短信发送验证码，每天只限三次

package com.linfenpeng.jedis.Jedis;

import redis.clients.jedis.Jedis;

import java.util.Random;


public class PhoneCode {

    public static void main(String[] args) {
        //模拟验证码发送
        verifyCode("13417652100");
        //getRedisCode("13417652100","455775");

    }

    //1.生成6位数数字验证码
    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
    public static void verifyCode(String phone){
        Jedis jedis = new Jedis("127.0.0.1",6379);
        //拼接key
        //手机发送次数key
        String countKey = "verifyCode"+phone+":count";
        //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);
        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，不能再发送
            System.out.println("今天发送次数已经超过三次！");
            jedis.close();
            return;
        }
        //发送的验证码放到reids
        String vcode = getCode();
        jedis.setex(codeKey,120,vcode);
        jedis.close();


    }


    //3.验证码校验
    public static void getRedisCode(String phone,String code){
        Jedis jedis = new Jedis("127.0.0.1",6379);
        
        //验证码key
        String codeKey = "verifyCode"+phone+":code";
        String redisCode = jedis.get(codeKey);

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


    }



}

Springboot 整合redis、config 配置

import com.fasterxml.jackson.annotation.JsonAutoDetect;
import com.fasterxml.jackson.annotation.PropertyAccessor;
import com.fasterxml.jackson.databind.ObjectMapper;
import org.springframework.cache.CacheManager;
import org.springframework.cache.annotation.CachingConfigurerSupport;
import org.springframework.cache.annotation.EnableCaching;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.data.redis.cache.RedisCacheConfiguration;
import org.springframework.data.redis.cache.RedisCacheManager;
import org.springframework.data.redis.connection.RedisConnectionFactory;
import org.springframework.data.redis.core.RedisTemplate;
import org.springframework.data.redis.hash.ObjectHashMapper;
import org.springframework.data.redis.serializer.Jackson2JsonRedisSerializer;
import org.springframework.data.redis.serializer.RedisSerializationContext;
import org.springframework.data.redis.serializer.RedisSerializer;
import org.springframework.data.redis.serializer.StringRedisSerializer;

import java.time.Duration;



@EnableCaching
@Configuration
public class RedisConfig extends CachingConfigurerSupport {

    @Bean
    public RedisTemplate redisTemplate(RedisConnectionFactory factory){
        RedisTemplate template = new RedisTemplate<>();
        RedisSerializer redisSerializer = new StringRedisSerializer();
        Jackson2JsonRedisSerializer jackson2JsonRedisSerializer = new Jackson2JsonRedisSerializer(Object.class);
        ObjectMapper om  = new ObjectMapper();
        om.setVisibility(PropertyAccessor.ALL, JsonAutoDetect.Visibility.ANY);
        om.enableDefaultTyping(ObjectMapper.DefaultTyping.NON_FINAL);
        jackson2JsonRedisSerializer.setObjectMapper(om);
        template.setConnectionFactory(factory);
        //key序列化方式
        template.setKeySerializer(redisSerializer);
        //value序列化方式
        template.setHashValueSerializer(jackson2JsonRedisSerializer);
        return template;
    }

    @Bean
    public CacheManager cacheManager(RedisConnectionFactory factory){
        RedisSerializer redisSerializer = new StringRedisSerializer();
        Jackson2JsonRedisSerializer jackson2JsonRedisSerializer = new Jackson2JsonRedisSerializer(Object.class);
        //解决查询缓存异常问题
        ObjectMapper om = new ObjectMapper();
        om.setVisibility(PropertyAccessor.ALL,JsonAutoDetect.Visibility.ANY);
        om.enableDefaultTyping(ObjectMapper.DefaultTyping.NON_FINAL);
        jackson2JsonRedisSerializer.setObjectMapper(om);
        //配置序列化，过期时间600秒
        RedisCacheConfiguration config = RedisCacheConfiguration.defaultCacheConfig()
                .entryTtl(Duration.ofSeconds(600))
                .serializeKeysWith(RedisSerializationContext.SerializationPair.fromSerializer(redisSerializer))
                .serializeValuesWith(RedisSerializationContext.SerializationPair.fromSerializer(jackson2JsonRedisSerializer))
                .disableCachingNullValues();
        RedisCacheManager cacheManager = RedisCacheManager.builder(factory)
                .cacheDefaults(config)
                .build();
        return cacheManager;
    }

}