解决springCache配置中踩的坑

  @Bean
    public CacheManager cacheManager(RedisConnectionFactory factory, SessionSerializer serializer) {
        logger.debug("生成缓存管理器");
        logger.debug("注入的序列化工具={}", serializer);
        RedisSerializationContext.SerializationPair pair = RedisSerializationContext.SerializationPair.fromSerializer(serializer);
        logger.debug("生成的cache序列化工具={}", pair);
        RedisCacheConfiguration config = RedisCacheConfiguration.defaultCacheConfig();  // 生成一个默认配置，通过config对象即可对缓存进行自定义配置
        config = config.entryTtl(Duration.ofMinutes(10))     // 设置缓存的默认过期时间，也是使用Duration设置
                .serializeValuesWith(pair)
//                .serializeKeysWith(RedisSerializationContext.SerializationPair.fromSerializer(new StringRedisSerializer()))
                .disableCachingNullValues()
        ;     // 不缓存空值
        logger.debug("初始化完成的config={}", config);
        // 设置一个初始化的缓存空间set集合
        Set<String> cacheNames = new HashSet<>();
        cacheNames.add(CACHE_NAME);
        return RedisCacheManager.builder(new CusTtlRedisCacheWriter(factory))     // 使用自定义的缓存配置初始化一个cacheManager
                .cacheDefaults(config)//这一句必须要最先执行，否则实际运行时使用的是defaultConfig
                .initialCacheNames(cacheNames)
//                .withInitialCacheConfigurations(configMap)
//                .transactionAware()
                .build();
    }

<beans xmlns="http://www.springframework.org/schema/beans" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
  xmlns:cache="http://www.springframework.org/schema/cache"
   xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsdhttp://www.springframework.org/schema/cache http://www.springframework.org/schema/cache/spring-cache.xsd">
  
    <cache:annotation-driven />
　　<!-- 定义缓存管理 -->
    <bean id="cacheManager" class="org.springframework.cache.support.SimpleCacheManager">
        <property name="caches">
            <set>
                <bean class="org.springframework.cache.concurrent.ConcurrentMapCacheFactoryBean"
                      p:name="default"/>
                <bean class="org.springframework.cache.concurrent.ConcurrentMapCacheFactoryBean"
                      p:name="activityCache"/>
                <bean class="org.springframework.cache.concurrent.ConcurrentMapCacheFactoryBean"
                      p:name="awardsCache"/>
            </set>
        </property>
    </bean>

//@Service
//public class LotteryActivityServiceImpl implements LotteryActivityService
@Cacheable(value = "activityCache", key = "#shortName")
public LotteryActivity findByShortName(String shortName) {
    log.info("query activity : {} from database.", shortName);
    return activityRepository.findByShortName(shortName);
}

@CacheEvict(value="activityCache", allEntries = true, beforeInvocation = true)
public void cleanActivityCache(String shortName) {
    log.info("cleaned cache activity : {}", shortName);
}

@CachePut(value="accountCache",key="#account.getName()")// 更新 accountCache 缓存
 public Account updateAccount(Account account) { 
   return updateDB(account); 
 }