AWS SDK 2 代入角色

Question

@Bean
public DynamoDbClient amazonDynamoDB() {
    final AssumeRoleRequest assumeRoleRequest = AssumeRoleRequest.builder().roleSessionName(UUID.randomUUID().toString()).roleArn("roleArn").build();
    final StsAssumeRoleCredentialsProvider  stsAssumeRoleCredentialsProvider = StsAssumeRoleCredentialsProvider.builder().refreshRequest(assumeRoleRequest).build();
    return DynamoDbClient.builder().credentialsProvider(stsAssumeRoleCredentialsProvider).region(Region.EU_WEST_1)
            .build();
}

出错

引起：org.springframework.beans.BeanInstantiationException：无法实例化[software.amazon.awssdk.services.dynamodb.DynamoDbClient]：工厂方法'amazonDynamoDB'抛出异常； 嵌套异常为 java.lang.NullPointerException：STS 客户端不得为 null。 at spring.beans@5.2.7.RELEASE/org.springframework.beans.factory.support.SimpleInstantiationStrategy.instantiate(SimpleInstantiationStrategy.java:185) at spring.beans@5.2.7.RELEASE/org.springframework.beans.factory. support.ConstructorResolver.instantiate(ConstructorResolver.java:650)...省略了58个常见的帧原因：java.lang.NullPointerException：STS客户端不能是19DFF7A625ECC29

Answer 1

在假设角色请求中需要设置 sts 客户端并且它有效

@Bean
@Primary
public DynamoDbClient amazonDynamoDB() {
    final AssumeRoleRequest assumeRoleRequest = AssumeRoleRequest.builder().roleSessionName(UUID.randomUUID().toString()).roleArn("roleArn").build();
    final StsClient stsClient = StsClient.builder().region(Region.EU_WEST_1).build();
    final StsAssumeRoleCredentialsProvider  stsAssumeRoleCredentialsProvider = StsAssumeRoleCredentialsProvider.builder().stsClient(stsClient).refreshRequest(assumeRoleRequest).build();
    return DynamoDbClient.builder().credentialsProvider(stsAssumeRoleCredentialsProvider).region(Region.EU_WEST_1)
            .build();
}