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
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:
有人知道问题出在哪里吗?
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?
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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