我使用带有 InnoDB 引擎的 OpenEjb 4.5.0 和 MySQL 5.5.xx。
我有一个非常简单的无状态 bean,带有注入的 EntityManagerFactory
@PersistenceUnit
private EntityManagerFactory factory
我正在做如下交易:
EntityManager em = factory.createEntityManager();
EntityTransaction tx = em.getTransaction();
try {
tx.begin();
Query query = em.createNativeQuery("INSERT IGNORE INTO `myTable` (myColumn) values (1)");
query.executeUpdate();
tx.commit();
} catch (RuntimeException re) {
if (tx.isActive())
tx.rollback();
} finally {
em.close();
}
使用以下配置:
persistence.xml:
<persistence version="1.0" xmlns="http://java.sun.com/xml/ns/persistence"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://java.sun.com/xml/ns/persistence http://java.sun.com/xml/ns/persistence/persistence_1_0.xsd">
<persistence-unit name="ejbPU-ro" transaction-type="RESOURCE_LOCAL">
<provider>org.apache.openjpa.persistence.PersistenceProviderImpl</provider>
<non-jta-data-source>mySQLDataSource</non-jta-data-source>
<exclude-unlisted-classes>false</exclude-unlisted-classes>
<properties>
<property name="openjpa.jdbc.SynchronizeMappings" value="buildSchema(foreignKeys=true"/>
<property name="openjpa.jdbc.SchemaFactory" value="native(foreignKeys=true)"/>
<property name="openjpa.Log" value="DefaultLevel=TRACE,SQL=TRACE"/>
</properties>
</persistence-unit>
</persistence>
openejb.xml(仅数据源定义):
<Resource id="mySQLDataSource" type="DataSource">
JdbcDriver com.mysql.jdbc.Driver
JdbcUrl jdbc:mysql://127.0.0.1:3307/myDb?relaxAutoCommit=true
UserName root
Password
</Resource>
运行我的小程序,我得到以下异常:
org.apache.openjpa.persistence.RollbackException: Commit can not be set while enrolled in a transaction
一些挖掘,实际原因是 dbcpManagedConnection.commit
抛出异常,如果transactionContext != null
任何方向/提示将不胜感激。
谢谢,
阿维拉姆