Redis6快速入门（二）

<dependency>
    <groupId>redis.clients</groupId>
    <artifactId>jedis</artifactId>
    <version>3.3.0</version>
</dependency>

package com.caq.jedis;
import org.junit.Test;
import redis.clients.jedis.Jedis;
import java.util.List;
import java.util.Set;
public class JedisDemo1 {
    public static void main(String[] args) {
        //创建jedis对象
        Jedis jedis = new Jedis("172.20.10.9", 6379);
        //测试
        String ping = jedis.ping();
        System.out.println(ping);
    }
    //    操作zset
    @Test
    public void demo05() {
        Jedis jedis = new Jedis("172.20.10.9", 6379);
        jedis.zadd("china",100d,"shanghai");
        Set<String> china = jedis.zrange("china", 0, -1);
        System.out.println(china);
        jedis.close();
    }
    // 操作hash
    @Test
    public void demo04() {
        Jedis jedis = new Jedis("172.20.10.9", 6379);
        jedis.hset("demo04", "age", "20");
        String hget = jedis.hget("demo04", "age");
        System.out.println(hget);
        jedis.close();
    }
    //    操作set
    @Test
    public void demo03() {
        Jedis jedis = new Jedis("172.20.10.9", 6379);
        jedis.sadd("demo03", "lucy");
        jedis.sadd("demo03", "monkey");
        Set<String> name = jedis.smembers("demo03");
        System.out.println(name);
        jedis.close();
    }
    //操作list
    @Test
    public void demo02() {
        Jedis jedis = new Jedis("172.20.10.9", 6379);
        jedis.lpush("demo02", "lucy", "jack", "tom");
        List<String> key1 = jedis.lrange("demo02", 0, -1);
        System.out.println(key1);
        jedis.close();
    }
    //操作key
    @Test
    public void demo1() {
        //创建redis对象
        Jedis jedis = new Jedis("172.20.10.9", 6379);
//        Set<String> keys = jedis.keys("*");
//        keys.forEach(x-> System.out.println(x));
//        添加
//        jedis.set("name","jack");
//        String name = jedis.get("name");
//        添加多个key
        jedis.mset("k1", "v1", "k2", "v2");
        List<String> mget = jedis.mget("k1", "k2");
        System.out.println(mget);
        jedis.close();
    }
}

package com.caq.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("342352132");
        //校验
        getRedisCode("342352132", "833731");
    }
    //1 生成6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，设置超时时间
    public static void verifyCode(String phone) {
//        连接redis
        Jedis jedis = new Jedis("10.216.54.73", 6379);
//        拼接key
//        手机发送次数key
        String countKey = "VerityCode" + phone + ":count";
//        验证码key
        String codeKey = "VerityCode" + 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;
        }
        //发送验证码放到redis里面
        String vcode = getCode();
        jedis.setex(codeKey, 120, vcode);
        jedis.close();
    }
    //    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("10.216.54.73", 6379);
        //验证码key
        String codeKey = "VerityCode" + phone + ":code";
        String redisCode = jedis.get(codeKey);
        //判断
        if (redisCode.equals(code)) {
            System.out.println("success");
        } else {
            System.out.println("fail");
        }
        jedis.close();
    }
}

<dependency>
    <groupId>org.springframework.boot</groupId>
    <artifactId>spring-boot-starter-data-redis</artifactId>
</dependency>
<!-- spring2.X集成redis所需common-pool2-->
<dependency>
    <groupId>org.apache.commons</groupId>
    <artifactId>commons-pool2</artifactId>
</dependency>
<dependency>
    <groupId>com.fasterxml.jackson.core</groupId>
    <artifactId>jackson-databind</artifactId>
    <version>2.13.1</version>
</dependency>

spring:
  redis:
    #Redis服务器地址
    host: 10.216.54.73
    #Redis服务器连接端口
    port: 6379
    #Redis数据库索引（默认为0）
    database: 0
    #连接超时时间（毫秒）
    timeout: 1800000
    lettuce:
      pool:
        #连接池最大连接数（使用负值表示没有限制）
        max-active: 20
        #最大阻塞等待时间(负数表示没限制)
        max-wait: -1
        #最大阻塞等待时间(负数表示没限制)
        max-idle: 5
        #连接池中的最小空闲连接
        min-idle: 0

package com.caq.boot.config;
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.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<String, Object> redisTemplate(RedisConnectionFactory factory) {
        RedisTemplate<String, Object> template = new RedisTemplate<>();
        RedisSerializer<String> 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
        template.setValueSerializer(jackson2JsonRedisSerializer);
//value hashmap序列化
        template.setHashValueSerializer(jackson2JsonRedisSerializer);
        return template;
    }
    @Bean
    public CacheManager cacheManager(RedisConnectionFactory factory) {
        RedisSerializer<String> redisSerializer = new StringRedisSerializer();
        Jackson2JsonRedisSerializer jackson2JsonRedisSerializer = new Jackson2JsonRedisSerializer(Object.class);
//解决查询缓存转换异常的问题
        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（解决乱码的问题）,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;
    }
}

package com.caq.boot.controller;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.data.redis.core.RedisTemplate;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;
@RestController
@RequestMapping("/redisTest")
public class RedisTestController {
    @Autowired
    private RedisTemplate redisTemplate;
    @GetMapping
    public String testRedis(){
        //设置值到redis
        redisTemplate.opsForValue().set("name","lucy");
//        从redis获取值
        String name = (String) redisTemplate.opsForValue().get("name");
        return name;
    }
}