Spring基于注解的缓存配置--EHCache AND OSCache

本文将构建一个普通工程来说明spring注解缓存的使用方式,关于如何在web应用中使用注解缓存,请参见:

Spring基于注解的缓存配置--web应用实例

 

一.简介 
在spring的modules包中提供对许多第三方缓存方案的支持,包括: 
EHCache 
OSCache(OpenSymphony) 
JCS 
GigaSpaces 
JBoss Cache 
等等。 
将这些第三方缓存方案配置在spring中很简单,网上有许多介绍,这里只重点介绍如何配置基于注解的缓存配置。 
本文将通过例举EHCache和OSCache详细介绍如何使用spring配置基于注解的缓存配置,注意这里的缓存是方法级的。 

二.依赖 
在开始介绍如何进行缓存配置前先介绍一下EHCache和OSCache的jar依赖。 
EHCache: 
ehcache-core-1.7.2.jar 
jakarta-oro-2.0.8.jar 
slf4j-api-1.5.8.jar 
slf4j-jdk14-1.5.8.jar 

OSCache: 
oscache-2.4.1.jar 

此外,两者都需要的jar如下: 
cglib-nodep-2.1_3.jar 
commons-logging.jar 
log4j-1.2.15.jar 
spring-modules-cache.jar 
spring.jar 

三.配置

两种缓存在spring配置文件中都可以使用两种配置方式,一种是spring2.0以前的完全基于bean的复杂配置,一种是使用后来的基于命名空间的简单配置,两种配置效果相同,分别介绍如下:


EHCache: 
1)普通配置

 

[xhtml]  view plain copy
 
  1. <?xml version="1.0" encoding="UTF-8"?>    
  2. <beans xmlns="http://www.springframework.org/schema/beans"    
  3.     xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"    
  4.     xsi:schemaLocation="http://www.springframework.org/schema/beans      
  5.   http://www.springframework.org/schema/beans/spring-beans.xsd">    
  6.     
  7.     <!-- aop代理,这个是必须地,否则缓存不起作用 -->    
  8.     <bean id="autoproxy"    
  9.         class="org.springframework.aop.framework.autoproxy.DefaultAdvisorAutoProxyCreator" />    
  10.     
  11.          
  12.     <!-- EhCache 管理工厂 用于指定ehcache配置文件路径 -->    
  13.     <bean id="cacheManager"    
  14.         class="org.springframework.cache.ehcache.EhCacheManagerFactoryBean">    
  15.         <property name="configLocation" value="classpath:ehcache.xml" />    
  16.     </bean>    
  17.     <bean id="cacheProviderFacade" class="org.springmodules.cache.provider.ehcache.EhCacheFacade">    
  18.         <property name="cacheManager" ref="cacheManager" />    
  19.     </bean>    
  20.     
  21.     
  22.     <!-- 1.5+ Annotation 基于注解查找被缓存的业务方法 -->    
  23.     <bean id="cachingAttributeSource"    
  24.         class="org.springmodules.cache.annotations.AnnotationCachingAttributeSource"></bean>    
  25.     <!-- 缓存拦截器:定义了缓存模块,ehcache只需要指定配置文件中的缓存名称 -->    
  26.     <bean id="cachingInterceptor"    
  27.         class="org.springmodules.cache.interceptor.caching.MetadataCachingInterceptor">    
  28.         <property name="cacheProviderFacade" ref="cacheProviderFacade" />    
  29.         <property name="cachingAttributeSource" ref="cachingAttributeSource" />    
  30.         <property name="cachingModels">    
  31.             <props>    
  32.                 <prop key="testCaching">cacheName=testCache</prop>    
  33.             </props>    
  34.         </property>    
  35.     </bean>    
  36.     
  37.     <!-- 基于注解查找缓存业务方法的AOP通知器 -->    
  38.     <bean id="cachingAttributeSourceAdvisor"    
  39.         class="org.springmodules.cache.interceptor.caching.CachingAttributeSourceAdvisor">    
  40.         <constructor-arg ref="cachingInterceptor" />    
  41.     </bean>    
  42.     
  43.     <!-- 基于注解查找触发缓存刷新动作的业务方法 -->    
  44.     <bean id="flushingAttributeSource"    
  45.         class="org.springmodules.cache.annotations.AnnotationFlushingAttributeSource"></bean>    
  46.     
  47.     <!-- 刷新拦截器:定义了刷新策略,基于那个模块ID,刷新相应的缓存 -->    
  48.    <bean id="flushingInterceptor"    
  49.         class="org.springmodules.cache.interceptor.flush.MetadataFlushingInterceptor">    
  50.         <property name="cacheProviderFacade" ref="cacheProviderFacade" />    
  51.         <property name="flushingAttributeSource" ref="flushingAttributeSource" />    
  52.         <property name="flushingModels">    
  53.             <map>    
  54.                 <entry key="testFlushing">    
  55.                     <bean    
  56.                         class="org.springmodules.cache.provider.ehcache.EhCacheFlushingModel">    
  57.                              
  58.                         <property name="cacheNames">    
  59.                             <list>    
  60.                                 <value>testCache</value>    
  61.                             </list>    
  62.                         </property>    
  63.                               
  64.                          <!-- 报错,应该是不能直接设置cacheName     
  65.                          <property name="cacheName" value="testCache"/>                
  66.                          -->              
  67.                     </bean>    
  68.                 </entry>    
  69.             </map>    
  70.     
  71.         </property>    
  72.     </bean>    
  73.     
  74.     <!-- 基于注解查找刷新缓存业务方法的AOP通知器 -->    
  75.     <bean id="flushingAttributeSourceAdvisor"    
  76.         class="org.springmodules.cache.interceptor.flush.FlushingAttributeSourceAdvisor">    
  77.         <constructor-arg ref="flushingInterceptor" />    
  78.     </bean>    
  79.     
  80.     <!-- 测试对象 -->    
  81.     <bean id="testCache" class="com.TestCache"/>    
  82.     
  83. </beans>  

