amazon web services - DynamoDBLocal在凭据上失败

Question

DynamoDBLocal拒绝我的凭据，尽管文档指出有效的凭据是不必要的:

用于DynamoDB的AWS sdk要求您的应用程序配置指定访问键值和AWS区域值…为了在本地运行，这些不必是有效的AWS值。

在本例中，我将我的凭据~/.aws/credentials设置为:

[default] 
aws_access_key_id = BogusAwsAccessKeyId
aws_secret_access_key = BogusAwsSecretAccessKey

运行DynamoDBLocal:

java -Djava.library.path=./DynamoDBLoc_lib -jar DynamoDBLocal.jar 

通过点击http://localhost:8000/shell/

检查它是否正常工作

然后运行我的测试Java应用程序:

    DefaultAWSCredentialsProviderChain credentialProvider = new DefaultAWSCredentialsProviderChain();
    AWSCredentials awsCredentials = credentialProvider.getCredentials();
    log.info("creds "{}", "{}"", awsCredentials.getAWSAccessKeyId(), awsCredentials.getAWSSecretKey());
    AmazonDynamoDBClient client = new AmazonDynamoDBClient(credentialProvider);
    client.withEndpoint("http://localhost:8000");
    client.withRegion(Regions.US_WEST_2);
    dynamoDB = new DynamoDB(client);
    try {
        TableCollection<ListTablesResult> tables = dynamoDB.listTables();
        while (tables.iterator().hasNext()) {   // <-- exception thrown here
            log.info(tables.iterator().next().getTableName());
        }
    } catch (Exception e) {
        log.error("", e);
  }

，输出如下:

creds "BogusAwsAccessKeyId"， "BogusAwsSecretAccessKey"amazonserviceexception:请求中包含的安全令牌无效。(服务:AmazonDynamoDBv2;状态码:400;错误码:UnrecognizedClientException

关于为什么它与凭证的有效性有关，有什么想法吗?

Answer 1

在您的代码中，您在调用setEndpoint()之后调用withRegion()。对withRegion()的调用将端点设置为DynamoDB的us-west-2端点，这就是身份验证失败的原因(因为它实际上是前往DynamoDB的us-west-2区域)。删除withRegion()行