Shiro配置缓存

1.在src/main/resources下添加ehcache.xml文件，文件中的资源配置如下所示：

<!--
  ~ Hibernate, Relational Persistence for Idiomatic Java
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  ~ indicated by the @author tags or express copyright attribution
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<ehcache>

    <!-- Sets the path to the directory where cache .data files are created.

         If the path is a Java System Property it is replaced by
         its value in the running VM.

         The following properties are translated:
         user.home - User's home directory
         user.dir - User's current working directory
         java.io.tmpdir - Default temp file path -->
    <diskStore path="d:/target/tmp"/>


    <!--Default Cache configuration. These will applied to caches programmatically created through
        the CacheManager.

        The following attributes are required for defaultCache:

        maxInMemory       - Sets the maximum number of objects that will be created in memory
        eternal           - Sets whether elements are eternal. If eternal,  timeouts are ignored and the element
                            is never expired.
        timeToIdleSeconds - Sets the time to idle for an element before it expires. Is only used
                            if the element is not eternal. Idle time is now - last accessed time
        timeToLiveSeconds - Sets the time to live for an element before it expires. Is only used
                            if the element is not eternal. TTL is now - creation time
        overflowToDisk    - Sets whether elements can overflow to disk when the in-memory cache
                            has reached the maxInMemory limit.

        -->
    <defaultCache
        maxElementsInMemory="10000"
        eternal="false"
        timeToIdleSeconds="120"
        timeToLiveSeconds="120"
        overflowToDisk="true"
        />

    <!-- Place configuration for your caches following -->

</ehcache>

2.在spring-bean.xml中配置缓存管理器：

<!-- 缓存管理器 使用Ehcache实现 -->
    <bean id="cacheManager" class="org.apache.shiro.cache.ehcache.EhCacheManager">
        <property name="cacheManagerConfigFile" value="classpath:ehcache.xml" />
    </bean>

3.在spring-bean.xml中的安全管理器中引入缓存管理器：

<!-- 安全管理器 -->
    <bean id="securityManager" class="org.apache.shiro.web.mgt.DefaultWebSecurityManager">  
      <property name="realm" ref="myRealm"/>  
      <property name="cacheManager" ref="cacheManager" />
      <property name="rememberMeManager" ref="rememberMeManager" />
    </bean>