 

 

2)命名空间配置

 

[xhtml]  view plain copy
 
  1. <?xml version="1.0" encoding="UTF-8"?>    
  2. <beans xmlns="http://www.springframework.org/schema/beans"    
  3.     xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:ehcache="http://www.springmodules.org/schema/ehcache"    
  4.     xsi:schemaLocation="     
  5.             http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-2.5.xsd     
  6.             http://www.springmodules.org/schema/ehcache http://www.springmodules.org/schema/cache/springmodules-ehcache.xsd">    
  7.     
  8. <!-- 这里可以不需要配置这个     
  9.     <bean id="autoproxy" class="org.springframework.aop.framework.autoproxy.DefaultAdvisorAutoProxyCreator" />    
  10.  -->    
  11.          
  12.     <ehcache:config configLocation="classpath:ehcache.xml"    
  13.         id="cacheProvider" />    
  14.     <ehcache:annotations providerId="cacheProvider">    
  15.         <ehcache:caching cacheName="testCache" id="testCaching" />    
  16.         <ehcache:flushing cacheNames="testCache" id="testFlushing" />    
  17.     </ehcache:annotations>    
  18.          
  19.          
  20.     <bean id="testCache" class="com.TestCache"/>       
  21.     
  22. </beans>  

 

 

 

OSCache: 
1)普通配置

 

