[英]AWS S3 Java Access Denied Service: Amazon S3; Status Code: 403; Error Code: AccessDenied;
[英]Service: Amazon S3; Status Code: 404; Error Code: NoSuchBucket; Trouble getting a file from IBM Cloud Object Storage
我正在嘗試從 IBM 雲對象存儲中的存儲桶中獲取文件。 為此,首先我嘗試讀取存儲桶中的所有可用文件。
private static List<String> listBuckets(AmazonS3 cosClient) {
final List<Bucket> bucketList = cosClient.listBuckets();
List<String> bucketNames = new ArrayList<String>();
for (final Bucket bucket : bucketList) {
bucketNames.add(bucket.getName());
}
return bucketNames;
}
public InputStream getCOSFile(AmazonS3 cosClient, String bucketName, String objectName){
List<String> bucketNames = listBuckets(cosClient);
if (bucketNames.contains(bucketName)){
LOGGER.info(bucketName+" exists");
getBucketContentsV2(cosClient, bucketName, 2);
}
在這里,我從 if 塊中獲取消息 bucketName 存在。 此外,存儲桶確實存在於我的雲帳戶中。 但是,getBucketContentsV2 給了我這個錯誤消息:“指定的存儲桶不存在。(服務:Amazon S3;狀態代碼:404;錯誤代碼:NoSuchBucket;請求 ID:xxxxx)
這是 getBucketContentsV2 方法,幾乎與 IBM 雲文檔教程中的一樣。
public static void getBucketContentsV2(AmazonS3 cosClient, String bucketName, int maxKeys) {
System.out.printf("Retrieving bucket contents (V2) from: %s\n", bucketName);
boolean moreResults = true;
String nextToken = "";
while (moreResults) {
ListObjectsV2Request request = new ListObjectsV2Request()
.withBucketName(bucketName)
.withMaxKeys(maxKeys)
.withContinuationToken(nextToken);
ListObjectsV2Result result = cosClient.listObjectsV2(request);
for(S3ObjectSummary objectSummary : result.getObjectSummaries()) {
System.out.printf("Item: %s (%s bytes)\n", objectSummary.getKey(), objectSummary.getSize());
}
if (result.isTruncated()) {
nextToken = result.getNextContinuationToken();
System.out.println("...More results in next batch!\n");
}
else {
nextToken = "";
moreResults = false;
}
}
System.out.println("...No more results!");
}
我還嘗試在文檔中使用 V1 代碼檢索存儲桶中的所有文件,並得到相同的 NoSuchBucket 錯誤。
這是該方法的實現:
public static void listBuckets(AmazonS3 cosClient, String bucketName) {
System.out.printf("Retrieving bucket contents from: %s\n", bucketName);
ObjectListing objectListing = cosClient.listObjects(new ListObjectsRequest().withBucketName(bucketName));
for (S3ObjectSummary objectSummary : objectListing.getObjectSummaries()) {
System.out.printf("Item: %s (%s bytes)\n", objectSummary.getKey(), objectSummary.getSize());
}
System.out.println();
}
所以我嘗試了這段代碼來復制錯誤。 我能夠列出存儲桶中的對象。 我的第一個客人是配置錯誤。
String bucketName = "<BUCKET_NAME>"; // eg my-unique-bucket-name
String newBucketName = "<NEW_BUCKET_NAME>"; // eg my-other-unique-bucket-name
String apiKey = "<API_KEY>"; // eg "W00YiRnLW4k3fTjMB-oiB-2ySfTrFBIQQWanc--P3byk"
String serviceInstanceId = "<SERVICE_INSTANCE_ID"; // eg "crn:v1:bluemix:public:cloud-object-storage:global:a/3bf0d9003abfb5d29761c3e97696b71c:d6f04d83-6c4f-4a62-a165-696756d63903::"
String endpointUrl = "https://s3.us-south.cloud-object-storage.appdomain.cloud"; // this could be any service endpoint
可能endpointUrl
配置錯誤。 獲取端點時,請執行以下步驟:
我的是這樣的: s3.eu-de.cloud-object-storage.appdomain.cloud
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