I want to cache a few of my dao queries. And it works, but cache doesn't expire. What I'm doing wrong?
My ehcache.xml:
<config xmlns='http://www.ehcache.org/v3'
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns:jsr107="http://www.ehcache.org/v3/jsr107"
xsi:schemaLocation="http://www.ehcache.org/v3 http://www.ehcache.org/schema/ehcache-core-3.0.xsd
http://www.ehcache.org/v3/jsr107 http://www.ehcache.org/schema/ehcache-107-ext-3.0.xsd">
<cache alias="test">
<key-type>java.lang.String</key-type>
<value-type>xxx.model.SignalValueType</value-type>
<expiry>
<ttl unit="seconds">5</ttl>
</expiry>
<resources>
<heap unit="entries">100</heap>
<offheap unit="MB">10</offheap>
</resources>
</cache>
</config>
In application.properties I have entry:
spring.cache.jcache.config=classpath:ehcache.xml
In pom:
<dependency>
<groupId>javax.cache</groupId>
<artifactId>cache-api</artifactId>
<scope>runtime</scope>
</dependency>
<dependency>
<groupId>org.ehcache</groupId>
<artifactId>ehcache</artifactId>
</dependency>
And my query:
@Cacheable(value = "test", key = "#code")
@Override
public SignalValueType getSignalValueType(String code) {
SignalValueType signalType = (SignalValueType) sf.getCurrentSession()
.createQuery("FROM SignalValueType svt WHERE svt.code = :code").setParameter("code", code)
.uniqueResult();
return signalType;
}
I expect 5 seconds expiring, but after this time (and longer) query is still cached. What I'm doing wrong?
不应该是ehcache
而不是jcache
?
spring.cache.ehcache.config= {ehcache config location}
In case this helps anyone else, in my case what I was missing was the spring-boot-starter-cache
dependency. Without that dependency, caching was working but no expiration was happening as without the customizations from spring-boot
, spring was probably caching using a ConcurrentHashMap
instead of ehcache
, as mentioned in this caching guide . All the gradle dependencies I needed to add are below:
implementation group: 'org.springframework.boot', name: 'spring-boot-starter-cache'
implementation group: 'org.ehcache', name: 'ehcache'
implementation group: 'javax.cache', name: 'cache-api'
implementation group: 'javax.xml.bind', name: 'jaxb-api', version: '2.3.1' // To read XML config
implementation group: 'com.sun.xml.bind', name: 'jaxb-impl', version: '2.3.6' // To read XML config
A sample application that successfully caches and expires entries using ehcache can be found on github
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