[xhtml]  view plain copy
 
  1. <?xml version="1.0" encoding="UTF-8"?>    
  2. <beans xmlns="http://www.springframework.org/schema/beans"    
  3.     xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"    
  4.     xsi:schemaLocation="http://www.springframework.org/schema/beans      
  5.   http://www.springframework.org/schema/beans/spring-beans.xsd">    
  6.     
  7.     <!-- 这个是必须地,否则缓存不起作用 -->    
  8.     <bean id="autoproxy"    
  9.         class="org.springframework.aop.framework.autoproxy.DefaultAdvisorAutoProxyCreator" />    
  10.     
  11.     <!-- 缓存管理工厂:使用OSCache缓存管理,配置了OSCache使用的配置文件路径 -->    
  12.     <bean id="cacheManager"    
  13.         class="org.springmodules.cache.provider.oscache.OsCacheManagerFactoryBean">    
  14.         <property name="configLocation" value="classpath:oscache.properties" />    
  15.     </bean>    
  16.     <!-- 缓存提供:OSCache -->    
  17.     <bean id="cacheProviderFacade" class="org.springmodules.cache.provider.oscache.OsCacheFacade">    
  18.         <property name="cacheManager" ref="cacheManager" />    
  19.     </bean>    
  20.     
  21.     
  22.     
  23.     <!-- 1.5+ Annotation 基于注解查找被缓存的业务方法 -->    
  24.     <bean id="cachingAttributeSource"    
  25.         class="org.springmodules.cache.annotations.AnnotationCachingAttributeSource"></bean>    
  26.     
  27.     <!-- 缓存拦截器:定义了缓存模块,以及相应的刷新策略,以及缓存所属群组 -->    
  28.    <bean id="cachingInterceptor"    
  29.         class="org.springmodules.cache.interceptor.caching.MetadataCachingInterceptor">    
  30.         <property name="cacheProviderFacade" ref="cacheProviderFacade" />    
  31.         <property name="cachingAttributeSource" ref="cachingAttributeSource" />    
  32.         <property name="cachingModels">    
  33.             <props>    
  34.                 <prop key="testCaching">refreshPeriod=86400;cronExpression=0 1 * * *;groups=pb_test</prop>    
  35.             </props>    
  36.         </property>    
  37.     </bean>    
  38.     
  39.     <!-- 基于注解查找缓存业务方法的AOP通知器 -->    
  40.     <bean id="cachingAttributeSourceAdvisor"    
  41.         class="org.springmodules.cache.interceptor.caching.CachingAttributeSourceAdvisor">    
  42.         <constructor-arg ref="cachingInterceptor" />    
  43.     </bean>    
  44.     
  45.     <!-- 基于注解查找触发缓存刷新动作的业务方法 -->    
  46.     <bean id="flushingAttributeSource"    
  47.         class="org.springmodules.cache.annotations.AnnotationFlushingAttributeSource"></bean>    
  48.     
  49.     <!-- 刷新拦截器:定义了刷新策略,基于那个模块ID,刷新相应的缓存群组 -->    
  50.     <bean id="flushingInterceptor"    
  51.         class="org.springmodules.cache.interceptor.flush.MetadataFlushingInterceptor">    
  52.         <property name="cacheProviderFacade" ref="cacheProviderFacade" />    
  53.         <property name="flushingAttributeSource" ref="flushingAttributeSource" />    
  54.         <property name="flushingModels">    
  55.             <props>    
  56.                 <prop key="testFlushing">groups=pb_test</prop>    
  57.             </props>    
  58.         </property>    
  59.     </bean>    
  60.     
  61.     <!-- 基于注解查找刷新缓存业务方法的AOP通知器 -->    
  62.     <bean id="flushingAttributeSourceAdvisor"    
  63.         class="org.springmodules.cache.interceptor.flush.FlushingAttributeSourceAdvisor">    
  64.         <constructor-arg ref="flushingInterceptor" />    
  65.     </bean>    
  66.     
  67.     <bean id="testCache" class="com.TestCache"/>    
  68.     
  69. </beans>  

 

 

2)命名空间配置

 

