Question

我正在尝试使用以下代码来运行这个简单的运动消息消费者。这是应用程序中唯一的类

由于我已更新到kinesis活页夹的最新快照版本，因此遇到了此错误

    @SpringBootApplication
    @RestController
    @EnableBinding(Sink.class)
    @EnableAutoConfiguration
    public class ProducerApplication {



      public static void main(String[] args) {
        SpringApplication.run(ProducerApplication.class, args);
      }

      @StreamListener(Sink.INPUT)
      public void listen(String message) {
        System.out.println("Message has been received"+message);
      }

    }

应用yml

server.port: 8081


spring:
  cloud:
    stream:
      bindings:
        input:
          destination: my.sink
          content-type: application/json




cloud:
  aws:
    region:
      static: us-east-1
    credentials:
      accessKey: <accessKey>
      secretKey: <secretKey>

build.gradle

     buildscript {
        ext {
            springBootVersion = '2.0.3.RELEASE'
        }
        repositories {
            mavenCentral()
            maven { url "https://repo.spring.io/snapshot" }
            maven { url "https://repo.spring.io/milestone" }
        }
        dependencies {
            classpath("org.springframework.boot:spring-boot-gradle-plugin:${springBootVersion}")
        }
    }

    apply plugin: 'java'
    apply plugin: 'eclipse'
    apply plugin: 'org.springframework.boot'
    apply plugin: 'io.spring.dependency-management'

    group = 'com.kinesis.demo'
    version = '0.0.1-SNAPSHOT'
    sourceCompatibility = 1.8

    repositories {
        mavenCentral()
        maven { url "https://repo.spring.io/snapshot" }
        maven { url "https://repo.spring.io/milestone" }
    }


    dependencies {
        compile('org.springframework.boot:spring-boot-starter')
        compile('org.springframework.boot:spring-boot-starter-web')
        compile('org.springframework.boot:spring-boot-starter-actuator')
        compile('org.springframework.cloud:spring-cloud-stream-binder-kinesis:1.0.0.BUILD-SNAPSHOT')
        testCompile('org.springframework.boot:spring-boot-starter-test')
    }

我正在获取bean初始化异常，并且在创建bean DynamoDbMetadataStore时似乎存在问题。

2018-07-10 10:53:22.629  INFO 18332 --- [esis-consumer-1] a.i.k.KinesisMessageDrivenChannelAdapter : Got an exception java.lang.IllegalStateException: The component has not been initialized: DynamoDbMetadataStore{table={SpringIntegrationMetadataStore: {AttributeDefinitions: [{AttributeName: KEY,AttributeType: S}],TableName: SpringIntegrationMetadataStore,KeySchema: [{AttributeName: KEY,KeyType: HASH}],TableStatus: ACTIVE,CreationDateTime: Wed Jun 27 10:51:53 IST 2018,ProvisionedThroughput: {NumberOfDecreasesToday: 0,ReadCapacityUnits: 1,WriteCapacityUnits: 1},TableSizeBytes: 0,ItemCount: 0,TableArn: arn:aws:dynamodb:us-east-1:1234567:table/SpringIntegrationMetadataStore,TableId: d0cf588b-e122-406b-ad82-06255dfea6d4,}}, createTableRetries=25, createTableDelay=1, readCapacity=1, writeCapacity=1, timeToLive=null}.
 Is it declared as a bean? during [ShardConsumer{shardOffset=KinesisShardOffset{iteratorType=LATEST, sequenceNumber='null', timestamp=null, stream='my.sink', shard='shardId-000000000000', reset=false}, state=NEW}] task invocation.
Process will be retried on the next iteration.

此错误在更新到最新版本的kinesis活页夹后开始。

可以请您检查是否有什么问题。

Answer 1

我刚刚解决了以下问题：https://github.com/spring-projects/spring-integration-aws/commit/fc34f814e557936d1bcb815d0879bd4f6e035675

问题在于，当DynamoDB中已经有一个表时，我们只是从afterPropertiesSet()返回而将initialized保留为false。

最新的BUILD-SNAPSHOT应该可以使用了。

由于未正确初始化bean，Spring Cloud AWS Kinesis Stream绑定程序无法启动

1 个答案: