Amazon dynamodb 无法连接到本地dynamodb数据库

我的应用程序需要访问dynamo db表，为了简化我们的开发，我创建了一个本地spring配置文件来使用本地dynamo db实例

为了开始工作，我从这里下载了本地dynamo db的最新版本，解压缩包并使用以下命令启动dynamo db：

$ java -Djava.library.path=./DynamoDBLocal_lib -jar DynamoDBLocal.jar -sharedDb -dbPath /c/dev/DynamoDb/

Initializing DynamoDB Local with the following configuration:
Port:   8000
InMemory:       false
DbPath: C:/dev/DynamoDb/
SharedDb:       true
shouldDelayTransientStatuses:   false
CorsParams:     *

尝试从另一个命令提示符窗口重新启动将失败，因为端口8000已在使用中。 这让我觉得一切似乎都开始得很好

现在，作为第二步，我在配置类中创建了一个dynamo db bean：

@Bean
@Profile("devlocal")
public AmazonDynamoDB localAmazonDynamoDB() {
        return AmazonDynamoDBClientBuilder.standard()
            .withEndpointConfiguration(
                new AwsClientBuilder.EndpointConfiguration("http://localhost:8000/", "NoRegion"))
            .withCredentials(
                new AWSStaticCredentialsProvider(new BasicAWSCredentials("FakeAmazonAWSAccessKey", "FakeamazonAWSSecretKey")))
            .build();
}

这似乎是相当基本的设置。但是，当启动我的应用程序时，我在日志中遇到此异常，并且应用程序无法启动：

Caused by: java.lang.NoSuchMethodError: com.fasterxml.jackson.databind.JavaType.isReferenceType()Z
at com.fasterxml.jackson.databind.deser.DeserializerCache._createDeserializer2(DeserializerCache.java:397) ~[jackson-databind-2.8.4.jar:2.8.4]
at com.fasterxml.jackson.databind.deser.DeserializerCache._createDeserializer(DeserializerCache.java:349) ~[jackson-databind-2.8.4.jar:2.8.4]
at com.fasterxml.jackson.databind.deser.DeserializerCache._createAndCache2(DeserializerCache.java:264) ~[jackson-databind-2.8.4.jar:2.8.4]
at com.fasterxml.jackson.databind.deser.DeserializerCache._createAndCacheValueDeserializer(DeserializerCache.java:244) ~[jackson-databind-2.8.4.jar:2.8.4]
at com.fasterxml.jackson.databind.deser.DeserializerCache.findValueDeserializer(DeserializerCache.java:142) ~[jackson-databind-2.8.4.jar:2.8.4]
at com.fasterxml.jackson.databind.DeserializationContext.findRootValueDeserializer(DeserializationContext.java:476) ~[jackson-databind-2.8.4.jar:2.8.4]
at com.fasterxml.jackson.databind.ObjectMapper._findRootDeserializer(ObjectMapper.java:3899) ~[jackson-databind-2.8.4.jar:2.8.4]
at com.fasterxml.jackson.databind.ObjectMapper._readMapAndClose(ObjectMapper.java:3794) ~[jackson-databind-2.8.4.jar:2.8.4]
