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在hibernate和spring整合時，出現錯誤如下：

Exception in thread "main" org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'sessionFactory' defined in file [G:\workspace\s_hibernate\src\applicationContext.xml]: Invocation of init method failed; nested exception is org.hibernate.HibernateException: Error applying BeanValidation relational constraints
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1455)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:519)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:456)
at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:294)
at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:225)
at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:291)
at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:193)
at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:567)
at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:913)
at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:464)
at org.springframework.context.support.FileSystemXmlApplicationContext.<init>(FileSystemXmlApplicationContext.java:140)
at org.springframework.context.support.FileSystemXmlApplicationContext.<init>(FileSystemXmlApplicationContext.java:84)
at org.test.Test.main(Test.java:16)
Caused by: org.hibernate.HibernateException: Error applying BeanValidation relational constraints
at org.hibernate.cfg.beanvalidation.BeanValidationIntegrator.applyRelationalConstraints(BeanValidationIntegrator.java:219)
at org.hibernate.cfg.beanvalidation.BeanValidationIntegrator.integrate(BeanValidationIntegrator.java:126)
at org.hibernate.internal.SessionFactoryImpl.<init>(SessionFactoryImpl.java:306)
at org.hibernate.cfg.Configuration.buildSessionFactory(Configuration.java:1744)
at org.hibernate.cfg.Configuration.buildSessionFactory(Configuration.java:1782)
at org.springframework.orm.hibernate4.LocalSessionFactoryBuilder.buildSessionFactory(LocalSessionFactoryBuilder.java:189)
at org.springframework.orm.hibernate4.LocalSessionFactoryBean.buildSessionFactory(LocalSessionFactoryBean.java:350)
at org.springframework.orm.hibernate4.LocalSessionFactoryBean.afterPropertiesSet(LocalSessionFactoryBean.java:335)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.invokeInitMethods(AbstractAutowireCapableBeanFactory.java:1514)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1452)
... 12 more
Caused by: java.lang.reflect.InvocationTargetException
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:606)
at org.hibernate.cfg.beanvalidation.BeanValidationIntegrator.applyRelationalConstraints(BeanValidationIntegrator.java:208)
... 21 more
Caused by: org.hibernate.HibernateException: Unable to build the default ValidatorFactory
at org.hibernate.cfg.beanvalidation.TypeSafeActivator.getValidatorFactory(TypeSafeActivator.java:524)
at org.hibernate.cfg.beanvalidation.TypeSafeActivator.applyDDL(TypeSafeActivator.java:119)
... 26 more
Caused by: javax.validation.ValidationException: Unable to create a Configuration, because no Bean Validation provider could be found. Add a provider like Hibernate Validator (RI) to your classpath.
at javax.validation.Validation$GenericBootstrapImpl.configure(Validation.java:271)
at javax.validation.Validation.buildDefaultValidatorFactory(Validation.java:110)
at org.hibernate.cfg.beanvalidation.TypeSafeActivator.getValidatorFactory(TypeSafeActivator.java:521)
... 27 more
 

經過一番查詢，終於解決了這個錯誤，原因出現在applicationContext.xml配置中：

<beanid="sessionFactory"class="org.springframework.orm.hibernate3.annotation.AnnotationSessionFactoryBean">
  <propertyname="dataSource"ref="dataSource" />
 <propertyname="hibernateProperties">
   <props>
        <prop key="hibernate.show_sql">true</prop>
       <prop key="hibernate.format_sql">true</prop>
       <prop key="hibernate.dialect">org.hibernate.dialect.MySQLDialect</prop>
       <prop key="javax.persistence.validation.mode">none</prop>   
 

 </props>
  </property>
  <propertyname="packagesToScan"value="com.bolo.examples.entity.*"/>
 </bean> <prop key="javax.persistence.validation.mode">none</prop>   
 </props>
  </property>
  <propertyname="packagesToScan"value="com.bolo.examples.entity.*"/>
 </bean>

 <prop key="javax.persistence.validation.mode">none</prop>   

加入粗體加下劃線部分就沒有問題了

真是不同的版本差異比較大啊

其實這個問題是我們自己造成的！為什麼這麼說？因為我們在配置spring和Hibernate進行結合的時候版本出現了問題。

<persistence...> 
  <persistence-unit...>
   ...
   <properties>
    <property name="javax.persistence.validation.mode"
               value="callback,ddl"/>
   </properties>
 </persistence-unit>
</persistence>

這是hibernate官方文件的一段話！

意思就是在hibernate.cfg.xml或者是

persistence.xml檔案下面需要配置

javax.persistence.validation.mode屬性!

特別的！在Hibernate中預設的

<propkey="javax.persistence.validation.mode">none</prop>

是auto而不是none!

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javax.persistence.validation.mode預設情況下是auto的，就是說如果不設定的話它是會自動去你的classpath下面找一個bean-validation**包，但是找不到，所以beanvalitionFactory錯誤。

由於javax.persistence.validation.mode的屬性值預設是auto，所以會出錯。

在hibernate.cfg.xml裡將javax.persistence.validation.mode設定為none，就可以避免出錯了。

  <!-- Disable the BeanValidation-->

 <propertyname="javax.persistence.validation.mode">none</property>

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所以，Hibernate3.6以上版本在用junit測試時會提示錯誤：

Unable to get thedefault Bean Validationfactory

在hibernate.cfg.xml裡增加一屬性解決：   

<propertyname="javax.persistence.validation.mode">none</property>