spring Spring框架中的ehcache配置
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时间：2020-09-08 06:35:07 来源:igfitidea点击:
ehcache configuration in Spring framework
提问by user261002
I am trying to load some context from an RSS feed and pass it as a cache to the client using ehcache library in spring. here is my code :
我正在尝试从 RSS 提要加载一些上下文，并在 spring 中使用 ehcache 库将其作为缓存传递给客户端。这是我的代码：
import org.springframework.cache.annotation.Cacheable;
@Service
public class GlossaryReaderService {
@Cacheable(value = "glossaryList")
public List<Glossary> readGlossary(String url) {
XmlReader reader = null;
List<Glossary> extractedGlossay = new ArrayList<Glossary>();
SyndEntry entry;
SyndContent desc;
Glossary glossaryList = null;
try {
String decodedURL = URLDecoder.decode(url, "UTF-8");
reader = new XmlReader(new URL(decodedURL));
SyndFeed feed = new SyndFeedInput().build(reader);
for (Iterator i = feed.getEntries().iterator(); i.hasNext();) {
entry = (SyndEntry) i.next();
desc = entry.getDescription();
if (desc != null) { ...
extractedGlossay.add(glossaryList);
}
}
}
} catch (IOException | IllegalArgumentException | FeedException e) {
log.error("Error reading RSS feed", e);
} finally {
IOUtils.closeQuietly(reader);
}
return extractedGlossay;
}
also under at /webmi/src/main/resources/ehcache.xml I have the echahe.xml :
同样在 /webmi/src/main/resources/ehcache.xml 我有 echahe.xml ：
<?xml version="1.0" encoding="UTF-8"?>
<ehcache>
<defaultCache maxElementsInMemory="500" eternal="true"
overflowToDisk="false" memoryStoreEvictionPolicy="LFU" />
<cache name="info" maxElementsInMemory="500" eternal="true"
overflowToDisk="false" memoryStoreEvictionPolicy="LFU" />
</ehcache>
but the problem is that when I want to add the beans in the application-content it gives error. here is the partin application-content.xml :
但问题是，当我想在应用程序内容中添加 bean 时，它会出错。这是 partin application-content.xml ：
<!-- CACHE CONFIGURATION -->
<cache:annotation-driven />
<bean id="cacheManager"
class="org.springframework.cache.ehcache.EhCacheCacheManager"
p:cache-manager-ref="ehcache" />
<bean id="ehcache class="org.springframework.cache.ehcache.EhCacheManagerFactoryBean" p:config location="classpath:ehcache.xml" />
but it give me the following error:
但它给了我以下错误：
2014-02-26 16:56:47 [ERROR] ContextLoader - Context initialization failed
org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'org.springframework.cache.interceptor.CacheInterceptor#0': Cannot resolve reference to bean 'cacheManager' while setting bean property 'cacheManager'; nested exception is org.springframework.beans.factory.CannotLoadBeanClassException: Cannot find class [org.springframework.cache.ehcache.EhCacheCacheManager] for bean with name 'cacheManager' defined in class path resource [application-context.xml]; nested exception is java.lang.ClassNotFoundException: org.springframework.cache.ehcache.EhCacheCacheManager
at org.springframework.beans.factory.support.BeanDefinitionValueResolver.resolveReference(BeanDefinitionValueResolver.java:329)
at org.springframework.beans.factory.support.BeanDefinitionValueResolver.resolveValueIfNecessary(BeanDefinitionValueResolver.java:107)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.applyPropertyValues(AbstractAutowireCapableBeanFactory.java:1391)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:1132)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:522)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:461)
at org.springframework.beans.factory.support.AbstractBeanFactory.getObject(AbstractBeanFactory.java:295)
at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:223)
at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:292)
at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:194)
at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:626)
at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:932)
at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:479)
at org.springframework.web.context.ContextLoader.configureAndRefreshWebApplicationContext(ContextLoader.java:389)
at org.springframework.web.context.ContextLoader.initWebApplicationContext(ContextLoader.java:294)
at org.springframework.web.context.ContextLoaderListener.contextInitialized(ContextLoaderListener.java:112)
at org.apache.catalina.core.StandardContext.listenerStart(StandardContext.java:4939)
at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5434)
at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150)
at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1559)
at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1549)
at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:334)
