spring-boot - 无法在 spring boot 应用程序中为构建器找到名为 xxx 的缓存

Question

我有一个 Spring Boot 应用程序，我想在存储库方法上使用 spring bot 缓存。我在 Spring Boot 应用程序中指定了 @EnableCaching annotaion，当我尝试在我的存储库方法上使用 @Cacheable 注释时，它会引发错误，例如

java.lang.IllegalArgumentException: Cannot find cache named 'cache' for Builder[public abstract java.util.Optional myRepoMethod(java.lang.String,java.lang.String)] caches=[cache] | key='' | keyGenerator='' | cacheManager='' | cacheResolver='' | condition='' | unless='' | sync='false' at org.springframework.cache.interceptor.AbstractCacheResolver.resolveCaches(AbstractCacheResolver.java:84) ~[spring-context-5.0.6.RELEASE.jar:5.0.6.RELEASE] at org.springframework.cache.interceptor.CacheAspectSupport.getCaches(CacheAspectSupport.java:224) ~[spring-context-5.0.6.RELEASE.jar:5.0.6.RELEASE] at org.springframework.cache.interceptor.CacheAspectSupport$CacheOperationContext.(CacheAspectSupport.java:669) ~[spring-context-5.0.6.RELEASE.jar:5.0.6.RELEASE] at org.springframework.cache.interceptor.CacheAspectSupport.getOperationContext(CacheAspectSupport.java:237) ~[spring-context-5.0.6.RELEASE.jar:5.0.6.RELEASE] at org.springframework.cache.interceptor.CacheAspectSupport$CacheOperationContexts.(CacheAspectSupport.java:570) ~[spring-context-5.0.6.RELEASE.jar:5.0.6.RELEASE] at org.springframework.cache.interceptor.CacheAspectSupport.execute(CacheAspectSupport.java:317) ~[spring-context-5.0.6.RELEASE.jar:5.0.6.RELEASE] at org.springframework.cache.interceptor.CacheInterceptor.invoke(CacheInterceptor.java:61) ~[spring-context-5.0.6.RELEASE.jar:5.0.6.RELEASE] at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:185) ~[spring-aop-5.0.6.RELEASE.jar:5.0.6.RELEASE] at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:212) ~[spring-aop-5.0.6.RELEASE.jar:5.0.6.RELEASE] at com.sun.proxy.$Proxy140.findByUserIdAndProduct(Unknown Source) ~[?:?]

我不知道我错过了哪里!!

我的存储库方法看起来像，

@Cacheable("cache")
Optional<ModelClass> findByUserIdAndProduct(String userId, String product);

Answer 1

因为你不加

@Bean
public CacheManager cacheManager() {
    SimpleCacheManager cacheManager = new SimpleCacheManager();
    List<CaffeineCache> caffeineCaches = new ArrayList<>();
    for (CacheConstant cacheType : CacheConstant.values()) {
        caffeineCaches.add(new CaffeineCache(cacheType.toString(),
                Caffeine.newBuilder()
                        .expireAfterWrite(cacheType.getExpires(), TimeUnit.SECONDS)
                        .maximumSize(cacheType.getMaximumSize())
                        .build()));
    }
    cacheManager.setCaches(caffeineCaches);
    return cacheManager;
}