redis 导入坐标依赖

<!--redis依赖 -->
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-data-redis</artifactId>
        </dependency>

Redis配置类

package com.sky.config;                    
import lombok.extern.slf4j.Slf4j;
import org.springframework.cache.annotation.CachingConfigurerSupport;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.data.redis.connection.RedisConnectionFactory;
import org.springframework.data.redis.core.RedisTemplate;
import org.springframework.data.redis.serializer.StringRedisSerializer;

/**
 * Redis配置类
 * 如果不创建 框架会自己创建，这里只是配置一下
 */
@Configuration
@Slf4j
public class RedisConfiguration extends CachingConfigurerSupport {
    @Bean
    public RedisTemplate<String, Object> redisTemplate(RedisConnectionFactory connectionFactory) {
        RedisTemplate<String, Object> redisTemplate = new RedisTemplate<>();
        // 默认是redis  Key的序列化器
        redisTemplate.setKeySerializer(new StringRedisSerializer());
        //设置redis的连接工厂对象
        redisTemplate.setConnectionFactory(connectionFactory);

        return redisTemplate;
    }
}

application.yml配置文件

spring:
  redis:
    host: 127.0.0.1  # Redis服务器地址
    port: 6379  # Redis服务器连接端口
    password: 123456   # Redis服务器连接密码（默认为空）
    database: 0    # Redis数据库索引（默认为0）