org.hibernate.HibernateException:如果没有活动事务,保存无效 [英] org.hibernate.HibernateException: save is not valid without active transaction

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问题描述

我正在创建 JSF 应用程序,并在其中使用一些休眠的东西。所有我想要做的是将实体保存到数据库中,但我一直得到这个异常:

  org.hibernate.HibernateException:保存在没有活动事务的情况下无效

起初我得到这个异常:

  org.hibernate.HibernateException:没有配置CurrentSessionContext! 

然后我发现我需要将它添加到我的hibernate配置中:

 < property name =hibernate.current_session_context_class>线程< / property> 

这解决了这个问题,但是现在出现了上述问题。
我正在将实体保存到数据库中,如下所示:

  public void create(T entity){
getSessionFactory ().getCurrentSession()保存(实体)。
}

我的hibernate.cfg.xml文件如下所示:

 < hibernate-configuration> 
< session-factory>
< property name =hibernate.dialect> org.hibernate.dialect.MySQLDialect< / property>
< property name =hibernate.connection.driver_class> com.mysql.jdbc.Driver< / property>
< property name =hibernate.connection.url> jdbc:mysql:// localhost:3306 / online_tests_management< / property>
< property name =hibernate.connection.username>根< / property>
< property name =hibernate.connection.password>根< / property>
< property name =hibernate.show_sql> true< / property>
< property name =hibernate.hbm2ddl.auto>更新< / property>
< property name =hibernate.current_session_context_class>线程< / property>

< mapping class =com.groupgti.onlinetests.management.db.Service/>
< / session-factory>
< / hibernate-configuration>

我正在使用:


  • Hibernate-4.1.4.Final

  • JDK 1.6

  • Tomcat 6

  • JSF 2.0

  • PrimeFaces 3.3.1

  • MySql



有人知道问题出在哪里吗?

解决方案

您必须调用 session.beginTransaction()

  public void create(T entity){
Session session = getSessionFactory()。的getCurrentSession();
Transaction trans = session.beginTransaction();
session.save(entity);
trans.commit();
}


I am creating JSF application and using some hibernate stuff in it. All I want to do is to save the entity into the database but I keep getting this exception:

org.hibernate.HibernateException: save is not valid without active transaction

At first I was getting this exception:

org.hibernate.HibernateException: No CurrentSessionContext configured!

Then I found that I need to add this into my hibernate configuration:

<property name="hibernate.current_session_context_class">thread</property>

This solved this issue but now the above one appears. I am saving entity into database like this:

public void create(T entity) {
    getSessionFactory().getCurrentSession().save(entity);
}

My hibernate.cfg.xml file looks like this:

<hibernate-configuration>
    <session-factory>
        <property name="hibernate.dialect">org.hibernate.dialect.MySQLDialect</property>
        <property name="hibernate.connection.driver_class">com.mysql.jdbc.Driver</property>
        <property name="hibernate.connection.url">jdbc:mysql://localhost:3306/online_tests_management</property>
        <property name="hibernate.connection.username">root</property>
        <property name="hibernate.connection.password">root</property>
        <property name="hibernate.show_sql">true</property>
        <property name="hibernate.hbm2ddl.auto">update</property>
        <property name="hibernate.current_session_context_class">thread</property>

        <mapping class="com.groupgti.onlinetests.management.db.Service"/>
    </session-factory>
</hibernate-configuration>

I am using:

  • Hibernate-4.1.4.Final
  • JDK 1.6
  • Tomcat 6
  • JSF 2.0
  • PrimeFaces 3.3.1
  • MySql

Does someone know where might be the problem?

解决方案

You have to call session.beginTransaction()

public void create(T entity) {
   Session session=getSessionFactory().getCurrentSession();
   Transaction trans=session.beginTransaction();
   session.save(entity);
   trans.commit();
}

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