我是ehcache和spring注释集成的新手 . 我使用 com.googlecode.ehcache.annotations.Cacheable 注释如下 spring 2.5 并且它永远不会缓存返回值 . cache.getKeys()
返回一个空列表,每次控制器进行调用时都会调用该方法 . 请帮帮我 .
以下方法是一个接口的实现,控制器将根据映射的请求调用jsp URL.cacheID
始终是常量,我的想法是将检索到的值存储在散列映射中,并在应用程序需要时访问这些映射 .
@Override
@Cacheable(cacheName="partnerMapping")
public String retrievePartnerMappings(String cacheID) {
partnerCodeToNameMapping = new HashMap<String, String>();
partnerNameToCodeMapping = new HashMap<String, String>();
Cache cache = cacheManager.getCache("partnerMapping");
log.debug(cache.getKeys().toString());
try {
log.debug("Querying for partner mappings...");
Collection<PartnerMapping> partnerMappings = this.getSimpleJdbcTemplate()
.query(
sqlStatements.getProperty("selectAllSql"),
ParameterizedBeanPropertyRowMapper
.newInstance(PartnerMapping.class));
for (PartnerMapping mapping : partnerMappings) {
partnerCodeToNameMapping.put(mapping.getPartnerCode().toUpperCase(),
mapping.getPartnerName());
partnerNameToCodeMapping.put(mapping.getPartnerName(), mapping
.getPartnerCode().toUpperCase());
}
return "success";
} catch (DataAccessException e) {
log.error("Unable to retrieve the partner mappings!!", e);
return "fail";
}
}
ehcache.xml中:
<?xml version="1.0" encoding="UTF-8"?>
<ehcache xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:noNamespaceSchemaLocation="http://ehcache.org/ehcache.xsd">
<cache name="partnerMapping" maxElementsInMemory="100" eternal="false"
overflowToDisk="false" timeToLiveSeconds="120" timeToIdleSeconds="120"/>
</ehcache>
spring 的context.xml
<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns:context="http://www.springframework.org/schema/context"
xmlns:ehcache="http://ehcache-spring-annotations.googlecode.com/svn/schema/ehcache-spring"
xsi:schemaLocation="http://www.springframework.org/schema/beans
http://www.springframework.org/schema/beans/spring-beans-2.5.xsd
http://www.springframework.org/schema/context
http://www.springframework.org/schema/context/spring-context-2.5.xsd
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">
<ehcache:annotation-driven />
<context:annotation-config />
<context:component-scan base-package="com.spring.ehcache" />
<ehcache:config cache-manager="cacheManager">
<ehcache:evict-expired-elements interval="60" />
</ehcache:config>
<bean id="cacheManager" class="org.springframework.cache.ehcache.EhCacheManagerFactoryBean">
<property name="configLocation" value="/WEB-INF/ehcache.xml"/>
</bean>
</beans>
1 回答
设法让这个工作 . 我在主dispatcherServlet xml中包含了ehcache配置,而不是单独的xml配置,然后包含在spring上下文中 .