我正在尝试但未能成功在具有以下 依赖项的* Spring Data 和 Hibernate environmet中缓存查询: *
compile 'org.hibernate:hibernate-validator:4.0.0.GA' compile 'org.hibernate:hibernate-entitymanager:3.6.6.Final' compile 'org.hibernate.javax.persistence:hibernate-jpa-2.0-api:1.0.0.Final' compile 'org.hibernate:hibernate-ehcache:3.3.1.GA' compile 'org.springframework.data:spring-data-jpa:1.2.0.RELEASE'
public interface ServiceRepository extends CrudRepository<Service, Long>, JpaSpecificationExecutor<Service> { @Cacheable("merchantServices") @Query("select s from Service s JOIN s.statusList sas where s.status=?1 and s.priviligedUser.priviligedUserType IN (2,4) and (s.id IN (select st.id from Service st inner join st.tags tag where tag IN (?3)) or s.serviceType IN (?2)) and sas.active=true and sas.transactorType=?4 ORDER BY s.name") List<Service> getAllMerchantServicesByStatusTypeAndTags(ServiceStatus status, List<ServiceType> type, List<String> tags, TransactorType transactor); }
public List<Service> getAllServicesByStatusAndId(ServiceStatus status, List<Long> services, TransactorType transactor) { return serviceRepository.getAllMerchantServicesByStatusAndServiceId(status, services, transactor); }
它的灵感来自spring-data-jpa-examples / src / main / resources / caching-repository- context.xml
<?xml version="1.0" encoding="UTF-8"?> <beans xmlns:p="http://www.springframework.org/schema/p" xmlns="http://www.springframework.org/schema/beans" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:cache="http://www.springframework.org/schema/cache" xmlns:mvc="http://www.springframework.org/schema/mvc" xmlns:context="http://www.springframework.org/schema/context" xmlns:tx="http://www.springframework.org/schema/tx" xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.0.xsd http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc-3.0.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-3.0.xsd http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx.xsd http://www.springframework.org/schema/cache http://www.springframework.org/schema/cache/spring-cache.xsd" default-autowire="byName"> <tx:annotation-driven /> <bean id="cacheManager" class="org.springframework.cache.support.SimpleCacheManager"> <property name="caches"> <set> <bean class="org.springframework.cache.concurrent.ConcurrentMapCacheFactoryBean" p:name="merchantServices"/> </set> </property> </bean> </beans>
<?xml version='1.0' encoding='utf-8'?> <!DOCTYPE hibernate-configuration PUBLIC "-//Hibernate/Hibernate Configuration DTD 3.0//EN" "http://hibernate.sourceforge.net/hibernate-configuration-3.0.dtd"> <hibernate-configuration> <session-factory> <property name="hibernate.default_batch_fetch_size">16</property> <property name="hibernate.max_fetch_depth">5</property> <property name="hibernate.cache.use_query_cache">true</property> <property name="hibernate.cache.use_second_level_cache">true</property> <property name="hibernate.generate_statistics">true</property> <property name="hibernate.cache.provider_class">org.hibernate.cache.EhCacheProvider</property> <property name="hibernate.c3p0.timeout">300</property> </session-factory> </hibernate-configuration>
看日志;每次请求时,我都会看到查询已执行。
17:50:28.997 [http-bio-8080-exec-10] INFO org.hibernate.stat.Statistics - HQL: select s from Service s JOIN s.statusList sas where s.status=?1 and s.priviligedUser.priviligedUserType IN (2,4) and s.id IN (?2) and sas.active=true and sas.transactorType=?3 ORDER BY s.name, time: 57ms, rows: 1
下次我请求时,看到以下查询;
18:03:40.374 [http-bio-8080-exec-8] INFO org.hibernate.stat.Statistics - HQL: select s from Service s JOIN s.statusList sas where s.status=?1 and s.priviligedUser.priviligedUserType IN (2,4) and s.id IN (?2) and sas.active=true and sas.transactorType=?3 ORDER BY s.name, time: 47ms, rows: 1
spring-projects / spring-data-jpa-examples
Spring 3.1缓存和配置
<cache:annotation-driven />中jpa-context.xml缺少,它可以解决问题。最终jpa-context.xml是
<cache:annotation-driven />
jpa-context.xml
<?xml version="1.0" encoding="UTF-8"?> <beans xmlns:p="http://www.springframework.org/schema/p" xmlns="http://www.springframework.org/schema/beans" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:cache="http://www.springframework.org/schema/cache" xmlns:mvc="http://www.springframework.org/schema/mvc" xmlns:context="http://www.springframework.org/schema/context" xmlns:tx="http://www.springframework.org/schema/tx" xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.0.xsd http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc-3.0.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-3.0.xsd http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx.xsd http://www.springframework.org/schema/cache http://www.springframework.org/schema/cache/spring-cache.xsd" default-autowire="byName"> <tx:annotation-driven /> <cache:annotation-driven /> <bean id="cacheManager" class="org.springframework.cache.support.SimpleCacheManager"> <property name="caches"> <set> <bean class="org.springframework.cache.concurrent.ConcurrentMapCacheFactoryBean" p:name="merchantServices"/> </set> </property> </bean> </beans>
我还补充说resources/ehcache.xml。
resources/ehcache.xml
<?xml version="1.0" encoding="UTF-8"?> <ehcache xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="http://ehcache.org/ehcache.xsd"> <diskStore path="/home/prayag/cache_"/> <defaultCache eternal="false" maxElementsInMemory="1000" overflowToDisk="true" diskPersistent="true" timeToLiveSeconds="300" /> </ehcache>
<propertyname="hibernate.cache.provider_configuration_file_resource_path">ehcache.xml</property>在中被引用resources/hibernate.cfg.xml。
<propertyname="hibernate.cache.provider_configuration_file_resource_path">ehcache.xml</property>
resources/hibernate.cfg.xml
prayag@prayag:~/hacker_/draobkcalb$ sudo dmidecode -t cache [sudo] password for prayag: # dmidecode 2.11 SMBIOS 2.5 present. Handle 0x000A, DMI type 7, 19 bytes Cache Information Socket Designation: Internal Cache Configuration: Enabled, Not Socketed, Level 1 Operational Mode: Write Back Location: Internal Installed Size: 32 kB Maximum Size: 32 kB Supported SRAM Types: Synchronous Installed SRAM Type: Synchronous Speed: Unknown Error Correction Type: Unknown System Type: Unknown Associativity: Unknown Handle 0x000B, DMI type 7, 19 bytes Cache Information Socket Designation: External Cache Configuration: Enabled, Not Socketed, Level 2 Operational Mode: Write Back Location: External Installed Size: 2048 kB Maximum Size: 2048 kB Supported SRAM Types: Synchronous Installed SRAM Type: Synchronous Speed: Unknown Error Correction Type: Unknown System Type: Unknown Associativity: Unknown