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我需要一些帮助。我在使用休眠和弹簧的事务时遇到问题。我正在尝试填写 mysql 中的文件表。我的第一个插入效果很好,第二个不起作用(但这是正常的......)。但是第一个插入的数据仍然存在于表中。这不符合交易的概念。我可以吗?

我认为第二次尝试在数据库中插入损坏的数据时应该执行回滚(损坏的数据是指与字段约束不匹配的数据) insert 应该是回滚的,并且表中不应存在任何数据。或者事实并非如此。第一个数据,来自第一个插入仍然在表中。它不应该仍然存在吗?

我试图查看已检查/未检查的异常内容,@transactionnal 的错误配置但没有成功...

如果你有任何想法...

谢谢 !!

主.java:

    public static void main( String[] args ) throws Exception{

            ApplicationContext appContext = new ClassPathXmlApplicationContext(    "classpath:webConfiguration/applicationContext.xml");

            FileBo aFileBo = (FileBo) appContext.getBean("fileBo");
// Data are ok, there is an insert.
File aFile = File (6778687,".bam");             
aFileBo.save(aFile);

// Error is produce here because the ".pdf" value is not tolerated in the enum field we want to fill up. No data is inserted. But a rollback should be done and data inserted before should be erased ?
File anAnotherFile = File (6567887,".pdf");             
aFileBo.save(anAnotherFile);

}

FileBoImpl.java

public class FileBoImpl implements FileBo{
FileDao fileDao;


public FileDao getFileDao() {
    return fileDao;
}


public void setFileDao(FileDao fileDao) {
    this.fileDao = fileDao;
}

@Transactional// one transaction for multiple operations
public void save(com.clb.genomic.lyon.model.File aFile) {

 fileDao.save(aFile);
}

休眠.xml:

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns:tx="http://www.springframework.org/schema/tx"
xmlns:context="http://www.springframework.org/schema/context"
xsi:schemaLocation="http://www.springframework.org/schema/context
http://www.springframework.org/schema/context/spring-context-3.2.xsd
http://www.springframework.org/schema/tx 
http://www.springframework.org/schema/tx/spring-tx-3.2.xsd
http://www.springframework.org/schema/beans 
http://www.springframework.org/schema/beans/spring-beans-3.2.xsd " >

<!-- Hibernate session factory -->
<bean id="sessionFactory"  class="org.springframework.orm.hibernate4.LocalSessionFactoryBean">

<property name="dataSource">
  <ref bean="dataSource"/>
</property>

<property name="hibernateProperties">
   <props>
     <prop key="hibernate.dialect">org.hibernate.dialect.MySQLDialect</prop>
     <prop key="hibernate.show_sql">true</prop>
   </props>
 </property>

 <property name="mappingResources">
   ...
  </property>

</bean>

 <tx:annotation-driven transaction-manager="transactionManager" /> 

<bean id="transactionManager" class="org.springframework.orm.hibernate4.HibernateTransactionManager">
<property name="sessionFactory" ref="sessionFactory"></property>

</bean> 

在 applicationContext.xml 中调用的 Beans.xml 也带有 Hibernate.xml :

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" 
xmlns:tx="http://www.springframework.org/schema/tx"
xmlns:context="http://www.springframework.org/schema/context"
xsi:schemaLocation="http://www.springframework.org/schema/context
http://www.springframework.org/schema/context/spring-context-3.2.xsd
http://www.springframework.org/schema/tx 
http://www.springframework.org/schema/tx/spring-tx-3.2.xsd
http://www.springframework.org/schema/beans 
http://www.springframework.org/schema/beans/spring-beans-3.2.xsd">


<!--  Data Access Object -->

<bean id="fileDao" class="com.clb.genomic.lyon.dao.FileDaoImpl" >
    <property name="sessionFactory" ref="sessionFactory"></property>
</bean> 

<!--  Business Object  -->

<bean id="fileBo" class="com.clb.genomic.lyon.bo.FileBoImpl" >
    <property name="fileDao" ref="fileDao"></property>
</bean> 

</beans>
4

1 回答 1

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您在这里使用了两个单独的事务:一个用于保存第一个文件,另一个用于保存第二个文件。因此,当第二个回滚时,第一个已经提交。

如果您希望两个保存成为同一事务的一部分,那么您应该从 main 调用单个事务方法,并从此方法保存两个文件:

public static void main( String[] args ) throws Exception{
    ApplicationContext appContext = new ClassPathXmlApplicationContext(    "classpath:webConfiguration/applicationContext.xml");

    FileBo aFileBo = (FileBo) appContext.getBean("fileBo");
    // Data are ok, there is an insert.
    File aFile = File (6778687,".bam");    
    File anAnotherFile = File (6567887,".pdf");  

    aFileBo.save(aFile, anotherFile);
}

public class FileBoImpl implements FileBo {
    FileDao fileDao;
    // ...

    @Transactional
    public void save(com.clb.genomic.lyon.model.File aFile, 
                     com.clb.genomic.lyon.model.File bFile) {

        fileDao.save(aFile);
        fileDao.save(bFile);

    }
}
于 2013-07-23T08:16:32.277 回答