Localstack - 通过 java aws sdk 访问 SNS：NoSuchFieldError：ENDPOINT_OVERRIDDEN

Question

我正在玩一个在 docker 上运行的 localstack 实例。我尝试访问 sns 服务，但在执行“listTopics()”或“createTopic()”等方法时收到错误我还没有在 Google 上找到任何帮助，所以有人知道这里出了什么问题吗？

错误：

Caused by: java.lang.NoSuchFieldError: ENDPOINT_OVERRIDDEN
    at com.amazonaws.services.sns.AmazonSNSClient.executeListTopics(AmazonSNSClient.java:1830) ~[aws-java-sdk-sns-1.11.875.jar:na]
    at com.amazonaws.services.sns.AmazonSNSClient.listTopics(AmazonSNSClient.java:1812) ~[aws-java-sdk-sns-1.11.875.jar:na]
    at com.amazonaws.services.sns.AmazonSNSClient.listTopics(AmazonSNSClient.java:1853) ~[aws-java-sdk-sns-1.11.875.jar:na]
    at com.example.dockerspringboot.DockerSpringBootApplication.getSnsClient(DockerSpringBootApplication.java:62) ~[classes/:na]
    at com.example.dockerspringboot.DockerSpringBootApplication$$EnhancerBySpringCGLIB$$a65fee3d.CGLIB$getSnsClient$2(<generated>) ~[classes/:na]
    at com.example.dockerspringboot.DockerSpringBootApplication$$EnhancerBySpringCGLIB$$a65fee3d$$FastClassBySpringCGLIB$$99ad7dfd.invoke(<generated>) ~[classes/:na]
    at org.springframework.cglib.proxy.MethodProxy.invokeSuper(MethodProxy.java:244) ~[spring-core-5.2.9.RELEASE.jar:5.2.9.RELEASE]
    at org.springframework.context.annotation.ConfigurationClassEnhancer$BeanMethodInterceptor.intercept(ConfigurationClassEnhancer.java:331) ~[spring-context-5.2.9.RELEASE.jar:5.2.9.RELEASE]
    at com.example.dockerspringboot.DockerSpringBootApplication$$EnhancerBySpringCGLIB$$a65fee3d.getSnsClient(<generated>) ~[classes/:na]
    at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[na:na]
    at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[na:na]
    at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[na:na]
    at java.base/java.lang.reflect.Method.invoke(Method.java:566) ~[na:na]
    at org.springframework.beans.factory.support.SimpleInstantiationStrategy.instantiate(SimpleInstantiationStrategy.java:154) ~[spring-beans-5.2.9.RELEASE.jar:5.2.9.RELEASE]
    ... 98 common frames omitted

我尝试通过 java aws sdk 访问 localstack sns 服务：

<dependency>
    <groupId>com.amazonaws</groupId>
    <artifactId>aws-java-sdk-sns</artifactId>
    <version>1.11.875</version>
</dependency>

我的应用程序中抛出错误的代码如下所示：

private String serviceEndpoint = "http://localhost:4566";
private String signingRegion = "eu-west-1";

@Bean
    public AmazonSNS getSnsClient() {
        AmazonSNS sns = AmazonSNSClient.builder().withEndpointConfiguration(new AwsClientBuilder.EndpointConfiguration(serviceEndpoint, signingRegion)).withCredentials(new DefaultAWSCredentialsProviderChain()).build();

        System.out.println(sns.listTopics().toString());

        return sns;
    }

我正在使用这个 docker-compose 文件在 Docker 上运行 localstack：

version: '2.1'

services:
  localstack:
    container_name: "localstack"
    image: localstack/localstack-full
    network_mode: bridge
    ports:
      - "4566-4599:4566-4599"
      - "${PORT_WEB_UI-8080}:${PORT_WEB_UI-8080}"
    environment:
      - SERVICES=s3,sns
      - DEBUG=${DEBUG- }
      - DATA_DIR=/tmp/localstack/data
      - PORT_WEB_UI=${PORT_WEB_UI- }
      - LAMBDA_EXECUTOR=${LAMBDA_EXECUTOR- }
      - KINESIS_ERROR_PROBABILITY=${KINESIS_ERROR_PROBABILITY- }
      - DOCKER_HOST=unix:///var/run/docker.sock

    volumes:
      - "local_vol:/tmp/localstack"
      - "/var/run/docker.sock:/var/run/docker.sock"
volumes:
  local_vol:
      driver: local

通过 cmdline 创建 SNS 主题工作正常，因此服务正在运行！

/opt/code/localstack # aws --endpoint-url=http://localhost:4566 sns create-topic --name my_topic
{
    "TopicArn": "arn:aws:sns:us-east-1:000000000000:my_topic"
}
/opt/code/localstack # aws --endpoint-url=http://localhost:4566 sns list-topics
{
    "Topics": [
        {
            "TopicArn": "arn:aws:sns:us-east-1:000000000000:my_topic"
        }
    ]
}

顺便说一句：我也使用 localstock 的 S3，这个正在工作 - 这两个可能有冲突吗？

希望有人能帮助我，解决这个问题。:)

Answer 1

我在使用 AmazonRoute53Client 时也遇到过这个错误。

检查后，HandlerContextKey 类上没有 ENDPOINT_OVERRIDDEN 字段。

此类可以在 aws-java-sdk-core 库中找到。ENDPOINT_OVERRIDDEN 从 1.11.873 开始添加。

解决方案： 将 aws-java-sdk-core 更新到最新或至少 1.11.873

Github 源代码

库：版本 1.11.873 的 aws-java-sdk-core