_objects(
Bucket='lsph',
MaxKeys=10,
Prefix='03curated/DIM_DEMOGRAPHIC/',
Delimiter='/'
)
name = response["Contents"][0]["Key"]
copy_source = {'Bucket': 'lsph', 'Key': name}
client.copy_object(Bucket='lsph', CopySource=copy_source,
Key='03curated/DIM_DEMOGRAPHIC/'+'DIM_DEMOGRAPHIC.json')
client.delete_object(Bucket='lsph', Key=name)
其他回答
下面是重命名s3上文件的代码示例。由于spark o/p文件,我的文件是part-000*,然后我将其复制到相同位置的另一个文件名,并删除part-000*:
import boto3
client = boto3.client('s3')
response = client.list_objects(
Bucket='lsph',
MaxKeys=10,
Prefix='03curated/DIM_DEMOGRAPHIC/',
Delimiter='/'
)
name = response["Contents"][0]["Key"]
copy_source = {'Bucket': 'lsph', 'Key': name}
client.copy_object(Bucket='lsph', CopySource=copy_source,
Key='03curated/DIM_DEMOGRAPHIC/'+'DIM_DEMOGRAPHIC.json')
client.delete_object(Bucket='lsph', Key=name)
我刚把它弄好了。你可以像这样使用AWS SDK:
use Aws\S3\S3Client;
$sourceBucket = '*** Your Source Bucket Name ***';
$sourceKeyname = '*** Your Source Object Key ***';
$targetBucket = '*** Your Target Bucket Name ***';
$targetKeyname = '*** Your Target Key Name ***';
// Instantiate the client.
$s3 = S3Client::factory();
// Copy an object.
$s3->copyObject(array(
'Bucket' => $targetBucket,
'Key' => $targetKeyname,
'CopySource' => "{$sourceBucket}/{$sourceKeyname}",
));
http://docs.aws.amazon.com/AmazonS3/latest/dev/CopyingObjectUsingPHP.html
我刚刚测试了这个,它是有效的:
aws s3 --recursive mv s3://<bucketname>/<folder_name_from> s3://<bucket>/<folder_name_to>
正如Naaz所回答的,直接重命名s3是不可能的。
我附上了一个代码片段,它将复制所有的内容
代码正在工作,只需添加您的aws访问密钥和秘密密钥
这是我在代码中所做的
->复制源文件夹内容(嵌套子和文件夹)并粘贴到目标文件夹
->拷贝完成后,删除源文件夹
package com.bighalf.doc.amazon;
import java.io.ByteArrayInputStream;
import java.io.InputStream;
import java.util.List;
import com.amazonaws.auth.AWSCredentials;
import com.amazonaws.auth.BasicAWSCredentials;
import com.amazonaws.services.s3.AmazonS3;
import com.amazonaws.services.s3.AmazonS3Client;
import com.amazonaws.services.s3.model.CopyObjectRequest;
import com.amazonaws.services.s3.model.ObjectMetadata;
import com.amazonaws.services.s3.model.PutObjectRequest;
import com.amazonaws.services.s3.model.S3ObjectSummary;
public class Test {
public static boolean renameAwsFolder(String bucketName,String keyName,String newName) {
boolean result = false;
try {
AmazonS3 s3client = getAmazonS3ClientObject();
List<S3ObjectSummary> fileList = s3client.listObjects(bucketName, keyName).getObjectSummaries();
//some meta data to create empty folders start
ObjectMetadata metadata = new ObjectMetadata();
metadata.setContentLength(0);
InputStream emptyContent = new ByteArrayInputStream(new byte[0]);
//some meta data to create empty folders end
//final location is the locaiton where the child folder contents of the existing folder should go
String finalLocation = keyName.substring(0,keyName.lastIndexOf('/')+1)+newName;
for (S3ObjectSummary file : fileList) {
String key = file.getKey();
//updating child folder location with the newlocation
String destinationKeyName = key.replace(keyName,finalLocation);
if(key.charAt(key.length()-1)=='/'){
//if name ends with suffix (/) means its a folders
PutObjectRequest putObjectRequest = new PutObjectRequest(bucketName, destinationKeyName, emptyContent, metadata);
s3client.putObject(putObjectRequest);
}else{
//if name doesnot ends with suffix (/) means its a file
CopyObjectRequest copyObjRequest = new CopyObjectRequest(bucketName,
file.getKey(), bucketName, destinationKeyName);
s3client.copyObject(copyObjRequest);
}
}
boolean isFodlerDeleted = deleteFolderFromAws(bucketName, keyName);
return isFodlerDeleted;
} catch (Exception e) {
e.printStackTrace();
}
return result;
}
public static boolean deleteFolderFromAws(String bucketName, String keyName) {
boolean result = false;
try {
AmazonS3 s3client = getAmazonS3ClientObject();
//deleting folder children
List<S3ObjectSummary> fileList = s3client.listObjects(bucketName, keyName).getObjectSummaries();
for (S3ObjectSummary file : fileList) {
s3client.deleteObject(bucketName, file.getKey());
}
//deleting actual passed folder
s3client.deleteObject(bucketName, keyName);
result = true;
} catch (Exception e) {
e.printStackTrace();
}
return result;
}
public static void main(String[] args) {
intializeAmazonObjects();
boolean result = renameAwsFolder(bucketName, keyName, newName);
System.out.println(result);
}
private static AWSCredentials credentials = null;
private static AmazonS3 amazonS3Client = null;
private static final String ACCESS_KEY = "";
private static final String SECRET_ACCESS_KEY = "";
private static final String bucketName = "";
private static final String keyName = "";
//renaming folder c to x from key name
private static final String newName = "";
public static void intializeAmazonObjects() {
credentials = new BasicAWSCredentials(ACCESS_KEY, SECRET_ACCESS_KEY);
amazonS3Client = new AmazonS3Client(credentials);
}
public static AmazonS3 getAmazonS3ClientObject() {
return amazonS3Client;
}
}
您可以使用AWS CLI命令来mv文件
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