java save方法无法使用Hibernate+Spring保存对象
我的Dao层有一个保存方法:
public void savePerson(PersonBean personBean) {
Session currentSession;
try {
currentSession = sessionFactory.getCurrentSession();
} catch (HibernateException e) {
currentSession = sessionFactory.openSession();
System.out.println("Opened Session");
}
currentSession.merge(personBean);
System.out.println("Data Saved");
}
以及应用程序上下文。xml的定义如下:
<bean id="oracleDataSource" class="org.springframework.jdbc.datasource.DriverManagerDataSource">
<property name="driverClassName"><value>oracle.jdbc.driver.OracleDriver</value>
</property>
<property name="url" value="jdbc:oracle:thin:@localhost:1521:{mylocalInstance}" />
<property name="username">
<value>PersonDataBase</value>
</property>
<property name="password">
<value>person</value>
</property>
</bean>
<bean id="sessionFactory"
class="org.springframework.orm.hibernate4.LocalSessionFactoryBean">
<property name="dataSource" ref="oracleDataSource"/>
<property name="hibernateProperties">
<props>
<prop key="hibernate.dialect">org.hibernate.dialect.Oracle10gDialect</prop>
<prop key="hibernate.show_sql">true</prop>
<prop key="hibernate.format_sql">true</prop>
<prop key="hibernate.hbm2ddl.auto">update</prop>
</props>
</property>
<property name="mappingLocations" value="PersonBean.hbm.xml" />
</bean>
<bean id="testTransactional" class="org.springframework.orm.hibernate4.HibernateTransactionManager">
<property name="sessionFactory" ref="sessionFactory"/>
</bean>
<!--<tx:annotation-driven transaction-manager="testTransactional"/>-->
<bean id="personDao" class="com.dao.PersonDaoImpl">
<property name="sessionFactory" ref="sessionFactory"/>
</bean>
<bean id="personService" class="com.service.PersonServiceImpl">
<property name="personDao" ref="personDao"/>
</bean>
它可以创建表,但数据没有保存,因为我必须显示sql,这是尝试保存时生成的sql:
INFO: Using DataSource [org.springframework.jdbc.datasource.DriverManagerDataSource@68be8808] of Hibernate SessionFactory for HibernateTransactionManager
Opened Session
Hibernate:
select
max(PERSON_ID)
from
PERSON_BEAN
Data Saved
为什么在我试图保存选择查询时会生成它
# 1 楼答案
您还需要提交事务
试试这个:
编辑
如果不想手动处理事务,也可以在Hibernate配置中将
hibernate.connection.autocommit
属性设置为true