未找到AWS DynamoDB请求的资源

Question

我正在尝试将我的应用程序连接到DynamoDB.我已按照亚马逊推荐的方式设置了一切.但我仍然一遍又一遍地得到同样的错误:

   7-21 11:02:29.856  10027-10081/com.amazonaws.cognito.sync.demo E/AndroidRuntime? FATAL EXCEPTION: AsyncTask #1
    Process: com.amazonaws.cognito.sync.demo, PID: 10027
    java.lang.RuntimeException: An error occured while executing doInBackground()
            at android.os.AsyncTask$3.done(AsyncTask.java:304)
            at java.util.concurrent.FutureTask.finishCompletion(FutureTask.java:355)
            at java.util.concurrent.FutureTask.setException(FutureTask.java:222)
            at java.util.concurrent.FutureTask.run(FutureTask.java:242)
            at android.os.AsyncTask$SerialExecutor$1.run(AsyncTask.java:231)
            at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1112)
            at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:587)
            at java.lang.Thread.run(Thread.java:818)
     Caused by: com.amazonaws.services.dynamodbv2.model.ResourceNotFoundException: Requested resource not found (Service: AmazonDynamoDBv2; Status Code: 400; Error Code: ResourceNotFoundException; Request ID: GIONOKT7E3AMTC4PO19CPLON93VV4KQNSO5AEMVJF66Q9ASUAAJG)
            at com.amazonaws.http.AmazonHttpClient.handleErrorResponse(AmazonHttpClient.java:710)
            at com.amazonaws.http.AmazonHttpClient.executeHelper(AmazonHttpClient.java:385)
            at com.amazonaws.http.AmazonHttpClient.execute(AmazonHttpClient.java:196)
            at com.amazonaws.services.dynamodbv2.AmazonDynamoDBClient.invoke(AmazonDynamoDBClient.java:2930)
            at com.amazonaws.services.dynamodbv2.AmazonDynamoDBClient.updateItem(AmazonDynamoDBClient.java:930)
            at com.amazonaws.mobileconnectors.dynamodbv2.dynamodbmapper.DynamoDBMapper$SaveObjectHandler.doUpdateItem(DynamoDBMapper.java:1173)
            at com.amazonaws.mobileconnectors.dynamodbv2.dynamodbmapper.DynamoDBMapper$2.executeLowLevelRequest(DynamoDBMapper.java:873)
            at com.amazonaws.mobileconnectors.dynamodbv2.dynamodbmapper.DynamoDBMapper$SaveObjectHandler.execute(DynamoDBMapper.java:1056)
            at com.amazonaws.mobileconnectors.dynamodbv2.dynamodbmapper.DynamoDBMapper.save(DynamoDBMapper.java:904)
            at com.amazonaws.mobileconnectors.dynamodbv2.dynamodbmapper.DynamoDBMapper.save(DynamoDBMapper.java:688)
            at com.amazonaws.cognito.sync.Utils.FriendsSyncManager.initalize_credentialprovider(FriendsSyncManager.java:43)
            at com.amazonaws.cognito.sync.ValU.FriendListActivity$SyncFriends.doInBackground(FriendListActivity.java:168)
            at com.amazonaws.cognito.sync.ValU.FriendListActivity$SyncFriends.doInBackground(FriendListActivity.java:160)
            at android.os.AsyncTask$2.call(AsyncTask.java:292)

            可能是什么解决方案？   

Answer 1

好吧,你似乎需要添加:

ddbClient.setRegion(Region.getRegion(Regions.EU_WEST_1));  
// Add correct Region. In my case its EU_WEST_1

在以下行之后:

AmazonDynamoDBClient ddbClient = new AmazonDynamoDBClient(credentialsProvider);

现在它有效.该表已成功创建.祝你有愉快的一天,谢谢!

Answer 2

似乎您尝试连接的表不存在.再次验证代码中的表名称是否为您创建的表的名称.

请注意,表名具有敏感性.