at java.util.concurrent.FutureTask.run(FutureTask.java:166)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
at java.lang.Thread.run(Thread.java:724)
Caused by: org.springframework.beans.factory.CannotLoadBeanClassException: Cannot find class [org.springframework.cache.ehcache.EhCacheCacheManager] for bean with name 'cacheManager' defined in class path resource [application-context.xml]; nested exception is java.lang.ClassNotFoundException: org.springframework.cache.ehcache.EhCacheCacheManager
at org.springframework.beans.factory.support.AbstractBeanFactory.resolveBeanClass(AbstractBeanFactory.java:1266)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:438)
at org.springframework.beans.factory.support.AbstractBeanFactory.getObject(AbstractBeanFactory.java:295)
at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:223)
at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:292)
at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:194)
at org.springframework.beans.factory.support.BeanDefinitionValueResolver.resolveReference(BeanDefinitionValueResolver.java:323)
... 25 more
Caused by: java.lang.ClassNotFoundException: org.springframework.cache.ehcache.EhCacheCacheManager
at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1714)
at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1559)
at org.springframework.util.ClassUtils.forName(ClassUtils.java:260)
at org.springframework.beans.factory.support.AbstractBeanDefinition.resolveBeanClass(AbstractBeanDefinition.java:416)
at org.springframework.beans.factory.support.AbstractBeanFactory.doResolveBeanClass(AbstractBeanFactory.java:1287)
at org.springframework.beans.factory.support.AbstractBeanFactory.resolveBeanClass(AbstractBeanFactory.java:1258)
... 31 more
Feb 26, 2014 4:56:47 PM org.apache.catalina.core.StandardContext listenerStart
SEVERE: Exception sending context initialized event to listener instance of class org.springframework.web.context.ContextLoaderListener
org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'org.springframework.cache.interceptor.CacheInterceptor#0': Cannot resolve reference to bean 'cacheManager' while setting bean property 'cacheManager'; nested exception is org.springframework.beans.factory.CannotLoadBeanClassException: Cannot find class [org.springframework.cache.ehcache.EhCacheCacheManager] for bean with name 'cacheManager' defined in class path resource [application-context.xml]; nested exception is java.lang.ClassNotFoundException: org.springframework.cache.ehcache.EhCacheCacheManager
at org.springframework.beans.factory.support.BeanDefinitionValueResolver.resolveReference(BeanDefinitionValueResolver.java:329)
at org.springframework.beans.factory.support.BeanDefinitionValueResolver.resolveValueIfNecessary(BeanDefinitionValueResolver.java:107)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.applyPropertyValues(AbstractAutowireCapableBeanFactory.java:1391)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:1132)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:522)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:461)
at org.springframework.beans.factory.support.AbstractBeanFactory.getObject(AbstractBeanFactory.java:295)
at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:223)
at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:292)
at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:194)
at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:626)
at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:932)
at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:479)
at org.springframework.web.context.ContextLoader.configureAndRefreshWebApplicationContext(ContextLoader.java:389)
at org.springframework.web.context.ContextLoader.initWebApplicationContext(ContextLoader.java:294)
at org.springframework.web.context.ContextLoaderListener.contextInitialized(ContextLoaderListener.java:112)
at org.apache.catalina.core.StandardContext.listenerStart(StandardContext.java:4939)
at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5434)
at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150)
at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1559)
at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1549)
at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:334)
at java.util.concurrent.FutureTask.run(FutureTask.java:166)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
at java.lang.Thread.run(Thread.java:724)
I have been working on this the whole day, but I dont dont know what is the problem. please if anybody know the answer, help !!!
