在Spring Boot应用程序中找不到builder的名为xxx的缓存

Question

我有一个Spring boot应用程序，我想在它的存储库方法上使用Spring bot cache。我在Spring boot应用程序中指定了@enablecaching annotaion，当我试图在我的存储库方法上使用@cacheable annotation时，它会抛出如下错误

java.lang.IllegalArgumentException：找不到Builder的名为“cache”的缓存[public abstract java.util.optional myRepoMethod（java.lang.String,java.lang.String)]caches=[cache]key='keyGenerator=''cacheManager=''cacheSolver='condition='unless='sync='false'在org.springframework.cache.interceptor.abstractcacheSolver.resolveChaches(abstractCacheSolver.java:84)~[spring-context-5.0.6.release.jar:5.0.6.release]在AcheaSpectSupport.java:224)~[spring-context-5.0.6.release.jar:5.0.6.release]在org.springframework.cache.interceptor.cacheaSpectSupport.java:669)~[spring-context-5.0.6.release.jar:5.0.6.release]在org.springframework.cache.interceptor.getoperationcontext.cacheaSpectSupport.java:237)~[spring-context-5.0.6.release.jar:5.0.6.release]在org.springframework.cache.interceptor.getoperationcontext在CacheAspectSupport$CacheOperationContexts。（CacheAspectSupport.java:570)~[spring-context-5.0.6.release.jar:5.0.6.release.jar:5.0.6.release]在org.springframework.cache.interceptor.cacheaspectsupport.execute(cacheaspectsupport.java:317)~[spring-context-5.0.6.release]在org.springframework.cache.interceptor.cacheinterceptor.invoke(cacheinterceptor.java:61)~[spring-context-5.0.6.release]在java:185)~[spring-aop-5.0.6.release.jar:5.0.6.release]在org.springframework.aop.framework.jdkdynamicaopproxy.java:212)~[spring-aop-5.0.6.release.jar:5.0.6.release]在com.sun.proxy.$proxy140.findByUserIdandProduct（未知源）~[？：？]

我不知道我错过了什么地方！！

我的存储库方法看起来像是,

@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;
}