SpringMVC + Mybatis + Shiro + ehcache时缓存管理器报错。

org.springframework.beans.factory.BeanCreationException: Error creating bean with name ‘shiroFilter‘ defined in class path resource [spring/spring-shiro-web.xml]: Cannot resolve reference to bean ‘securityManager‘ while setting bean property ‘securityManager‘;
nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name ‘securityManager‘ defined in class path resource [spring/spring-shiro-web.xml]: Cannot resolve reference to bean ‘userRealm‘ while setting bean property
‘realm‘; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name ‘userRealm‘ defined in class path resource [spring/spring-shiro-web.xml]: Cannot resolve reference to bean ‘credentialsMatcher‘ while setting
bean property ‘credentialsMatcher‘; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name ‘credentialsMatcher‘ defined in class path resource [spring/spring-shiro-web.xml]: Cannot resolve reference to bean
‘shiroCacheManager‘ while setting constructor argument; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name ‘shiroCacheManager‘ defined in class path resource [spring/spring-shiro-web.xml]: Cannot resolve
reference to bean ‘ehCacheManager‘ while setting bean property ‘cacheManager‘; nested exception is org.springframework.beans.factory.BeanCreationException:
Error creating bean with name ‘ehCacheManager‘ defined in class path resource [spring/spring-shiro-web.xml]: Invocation of init method failed; nested exception is net.sf.ehcache.CacheException: Another unnamed CacheManager already
exists in the same VM. Please provide unique names for each CacheManager in the config or do one of following:

最后红色是关键，说要确保缓存管理器只能有一个！

在shiro1.3以后，要确保缓存管理器是单例的。

所以需要这样配

	<!-- MyBatis使用ehcache缓存 start -->
	<bean id="ehCacheManager"
		class="org.springframework.cache.ehcache.EhCacheManagerFactoryBean">
		<property name="configLocation" value="classpath:ehcache/shiroEhcache.xml" />
                <property name="shared" value="true"></property> <!-- 这里是关键！！！没有必错  -->
	</bean>
	<!-- end MyBatis使用ehcache缓存 -->
	<!-- 缓存管理器 使用Ehcache实现 -->
	<bean id="shiroCacheManager" class="org.apache.shiro.cache.ehcache.EhCacheManager">
		<property name="cacheManager" ref="ehCacheManager" />
	</bean>

完整配置文档地址

http://download.csdn.net/detail/tragedyxd/9026633

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