Amazon ec2 AWS EC2用户数据未使用Java API工作

我有以下代码用用户数据创建EC2实例

但它在创建EC2实例后不会创建日志文件

如果我做错了什么，请帮助我

代码如下：-

class EC2Demo{
<br>public static void main(String str[]){

{  //AWS Credencial lines......

        RunInstancesRequest request = new RunInstancesRequest();
        request.setInstanceType(InstanceType.T1Micro);
        request.setMinCount(1); 
        request.setMaxCount(1);
        request.setImageId("ami-ab844dc2");
        request.setKeyName("VIIT1");
        ArrayList<String> securityGroups = new ArrayList<String>();
        securityGroups.add("VIITgroup");
        request.setSecurityGroups(securityGroups);
        Placement placement=new Placement();
        placement.setAvailabilityZone("us-east-1d");
        request.setPlacement(placement);

        request.setUserData(getUserDataScript());
        System.out.println("Shell Script");
        System.out.println("-------->>>>"+ec2.runInstances(request));
        //}
        System.out.println("End");

    }
    private static String getUserDataScript(){
        ArrayList<String> lines = new ArrayList<String>();
        lines.add("#! /bin/bash");
        lines.add("cd /home");
        lines.add("echo `ls` >> /home/test.log");
        //lines.add("shutdown -h 0");
        String str = new String(Base64.encodeBase64(join(lines, "\n").getBytes()));

        return str;
    }

    static String join(Collection<String> s, String delimiter) {
        StringBuilder builder = new StringBuilder();
        Iterator<String> iter = s.iterator();
        while (iter.hasNext()) {
            builder.append(iter.next());
            if (!iter.hasNext()) {
                break;
            }
            builder.append(delimiter);
        }
        return builder.toString();
    }

}

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您使用的AMI支持cloud init吗？我使用的是amazon linux AMI。我不知道怎么检查。请您推荐任何支持amazon linux的ami列表。此ami-ab844dc2不是amazon linux ami。相反，它是SUSE。据我所知，它不支持cloudinit。用ami-c02ab6a9再试一次。