simple-spring-memcached升级到4.1.1导致WrappedCacheException

Question

我最近将simple-spring-memcached从版本3.6.1升级到了4.1.1。然而，在这个版本升级之后，每当我的代码试图从缓存中获取一个值时，我都会得到WrappedCacheException。我在下面分享我的代码片段：

@Transactional
@Cacheable(value = CACHE_NAME, key = "#id")
@Override
public TicketModel validate(final String id) {
    TicketEntity ticketEntity = ticketEntityRepository.findOne(id);
    if (ticketEntity == null) {
        System.out.println("Ticket not found")
    }
    return something;
}

我的cacheManager bean看起来像这样：

@Bean
public CacheManager cacheManager() throws Exception {
    List<SSMCache> cacheList = new ArrayList<>();

    CacheFactory cacheFactory;
    if (ELASTIC_CACHE_FACTORY.equals(cacheBean)) {
        cacheFactory = elastiCacheFactory();
    } else {
        cacheFactory = memCacheFactory();
    }

    Cache cache = cacheFactory.getObject();

    SSMCache aamCache = new SSMCache(cache, cacheTimeout, true);
    cacheList.add(aamCache);

    SSMCacheManager cacheManager = new SSMCacheManager();
    cacheManager.setCaches(cacheList);
    cacheManager.afterPropertiesSet();
    return cacheManager;
}

我得到的确切异常如下所示：

    SEVERE: Servlet.service() for servlet [jersey-servlet] in context with path [/user-service-web] threw exception [com.google.code.ssm.spring.WrappedCacheException] with root cause
com.google.code.ssm.spring.WrappedCacheException
    at com.google.code.ssm.spring.SSMCache.logOrThrow(SSMCache.java:318)
    at com.google.code.ssm.spring.SSMCache.getValue(SSMCache.java:285)
    at com.google.code.ssm.spring.SSMCache.get(SSMCache.java:117)
    at org.springframework.cache.interceptor.AbstractCacheInvoker.doGet(AbstractCacheInvoker.java:68)
    at org.springframework.cache.interceptor.CacheAspectSupport.findInCaches(CacheAspectSupport.java:469)
    at org.springframework.cache.interceptor.CacheAspectSupport.findCachedItem(CacheAspectSupport.java:435)
    at org.springframework.cache.interceptor.CacheAspectSupport.execute(CacheAspectSupport.java:336)
    at org.springframework.cache.interceptor.CacheAspectSupport.execute(CacheAspectSupport.java:302)
    at org.springframework.cache.interceptor.CacheInterceptor.invoke(CacheInterceptor.java:61)
    at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:179)
    at org.springframework.transaction.interceptor.TransactionInterceptor$1.proceedWithInvocation(TransactionInterceptor.java:99)
    at org.springframework.transaction.interceptor.TransactionAspectSupport.invokeWithinTransaction(TransactionAspectSupport.java:281)
    at org.springframework.transaction.interceptor.TransactionInterceptor.invoke(TransactionInterceptor.java:96)
    at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:179)
    at org.springframework.aop.framework.CglibAopProxy$DynamicAdvisedInterceptor.intercept(CglibAopProxy.java:655)

只要调用findOne(id)方法，我就会得到WrappedCacheException，代码就会失败。请帮帮忙。

Answer 1

在4.0.0之前，从底层缓存/客户端层(例如IOExceptions等)抛出的异常被SsmCache对象吃掉。在4.0.0之后，默认情况下，这些都会抛给调用者。您可以通过将SsmCache bean上的"muteExceptions“标志设置为true来恢复到以前的行为。