redis为什么要序列化

import com.fasterxml.jackson.annotation.JsonAutoDetect;

import com.fasterxml.jackson.annotation.PropertyAccessor;

import com.fasterxml.jackson.databind.ObjectMapper;

import org.springframework.context.annotation.Bean;

import org.springframework.context.annotation.Configuration;

import org.springframework.data.redis.core.RedisTemplate;

import org.springframework.data.redis.serializer.Jackson2JsonRedisSerializer;

import org.springframework.data.redis.serializer.StringRedisSerializer;

/**

 * Redis配置

 *

 * @author LinJie

 */

@Configuration

public class RedisConfig {

    /**

     * Redis repository redis repository.

     *

     * @param redisTemplate the redis template

     * @return the redis repository

     */

    @Bean

    public RedisRepository redisRepository(RedisTemplate redisTemplate) {

        // 使用Jackson2JsonRedisSerialize 替换默认序列化

        Jackson2JsonRedisSerializer jackson2JsonRedisSerializer = new Jackson2JsonRedisSerializer(Object.class);

        ObjectMapper objectMapper = new ObjectMapper();

        objectMapper.setVisibility(PropertyAccessor.ALL, JsonAutoDetect.Visibility.ANY);

        objectMapper.enableDefaultTyping(ObjectMapper.DefaultTyping.NON_FINAL);

        jackson2JsonRedisSerializer.setObjectMapper(objectMapper);

        StringRedisSerializer stringRedisSerializer = new StringRedisSerializer();

        // key采用String的序列化方式

        redisTemplate.setKeySerializer(stringRedisSerializer);

        // hash的key也采用String的序列化方式

        redisTemplate.setHashKeySerializer(stringRedisSerializer);

        // value序列化方式采用jackson

        redisTemplate.setValueSerializer(jackson2JsonRedisSerializer);

        // hash的value序列化方式采用jackson

        redisTemplate.setHashValueSerializer(jackson2JsonRedisSerializer);

        redisTemplate.afterPropertiesSet();

        return new RedisRepository(redisTemplate);

    }

}