AWS开发工具包2扮演角色

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();
}

获取错误

原因：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客户端不能为null。在 spring.beans@5.2.7.RELEASE/org.springframework.beans.factory.support.SimpleInstantiationStrategy.instantiate（SimpleInstantiationStrategy.java:185） 在 spring.beans@5.2.7.RELEASE/org.springframework.beans.factory.support.ConstructorResolver.instantiate（ConstructorResolver.java:650） ...省略了58个共同的框架 java.lang.NullPointerException：STS客户端不能为null。

Answer 1

假设角色请求需要设置sts客户端并且它起作用了

@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();
}