尝试创建 aws ec2 客户端时播放框架错误

Question

我正在尝试制作一个简单的播放框架应用程序来监控我的 aws ec2 实例。我一直关注this guide 开始。这是我遇到问题的方法。

public static AmazonEC2Client createClient(){
    String accessKey = "ACCESS_KEY";
    String secretKey = "SECRET_KEY";
    String endpoint = "ec2.us-east-1.amazonaws.com";

    BasicAWSCredentials credentials  = new BasicAWSCredentials(accessKey, secretKey);
    AmazonEC2Client ec2Client = new AmazonEC2Client(credentials);
    ec2Client.setEndpoint(endpoint);
    return ec2Client;
}

当方法运行时我得到这个错误并且播放服务器停止。

Uncaught error from thread [play-akka.actor.default-dispatcher-3] shutting down JVM since       'akka.jvm-exit-on-fatal-error' is enabled for ActorSystem[play]
java.lang.NoClassDefFoundError: org/apache/http/conn/scheme/SchemeSocketFactory
at com.amazonaws.AmazonWebServiceClient.<init>(AmazonWebServiceClient.java:66)
at com.amazonaws.services.ec2.AmazonEC2Client.<init>(AmazonEC2Client.java:151)
at com.amazonaws.services.ec2.AmazonEC2Client.<init>(AmazonEC2Client.java:132)
at models.AwsServer.createClient(AwsServer.java:17)
at controllers.Devices.index(Devices.java:11)
at     Routes$$anonfun$routes$1$$anonfun$applyOrElse$2$$anonfun$apply$2.apply(routes_routing.scala:61)
at Routes$$anonfun$routes$1$$anonfun$applyOrElse$2$$anonfun$apply$2.apply(routes_routing.scala:61)
at play.core.Router$HandlerInvoker$$anon$7$$anon$2.invocation(Router.scala:183)
at play.core.Router$Routes$$anon$1.invocation(Router.scala:377)
at play.core.j.JavaAction$$anon$1.call(JavaAction.scala:56)
at play.core.j.JavaAction$$anon$3.apply(JavaAction.scala:91)
at play.core.j.JavaAction$$anon$3.apply(JavaAction.scala:90)
at play.core.j.FPromiseHelper$$anonfun$flatMap$1.apply(FPromiseHelper.scala:82)
at play.core.j.FPromiseHelper$$anonfun$flatMap$1.apply(FPromiseHelper.scala:82)
at scala.concurrent.Future$$anonfun$flatMap$1.apply(Future.scala:278)
at scala.concurrent.Future$$anonfun$flatMap$1.apply(Future.scala:274)
at scala.concurrent.impl.CallbackRunnable.run(Promise.scala:29)
[ERROR] [10/01/2013 14:20:16.319] [play-akka.actor.default-dispatcher-3] [ActorSystem(play)] Uncaught error from thread [play-akka.actor.default-dispatcher-3] shutting down JVM since 'akka.jvm-exit-on-fatal-error' is enabled
java.lang.NoClassDefFoundError: org/apache/http/conn/scheme/SchemeSocketFactory
at com.amazonaws.AmazonWebServiceClient.<init>(AmazonWebServiceClient.java:66)
at com.amazonaws.services.ec2.AmazonEC2Client.<init>(AmazonEC2Client.java:151)
at com.amazonaws.services.ec2.AmazonEC2Client.<init>(AmazonEC2Client.java:132)
at models.AwsServer.createClient(AwsServer.java:17)
at controllers.Devices.index(Devices.java:11)
at Routes$$anonfun$routes$1$$anonfun$applyOrElse$2$$anonfun$apply$2.apply(routes_routing.scala:61)
at Routes$$anonfun$routes$1$$anonfun$applyOrElse$2$$anonfun$apply$2.apply(routes_routing.scala:61)
at play.core.Router$HandlerInvoker$$anon$7$$anon$2.invocation(Router.scala:183)
at play.core.Router$Routes$$anon$1.invocation(Router.scala:377)
at play.core.j.JavaAction$$anon$1.call(JavaAction.scala:56)
at play.core.j.JavaAction$$anon$3.apply(JavaAction.scala:91)
at play.core.j.JavaAction$$anon$3.apply(JavaAction.scala:90)
at play.core.j.FPromiseHelper$$anonfun$flatMap$1.apply(FPromiseHelper.scala:82)
at play.core.j.FPromiseHelper$$anonfun$flatMap$1.apply(FPromiseHelper.scala:82)
at scala.concurrent.Future$$anonfun$flatMap$1.apply(Future.scala:278)
at scala.concurrent.Future$$anonfun$flatMap$1.apply(Future.scala:274)
at scala.concurrent.impl.CallbackRunnable.run(Promise.scala:29)
at play.core.j.HttpExecutionContext$$anon$2.run(HttpExecutionContext.scala:37)
at akka.dispatch.TaskInvocation.run(AbstractDispatcher.scala:42)
at akka.dispatch.ForkJoinExecutorConfigurator$AkkaForkJoinTask.exec(AbstractDispatcher.scala:386)
at scala.concurrent.forkjoin.ForkJoinTask.doExec(ForkJoinTask.java:260)
at scala.concurrent.forkjoin.ForkJoinPool$WorkQueue.runTask(ForkJoinPool.java:1339)
at scala.concurrent.forkjoin.ForkJoinPool.runWorker(ForkJoinPool.java:1979)
at scala.concurrent.forkjoin.ForkJoinWorkerThread.run(ForkJoinWorkerThread.java:107)
    Caused by: java.lang.ClassNotFoundException: org.apache.http.conn.scheme.SchemeSocketFactory
at java.net.URLClassLoader$1.run(URLClassLoader.java:202)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(URLClassLoader.java:190)
at java.lang.ClassLoader.loadClass(ClassLoader.java:306)
at java.lang.ClassLoader.loadClass(ClassLoader.java:247)
... 24 more
at play.core.j.HttpExecutionContext$$anon$2.run(HttpExecutionContext.scala:37)

at akka.dispatch.TaskInvocation.run(AbstractDispatcher.scala:42)
at akka.dispatch.ForkJoinExecutorConfigurator$AkkaForkJoinTask.exec(AbstractDispatcher.scala:386)
at scala.concurrent.forkjoin.ForkJoinTask.doExec(ForkJoinTask.java:260)
at scala.concurrent.forkjoin.ForkJoinPool$WorkQueue.runTask(ForkJoinPool.java:1339)
at scala.concurrent.forkjoin.ForkJoinPool.runWorker(ForkJoinPool.java:1979)
at scala.concurrent.forkjoin.ForkJoinWorkerThread.run(ForkJoinWorkerThread.java:107)
Caused by: java.lang.ClassNotFoundException: org.apache.http.conn.scheme.SchemeSocketFactory
at java.net.URLClassLoader$1.run(URLClassLoader.java:202)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(URLClassLoader.java:190)
at java.lang.ClassLoader.loadClass(ClassLoader.java:306)
at java.lang.ClassLoader.loadClass(ClassLoader.java:247)
... 24 more

Answer 1

我遇到了同样的错误。我更改了我的 maven 依赖项的版本并解决了错误。

新的依赖：

<dependency>
            <groupId>com.amazonaws</groupId>
            <artifactId>aws-java-sdk</artifactId>
            <version>1.4.3</version>
</dependency>

旧依赖：

<dependency>
            <groupId>com.amazonaws</groupId>
            <artifactId>aws-java-sdk</artifactId>
            <version>1.5.7</version>
</dependency>

此外，请确保从类路径中删除旧版本，因为如果您不这样做，它往往会选择最新版本。希望这会有所帮助:)