Springboot和Ehcache-MultiCacheException [英] Springboot and Ehcache - MultiCacheException
问题描述
我正在尝试向springboot应用程序添加缓存，但遇到一个问题，即在启动过程中引发了org.ehcache.jsr107.MultiCacheException异常。
I'm trying to add caching to a springboot application and I am running into an issue where a org.ehcache.jsr107.MultiCacheException exception is being thrown during startup.
我正在使用以下命令（全部通过Maven pom文件加载）：
Springboot 1.5.5，Ehcache 3.3.1，Javax cache 1.0.0
I am using the following ( all loaded via Maven pom file): Springboot 1.5.5, Ehcache 3.3.1, Javax cache 1.0.0
我的SpringBootApplication看起来像这样：
My SpringBootApplication looks like this:
@SpringBootApplication
@EnableCaching
public class DemoApplication {
public static void main(String[] args) {
SpringApplication.run(DemoApplication.class, args);
}
}
我有一个CacheConfig类，其中包含以下内容：
I have a CacheConfig class that contains the following:
@Component
public class CacheConfig implements JCacheManagerCustomizer{
@Override
public void customize(javax.cache.CacheManager cacheManager) {
cacheManager.createCache("item", new MutableConfiguration<>()
.setExpiryPolicyFactory(CreatedExpiryPolicy.factoryOf(new Duration(TimeUnit.MINUTES, 5)))
.setStoreByValue(false)
.setStatisticsEnabled(true));
}
}
我的ehcache.xml文件包含：
And my ehcache.xml file contains:
<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="item" 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>
测试项目服务包含：
@Service
public class ItemService {
@CacheResult(cacheName = "item")
public String getItem(int itemNumber) {
switch (itemNumber) {
case 1:
return "Item 1";
case 2:
return "Item 2";
default:
return "No Item";
}
}
}
最后，application.properties包含：
And finally, the application.properties contains:
spring.cache.jcache.config=classpath:ehcache.xml
运行应用程序时，出现以下异常，结尾为：
When I run the application, I get the following exceptions ending with:
Caused by: 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
at org.springframework.beans.factory.support.ConstructorResolver.instantiateUsingFactoryMethod(ConstructorResolver.java:599) ~[spring-beans-4.3.10.RELEASE.jar:4.3.10.RELEASE]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.instantiateUsingFactoryMethod(AbstractAutowireCapableBeanFactory.java:1173) ~[spring-beans-4.3.10.RELEASE.jar:4.3.10.RELEASE]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBeanInstance(AbstractAutowireCapableBeanFactory.java:1067) ~[spring-beans-4.3.10.RELEASE.jar:4.3.10.RELEASE]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:513) ~[spring-beans-4.3.10.RELEASE.jar:4.3.10.RELEASE]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:483) ~[spring-beans-4.3.10.RELEASE.jar:4.3.10.RELEASE]
at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:306) ~[spring-beans-4.3.10.RELEASE.jar:4.3.10.RELEASE]
at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:230) ~[spring-beans-4.3.10.RELEASE.jar:4.3.10.RELEASE]
at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:302) ~[spring-beans-4.3.10.RELEASE.jar:4.3.10.RELEASE]
at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:202) ~[spring-beans-4.3.10.RELEASE.jar:4.3.10.RELEASE]
at org.springframework.beans.factory.config.DependencyDescriptor.resolveCandidate(DependencyDescriptor.java:208) ~[spring-beans-4.3.10.RELEASE.jar:4.3.10.RELEASE]
at org.springframework.beans.factory.support.DefaultListableBeanFactory.doResolveDependency(DefaultListableBeanFactory.java:1138) ~[spring-beans-4.3.10.RELEASE.jar:4.3.10.RELEASE]
at org.springframework.beans.factory.support.DefaultListableBeanFactory.resolveDependency(DefaultListableBeanFactory.java:1066) ~[spring-beans-4.3.10.RELEASE.jar:4.3.10.RELEASE]
at org.springframework.beans.factory.support.ConstructorResolver.resolveAutowiredArgument(ConstructorResolver.java:835) ~[spring-beans-4.3.10.RELEASE.jar:4.3.10.RELEASE]
at org.springframework.beans.factory.support.ConstructorResolver.createArgumentArray(ConstructorResolver.java:741) ~[spring-beans-4.3.10.RELEASE.jar:4.3.10.RELEASE]
