spring boot中如何实现在手机注册和登录时获取验证码（阿里短信服务）

        <dependency>
            <groupId>com.aliyun</groupId>
            <artifactId>aliyun-java-sdk-core</artifactId>
            <version>4.1.0</version>
        </dependency>

public class SmsService {
    public static void send(String phone,String key){
//第二个参数为自己独有的accessKeyid，第三个参数为自己独有的accessKeySecret
        DefaultProfile profile = DefaultProfile.getProfile("cn-hangzhou",
                "LTAI1hYCS9XTEacVqo","0ynfa4RQlbrDpvSz3jZpszcik6aLAAM");
        IAcsClient client = new DefaultAcsClient(profile);
        CommonRequest request = new CommonRequest();//组装请求对象
        //request.setProtocol(ProtocolType.HTTPS);
        request.setMethod(MethodType.POST);//设置post提交
        request.setDomain("dysmsapi.aliyuncs.com");//短信API产品域名（接口地址固定，无需修改）
        request.setVersion("2017-05-25");
        request.setAction("SendSms");
        request.putQueryParameter("RegionId", "cn-hangzhou");
        request.putQueryParameter("PhoneNumbers", phone);
        request.putQueryParameter("SignName", "健康教育");//短信签名
        request.putQueryParameter("TemplateCode", "SMS_162731312");
        request.putQueryParameter("TemplateParam", "{code:"+key+"}");
        try {
            CommonResponse response = client.getCommonResponse(request);
            System.out.println(response.getData());
        } catch (ServerException e) {
            e.printStackTrace();
        } catch (ClientException e) {
            e.printStackTrace();
        }
}
}

    public static  void main(String []args){
        SmsService.send("18438595560","1100");
    }

/**
     * 后台获得验证码
     */
    @RequestMapping("/getcode")
    @ResponseBody
    public int getcode(String phone) {
        long l=System.currentTimeMillis();
        int k1=(int) (l%10000);
        String code=String.valueOf(k1);
        //session中保存我后台生成的code,为了将来拿出来与用户提交的进行比较。
        Subject subject = SecurityUtils.getSubject();
        Session session = subject.getSession();
        session.setAttribute("autocode",code);
        //成功返回0，失败返回1
        if(phone!=null){
            //把后台生成的code和所发送的手机号传进发送消息类，调用执行。
            SmsService.send(phone,code);
            return 0;
        }else{
            return 1;
        }
    }

 /**
     *判断验证码的正确性
     */
    @RequestMapping("/comparecode")
    @ResponseBody
    public int authorization(String preauthcode) {
        Subject subject = SecurityUtils.getSubject();
        Session session = subject.getSession();
        String autocode= (String) session.getAttribute("autocode");
        //验证码不为空时，到后台进行比较，返回响应码，为1，提示请先获得验证码
        //为2，提示验证码错误
        //为3，验证码正确，无提示
        if(autocode==null){
            return 1;
        }else if(autocode.equals(preauthcode)){
            return 3;
        }else{
            return 2;
        }
    }