Jedis操作Redis实现模拟验证码发送功能

目录

• jedis的创建
• 1.先启动redis 如果报
• 2.创建一个maven工程
  
• 3.创建一个class
• jedis实现模拟验证码
• 相关数据类型测试
• Key
• String
• List
• set
• hash
• zset

jedis的创建

1.先启动redis 如果报

那么说明你redis服务器服务器端还没打开

//启动服务端
redis-server /etc/redis.conf
//启动客户端
redis-cli

如果启动成功，就是这样

2.创建一个maven工程

导入Jedis依赖

<dependencies>
        <dependency>
            <groupId>redis.clients</groupId>
            <artifactId>jedis</artifactId>
            <version>3.2.0</version>
        </dependency>
    </dependencies>

3.创建一个class

public class JedisDemo1 {
    public static void main(String[] args) {
        Jedis jedis = new Jedis("xx.xxx.xx.xx",6379);
        //如果redis配置了密码就在这里输入不然会连接失败
        jedis.auth("xxxx");
        String value = jedis.ping();
        System.out.println(value);
    }
}

如果是第一次连接会很大概率报错

这时候有两种方法第一种是关闭防火墙，但是这种不太好，其实只要开放6379端口连接就可以了

jedis实现模拟验证码

public class PhoneCode {
    public static void main(String[] args) {

            verifyCode("12345678900");
            //校验验证码是否正确
//            GetRedisCode("12345678900","940487");
    }

    //1.生成六位验证码
    public static String getCode(){
        Random random = new Random();
        String Code = "";
        for (int i = 0; i < 6; i++) {
            int i1 = random.nextInt(10);
            Code = Code +i1;
        }
        return Code;
    }

    //2.每个手机每天只能发三次，验证码放到redis中，设置过期时间
    public static void verifyCode(String phone){
        //连接redis
        Jedis jedis = new Jedis("172.18.17.215",6379);
        jedis.auth("1052600676");
        //先自定义两个key，从而通过后面步骤给key赋一个value
        //手机发送次数
        String CountKey = phone+"count";
        //验证码key
        String CodeKey = phone + "code";

        //每个手机每天只能发送三次
        //通过key查看是否有value
        String count = jedis.get(CountKey);
        if (count == null){
            //没有发送次数，说明是第一次发送，那就设置发送次数为1
            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("验证码超过三次，无法发送");
            jedis.close();
            return;
        }

        //设置过期时间
        //value
        String codee = getCode();

        jedis.setex(CodeKey,120,codee);
        jedis.close();

    }

    //3.验证码校验
    public static void GetRedisCode(String phone,String code){
        //连接redis
        Jedis jedis = new Jedis("172.18.17.215",6379);
        jedis.auth("1052600676");

        //验证码key
        String CodeKey = phone + "code";
        String RedisCode = jedis.get(CodeKey);

        if (RedisCode.equals(code)){
            System.out.println("成功");
        }else{
            System.out.println("失败");
        }
        jedis.close();
    }

}

通过这些操作实现验证码发送

超过三次

相关数据类型测试

Key

jedis.set("k1", "v1");
	jedis.set("k2", "v2");
	jedis.set("k3", "v3");
		
	Set<String> keys = jedis.keys("*");

	System.out.println(keys.size());

	for (String key : keys) {
		System.out.println(key);
	}

	System.out.println(jedis.exists("k1"));
	System.out.println(jedis.ttl("k1"));                
	System.out.println(jedis.get("k1"));

String

jedis.mset("str1","v1","str2","v2","str3","v3");
	
	System.out.println(jedis.mget("str1","str2","str3"));

List

List<String> list = jedis.lrange("mylist",0,-1);
	
	for (String element : list) {
		System.out.println(element);
	}

set

jedis.sadd("orders", "order01");
	jedis.sadd("orders", "order02");
	jedis.sadd("orders", "order03");
	jedis.sadd("orders", "order04");
	
	Set<String> smembers = jedis.smembers("orders");
	
	for (String order : smembers) {
		System.out.println(order);
	}
	
	jedis.srem("orders", "order02");

hash

jedis.hset("hash1","userName","lisi");
	System.out.println(jedis.hget("hash1","userName"));
	
	Map<String,String> map = new HashMap<String,String>();
	
	map.put("telphone","13810169999");
	map.put("address","atguigu");
	map.put("email","abc@163.com");
	
	jedis.hmset("hash2",map);
	
	List<String> result = jedis.hmget("hash2","telphone","email");
	
	for (String element : result) {
		System.out.println(element);
	}

zset

jedis.zadd("zset01", 100d, "z3");
	jedis.zadd("zset01", 90d, "l4");
	jedis.zadd("zset01", 80d, "w5");
	jedis.zadd("zset01", 70d, "z6");
 
	Set<String> zrange = jedis.zrange("zset01", 0, -1);
	
	for (String e : zrange) {
		System.out.println(e);
	}