Java部署到AWS云上

1. 首先，您需要创建一个AWS EC2实例。请参考以下代码示例：

AmazonEC2 ec2 = AmazonEC2ClientBuilder.standard()
        .withCredentials(new AWSStaticCredentialsProvider(new BasicAWSCredentials(accessKey, secretKey)))
        .withRegion(region)
        .build();

RunInstancesRequest runRequest = new RunInstancesRequest()
            .withImageId("ami-0c94855ba95c71c99")        // AMI ID for your instance
            .withInstanceType(InstanceType.T2Micro.toString())  // Instance type
            .withMinCount(1)
            .withMaxCount(1)
            .withKeyName("your-key-pair-name")    // Key pair for SSH access
            .withSecurityGroups("your-security-group");   // Security group

RunInstancesResult runResponse = ec2.runInstances(runRequest);

2. 接下来，您需要将您的Java应用程序打包为一个可执行的JAR文件。您可以使用Maven或Gradle进行打包。请参考以下代码示例：

mvn clean package

或

gradle clean build

3. 然后，您需要将该JAR文件上传到AWS S3。您可以使用以下代码示例：

AmazonS3 s3 = AmazonS3ClientBuilder.standard()
        .withCredentials(new AWSStaticCredentialsProvider(new BasicAWSCredentials(accessKey, secretKey)))
        .withRegion(region)
        .build();

PutObjectRequest putRequest = new PutObjectRequest("my-bucket", "my-file.jar", new File("/path/to/my-file.jar"));

s3.putObject(putRequest);

4. 最后，您需要在您的EC2实例上启动Java应用程序。您可以使用以下代码示例：

ssh -i your-key-pair-name.pem ec2-user@ec2-xx-xx-xxx-xxx.compute-1.amazonaws.com

java -jar /path/to/my-file.jar

注意：请将“your-key-pair-name”和“my-bucket”更改为您的实际值。另外，请确保您有足够的AWS权限和资源来完成上述操作。