... 70 common frames omitted
Caused by: 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
at org.springframework.beans.factory.support.SimpleInstantiationStrategy.instantiate(SimpleInstantiationStrategy.java:189) ~[spring-beans-4.3.10.RELEASE.jar:4.3.10.RELEASE]
at org.springframework.beans.factory.support.ConstructorResolver.instantiateUsingFactoryMethod(ConstructorResolver.java:588) ~[spring-beans-4.3.10.RELEASE.jar:4.3.10.RELEASE]
... 83 common frames omitted
Caused by: org.ehcache.jsr107.MultiCacheException: [Exception 0] org.terracotta.ehcache.EventLogger
at org.ehcache.jsr107.ConfigurationMerger.mergeConfigurations(ConfigurationMerger.java:138) ~[ehcache-3.3.1.jar:3.3.1 01f4b2121ef38b7e7d95c952c773881d5b1051d8]
at org.ehcache.jsr107.Eh107CacheManager.createCache(Eh107CacheManager.java:190) ~[ehcache-3.3.1.jar:3.3.1 01f4b2121ef38b7e7d95c952c773881d5b1051d8]
at com.example.cacheexample.CacheConfig.customize(CacheConfig.java:18) ~[classes/:na]
at org.springframework.boot.autoconfigure.cache.JCacheCacheConfiguration.customize(JCacheCacheConfiguration.java:149) ~[spring-boot-autoconfigure-1.5.5.RELEASE.jar:1.5.5.RELEASE]
at org.springframework.boot.autoconfigure.cache.JCacheCacheConfiguration.jCacheCacheManager(JCacheCacheConfiguration.java:104) ~[spring-boot-autoconfigure-1.5.5.RELEASE.jar:1.5.5.RELEASE]
at org.springframework.boot.autoconfigure.cache.JCacheCacheConfiguration$$EnhancerBySpringCGLIB$$e218d7d3.CGLIB$jCacheCacheManager$1(<generated>) ~[spring-boot-autoconfigure-1.5.5.RELEASE.jar:1.5.5.RELEASE]
at org.springframework.boot.autoconfigure.cache.JCacheCacheConfiguration$$EnhancerBySpringCGLIB$$e218d7d3$$FastClassBySpringCGLIB$$b2f1636b.invoke(<generated>) ~[spring-boot-autoconfigure-1.5.5.RELEASE.jar:1.5.5.RELEASE]
at org.springframework.cglib.proxy.MethodProxy.invokeSuper(MethodProxy.java:228) ~[spring-core-4.3.10.RELEASE.jar:4.3.10.RELEASE]
at org.springframework.context.annotation.ConfigurationClassEnhancer$BeanMethodInterceptor.intercept(ConfigurationClassEnhancer.java:358) ~[spring-context-4.3.10.RELEASE.jar:4.3.10.RELEASE]
at org.springframework.boot.autoconfigure.cache.JCacheCacheConfiguration$$EnhancerBySpringCGLIB$$e218d7d3.jCacheCacheManager(<generated>) ~[spring-boot-autoconfigure-1.5.5.RELEASE.jar:1.5.5.RELEASE]
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[na:1.8.0_121]
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[na:1.8.0_121]
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[na:1.8.0_121]
at java.lang.reflect.Method.invoke(Method.java:498) ~[na:1.8.0_121]
at org.springframework.beans.factory.support.SimpleInstantiationStrategy.instantiate(SimpleInstantiationStrategy.java:162) ~[spring-beans-4.3.10.RELEASE.jar:4.3.10.RELEASE]
... 84 common frames omitted
我不确定该去哪里因为我几乎复制了在此网站上找到的内容：
http://www.ehcache.org/blog/2016/05/18/ehcache3_jsr107_spring.html
I'm not certain where to go with this as I pretty much replicated what was found on this site: http://www.ehcache.org/blog/2016/05/18/ehcache3_jsr107_spring.html
任何见识将不胜感激。
谢谢。
推荐答案
结果是org.terracotta.ehcache.EventLogger ehcache.xml文件中定义的class只是示例记录器，用于上面博客文章中定义的测试程序。程序包名称使我相信它是ehcache发行版的一部分。
Turns out that the org.terracotta.ehcache.EventLogger class as defined in the ehcache.xml file was just an example logger for the purpose of the test program defined in blog post above. The package name lead me to believe it was a part of the ehcache distribution.
当我单步执行代码时，我看到正在生成NoClassDefFoundError异常，并导致抛出MultiCacheException。堆栈轨迹中没有任何东西清楚地表明NoClassDefFoundError是真正的罪魁祸首。我创建了自己的EventLogger，现在一切正常。
When I stepped through the code, I saw a NoClassDefFoundError exception was being generated, and resulted in the MultiCacheException being thrown. Nothing in the stack track made it clear that a NoClassDefFoundError was the real culprit. I created my own EventLogger and everything is working as expected now.
感谢指针！
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