Spring Boot + JPA2 + Hibernate - 启用二级缓存

问题描述

我使用JPA2的Spring Boot 1.2.5来注释实体（而hibernate是底层的JPA实现）。

我想使用二级缓存因此实体被注解为 @ javax.persistence.Cacheable

我还在application.properties中添加了以下内容：

  spring.jpa.properties.hibernate.cache.use_second_level_cache = true 
 spring.jpa.properties.hibernate.cache .use_query_cache = true 
 spring.jpa.properties.hibernate.cache.region.factory_class = org.hibernate.cache.ehcache.EhCacheRegionFactory 
  

在启动过程中，hibernate抱怨缺少 EhCacheRegionFactory ，所以我也将它添加到了pom中：

 < dependency> 
< groupId> org.hibernate< / groupId> 
< artifactId> hibernate-ehcache< / artifactId> 
< /依赖关系> 
  

但是像 entityManager.find（Clazz.class，pk）正在触发数据库查询，而不是使用缓存数据。

任何想法缺少什么？

解决方案

在经过一些更深入的挖掘之后，我在 application.properties 中缺少了什么：

  spring.jpa.properties.javax.persistence.sharedCache.mode = ALL 
  

希望它能帮助某人：）

I'm using Spring Boot 1.2.5 with JPA2 to annotate entities (and hibernate as underlaying JPA implementation).

I wanted to use second level cache in that setup, so entities were annotated with @javax.persistence.Cacheable

I also added following in application.properties:

spring.jpa.properties.hibernate.cache.use_second_level_cache=true
spring.jpa.properties.hibernate.cache.use_query_cache=true
spring.jpa.properties.hibernate.cache.region.factory_class=org.hibernate.cache.ehcache.EhCacheRegionFactory

During bootup hibernate complained about lack of EhCacheRegionFactory so I also added this to pom:

<dependency>
    <groupId>org.hibernate</groupId>
    <artifactId>hibernate-ehcache</artifactId>
</dependency>

But still queries like entityManager.find(Clazz.class, pk) are firing DB query instead of using cached data.

Any idea what is missing?

解决方案

Well after some more digging here's what I was missing in application.properties:

spring.jpa.properties.javax.persistence.sharedCache.mode=ALL

Hope it helps someone :)

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