【Redis优化】SpringDataRedis序列化方式对比

在Spring Data Redis中，我们可以通过配置来选择不同的序列化方式，以下是几种常见的序列化方式及其对应的配置方法：

1. 使用Jackson2JsonRedisSerializer进行JSON格式的序列化：

@Bean
public RedisTemplate<Object, Object> redisTemplate(RedisConnectionFactory redisConnectionFactory) {
    RedisTemplate<Object, Object> template = new RedisTemplate<>();
    template.setConnectionFactory(redisConnectionFactory);
 
    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);
 
    template.setDefaultSerializer(jackson2JsonRedisSerializer);
    template.afterPropertiesSet();
    return template;
}

2. 使用StringRedisSerializer进行字符串序列化：

@Bean
public RedisTemplate<String, String> redisTemplate(RedisConnectionFactory redisConnectionFactory) {
    RedisTemplate<String, String> template = new RedisTemplate<>();
    template.setConnectionFactory(redisConnectionFactory);
 
    StringRedisSerializer stringRedisSerializer = new StringRedisSerializer();
    
    template.setDefaultSerializer(stringRedisSerializer);
    template.setKeySerializer(stringRedisSerializer);
    template.setValueSerializer(stringRedisSerializer);
    template.setHashKeySerializer(stringRedisSerializer);
    template.setHashValueSerializer(stringRedisSerializer);
    template.afterPropertiesSet();
    return template;
}

3. 使用JdkSerializationRedisSerializer进行Java对象的序列化：

@Bean
public RedisTemplate<Object, Object> redisTemplate(RedisConnectionFactory redisConnectionFactory) {
    RedisTemplate<Object, Object> template = new RedisTemplate<>();
    template.setConnectionFactory(redisConnectionFactory);
 
    JdkSerializationRedisSerializer jdkSerializationRedisSerializer = new JdkSerializationRedisSerializer();
    
    template.setDefaultSerializer(jdkSerializationRedisSerializer);
    template.setKeySerializer(jdkSerializationRedisSerializer);
    template.setValueSerializer(jdkSerializationRedisSerializer);
    template.setHashKeySerializer(jdkSerializationRedisSerializer);
    template.setHashValueSerializer(jdkSerializationRedisSerializer);
    template.afterPropertiesSet();
    return template;
}

在选择序列化方式时，需要考虑序列化