【发布时间】:2023-03-03 04:38:01
【问题描述】:
我在运行我的 Rest Spring 启动应用程序时遇到以下异常。
Second-level cache is used in the application, but property hibernate.cache.region.factory_class is not given; please either disable second level cache or set correct region factory using the hibernate.cache.region.factory_class setting and make sure the second level cache provider (hibernate-infinispan, e.g.) is available on the classpath
我在 config 目录中有 application.properties 和 ehcache.xml 文件。
application.properties
#Second level caching
hibernate.cache.use_second_level_cache=true
hibernate.cache.region.factory_class=org.hibernate.cache.ehcache.EhCacheRegionFactory
logging.level.org.hibernate.SQL=DEBUG
logging.level.org.hibernate.type.descriptor.sql.BasicBinder=TRACE
ehcache.xml
<?xml version="1.0" encoding="UTF-8"?>
<ehcache>
<defaultCache eternal="true" maxElementsInMemory="1000" overflowToDisk="false"/>
<cache name="simpleCache" maxElementsInMemory="100" eternal="true" overflowToDisk="false" />
</ehcache>
实体类:-
import org.hibernate.annotations.CacheConcurrencyStrategy;
import javax.persistence.Column;
import java.util.Date;
import javax.persistence.Cacheable;
import javax.persistence.Table;
import javax.persistence.Id;
import javax.persistence.GeneratedValue;
import javax.persistence.GenerationType;
import javax.persistence.Index;
import javax.persistence.Entity;
import javax.persistence.Temporal;
import javax.persistence.TemporalType;
import org.hibernate.annotations.Cache;
import org.hibernate.annotations.CacheConcurrencyStrategy;
@Entity
@Cacheable
@Cache(usage = CacheConcurrencyStrategy.READ_WRITE, region = "simpleCache")
build.gradle
dependencies {
compile('org.springframework.boot:spring-boot-starter-actuator')
compile('org.springframework.boot:spring-boot-starter-data-jpa')
compile('org.springframework.boot:spring-boot-starter-web')
runtime('org.springframework.boot:spring-boot-devtools')
// https://mvnrepository.com/artifact/org.hibernate/hibernate-ehcache
compile group: 'org.hibernate', name: 'hibernate-ehcache', version: '4.0.1.Final'
// https://mvnrepository.com/artifact/net.sf.ehcache/ehcache-core
compile group: 'net.sf.ehcache', name: 'ehcache-core', version: '2.5.0'
runtime('org.postgresql:postgresql')
testCompile('org.springframework.boot:spring-boot-starter-test')
}
如果我删除实体中的“@Cache 行”并将“@Cacheable”更改为“@Cacheable(true)”,我不会收到错误消息。但在这种情况下,每次我从数据库中获取未更改的实体数据。正在触发查询。
任何帮助将不胜感激!
【问题讨论】:
标签: java hibernate spring-boot ehcache second-level-cache