Java AmazonS3Client(credentials) 已弃用
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AmazonS3Client(credentials) is deprecated
提问by Asif Ali
I'm trying to read the files available on Amazon S3, as the question explains the problem. I couldn't find an alternative call for the deprecated constructor.
我正在尝试阅读 Amazon S3 上可用的文件，因为问题解释了问题。我找不到不推荐使用的构造函数的替代调用。
Here's the code:
这是代码：
private String AccessKeyID = "xxxxxxxxxxxxxxxxxxxx";
private String SecretAccessKey = "xxxxxxxxxxxxxxxxxxxxxxxxxxxxx";
private static String bucketName = "documentcontainer";
private static String keyName = "test";
//private static String uploadFileName = "/PATH TO FILE WHICH WANT TO UPLOAD/abc.txt";
AWSCredentials credentials = new BasicAWSCredentials(AccessKeyID, SecretAccessKey);
void downloadfile() throws IOException
{
// Problem lies here - AmazonS3Client is deprecated
AmazonS3 s3client = new AmazonS3Client(credentials);
try {
System.out.println("Downloading an object...");
S3Object s3object = s3client.getObject(new GetObjectRequest(
bucketName, keyName));
System.out.println("Content-Type: " +
s3object.getObjectMetadata().getContentType());
InputStream input = s3object.getObjectContent();
BufferedReader reader = new BufferedReader(new InputStreamReader(input));
while (true) {
String line = reader.readLine();
if (line == null) break;
System.out.println(" " + line);
}
System.out.println();
} catch (AmazonServiceException ase) {
//do something
} catch (AmazonClientException ace) {
// do something
}
}
Any help? If more explanation is needed please mention it. I have checked on the sample code provided in .zip file of SDK, and it's the same.
有什么帮助吗？如果需要更多解释，请提及。我检查了SDK .zip 文件中提供的示例代码，它是相同的。
采纳答案by franklinsijo
You can either use AmazonS3ClientBuilderor AwsClientBuilderas alternatives.
您可以使用AmazonS3ClientBuilder或 AwsClientBuilder作为替代方案。
For S3, simplest would be with AmazonS3ClientBuilder,
对于 S3，最简单的是使用 AmazonS3ClientBuilder，
BasicAWSCredentials creds = new BasicAWSCredentials("access_key", "secret_key");
AmazonS3 s3Client = AmazonS3ClientBuilder.standard().withCredentials(new AWSStaticCredentialsProvider(creds)).build();
回答by Sid
Use the code listed below to create an S3 client without credentials:
使用下面列出的代码创建一个没有凭据的 S3 客户端：
AmazonS3 s3Client = AmazonS3ClientBuilder.standard().build();
An usage example would be a lambda function calling S3.
一个使用示例是调用 S3 的 lambda 函数。
回答by Sach
You can create S3 default client as follows(with aws-java-sdk-s3-1.11.232):
您可以按如下方式创建 S3 默认客户端（使用 aws-java-sdk-s3-1.11.232）：
AmazonS3ClientBuilder.defaultClient();
回答by Abhay Pratap
You need to pass the region information through the
您需要通过区域信息传递
com.amazonaws.regions.Region object.
Use AmazonS3Client(credentials, Region.getRegion(Regions.REPLACE_WITH_YOUR_REGION))
回答by Siarhei
Deprecated with only creentials in constructor, you can use something like this:
在构造函数中仅使用凭据已弃用，您可以使用以下内容：
val awsConfiguration = AWSConfiguration(context)
val awsCreds = CognitoCachingCredentialsProvider(context, awsConfiguration)
val s3Client = AmazonS3Client(awsCreds, Region.getRegion(Regions.EU_CENTRAL_1))
回答by Santiago Battaglino
implementation 'com.amazonaws:aws-android-sdk-s3:2.16.12'
val key = "XXX"
val secret = "XXX"
val credentials = BasicAWSCredentials(key, secret)
val s3 = AmazonS3Client(
credentials, com.amazonaws.regions.Region.getRegion(
Regions.US_EAST_2
)
)
val expires = Date(Date().time + 1000 * 60 * 60)
val keyFile = "13/thumbnail_800x600_13_photo.jpeg"
val generatePresignedUrlRequest = GeneratePresignedUrlRequest(
"bucket_name",
keyFile
)
generatePresignedUrlRequest.expiration = expires
val url: URL = s3.generatePresignedUrl(generatePresignedUrlRequest)
GlideApp.with(this)
.load(url.toString())
.apply(RequestOptions.centerCropTransform())
.into(image)