[xhtml]  view plain copy
 
  1. <?xml version="1.0" encoding="UTF-8"?>    
  2. <beans xmlns="http://www.springframework.org/schema/beans"    
  3.     xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:oscache="http://www.springmodules.org/schema/oscache"    
  4.     xsi:schemaLocation="     
  5.             http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-2.5.xsd     
  6.             http://www.springmodules.org/schema/oscache http://www.springmodules.org/schema/cache/springmodules-oscache.xsd">    
  7.     
  8. <!-- 这里可以不需要配置这个     
  9.     <bean id="autoproxy" class="org.springframework.aop.framework.autoproxy.DefaultAdvisorAutoProxyCreator" />    
  10.  -->    
  11.          
  12.     <oscache:config configLocation="classpath:oscache.properties" id="cacheProvider"/>    
  13.          
  14.     <oscache:annotations providerId="cacheProvider">    
  15.         <oscache:caching id="testCaching" groups="pb_test" cronExpression="0 1 * * *" refreshPeriod="86400"/>    
  16.         <oscache:flushing id="testFlushing" groups="pb_test"/>    
  17.     </oscache:annotations>    
  18.          
  19.     <bean id="testCache" class="com.TestCache"/>    
  20.          
  21. </beans>  

 

 

四.注解

  @Cacheable:声明一个方法的返回值应该被缓存

例如:@Cacheable(modelId = "testCaching")

  @CacheFlush:声明一个方法是清空缓存的触发器

例如:@CacheFlush(modelId = "testCaching")

 

五.测试

  这是用使用一个带有main函数的类来进行测试,代码如下:

 

[java]  view plain copy
 
  1. /*   
  2. * COPYRIGHT Beijing NetQin-Tech Co.,Ltd.                                   *   
  3. ****************************************************************************   
  4. * 源文件名: TestCache.java                                                                
  5. * 功能: (描述文件功能)                                                        
  6. * 版本:   @version 1.0                                                                          
  7. * 编制日期: 2010-2-24                                                             
  8. * 说明: (描述使用文件功能时的制约条件)                                          
  9. * 修改历史: (主要历史变动原因及说明)          
  10. * YYYY-MM-DD |    Author      |  Change Description              
  11. * 2010-2-24   |  hanqunfeng    |  Created    
  12. */    
  13. package com;     
  14.     
  15. import net.sf.ehcache.CacheManager;     
  16.     
  17. import org.springframework.context.ApplicationContext;     
  18. import org.springframework.context.support.ClassPathXmlApplicationContext;     
  19. import org.springmodules.cache.annotations.CacheFlush;     
  20. import org.springmodules.cache.annotations.Cacheable;     
  21.     
  22. import com.opensymphony.oscache.general.GeneralCacheAdministrator;     
  23.     
  24. public class TestCache {     
  25.     
  26.     /**                                                             
  27.      * 描述 : <描述函数实现的功能>. <br>   
  28.      *<p>                                                    
  29.                                                                                                                                                                                                              
  30.      * @param args                                                                                                    
  31.      */    
  32.     static String context = null;     
  33.     static ApplicationContext applicationContext;     
  34.     
  35.     static{     
  36.         context = "applicationContext-ehcache.xml";//ehcache简单配置(命名空间)     
  37. //      context = "applicationContext-ehcache_full.xml";//ehcache完整配置     
  38. //      context = "applicationContext-oscache.xml";//oscache简单配置(命名空间)     
  39. //      context = "applicationContext-oscache_full.xml";//oscache完整配置     
  40.              
  41.         applicationContext = new ClassPathXmlApplicationContext(context);     
  42.     }     
  43.     public static void main(String[] args) {     
  44.         TestCache test = (TestCache)applicationContext.getBean("testCache");     
  45.         System.out.println(test.getName(0));     
  46.         System.out.println(test.getName(0));     
  47.         System.out.println(test.getName(0));     
  48.         test.flush();     
  49. //      test.OSFlushAll();     
  50. //      test.EHFlushAll();     
  51.         System.out.println(test.getName(0));     
  52.         System.out.println(test.getName(0));     
  53.         System.out.println(test.getName(0));     
  54.              
  55.     
  56.     }     
  57.     @Cacheable(modelId = "testCaching")     
  58.     public String getName(int i){     
  59.         System.out.println("Processing testCaching");     
  60.         return "nihao:"+i;     
  61.     }     
  62.          
  63.     @CacheFlush(modelId = "testFlushing")     
  64.     public void flush(){     
  65.         System.out.println("Processing testFlushing");     
  66.     }     
  67.          
  68.     /**                                                             
  69.     * 描述 : <OSCache刷新全部缓存>. <br>   
  70.     *<p>                                                    
  71.          问题:flushAll() 后不会再缓存数据                                                                                                                                                                                                                                                                                                   
  72.     */    
  73.     public void OSFlushAll(){     
  74.         GeneralCacheAdministrator cacheAdmin = (GeneralCacheAdministrator)applicationContext.getBean("cacheManager");     
  75.         cacheAdmin.flushAll();     
  76.         System.out.println("Processing OSFlushingAll");     
  77.     }     
  78.          
  79.     /**                                                             
  80.     * 描述 : <清空指定组名称的缓存>. <br>   
  81.     *<p>                                                    
  82.                                                                                                                                                                                                              
  83.     * @param groupName                                                                                                    
  84.     */    
  85.     public void OSFlushGroup(String groupName){     
  86.         GeneralCacheAdministrator cacheAdmin = (GeneralCacheAdministrator)applicationContext.getBean("cacheManager");     
  87.         cacheAdmin.flushGroup(groupName);//清除该组的缓存:pb_test     
  88.         System.out.println("Processing OSFlushingGroup:"+groupName);     
  89.     }     
  90.          
  91.     /**                                                             
  92.     * 描述 : <EHCache刷新全部缓存>. <br>   
  93.     *<p>                                                    
  94.         success                                                                                                                                                                                                                                                                                   
  95.     */    
  96.     public void EHFlushAll(){     
  97.         CacheManager cacheAdmin = (CacheManager)applicationContext.getBean("cacheManager");     
  98.         cacheAdmin.clearAll();       
  99.         System.out.println("Processing EHFlushingAll");     
  100.     }     
  101.          
  102.     /**                                                             
  103.     * 描述 : <清空指定名称的缓存>. <br>   
  104.     *<p>                                                    
  105.                                                                                                                                                                                                              
  106.     * @param cacheName                                                                                                    
  107.     */    
  108.     public void EHFlushCache(String cacheName){     
  109.         CacheManager cacheAdmin = (CacheManager)applicationContext.getBean("cacheManager");     
  110.         cacheAdmin.getCache(cacheName).flush();//清除单个缓存:testCache        
  111.         System.out.println("Processing EHFlushingCacheName:"+cacheName);     
  112.     }     
  113.          
  114.     
  115. }   

