Spring Ehcache3 导致键类型和值类型异常

我尝试使用ehcache3使用 spring 4.3 进行项目。 我配置了缓存管理器：

<cache:annotation-driven />
<bean id="cacheManager" class="org.springframework.cache.jcache.JCacheCacheManager">
        <property name="cacheManager">
            <bean class="org.springframework.cache.jcache.JCacheManagerFactoryBean">
               <property name="cacheManagerUri" value="classpath:ehcache.xml"/>
            </bean>
        </property>
</bean>

And ehcache.xml:

<config
        xmlns:xsi='http://www.w3.org/2001/XMLSchema-instance'
        xmlns='http://www.ehcache.org/v3'
        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" >
    <service>
        <jsr107:defaults enable-statistics="true" enable-management="true"/>
    </service>
    <cache alias="customerSettings">
        <key-type>java.lang.Long</key-type>
        <expiry>
            <none/>
        </expiry>
        <resources>
            <heap>500</heap>
        </resources>
    </cache>
</config>

但是当我部署项目时，我遇到了一个例外：

Caused by: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'cacheManager' defined in ServletContext resource [/WEB-INF/spring/root-context.xml]: Invocation of init method failed; nested exception is java.lang.IllegalArgumentException: Cache [customerSettings] specifies key/value types. Use getCache(String, Class, Class)
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1628)
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:555)
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:483)
    at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:306)
    at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:230)
    at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:302)
    at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:197)
    at org.springframework.beans.factory.support.BeanDefinitionValueResolver.resolveReference(BeanDefinitionValueResolver.java:351)
    ... 100 more
Caused by: java.lang.IllegalArgumentException: Cache [customerSettings] specifies key/value types. Use getCache(String, Class, Class)
    at org.ehcache.jsr107.Eh107CacheManager.getCache(Eh107CacheManager.java:297)
    at org.springframework.cache.jcache.JCacheCacheManager.loadCaches(JCacheCacheManager.java:105)
    at org.springframework.cache.support.AbstractCacheManager.initializeCaches(AbstractCacheManager.java:61)
    at org.springframework.cache.support.AbstractCacheManager.afterPropertiesSet(AbstractCacheManager.java:50)
    at org.springframework.cache.jcache.JCacheCacheManager.afterPropertiesSet(JCacheCacheManager.java:97)
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.invokeInitMethods(AbstractAutowireCapableBeanFactory.java:1687)
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1624)
    ... 107 more

如果我删除：

<key-type>java.lang.Long</key-type>

它工作正常，但是缓存的 keyType 是 Object， 我需要做什么才能使用自己的键类型和值类型？

Spring缓存没有类型化 https://github.com/spring-projects/spring-framework/blob/47a7475898fc918e2f945206e3364bdaab2bb39f/spring-context-support/src/main/java/org/springframework/cache/jcache/JCacheCacheManager.java#L112，所以它没有使用类型化 APIJcache（javax.cache / JSR-107 缓存 API） https://www.jcp.org/en/jsr/detail?id=107

现在，由于您在 ehcache.xml 中指定了类型，Ehcache 拒绝让 Spring 使用 getCache() 的非类型签名

你想一想，如果让Spring使用Ehcache（例如通过 @CacheResult 和其他 JCache 注释 https://spring.io/blog/2014/04/14/cache-abstraction-jcache-jsr-107-annotations-support），你必须让它为你选择什么是键和值类型——不再是你应该指定类型。