ehcache注解全面解析
通过ehcache以编程方式使用缓存：
跟上面的方式相同，但是缓存通过ehcache去管理，当然比使用map有N多种好处，比如缓存太大了快达到上限之后，将哪一部分缓存清除出去。这种方式完全是通过代码的方式使用ehcache缓存，虽然自由，却也很麻烦；有些比如单纯的场景下，不需要如此麻烦，直接通过注解就行了。
以前在Spring项目中要通过注解的方式使用缓存，比如借助一个jar包：ehcache-spring-annotations.jar，可以在googlecode上面下载，不过已经很久没有更新过了。
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:context="http://www.springframework.org/schema/context" 4 xmlns:tx="http://www.springframework.org/schema/tx" xmlns:osgi="http://www.springframework.org/schema/osgi" 5 xmlns:ehcache="http://ehcache-spring-annotations.googlecode.com/svn/schema/ehcache-spring" 6 xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.0.xsd 7 http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-3.0.xsd 8 http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-3.0.xsd 9 http://www.springframework.org/schema/osgi http://www.springframework.org/schema/osgi/spring-osgi-1.2.xsd 10 http://ehcache-spring-annotations.googlecode.com/svn/schema/ehcache-spring http://ehcache-spring-annotations.googlecode.com/svn/schema/ehcache-spring/ehcache-spring-1.1.xsd"> 11 12 <context:component-scan 13 base-package="com.mpr.mprsp.mcrc.service.mcrs.precedencecode" /> 14 <!-- ehcache config Start --> 15 <ehcache:annotation-driven /> 16 <ehcache:config cache-manager="cacheManager"> 17 <ehcache:evict-expired-elements 18 interval="60" /> 19 </ehcache:config> 20 <bean id="cacheManager" 21 class="org.springframework.cache.ehcache.EhCacheManagerFactoryBean"> 22 <property name="configLocation" value="osgibundlejar:/META-INF/ehcache/ehcache.xml" /> 23 </bean> 24 <!-- ehcache config End --> 25 26 <tx:annotation-driven transaction-manager="txManager" /> 27 28 <bean id="sqlSession" class="org.mybatis.spring.SqlSessionTemplate"> 29 <constructor-arg ref="sqlSessionFactory" /> 30 </bean> 31 32 <!-- 定时任务开始 --> 33 <!-- 线程执行器配置，用于任务注册 --> 34 <bean id="executor" 35 class="org.springframework.scheduling.concurrent.ThreadPoolTaskExecutor"> 36 <property name="corePoolSize" value="10" /> 37 <property name="maxPoolSize" value="100" /> 38 <property name="queueCapacity" value="500" /> 39 </bean> 40 41 <!-- 业务对象 --> 42 <bean id="timerTask" 43 class="com.mpr.mprsp.mcrc.service.mcrs.precedencecode.internal.TimerTask" /> 44 45 <!-- 调度业务 update by wangtao 20130715 --> 46 <bean id="jobDetail" 47 class="org.springframework.scheduling.quartz.MethodInvokingJobDetailFactoryBean"> 48 <property name="targetObject" ref="timerTask" /> 49 <property name="targetMethod" value="serviceTimerTask" /> 50 </bean> 51 52 <!-- 测试 --> 53 <bean id="taskTrigger" class="org.springframework.scheduling.quartz.SimpleTriggerBean"> 54 <property name="jobDetail" ref="jobDetail" /> 55 <!-- 延迟10秒启动 --> 56 <property name="startDelay" value="10000" /> 57 <!-- 每隔20秒执行一次 --> 58 <property name="repeatInterval" value="20000" /> 59 </bean> 60 61 <!-- 增加调度触发器 --> 62 <bean id="cronTrigger" class="org.springframework.scheduling.quartz.CronTriggerBean"> 63 <property name="jobDetail" ref="jobDetail" /> 64 <!