 

测试结果

Processing testCaching
nihao:0
nihao:0
nihao:0
Processing testFlushing
Processing testCaching
nihao:0
nihao:0
nihao:0

 

六.缓存配置文件

ehcache.xml

 

[xhtml]  view plain copy
 
  1. <?xml version="1.0" encoding="UTF-8"?>    
  2. <ehcache xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"    
  3.     xsi:noNamespaceSchemaLocation="ehcache.xsd" updateCheck="true"    
  4.     monitoring="autodetect">    
  5.     <diskStore path="java.io.tmpdir"/>    
  6.     <defaultCache    
  7.             maxElementsInMemory="10000"    
  8.             eternal="false"    
  9.             timeToIdleSeconds="120"    
  10.             timeToLiveSeconds="120"    
  11.             overflowToDisk="true"    
  12.             maxElementsOnDisk="10000000"    
  13.             diskPersistent="false"    
  14.             diskExpiryThreadIntervalSeconds="120"    
  15.             memoryStoreEvictionPolicy="LRU"    
  16.             />    
  17.      <cache name="testCache"    
  18.            maxElementsInMemory="10000"    
  19.            maxElementsOnDisk="1000"    
  20.            eternal="false"    
  21.            overflowToDisk="true"    
  22.            diskSpoolBufferSizeMB="20"    
  23.            timeToIdleSeconds="300"    
  24.            timeToLiveSeconds="600"    
  25.            memoryStoreEvictionPolicy="LFU"    
  26.             />    
  27. </ehcache>  

 

 

oscache.properties

 

 

[xhtml]  view plain copy
 
  1. cache.capacity=5000  

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