1
我在关注Kinesis Streams上的http://docs.aws.amazon.com/streams/latest/dev/learning-kinesis-module-one.html教程。AWS Kinesis客户端因java.lang.NoClassDefFoundError失败
我已经创建了两个包，一个是生产者，另一个是消费者。我可以正确生成数据，并且我可以从指标仪表板看到数据正在进入数据流。
当我跑我的客户，我得到了下面的堆栈跟踪：
1246 [main] DEBUG com.amazonaws.services.kinesis.samples.stocktrades.processor.StockTradesProcessor - Caught throwable while processing data.
java.lang.NoClassDefFoundError: com/amazonaws/util/json/JSONObject
at com.amazonaws.services.kinesis.leases.impl.Lease.toString(Lease.java:229)
at java.lang.String.valueOf(Unknown Source)
at java.lang.StringBuilder.append(Unknown Source)
at com.amazonaws.services.kinesis.leases.impl.LeaseManager.createLeaseIfNotExists(LeaseManager.java:281)
at com.amazonaws.services.kinesis.clientlibrary.lib.worker.ShardSyncer.syncShardLeases(ShardSyncer.java:127)
at com.amazonaws.services.kinesis.clientlibrary.lib.worker.ShardSyncer.checkAndCreateLeasesForNewShards(ShardSyncer.java:88)
at com.amazonaws.services.kinesis.clientlibrary.lib.worker.ShardSyncTask.call(ShardSyncTask.java:68)
at com.amazonaws.services.kinesis.clientlibrary.lib.worker.MetricsCollectingTaskDecorator.call(MetricsCollectingTaskDecorator.java:49)
at com.amazonaws.services.kinesis.clientlibrary.lib.worker.Worker.initialize(Worker.java:395)
at com.amazonaws.services.kinesis.clientlibrary.lib.worker.Worker.run(Worker.java:330)
at com.amazonaws.services.kinesis.samples.stocktrades.processor.StockTradesProcessor.main(StockTradesProcessor.java:102)
Caused by: java.lang.ClassNotFoundException: com.amazonaws.util.json.JSONObject
at java.net.URLClassLoader.findClass(Unknown Source)
at java.lang.ClassLoader.loadClass(Unknown Source)
at sun.misc.Launcher$AppClassLoader.loadClass(Unknown Source)
at java.lang.ClassLoader.loadClass(Unknown Source)
... 11 more
这看起来像是类路径的问题。你有包含'com.amazonaws.util.json.JSONObject'的jar，并且你已经验证它在你的类路径中吗？你如何启动你的消费者？ – Krease