Spring cache + Redis LocalDateTime反序列化

Fri, 20 May 2022 22:21:21 +0800

/**
* DateTime格式化字符串
*/
private static final String DEFAULT_DATETIME_PATTERN = "yyyy-MM-dd HH:mm:ss";

/**
* Date格式化字符串
*/
private static final String DEFAULT_DATE_PATTERN = "yyyy-MM-dd";

/**
* Time格式化字符串
*/
private static final String DEFAULT_TIME_PATTERN = "HH:mm:ss";

private RedisCacheConfiguration getRedisCacheConfiguration() {

 // 配置序列化（解决乱码的问题）
 RedisCacheConfiguration config = RedisCacheConfiguration.defaultCacheConfig()
 //Key序列化方式redisSerializer
 .serializeKeysWith(RedisSerializationContext.SerializationPair.fromSerializer(keySerializer()))
 .serializeValuesWith(RedisSerializationContext.SerializationPair.fromSerializer(valueSerializer()))
 .disableCachingNullValues();
 return config;
}

/**
 * key 序列化
 *
 * @return
 */
private RedisSerializer<String> keySerializer() {
 return new StringRedisSerializer();
}

/**
 * 值采用JSON序列化
 *
 * @return
 */
private RedisSerializer<Object> valueSerializer() {
 Jackson2JsonRedisSerializer jackson2JsonRedisSerializer = new Jackson2JsonRedisSerializer(Object.class);
 // 解决查询缓存转换异常的问题
 ObjectMapper om = new ObjectMapper();
 om.setVisibility(PropertyAccessor.ALL, JsonAutoDetect.Visibility.ANY);
 om.activateDefaultTyping(new ObjectMapper().getPolymorphicTypeValidator(), ObjectMapper.DefaultTyping.NON_FINAL);
 jackson2JsonRedisSerializer.setObjectMapper(om);

 // Java8日期日期处理 LocalTime,LocalDate,LocalDateTime
 JavaTimeModule javaTimeModule = new JavaTimeModule();
 javaTimeModule.addSerializer(LocalDateTime.class, new LocalDateTimeSerializer(DateTimeFormatter.ofPattern(DEFAULT_DATETIME_PATTERN)));
 javaTimeModule.addSerializer(LocalDate.class, new LocalDateSerializer(DateTimeFormatter.ofPattern(DEFAULT_DATE_PATTERN)));
 javaTimeModule.addSerializer(LocalTime.class, new LocalTimeSerializer(DateTimeFormatter.ofPattern(DEFAULT_TIME_PATTERN)));
 javaTimeModule.addDeserializer(LocalDateTime.class, new LocalDateTimeDeserializer(DateTimeFormatter.ofPattern(DEFAULT_DATETIME_PATTERN)));
 javaTimeModule.addDeserializer(LocalDate.class, new LocalDateDeserializer(DateTimeFormatter.ofPattern(DEFAULT_DATE_PATTERN)));
 javaTimeModule.addDeserializer(LocalTime.class, new LocalTimeDeserializer(DateTimeFormatter.ofPattern(DEFAULT_TIME_PATTERN)));
 om.registerModule(javaTimeModule);
 jackson2JsonRedisSerializer.setObjectMapper(om);
 return jackson2JsonRedisSerializer;
}

nextcloud配置缓存

Mon, 21 Mar 2022 23:27:22 +0800

/config/config.php

'memcache.local' => '\OC\Memcache\APCu',
'memcache.locking' => '\OC\Memcache\Redis',
'redis' => [
 'host' => '127.0.0.1',
 'port' => 6379,
],

参考文档

https://docs.nextcloud.com/server/14/admin_manual/configuration_server/caching_configuration.html

小型/私人家庭服务器

仅使用 APCu：

'memcache.local' => '\OC\Memcache\APCu' ,

小型组织，单服务器设置

使用 APCu 进行本地缓存，使用 Redis 进行文件锁定：

'memcache.local' => '\OC\Memcache\APCu',
'memcache.locking' => '\OC\Memcache\Redis',
'redis' => array(
	'host' => 'localhost',
	'port' => 6379,
),

大型组织，集群设置

对除本地 memcache 之外的所有内容使用 Redis：

Redis on ffff65535

Spring cache + Redis LocalDateTime反序列化

nextcloud配置缓存

小型/私人家庭服务器

小型组织，单服务器设置

大型组织，集群设置