如何重命名 Amazon S3 存储桶中的文件？ [复制]

Posted 2023-04-14

【中文标题】如何重命名 Amazon S3 存储桶中的文件？ [复制]

【英文标题】：How to rename a file in Amazon S3 Bucket? [duplicate]

【发布时间】：2014-06-15 14:21:45

【问题描述】：

我正在尝试重命名 S3 存储桶中的文件。这是一个代码sn-p

    S3Object s3Obj  = getS3Client().getObject(new GetObjectRequest(getBucketName(), fileName));  
//Error in Above Line itself            
    getS3Client().putObject(getBucketName(), newFileName, s3Obj.getObjectContent(), s3Obj.getObjectMetadata());

private AmazonS3 getS3Client()
        AWSCredentials myCredentials = new BasicAWSCredentials(AccessKey,SecretKey);
        AmazonS3 s3client = new AmazonS3Client(myCredentials);
        return s3client;

所以，我收到了这个错误，

DEBUG [main] request.handleErrorResponse(748) |收到错误响应：com.amazonaws.services.s3.model.AmazonS3Exception：状态代码：403，AWS 服务：null，AWS 请求 ID：AD2F31F1133A650E，AWS 错误代码：AccessDenied。

我无法获取 s3object 本身。我将如何获得 S3 对象并重命名它的任何建议或想法。 感谢您的帮助。

【问题讨论】：

谢谢。我改为getS3Client().copyObject(getBucketName(), oldPhotoName, getBucketName(), "vignesh"); 但现在我也遇到了同样的错误。 Status Code: 403, AWS Service: Amazon S3, AWS Request ID: 874B8E8905B026CC, AWS Error Code: AccessDenied, AWS Error Message: Access Denied你能帮忙吗。

这能回答你的问题吗？ How to rename files and folder in Amazon S3?

【参考方案1】：

直接重命名S3对象is not possible

通过复制对象并删除原始对象来重命名对象

您可以使用例如复制和删除

CopyObjectRequest copyObjRequest = new CopyObjectRequest(bucketName, 
           keyName, bucketName, destinationKeyName);
s3client.copyObject(copyObjRequest);
s3client.deleteObject(new DeleteObjectRequest(bucketName, keyName));

【讨论】：

以上代码只会复制文件，不会复制子文件夹。

【参考方案2】：

正如High6回答的那样，直接重命名s3是不可能的，但他的代码不会复制所有内容

我附上了一个代码sn-p，它将复制所有内容

代码正在运行，只需添加您的 aws 访问密钥和密钥

这是我在代码中所做的

-> 复制源文件夹内容（嵌套的子文件夹和文件夹）并粘贴到目标文件夹中

->复制完成后，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;