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