-- 每天晚上11点触发 --> 65 <property name="cronExpression" value="0 0 23 * * ?" /> 66 </bean> 67 68 <!-- 增加调度触发器 add by wangtao 20130715 --> 69 <bean id="autoApplyCodeCronTrigger" class="org.springframework.scheduling.quartz.CronTriggerBean"> 70 <property name="jobDetail" ref="jobDetail" /> 71 <!-- 每天中午12点触发 --> 72 <property name="cronExpression" value="0 0 12 * * ?" /> 73 </bean> 74 75 <!-- 设置调度 update by wangtao 20130715 --> 76 <bean class="org.springframework.scheduling.quartz.SchedulerFactoryBean"> 77 <property name="triggers"> 78 <list> 79 <!-- <ref bean="cronTrigger" /> --> 80 <ref bean="cronTrigger" /> 81 </list> 82 </property> 83 <property name="taskExecutor" ref="executor" /> 84 </bean> 85 <!-- 定时任务结束 --> 86 87 <!-- 引入服务 --> 88 <!-- 引入文件服务器同步 --> 89 <osgi:reference id="fileSyncManager" 90 interface="com.mpr.mprsp.mcrc.service.mcrs.upload.service.IFileSyncManager" /> 91 <!-- 引入系统配置项 --> 92 <osgi:reference id="sysConfigManager" 93 interface="com.mpr.mprsp.mcrc.service.mcrs.configuration.service.ISysConfigManager" /> 94 <!-- 引入邮件管理 --> 95 <osgi:reference id="mailSendManager" 96 interface="com.mpr.mprsp.mcrc.email.service.IMailSendManager" /> 97 <!-- 引入SqlSessionFactory --> 98 <osgi:reference id="sqlSessionFactory" 99 interface="org.apache.ibatis.session.SqlSessionFactory" bean-name="sqlSessionFactory" /> 100 <!-- 引入DataSourceTransactionManager --> 101 <osgi:reference id="txManager" 102 interface="org.springframework.jdbc.datasource.DataSourceTransactionManager" 103 bean-name="txManager" /> 104 <!-- 引入ParametersMapBuilder --> 105 <osgi:reference id="parametersMapBuilder" 106 interface="com.isoftstone.agiledev.core.query.mybatis.ParametersMapBuilder" 107 bean-name="parametersMapBuilder" /> 108 109 <!-- 暴露服务 --> 110 <!-- 暴露MPR出版物内容类型 --> 111 <osgi:service ref="publicationContentTypeManager" 112 interface="com.mpr.mprsp.mcrc.service.mcrs.precedencecode.service.IPublicationContentTypeManager" /> 113 <!-- 暴露语种管理 --> 114 <osgi:service ref="languageManager" 115 interface="com.mpr.mprsp.mcrc.service.mcrs.precedencecode.service.ILanguageManager" /> 116 <!-- 暴露码段管理 --> 117 <osgi:service ref="mprCodeSegmentManager" 118 interface="com.mpr.mprsp.mcrc.service.mcrs.precedencecode.service.IMprCodeSegmentManager" /> 119 <!-- 暴露预警阀值 --> 120 <osgi:service ref="mprCodeThresholdManager" 121 interface="com.mpr.mprsp.mcrc.service.mcrs.precedencecode.service.IMprCodeThresholdManager" /> 122 <!-- 暴露MPR前置码生效信息管理 --> 123 <osgi:service ref="caroperInfoSyncManager" 124 interface="com.mpr.mprsp.mcrc.service.mcrs.precedencecode.service.ICaroperInfoSyncManager" /> 125 <!-- 暴露MPR前置码文件管理 --> 126 <osgi:service ref="mprFileManager" 127 interface="com.mpr.mprsp.mcrc.service.mcrs.precedencecode.service.IMprFileManager" /> 128 <!-- 暴露撤销记录管理 --> 129 <osgi:service ref="revocationStatsManager" 130 interface="com.mpr.mprsp.mcrc.service.mcrs.precedencecode.service.IRevocationStatsManager" /> 131 <!-- 暴露废除记录管理 --> 132 <osgi:service ref="abolishStatsManager" 133 interface="com.mpr.mprsp.mcrc.service.mcrs.precedencecode.service.IAbolishStatsManager" /> 134 <!