我一整天都在研究这个，但我不知道是什么问题。有知道的朋友帮忙解答一下！！！
Edit:I have added the spring-contect-support, here is the dependencies in the Pom :
编辑：我添加了 spring-contect-support，这里是 Pom 中的依赖项：
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-context-support</artifactId>
<version>4.0.1.RELEASE</version>
</dependency>
<!-- Ehcache -->
<dependency>
<groupId>net.sf.ehcache</groupId>
<artifactId>ehcache</artifactId>
<version>2.8.1</version>
</dependency>
but the error has been changed to the following :
但错误已更改为以下内容：
SEVERE: Servlet.service() for servlet [default-dispatcher] in context with path [/webmi] threw exception [Request processing failed; nested exception is java.lang.IllegalArgumentException: Cannot find cache named [glossaryList] for CacheableOperation[public java.util.List com.service.GlossaryReaderService.readGlossary(java.lang.String)] caches=[glossaryList] | condition='' | key=''] with root cause
java.lang.IllegalArgumentException: Cannot find cache named [glossaryList] for CacheableOperation[public java.util.List com.service.GlossaryReaderService.readGlossary(java.lang.String)] caches=[glossaryList] | condition='' | key=''
at org.springframework.cache.interceptor.CacheAspectSupport.getCaches(CacheAspectSupport.java:163)
at org.springframework.cache.interceptor.CacheAspectSupport$CacheOperationContext.<init>(CacheAspectSupport.java:443)
at org.springframework.cache.interceptor.CacheAspectSupport.getOperationContext(CacheAspectSupport.java:173)
at org.springframework.cache.interceptor.CacheAspectSupport.createOperationContext(CacheAspectSupport.java:404)
at org.springframework.cache.interceptor.CacheAspectSupport.execute(CacheAspectSupport.java:192)
at org.springframework.cache.interceptor.CacheInterceptor.invoke(CacheInterceptor.java:66)
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)
at org.springframework.aop.framework.CglibAopProxy$DynamicAdvisedInterceptor.intercept(CglibAopProxy.java:631)
at com.lloydsbanking.webmi.service.GlossaryReaderService$$EnhancerByCGLIB$769e11.readGlossary(<generated>)
at com.webmi.web.RssController.getGlossory(RssController.java:50)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
回答by Stephane Nicoll
This class is located in the spring-context-supportmodule that is optional. Please make sure that you have added it as a dependency of your project.
此类位于spring-context-support可选的模块中。请确保您已将其添加为项目的依赖项。
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-context-support</artifactId>
<version>X.Y.Z.RELEASE</version>
</dependency>
回答by Peter
Your spring configuration is excellent, i see examples with lots of typos on the web.
你的弹簧配置非常好，我在网上看到很多错别字的例子。
<bean id="cacheManager" class="org.springframework.cache.ehcache.EhCacheCacheManager" p:cache-manager-ref="ehcache" />
<bean id="ehcache" class="org.springframework.cache.ehcache.EhCacheManagerFactoryBean" p:configLocation="/WEB-INF/ehcache.xml" />
Remark: you need both dependencies:
备注：您需要两个依赖项：
<dependency>
<groupId>net.sf.ehcache</groupId>
<artifactId>ehcache</artifactId>
<version>2.8.3</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-context-support</artifactId>
<version>3.2.8.RELEASE</version>
</dependency>
first one is implementation second one is spring wrapper around it. If you don't use both you will have exceptions related to finding implementing class.
第一个是实现，第二个是围绕它的弹簧包装器。如果您不同时使用两者，则会出现与查找实现类相关的异常。
回答by topcoder1306
Use below maven dependency in your pom.xml
在 pom.xml 中使用以下 maven 依赖项
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-context</artifactId>
<scope>compile</scope>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-context-support</artifactId>
<version>4.3.4.RELEASE</version>
</dependency>
Also, make sure that you use version 4.3.4. Don't use 5.0.6 and other latest version, It didn't work for me.
另外，请确保您使用版本 4.3.4。不要使用 5.0.6 和其他最新版本，它对我不起作用。
