redis 手机验证码实现示例

/**
 * @author gh  Email:@2495140780qq.com
 * @Description
 * @date 2021-11-10-21:12
 */
public class PhoneCode {
    public static void main(String[] args) {
        //模拟验证码发送
//        verifyCode("13796734562");
        //效验
        getRedisCode("13796734562", "740032");
    }
    //3.验证码的校验
    public static void getRedisCode(String phone,String code) {
        //从redis中获取验证码
        Jedis jedis = new Jedis("127.0.0.1",6379);
        //验证码key
        String codeKey = "VerifyCode"+phone+":code";
        String redisCode = jedis.get(codeKey);
        //判断
        if(redisCode.equals(code)) {
            System.out.println("成功");
        }else {
            System.out.println("失败");
        }
        jedis.close();
    }
    //2.每个手机每天只能发送三次，验证码放到redis中，设置过期时间60
    public static void verifyCode(String phone) {//手机号
        //链接redis
        Jedis jedis = new Jedis("127.0.0.1",6379);
        //拼接key
        //手机发送次数
        String countKey = "VerifyCode" + phone + ":count";//规则保证唯一，规则自己订
        //验证码key
        String codeKey = "VerifyCode" + phone + ":code";
        //每个手机每天只能发送三次
        String count = jedis.get(countKey);//手机发送次数
        if (count == null) {
            //没有发送次数，第一次发送
            //设置发送次数是1
            jedis.setex(countKey, 24*60*60, "1");
        }else if (Integer.parseInt(count) <= 2) {
            //发送次数 +1
            jedis.incr(countKey);
        }else if (Integer.parseInt(count) >2) {
            //发送三次，不能大发送
            System.out.println("今天发送次数已经超过三次");
            jedis.close();
            return;
        }
        //发送的验证放到redis中去
        String vcode = getCode();
        jedis.setex(codeKey,120,vcode);
        jedis.close();
    }
    //1.生成6位的验证码
    public static String getCode() {
        Random random = new Random();
        String code = "";
        for (int i = 0; i < 6; i++) {
            int rand = random.nextInt(10);   //10 以内的值
            code += rand;
        }
        return code;
    }
}

127.0.0.1:6379> flushdb
OK
127.0.0.1:6379> keys *
1) "VerifyCode13796734562:count"
2) "VerifyCode13796734562:code"
127.0.0.1:6379> get VerifyCode13796734562:count   # 第一次获取验证码
"1"
127.0.0.1:6379> get VerifyCode13796734562:code    # 获取的验证码为
"478121"
127.0.0.1:6379> get VerifyCode13796734562:count
"2"
127.0.0.1:6379> get VerifyCode13796734562:code
"250610"
校验