springboot-cache+redis 为指定名称缓存设置独立超时时间

版本

spring-boot: 3.2.2

方案

注册 RedisCacheManagerBuilderCustomizer Bean对指定名称缓存进行定制

@Bean
RedisCacheManagerBuilderCustomizer redisCacheManagerBuilderCustomizer() {return builder -> builder.withCacheConfiguration(// @Cacheable 注解使用的cacheNames参数值CACHE_NAME_1,builder// 获取全局配置.cacheDefaults()// 在全局配置基础上添加超时时间配置.entryTtl(Duration.ofSeconds(60))).withCacheConfiguration(CACHE_NAME_2,builder.cacheDefaults().entryTtl(Duration.ofSeconds(60)));
}

源码

redis缓存管理器自动化配置
org.springframework.boot.autoconfigure.cache.RedisCacheConfiguration

...
@Conditional(CacheCondition.class)
class RedisCacheConfiguration {...@BeanRedisCacheManager cacheManager(CacheProperties cacheProperties, CacheManagerCustomizers cacheManagerCustomizers,ObjectProvider<org.springframework.data.redis.cache.RedisCacheConfiguration> redisCacheConfiguration,ObjectProvider<RedisCacheManagerBuilderCustomizer> redisCacheManagerBuilderCustomizers,RedisConnectionFactory redisConnectionFactory, ResourceLoader resourceLoader) {// 如果存在redisCacheConfiguration则使用redisCacheConfiguration，否则读取配置属性构造RedisCacheManagerBuilder builder = RedisCacheManager.builder(redisConnectionFactory).cacheDefaults(determineConfiguration(cacheProperties, redisCacheConfiguration, resourceLoader.getClassLoader()));// 使用上一步构造的默认配置初始化所有名称的缓存配置List<String> cacheNames = cacheProperties.getCacheNames();if (!cacheNames.isEmpty()) {builder.initialCacheNames(new LinkedHashSet<>(cacheNames));}if (cacheProperties.getRedis().isEnableStatistics()) {builder.enableStatistics();}// 应用redis缓存管理器定制器redisCacheManagerBuilderCustomizers.orderedStream().forEach((customizer) -> customizer.customize(builder));// 应用公共缓存管理器定制器return cacheManagerCustomizers.customize(builder.build());}...
}