redis配置（不全）

1、pom 添加依赖

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

2、Redis 配置类

package com.exam.config;

import com.alibaba.fastjson.support.spring.FastJsonRedisSerializer;
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;

@Configuration
public class RedisConfig {

    @Bean
//    @SuppressWarnings(value = {"sf","sdf"})  // ‌SuppressWarnings注解的作用是用于抑制‌编译器产生某些类型的警告
    public RedisTemplate<Object, Object> redisTemplate(RedisConnectionFactory redisConnectionFactory){
        RedisTemplate<Object, Object> template = new RedisTemplate<>();
        template.setConnectionFactory(redisConnectionFactory);

        FastJsonRedisSerializer serializer = new FastJsonRedisSerializer(Object.class);

        // 使用 StringRedisSerializer 来序列化与发序列化 redis 的 key 值
        template.setKeySerializer(new StringRedisSerializer());
        template.setValueSerializer(serializer);

        // Hash 的 key 也采用 StringRedisSerializer 的序列方式
        template.setHashKeySerializer(new StringRedisSerializer());
        template.setHashValueSerializer(serializer);

        template.afterPropertiesSet();

        return template;
    }
}