Hibernate4.3.9final FAQ Summary

Hibernate4 the next available hibernate.properties:

Jdbc.driverclassname=Com.mysql.jdbc.Driverjdbc.url=jdbc:mysql://localhost:3306/hibernate?characterencoding=utf-8Jdbc.username=Usernamejdbc.password=Passwordhibernate.dialect=org.hibernate.dialect.mysqldialect<!--Enable Hibernate ' s automatic session context management--># Hibernate.current_session_context_class=Threadhibernate.current_session_context_class=Org.springframework.orm.hibernate4.SpringSessionContext <!--start Cache query--hibernate.cache.use_ Query_cache=truehibernate.jdbc.batch_size=50<!--set second level-to Hibernate.cache.use_second_level_cache=True#hibernate.cache.region.factory_class=Org.hibernate.cache.ehcache.ehcacheregionfactory#hibernate.cache.provider_class=org.hibernate.cache.ehcache.EhCacheRegionFactory//Hibernate3hibernate.cache.provider_class=Org.hibernate.cache.spi.RegionFactoryhibernate.cache.region.factory_class=org.hibernate.cache.ehcache.ehcacheregionfactory<!--Drop and re-create the database schema on startup--Hib Ernate.hbm2ddl.auto=update<!--Echo all executed SQL to stdout-hibernate.show_sql=true

Related configurations in Pom.xml:

    <properties>        
Configuration for level two cache in Hibernate.properpties:
Hibernate.cache.use_second_level_cache=true
hibernate.cache.provider_class=org.hibernate.cache.spi.RegionFactory
hibernate.cache.region.factory_class=org.hibernate.cache.ehcache.EhCacheRegionFactory
Error message:
caused by:org.hibernate.HibernateException:could not instantiate regionfactory [ Org.hibernate.cache.ehcache.EhCacheRegionFactory]
At Org.hibernate.cache.internal.RegionFactoryInitiator.initiateService (regionfactoryinitiator.java:101)
At Org.hibernate.cache.internal.RegionFactoryInitiator.initiateService (regionfactoryinitiator.java:46)
At Org.hibernate.boot.registry.internal.StandardServiceRegistryImpl.initiateService ( standardserviceregistryimpl.java:105)
At Org.hibernate.service.internal.AbstractServiceRegistryImpl.createService (Abstractserviceregistryimpl.java : 251)
... More
caused By:org.hibernate.boot.registry.selector.spi.StrategySelectionException:Unable to resolve name [ Org.hibernate.cache.ehcache.EhCacheRegionFactory] as strategy [org.hibernate.cache.spi.RegionFactory]
At Org.hibernate.boot.registry.selector.internal.StrategySelectorImpl.selectStrategyImplementor ( strategyselectorimpl.java:128)
At Org.hibernate.cache.internal.RegionFactoryInitiator.initiateService (regionfactoryinitiator.java:87)
... More
Causes and solutions:
Missing Jar:hibernate-ehcache
Add to:
        <dependency>            <groupId>org.hibernate</groupId>            <artifactid>hibernate-ehcache </artifactId>            <version>${hibernate-version}</version>        </dependency>


Org.hibernate.HibernateException:save is not valid without active transaction
At Org.hibernate.context.internal.threadlocalsessioncontext$transactionprotectionwrapper.invoke ( threadlocalsessioncontext.java:352)
At Com.sun.proxy. $Proxy 24.save (Unknown Source)
At Com.xx.dao.BaseDao.save (basedao.java:31)
For an error that prompts * * are not valid without active transaction
You can make the following changes in Hibernate's configuration file
<prop key= "Hibernate.current_session_context_class" > Org.springframework.orm.hibernate4.springsessioncontext</prop> (HIBERNATE4)
For hibernate3.x, you can directly remove the above settings, there will be no error, the specific reasons are unclear.
Note: Almost all normal operations must be performed under the transcation.isactive () condition. Get,load,save, saveorupdate,list all belong to this category.
http://blog.csdn.net/wzk527/article/details/8543480
Log printing:
Add slf4j jars, such as log4j, with optional Slf4j-api.jar and Slf4j-log4j12.jar
Hibernate4.3.9final FAQ Summary