如果您只想从AWS下载桶，请首先在您的计算机中安装AWS CLI。在终端更改目录到你想下载的文件，并运行这个命令。

aws s3 sync s3://bucket-name .

如果你也想同步本地和s3目录(如果你在本地文件夹中添加了一些文件)，运行这个命令:

aws s3 sync . s3://bucket-name

您可以使用这个AWS cli命令将整个S3桶内容下载到本地文件夹

aws s3 sync s3://your-bucket-name "Local Folder Path"

如果你看到这样的错误

fatal error: [SSL: CERTIFICATE_VERIFY_FAILED] certificate verify failed (_ssl.c:581)

——no-verify-ssl(布尔)

默认情况下，AWS CLI与AWS服务通信时使用SSL。对于每个SSL连接，AWS CLI将验证SSL证书。此选项将覆盖验证SSL证书的默认行为。 参考

使用命令——no-verify-ssl来使用这个标记

aws s3 sync s3://your-bucket-name "Local Folder Path" --no-verify-ssl

这里有一些东西可以下载所有桶，列出它们，列出它们的内容。

    //connection string
    private static void dBConnection() {
    app.setAwsCredentials(CONST.getAccessKey(), CONST.getSecretKey());
    conn = new AmazonS3Client(app.getAwsCredentials());
    app.setListOfBuckets(conn.listBuckets());
    System.out.println(CONST.getConnectionSuccessfullMessage());
    }

    private static void downloadBucket() {

    do {
        for (S3ObjectSummary objectSummary : app.getS3Object().getObjectSummaries()) {
            app.setBucketKey(objectSummary.getKey());
            app.setBucketName(objectSummary.getBucketName());
            if(objectSummary.getKey().contains(CONST.getDesiredKey())){
                //DOWNLOAD
                try 
                {
                    s3Client = new AmazonS3Client(new ProfileCredentialsProvider());
                    s3Client.getObject(
                            new GetObjectRequest(app.getBucketName(),app.getBucketKey()),
                            new File(app.getDownloadedBucket())
                            );
                } catch (IOException e) {
                    e.printStackTrace();
                }

                do
                {
                     if(app.getBackUpExist() == true){
                        System.out.println("Converting back up file");
                        app.setCurrentPacsId(objectSummary.getKey());
                        passIn = app.getDataBaseFile();
                        CONVERT= new DataConversion(passIn);
                        System.out.println(CONST.getFileDownloadedMessage());
                    }
                }
                while(app.getObjectExist()==true);

                if(app.getObjectExist()== false)
                {
                    app.setNoObjectFound(true);
                }
            }
        }
        app.setS3Object(conn.listNextBatchOfObjects(app.getS3Object()));
    } 
    while (app.getS3Object().isTruncated());
}

/---------------------------- 扩展方法 -------------------------------------/

//Unzip bucket after download 
public static void unzipBucket() throws IOException {
    unzip = new UnZipBuckets();
    unzip.unZipIt(app.getDownloadedBucket());
    System.out.println(CONST.getFileUnzippedMessage());
}

//list all S3 buckets
public static void listAllBuckets(){
    for (Bucket bucket : app.getListOfBuckets()) {
        String bucketName = bucket.getName();
        System.out.println(bucketName + "\t" + StringUtils.fromDate(bucket.getCreationDate()));
    }
}

//Get the contents from the auto back up bucket
public static void listAllBucketContents(){     
    do {
        for (S3ObjectSummary objectSummary : app.getS3Object().getObjectSummaries()) {
            if(objectSummary.getKey().contains(CONST.getDesiredKey())){
                System.out.println(objectSummary.getKey() + "\t" + objectSummary.getSize() + "\t" + StringUtils.fromDate(objectSummary.getLastModified()));
                app.setBackUpCount(app.getBackUpCount() + 1);   
            }
        }
        app.setS3Object(conn.listNextBatchOfObjects(app.getS3Object()));
    } 
    while (app.getS3Object().isTruncated());
    System.out.println("There are a total of : " + app.getBackUpCount() + " buckets.");
}

}

如果您使用带有S3Fox的Firefox，它确实允许您选择所有文件(shift-选择第一个和最后一个)，然后右键单击并下载所有文件。

我已经处理了500多个文件，没有任何问题。

您有许多选项可以做到这一点，但最好的是使用AWS CLI。

下面是一篇简介:

Download and install AWS CLI in your machine: Install the AWS CLI using the MSI Installer (Windows). Install the AWS CLI using the Bundled Installer for Linux, OS X, or Unix. Configure AWS CLI: Make sure you input valid access and secret keys, which you received when you created the account. Sync the S3 bucket using: aws s3 sync s3://yourbucket /local/path In the above command, replace the following fields: yourbucket >> your S3 bucket that you want to download. /local/path >> path in your local system where you want to download all the files.

如果您使用Visual Studio，请下载“AWS Toolkit for Visual Studio”。

安装完成后，进入Visual Studio - AWS Explorer - S3 -您的存储桶-双击

在窗口中，您将能够选择所有文件。右键单击并下载文件。