1.生成随机六位验证码

//1.生成六位数字验证码
public  static String getCode(){Random random = new Random();String code = "";for (int i = 0; i < 6; i++) {int rand = random.nextInt(10);code+=rand;}return code;
}

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

 //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public static void verifyCode(String phone){Jedis jedis = new Jedis("192.168.200.130",6379);//拼接key//手机发送次数keyString countKey = "VerifyCode"+phone+":count";//验证码keyString codeKey = "VerifyCode"+phone+":code";//每个手机每天只能发送三次String count = jedis.get(countKey);if(count == null){//没有你发送次数，第一次发送//设置发送次数是1jedis.setex(countKey,24*60*60,"1");}else if(Integer.parseInt(count)<=2){//发送次数+1jedis.incr(countKey);}else if(Integer.parseInt(count)>2){System.out.println("今天发送次数已经超过三次");jedis.close();return;}//验证码放到redis中,设置2分钟String vcode = getCode();jedis.setex(codeKey,120,vcode);jedis.close();}

3.验证码校验

//3.验证码校验public static void getRedisCode(String phone,String code){//从redis获取验证码Jedis jedis = new Jedis("192.168.200.130",6379);//验证码keyString 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！");}}

测试

 public static void main(String[] args) {
//        String code = getCode();
//        System.out.println(code);//模拟验证码发送
//        verifyCode("18296121597");getRedisCode("18296121597","483378");}