at com.fasterxml.jackson.databind.ObjectMapper.readValue(ObjectMapper.java:2797) ~[jackson-databind-2.8.4.jar:2.8.4]
at com.amazonaws.internal.config.InternalConfig.loadfrom(InternalConfig.java:250) ~[aws-java-sdk-core-1.11.662.jar:na]
at com.amazonaws.internal.config.InternalConfig.load(InternalConfig.java:263) ~[aws-java-sdk-core-1.11.662.jar:na]
at com.amazonaws.internal.config.InternalConfig$Factory.<clinit>(InternalConfig.java:336) ~[aws-java-sdk-core-1.11.662.jar:na]
at com.amazonaws.util.VersionInfoUtils.userAgent(VersionInfoUtils.java:142) ~[aws-java-sdk-core-1.11.662.jar:na]
at com.amazonaws.util.VersionInfoUtils.initializeUserAgent(VersionInfoUtils.java:137) ~[aws-java-sdk-core-1.11.662.jar:na]
at com.amazonaws.util.VersionInfoUtils.getUserAgent(VersionInfoUtils.java:100) ~[aws-java-sdk-core-1.11.662.jar:na]
at com.amazonaws.ClientConfiguration.<clinit>(ClientConfiguration.java:78) ~[aws-java-sdk-core-1.11.662.jar:na]
at com.amazonaws.ClientConfigurationFactory.getDefaultConfig(ClientConfigurationFactory.java:46) ~[aws-java-sdk-core-1.11.662.jar:na]
at com.amazonaws.services.dynamodbv2.AmazonDynamoDBClientConfigurationFactory.getDefaultConfig(AmazonDynamoDBClientConfigurationFactory.java:31) ~[aws-java-sdk-dynamodb-1.11.662.jar:na]
at com.amazonaws.ClientConfigurationFactory.getConfig(ClientConfigurationFactory.java:36) ~[aws-java-sdk-core-1.11.662.jar:na]
at com.amazonaws.client.builder.AwsClientBuilder.resolveClientConfiguration(AwsClientBuilder.java:169) ~[aws-java-sdk-core-1.11.662.jar:na]
at com.amazonaws.client.builder.AwsClientBuilder.access$000(AwsClientBuilder.java:54) ~[aws-java-sdk-core-1.11.662.jar:na]
at com.amazonaws.client.builder.AwsClientBuilder$SyncBuilderParams.<init>(AwsClientBuilder.java:505) ~[aws-java-sdk-core-1.11.662.jar:na]
at com.amazonaws.client.builder.AwsClientBuilder.getSyncClientParams(AwsClientBuilder.java:441) ~[aws-java-sdk-core-1.11.662.jar:na]
at com.amazonaws.client.builder.AwsSyncClientBuilder.build(AwsSyncClientBuilder.java:46) ~[aws-java-sdk-core-1.11.662.jar:na]
at com.my.company.my.app.webservice.config.DynamoConfig.localAmazonDynamoDB(DynamoConfig.java:55) ~[classes/:na]

