can not mapping entity when using AWS DynamoDB - amazon-web-services

Question

I am begin with dynamoDB. I using annotion mapping enity follow :
#DynamoDBTable(tableName = "ProductCatalogz")
public static class Book {
private int id;+
private String title;+
private String ISBN;+
private Set<String> bookAuthors;+
// private DimensionType dimensionType;
#DynamoDBHashKey(attributeName = "Id")
public int getId() {
return id;
}
public void setId(int id) {
this.id = id;
}
#DynamoDBAttribute(attributeName = "Title")
public String getTitle() {
return title;
}
public void setTitle(String title) {
this.title = title;
}
#DynamoDBAttribute(attributeName = "ISBN")
public String getISBN() {
return ISBN;
}
public void setISBN(String ISBN) {
this.ISBN = ISBN;
}
}
and
public static void main(String[] args) throws IOException {
AWSCredentials credentials = new PropertiesCredentials(
Tester2.class.getResourceAsStream("/AwsCredentials.properties"));
client = new AmazonDynamoDBClient(credentials);
Region usWest2 = Region.getRegion(Regions.US_EAST_1);
client.setRegion(usWest2);
Book book = new Book();
book.setId(1);
book.setTitle("Book 502");
book.setISBN("5555555555555");
book.setBookAuthors(new HashSet<String>(Arrays.asList("Author1",
"Author2")));
// book.setDimensions(dimType);
DynamoDBMapper mapper = new DynamoDBMapper(client);
mapper.save(book);
}
But when I run this error :
Exception in thread "main" ResourceNotFoundException: Status Code: 400, AWS Service: AmazonDynamoDBv2, AWS Request ID: NSG3K0BQOBCPNQONE8, AWS Error Code: ResourceNotFoundException, AWS Error Message: Requested resource not found
at com.amazonaws.http.AmazonHttpClient.handleErrorResponse(AmazonHttpClient.java:644)
at com.amazonaws.http.AmazonHttpClient.executeHelper(AmazonHttpClient.java:338)
at com.amazonaws.http.AmazonHttpClient.execute(AmazonHttpClient.java:190)
at com.amazonaws.services.dynamodbv2.AmazonDynamoDBClient.invoke(AmazonDynamoDBClient.java:1245)
at com.amazonaws.services.dynamodbv2.AmazonDynamoDBClient.updateItem(AmazonDynamoDBClient.java:1026)
at com.amazonaws.services.dynamodbv2.datamodeling.DynamoDBMapper.save(DynamoDBMapper.java:636)
at com.amazonaws.services.dynamodbv2.datamodeling.DynamoDBMapper.save(DynamoDBMapper.java:483)
at test.Tester2.main(Tester2.java:47)
please help me

Answer 1

The message Requested resource not found means that Dynamo DB table is not found. You should create it first through AWS console, API, or CLI.

Answer 2

Ensure that you have set the endpoint on the client
BasicAWSCredentials b = new BasicAWSCredentials("Access Key ID","Secret Access Key");
AmazonDynamoDBClient client = new AmazonDynamoDBClient(b);
client.setEndpoint("dynamodb.ap-northeast-1.amazonaws.com");
Refer http://docs.aws.amazon.com/general/latest/gr/rande.html#ddb_region for the complete list of End Points for DynamoDB