-- 暴露图书业务管理 --> 135 <osgi:service ref="publicationManager" 136 interface="com.mpr.mprsp.mcrc.service.mcrs.precedencecode.service.IPublicationManager" /> 137 <!-- 暴露 期刊业务管理 --> 138 <osgi:service ref="periodicalManager" 139 interface="com.mpr.mprsp.mcrc.service.mcrs.precedencecode.service.IPeriodicalManager" /> 140 <!-- 暴露报纸业务管理 --> 141 <osgi:service ref="newsPaperManager" 142 interface="com.mpr.mprsp.mcrc.service.mcrs.precedencecode.service.INewsPaperManager" /> 143 <!-- 暴露音像业务管理 --> 144 <osgi:service ref="audioManager" 145 interface="com.mpr.mprsp.mcrc.service.mcrs.precedencecode.service.IAudioManager" /> 146 <!-- 暴露（组区）MPR出版物管理 --> 147 <osgi:service ref="publicationAreaManager" 148 interface="com.mpr.mprsp.mcrc.service.mcrs.precedencecode.service.IPublicationAreaManager" /> 149 <!-- MPR出版物视图服务类 --> 150 <osgi:service ref="publicationViewManager" 151 interface="com.mpr.mprsp.mcrc.service.mcrs.precedencecode.service.IPublicationViewManager" /> 152 <!-- MPR 资源类 --> 153 <osgi:service ref="mprCodeResourceManager" 154 interface="com.mpr.mprsp.mcrc.service.mcrs.precedencecode.service.IMprCodeResourceManager" /> 155 <!-- 关联关系管理 --> 156 <osgi:service ref="isliMprCodeRelationManager" 157 interface="com.mpr.mprsp.mcrc.service.mcrs.precedencecode.service.IIsliMprCodeRelationManager" /> 158 159 <!-- option 下拉选框数据 --> 160 <osgi:service ref="optionManager" 161 interface="com.mpr.mprsp.mcrc.service.mcrs.precedencecode.service.IOptionManager" /> 162 163 <osgi:service ref="apiPublicationService" 164 interface="com.mpr.mprsp.mcrc.service.mcrs.precedencecode.service.IApiPublicationService" /> 165 166 167 168 <!-- openservice 暴露前置编码服务接口 --> 169 <osgi:service ref="openService" 170 interface="com.mpr.mprsp.mcrc.service.mcrs.precedencecode.service.IOpenService" /> 171 172 <osgi:reference id="sysLogManager" 173 interface="com.mpr.mprsp.mcrc.service.mcrs.system.service.ISysLogManager"/> 174 175 <osgi:reference id="statsMprManager" 176 interface="com.mpr.mprsp.mcrc.service.mcrs.statistics.service.IStatsMpr" /> 177 <osgi:reference id="statsPublication" 178 interface="com.mpr.mprsp.mcrc.service.mcrs.statistics.service.IStatsPublication" /> 179 <osgi:reference id="statsPublisher" 180 interface="com.mpr.mprsp.mcrc.service.mcrs.statistics.service.IStatsPublisher" /> 181 <osgi:reference id="publisherGroupManager" 182 interface="com.mpr.mprsp.mcrc.service.mcrs.publisher.service.IPublisherGroupManager" /> 183 </beans>
共有两个注解：
- @Cacheabele ：指定方法使用缓存
- @TriggersRemove ：从缓存中移除对象
在查询的方法上使用缓存：
@SuppressWarnings("unchecked") @Cacheable(cacheName = "publicationsCache") public List<PublicationViewInfo> query(PublicationViewInfoParams params) throws Exception
在删除或更新的方法上清空缓存：
@Override
@TriggersRemove(cacheName = {"publicationsCache"},
when = When.AFTER_METHOD_INVOCATION,
removeAll = true)
public int hiddenResource(Long resourceId, String publicationType,
Boolean isHidden) throws Exception {
