<dependency>
            <groupId>com.aliyun</groupId>
            <artifactId>dysmsapi20170525</artifactId>
            <version>3.0.0</version>
        </dependency>
        
        <dependency>
            <groupId>com.aliyun</groupId>
            <artifactId>aliyun-java-sdk-core</artifactId>
            <version>4.5.0</version>
        </dependency>

        <dependency>
            <groupId>com.aliyun</groupId>
            <artifactId>aliyun-java-sdk-dysmsapi</artifactId>
            <version>2.1.0</version>
        </dependency>

public class SmsUtil {

    private static final String ACCESS_KEY_ID = "";//AccessKey自己賬號的
    private static final String ACCESS_KEY_SECRET = "";
    private static final String ENDPOINT = "dysmsapi.aliyuncs.com";//固定死
    private static final String SIGNNAME = "";//簽名名稱
    private static final String TCODE = "";//模版的編號

    public static String  sendSms(String phoneNumbers) throws Exception {

        String code=generateVerificationCode();

        Config config = new Config()
                .setAccessKeyId(ACCESS_KEY_ID)
                .setAccessKeySecret(ACCESS_KEY_SECRET)
                .setEndpoint(ENDPOINT);

        Client client = new Client(config);
        SendSmsRequest sendSmsRequest = new SendSmsRequest()
                .setPhoneNumbers(phoneNumbers)
                .setSignName(SIGNNAME)
                .setTemplateCode(TCODE)
                //此處是設(shè)計(jì)模版的時候預(yù)留的變量$[code]就驗(yàn)證碼，用下面的隨機(jī)生成4位數(shù)字傳入
                .setTemplateParam(String.format("{\"code\":\"%s\"}", code));

        try {
            SendSmsResponse sendSmsResponse = client.sendSms(sendSmsRequest);
            return code;
        } catch (TeaException error) {
            return "失敗";
        }
    }

    /**
     * 驗(yàn)證碼隨機(jī)四位
     */
    private static String generateVerificationCode() {
        // 生成四位數(shù)字驗(yàn)證碼
        Random random = new Random();
        int code = random.nextInt(10000); // 隨機(jī)生成 0 到 9999 的整數(shù)
        return String.format("%04d", code); // 保證生成的是四位數(shù)字，不足四位時前面補(bǔ)0
    }
}

    /**
     * 發(fā)送短信
     * @param phone
     * @return
     */
    @RequestMapping("sendCode")
    public ResultVO sendMessage(@RequestParam String phone){
        try {
            String code = SmsUtil.sendSms(phone);
            //使用redis 存起來，過期時間300秒，用于登錄時拿出來驗(yàn)證
            redisTemplate.opsForValue().set("yzm"+phone,code,300, TimeUnit.SECONDS);

            return ResultUtil.success("驗(yàn)證碼發(fā)送成功");
        } catch (Exception e) {
            return ResultUtil.error("驗(yàn)證碼發(fā)送失敗");
        }
    }