原因：java.lang.NoSuchMethodError:com.fasterxml.jackson.databind.JavaType.isReferenceType（）Z
在com.fasterxml.jackson.databind.deser.DeserializerCache.\u createDeserializer2（DeserializerCache.java:397）~[jackson-databind-2.8.4.jar:2.8.4]
在com.fasterxml.jackson.databind.deser.DeserializerCache.\u createDeserializer（DeserializerCache.java:349）~[jackson-databind-2.8.4.jar:2.8.4]
在com.fasterxml.jackson.databind.deser.DeserializerCache.\u createAndCache2（DeserializerCache.java:264）~[jackson-databind-2.8.4.jar:2.8.4]
在com.fasterxml.jackson.databind.deser.DeserializerCache.\u createAndCacheValueDeserializer（DeserializerCache.java:244）~[jackson-databind-2.8.4.jar:2.8.4]
在com.fasterxml.jackson.databind.deser.DeserializerCache.findValueDeserializer（DeserializerCache.java:142）~[jackson-databind-2.8.4.jar:2.8.4]
在com.fasterxml.jackson.databind.DeserializationContext.findRootValueDeserializer（DeserializationContext.java:476）~[jackson-databind-2.8.4.jar:2.8.4]
在com.fasterxml.jackson.databind.ObjectMapper.\u findRootDeserializer（ObjectMapper.java:3899）~[jackson-databind-2.8.4.jar:2.8.4]
在com.fasterxml.jackson.databind.ObjectMapper.\u readMapAndClose（ObjectMapper.java:3794）~[jackson-databind-2.8.4.jar:2.8.4]
在com.fasterxml.jackson.databind.ObjectMapper.readValue（ObjectMapper.java:2797）~[jackson-databind-2.8.4.jar:2.8.4]
在com.amazonaws.internal.config.InternalConfig.loadfrom（InternalConfig.java:250）~[aws-java-sdk-core-1.11.662.jar:na]
在com.amazonaws.internal.config.InternalConfig.load（InternalConfig.java:263）~[aws-java-sdk-core-1.11.662.jar:na]
在com.amazonaws.internal.config.InternalConfig$Factory.（InternalConfig.java:336）~[aws-java-sdk-core-1.11.662.jar:na]
在com.amazonaws.util.versioninfutils.userAgent（versioninfutils.java:142）~[aws-java-sdk-core-1.11.662.jar:na]
在com.amazonaws.util.VersionInfoUtils.initializeUserAgent（VersionInfoUtils.java:137）~[aws-java-sdk-core-1.11.662.jar:na]
在com.amazonaws.util.VersionInfoUtils.getUserAgent（VersionInfoUtils.java:100）~[aws-java-sdk-core-1.11.662.jar:na]
在com.amazonaws.ClientConfiguration.（ClientConfiguration.java:78）~[aws-java-sdk-core-1.11.662.jar:na]
在com.amazonaws.ClientConfigurationFactory.getDefaultConfig（ClientConfigurationFactory.java:46）~[aws-java-sdk-core-1.11.662.jar:na]
在com.amazonaws.services.dynamodbv2.amazondynamodclientconfigurationfactory.getDefaultConfig（amazondynamodclientconfigurationfactory.java:31）~[aws-java-sdk-dynamodb-1.11.662.jar:na]
在com.amazonaws.ClientConfigurationFactory.getConfig（ClientConfigurationFactory.java:36）~[aws-java-sdk-core-1.11.662.jar:na]
在com.amazonaws.client.builder.AwsClientBuilder.resolveClientConfiguration（AwsClientBuilder.java:169）~[aws-java-sdk-core-1.11.662.jar:na]
在com.amazonaws.client.builder.AwsClientBuilder.access$000（AwsClientBuilder.java:54）~[aws-java-sdk-core-1.11.662.jar:na]
在com.amazonaws.client.builder.AwsClientBuilder$SyncBuilderParams.（AwsClientBuilder.java:505）~[aws-java-sdk-core-1.11.662.jar:na]
在com.amazonaws.client.builder.AwsClientBuilder.getSyncClientParams（AwsClientBuilder.java:441）~[aws-java-sdk-core-1.11.662.jar:na]
在com.amazonaws.client.builder.AwsSyncClientBuilder.build（AwsSyncClientBuilder.java:46）~[aws-java-sdk-core-1.11.662.jar:na]
在com.my.company.my.app.webservice.config.DynamoConfig.localAmazonDynamoDB（DynamoConfig.java:55）~[classes/:na]

停止本地dynamo db服务器并尝试启动应用程序将产生完全相同的结果，这使我认为在代码中尝试连接到dynamo服务器的方式是不正确的

我的本地环境是windows 10

提前感谢您的投入

注意

---

我在我的个人笔记本电脑上做了完全相同的设置，一切正常。我的笔记本电脑正在运行Fedora Linux，但我认为这不应该成为问题。

提供

aws sdk

版本和

DynamoConfig.java

第55行。aws-java-sdk-dynamodb版本为1.11.662。DynamoConfig.java中的第55行只是对build（）方法的调用。如果我在调试器al中不使用build（）对表达式进行求值，它将解析为AmazondynamodClientBuilder实例，这似乎是一个冲突依赖项的问题，如果使用maven，请查看依赖项树并检查，其中com.fasterxml.jackson.databind的依赖项。是的，最好的祝愿这就是原因。我被限制使用1.11.662，因为这是我们公司存储库中可用的最新版本。我认为这是错误的，它从来没有工作过，因为它依赖于jackson dataformat cbor版本2.6.7。我一被迫依赖2.9.9，问题就消失了。aws sdk本月仅发布了至少20次，而且依赖性问题也会悄然出现。请将您的评论作为答案发布，以便我可以接受。助教