使用maven进行构建。测试amazon sqs连接。java代码得到编译，但当我运行它时收到一个awscredentials类notfound错误。我已经在java代码中导入了amazonsqs。不知道为什么会给我一个错误。

java -cp "./target/queue-service-1.0.0.jar"  com.example.TestSqsQueueService
    Exception in thread "main" java.lang.NoClassDefFoundError: com/amazonaws/auth/AWSCredentials
Caused by: java.lang.ClassNotFoundException: com.amazonaws.auth.AWSCredentials

在pom.xml中具有以下配置。

<dependency>
    <groupId>com.amazonaws</groupId>
    <artifactId>aws-java-sdk</artifactId>
    <version>1.9.23</version>
</dependency>

在主函数中有下面的java代码并导入下面的文件包com.example；

import com.amazonaws.auth.BasicAWSCredentials;
import com.amazonaws.services.sqs.*;
import com.amazonaws.services.sqs.AmazonSQSClient;
import com.amazonaws.services.sqs.model.*;
import com.amazonaws.auth.AWSCredentials;
import java.util.*;
import java.util.Map.*;

public class TestSqsExample {

public static void main(String args[]) {
       BasicAWSCredentials awsCreds = new BasicAWSCredentials("XXXXXXXXX",  "XXXXXXXXXXXXXX");
     AmazonSQSClient s3Client = new AmazonSQSClient(awsCreds);

    System.out.println("hello world");

}
}