CacheStatistics,CacheManager=urn.X-ehcache.jsr107-default-config,Cache=studentCache
Registering Ehcache MBean javax.cache:type=CacheStatistics,CacheManager=urn.X-ehcache.jsr107-default-config,Cache=studentCache
我有一个事件记录器,但我没有看到任何输出:
@Component
public class EventLogger implements CacheEventListener<Object, Object> {
private static final Logger LOGGER = LoggerFactory.getLogger(EventLogger.class);
@Override
public void onEvent(CacheEvent<?, ?> event) {
LOGGER.info("Event: " + event.getType() + " Key: " + event.getKey() + " old value: " + event.getOldValue() + " new value: " + event.getNewValue());
}
}
缓存配置
@Configuration
public class CacheConfig {
@Bean
public JCacheManagerCustomizer cacheManagerCustomizer() {
return new JCacheManagerCustomizer() {
@Override
public void customize(CacheManager cacheManager) {
cacheManager.createCache("studentCache", new MutableConfiguration<>()
.setExpiryPolicyFactory(CreatedExpiryPolicy.factoryOf(new Duration(TimeUnit.MINUTES, 5)))
.setStoreByValue(false)
.setStatisticsEnabled(true));
}
};
}
}
在方法上缓存
@RequestMapping(method = GET)
@ResponseBody
Cacheable(value = "studetNode")
public List<StudentNodeDto> findAll(HttpServletResponse response) {
val studentNodes = service.findAll();
ehcache.xml位于资源下
<config
xmlns:xsi='http://www.w3.org/2001/XMLSchema-instance'
xmlns='http://www.ehcache.org/v3'
xmlns:jsr107='http://www.ehcache.org/v3/jsr107'>
<service>
<jsr107:defaults>
<jsr107:cache name="studentCache" template="heap-cache"/>
</jsr107:defaults>
</service>
<cache-template name="heap-cache">
<listeners>
<listener>
<class>org.terracotta.ehcache.EventLogger</class>
<event-firing-mode>ASYNCHRONOUS</event-firing-mode>
<event-ordering-mode>UNORDERED</event-ordering-mode>
<events-to-fire-on>CREATED</events-to-fire-on>
<events-to-fire-on>UPDATED</events-to-fire-on>
<events-to-fire-on>EXPIRED</events-to-fire-on>
<events-to-fire-on>REMOVED</events-to-fire-on>
<events-to-fire-on>EVICTED</events-to-fire-on>
</listener>
</listeners>
<resources>
<heap unit="entries">2000</heap>
<offheap unit="MB">100</offheap>
</resources>
</cache-template>
</config>
Gradle依赖项 springBootVersion = '2.0.2.RELEASE'
compile group: 'org.springframework.boot', name: 'spring-boot-starter', version: springBootVersion
compile group: 'org.springframework.boot', name: 'spring-boot-starter-web', version: springBootVersion
//Cache
compile group: 'org.springframework.boot', name: 'spring-boot-starter-cache', version: '2.1.1.RELEASE'
compile group: 'org.ehcache', name: 'ehcache', version: '3.4.0'
compile group: 'javax.cache', name: 'cache-api', version: '1.1.0'
我查看了许多帖子和博客,似乎我做得很正确,但我肯定哪里错了。
https://docs.spring.io/spring/docs/current/spring-framework-reference/integration.html#cache
https://www.baeldung.com/spring-cache-tutorial
https://docs.spring.io/spring-boot/docs/current/reference/html/boot-features-caching.html
https://www.baeldung.com/hibernate-second-level-cache
https://medium.com/@igorkosandyak/spring-boot-caching-d74591abe117
我需要建议吗?
---------------更新1-----------------
我收到一个错误消息,内容如下:
Error creating bean with name 'cacheManager' defined in class path
resource
[org/springframework/boot/autoconfigure/cache/JCacheCacheConfiguration.class]: Unsatisfied dependency expressed through method 'cacheManager' parameter 0; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'jCacheCacheManager' defined in class path resource [org/springframework/boot/autoconfigure/cache/JCacheCacheConfiguration.class]: Bean instantiation via factory method failed; nested exception is org.springframework.beans.BeanInstantiationException: Failed to instantiate [javax.cache.CacheManager]: Factory method 'jCacheCacheManager' threw exception; nested exception is org.ehcache.jsr107.MultiCacheException: [Exception 0] org.terracotta.ehcache.EventLogger
当我添加了这个时,就会得到这个:
# caching
spring.cache.jcache.provider=org.ehcache.jsr107.EhcacheCachingProvider
spring.cache.jcache.config=classpath:ehcache.xml
追踪
restartedMain] heConfiguration$JCacheAvailableCondition : Condition JCacheCacheConfiguration.JCacheAvailableCondition on org.springframework.boot.autoconfigure.cache.JCacheCacheConfiguration matched due to AnyNestedCondition 1 matched 1 did not; NestedCondition on JCacheCacheConfiguration.JCacheAvailableCondition.CustomJCacheCacheManager @ConditionalOnSingleCandidate (types: javax.cache.CacheManager; SearchStrategy: all) did not find any beans; NestedCondition on JCacheCacheConfiguration.JCacheAvailableCondition.JCacheProvider JCache JCache provider specified
-------------- 更新 2------------------
我在我的gradle文件中添加了以下内容
task showJarLocations {
doLast {
configurations.compile.resolve().each { file ->
println file.canonicalPath
}
}
}
而且唯一显示ehcache的jar是:
/org.ehcache/ehcache/3.4.0/cac1f0840af0040a81401dfa55fa31a4ccc17932/ehcache-3.4.0.jar
and
javax.cache/cache-api/1.1.0/77bdcff7814076dfa61611b0db88487c515150b6/cache-api-1.1.0.jar
我有
spring.cache.jcache.provider=org.ehcache.jsr107.EhcacheCachingProvider
spring.cache.jcache.config=classpath:ehcache.xml
在
application.properties
文件中也需要添加。这可以解释为什么当我添加 spring.cache.jcache.config=classpath:ehcache.xml
时会失败。但是在 IntelliJ 中,它在我的项目结构中:
+--- org.springframework.boot:spring-boot-starter-cache:2.1.1.RELEASE
| +--- org.springframework.boot:spring-boot-starter:2.1.1.RELEASE -> 2.0.2.RELEASE (*)
| \--- org.springframework:spring-context-support:5.1.3.RELEASE -> 5.0.6.RELEASE
| +--- org.springframework:spring-beans:5.0.6.RELEASE (*)
| +--- org.springframework:spring-context:5.0.6.RELEASE (*)
| \--- org.springframework:spring-core:5.0.6.RELEASE (*)
+--- org.ehcache:ehcache:3.4.0
| \--- org.slf4j:slf4j-api:1.7.7 -> 1.7.25
+--- javax.cache:cache-api:1.1.0
+--- org.apache.tika:tika-core:1.19.1
+--- org.mapstruct:mapstruct-jdk8:1.2.0.Final
+--- org.projectlombok:lombok:1.18.2
spring.cache.jcache.provider=org.ehcache.jsr107.EhcacheCachingProvider spring.cache.jcache.config=classpath:ehcache.xml
- pcoateslogging.level.org.springframework.boot.autoconfigure.cache=trace
和logging.level.org.ehcache=trace
,请检查日志是否有更多信息。 - pcoates@EnableCaching
。可能值得发布你在主应用程序上拥有的注释和完整的依赖项集,以防有什么阻碍。我注意到你的帖子中有Cacheable(value = "studetNode")
,我认为这是一个打字错误,应该是studentNode,并且注释需要一个@
。 - pcoates