Redisは携帯電話の認証コードを送信する機能を模倣している

// Create a Jedis object to connect to the Redis service (on the server via redis-server you need to specify the configuration file: redis-server /etc/redis.conf)
Jedis jedis = new Jedis("192.168.119.128", 6379);
String value = jedis.ping();
System.out.println(value);
jedis.close();

/**
     * Method for generating a captcha
     * @return code
     */
    public static String getCode() {
        Random random = new Random();
        String code = "";
        for (int i = 0; i < 6; i++) {
            int num = random.nextInt(10);
            code += num;
        }
        System.out.println(code);
        return code;
    }

/**
     * The user clicks to generate a verification code and add it to redis
     * @param phone
     */
    public static void sendVerifyCode(String phone) {
        Jedis jedis = new Jedis("192.168.119.128", 6379);
 
        // key of the phone number, get the number of times the phone number sends the verification code
        String countKey = "VerifyCode" + phone + ":count";
        // Verify the key of the code, get the verification code of the phone number
        String codeKey = "VerifyCode" + phone + ":code";
 
        // Get the countKey to determine whether the current phone number can send the verification code
        String count = jedis.get(countKey);
        if (count == null) {
            jedis.setex(countKey, 24 * 60 * 60, "1");
        } else if (Integer.parseInt(count) <= 2) {
            jedis.incr(countKey);
        } else if (Integer.parseInt(count) > 2) {
            System.out.println("The number of times the current phone number sends the verification code exceeds the limit, please send the verification code again tomorrow");
            jedis.close();
        }
 
        String code = getCode();
        jedis.setex(codeKey, 120, code);
 
        jedis.close();
    }

/**
     * User input phone number and verification code for verification
     * @param phone
     * @param code
     code */
    public static void CustomerVerifyCode(String phone, String code) {
        Jedis jedis = new Jedis("192.168.119.128", 6379);
 
        String codeKey = "VerifyCode" + phone + ":code";
        String phoneVerifyCode = jedis.get(codeKey);
 
        if (phoneVerifyCode.equals(code)) {
            System.out.println("Verification successful! ");
        } else {
            System.out.println("Checksum failed! ");
        }
 
        jedis.close();
    }