缓存优化——环境搭建

maven坐标

在项目的pom.xml文件中导入spring data redis的maven坐标：

<dependency>

　　<groupId>org.springframework.boot</groupId>

　　<artifactId>spring-boot-starter-data-redis</artifactId>

</dependency>

配置文件

在项目的application.yml中加入redis相关配置：

spring:
      redis:
        host: redis服务所在主机ip
        port: 6379
        password: 密码
        database: 0

配置类

在项目中加入配置类RedisConfig

package com.itheima.config;

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.connection.lettuce.LettuceConnectionFactory;
import org.springframework.data.redis.core.RedisTemplate;
import org.springframework.data.redis.serializer.StringRedisSerializer;

@Configuration
public class RedisConfig extends CachingConfigurerSupport {

    @Bean
    public RedisTemplate<Object, Object> redisTemplate(RedisConnectionFactory connectionFactory) {
        RedisTemplate<Object, Object> redisTemplate = new RedisTemplate<>();

        //默认的Key序列化器为：JdkSerializationRedisSerializer
        redisTemplate.setKeySerializer(new StringRedisSerializer()); // key序列化
        //redisTemplate.setValueSerializer(new GenericJackson2JsonRedisSerializer()); // value序列化

        redisTemplate.setConnectionFactory(connectionFactory);
        return redisTemplate;
    }
}