Question

我尝试部署一个项目，其中EclipseLink JPA在OSGI平台上用作ORM工具。在OSGI容器外部运行时，该项目可以正常工作。

使用的版本：Spring 2.5.6，EclipseLink 1.2.0

不幸的是，我在OSGI平台上遇到了这个错误：

Exception Description: Unable to acquire a connection from driver [null], user [null] and URL [null].  Verify that you have set the expected driver class and URL.  Check your login, persistence.xml or sessions.xml resource.  The jdbc.driver property should be set to a class that is compatible with your database platform
    at org.eclipse.persistence.internal.jpa.EntityManagerSetupImpl.deploy(EntityManagerSetupImpl.java:290)
    at org.eclipse.persistence.internal.jpa.EntityManagerFactoryImpl.getServerSession(EntityManagerFactoryImpl.java:146)
    at org.eclipse.persistence.internal.jpa.EntityManagerFactoryImpl.createEntityManagerImpl(EntityManagerFactoryImpl.java:198)
    at org.eclipse.persistence.internal.jpa.EntityManagerFactoryImpl.createEntityManager(EntityManagerFactoryImpl.java:186)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
    at java.lang.reflect.Method.invoke(Method.java:597)
    at org.springframework.orm.jpa.AbstractEntityManagerFactoryBean$ManagedEntityManagerFactoryInvocationHandler.invoke(AbstractEntityManagerFactoryBean.java:434)
    at $Proxy152.createEntityManager(Unknown Source)
    at org.springframework.orm.jpa.SharedEntityManagerCreator$SharedEntityManagerInvocationHandler.invoke(SharedEntityManagerCreator.java:190)
    at $Proxy153.find(Unknown Source)

由于未知原因，EclipseLink未检索创建并添加到org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean的数据源

欢迎任何想法？

亲切的问候，

查尔斯

Answer 1

您是否检查过数据库属性文件是否在类路径中？

确保它在那里。

Answer 2

请参阅，

http://wiki.eclipse.org/EclipseLink/Examples#OSGi_Examples

确保您可以访问DataSource并且所有OSGi和Spring配置都是正确的。

无法从驱动程序[null]，用户[null]和URL [null]获取连接。 / EclipseLink 1.2 / Spring 2.5.6 / OSGI

2 个答案: