Spring Ehcache MBean Monitoring

Question

我使用的是Spring 4.0.3.RELEASE和EHcache 2.8.1。关于JBoss 7.1.1

使用applicationContext.xml中的以下配置，我的缓存运行良好。

<cache:annotation-driven/>
<bean id="cacheManager" class="org.springframework.cache.ehcache.EhCacheCacheManager">
   <property name="cacheManager" ref="ehcache"/>
</bean>
<bean id="ehcache" class="org.springframework.cache.ehcache.EhCacheManagerFactoryBean">
   <property name="configLocation" value="/WEB-INF/ehcache.xml"/>
</bean>

现在我想添加MBean的监控功能。我对applicationContext.xml中的配置进行了如下更改——添加了两个新的bean"managementService"one_answers"mbeanServer"，没有其他更改。这是当前配置。

<cache:annotation-driven/>
<bean id="managementService"
        class="net.sf.ehcache.management.ManagementService"
        init-method="init"
        destroy-method="dispose">
        <constructor-arg ref="cacheManager"/>
        <constructor-arg ref="mbeanServer"/>
        <constructor-arg index="2" value="true"/>
        <constructor-arg index="3" value="true"/>
        <constructor-arg index="4" value="true"/>
        <constructor-arg index="5" value="true"/>
 </bean>
<bean id="cacheManager" class="org.springframework.cache.ehcache.EhCacheCacheManager">
   <property name="cacheManager" ref="ehcache"/>
</bean>
<bean id="ehcache" class="org.springframework.cache.ehcache.EhCacheManagerFactoryBean">
   <property name="configLocation" value="/WEB-INF/ehcache.xml"/>
</bean>    
<bean id="mbeanServer" class="org.springframework.jmx.support.MBeanServerFactoryBean">
    <property name="locateExistingServerIfPossible" value="true"/>
</bean>

使用此配置，我在启动应用程序服务器时会出现以下错误。

14:05:32,208 ERROR [org.springframework.web.context.ContextLoader] (MSC service thread 1-1) Context initialization failed: org.springframework.beans.factory.UnsatisfiedDependencyException: **Error creating bean with name 'managementService'** defined in ServletContext resource [/WEB-INF/applicationContext.xml]: Unsatisfied dependency expressed through constructor argument with index 0 of type [net.sf.ehcache.CacheManager]: Could not convert constructor argument value of type [org.springframework.cache.ehcache.EhCacheCacheManager] to required type [net.sf.ehcache.CacheManager]: Failed to convert value of type 'org.springframework.cache.ehcache.EhCacheCacheManager' to required type 'net.sf.ehcache.CacheManager'; nested exception is java.lang.IllegalStateException: **Cannot convert value of type [org.springframework.cache.ehcache.EhCacheCacheManager] to required type [net.sf.ehcache.CacheManager]**: no matching editors or conversion strategy found
Related cause: org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'managementService' defined in ServletContext resource [/WEB-INF/applicationContext.xml]: Unsatisfied dependency expressed through constructor argument with index 0 of type [net.sf.ehcache.CacheManager]: Could not convert constructor argument value of type [org.springframework.cache.ehcache.EhCacheCacheManager] to required type [net.sf.ehcache.CacheManager]: Failed to convert value of type 'org.springframework.cache.ehcache.EhCacheCacheManager' to required type 'net.sf.ehcache.CacheManager'; nested exception is java.lang.IllegalStateException: Cannot convert value of type [org.springframework.cache.ehcache.EhCacheCacheManager] to required type [net.sf.ehcache.CacheManager]: no matching editors or conversion strategy found

Answer 1

您应该将ehcachebean传递给managementServicebean的构造函数，而不是cacheManager。如果查看cacheManager的定义，则ehcache bean将作为cacheManager传递。工厂bean将提供一个net.sf.ehcache.CacheManager的实例。