Java 无法创建OpenJPAEntityManagerFactory
我已经创建了支持JPA2.0的OSGI捆绑包项目。我使用OpenJpa作为JPA提供者。当我运行包时,我无法创建OpenJPAEntityManagerFactory。请修改我用来创建OpenJPAEntityManagerFactory的代码Java 无法创建OpenJPAEntityManagerFactory,java,osgi,openjpa,osgi-bundle,Java,Osgi,Openjpa,Osgi Bundle,我已经创建了支持JPA2.0的OSGI捆绑包项目。我使用OpenJpa作为JPA提供者。当我运行包时,我无法创建OpenJPAEntityManagerFactory。请修改我用来创建OpenJPAEntityManagerFactory的代码 OpenJPAEntityManagerFactory emf = OpenJPAPersistence.createEntityManagerFactory( "StudentServiceProvide
OpenJPAEntityManagerFactory emf = OpenJPAPersistence.createEntityManagerFactory(
"StudentServiceProvider",
"META-INF/persistence.xml");
persistence.xml
<?xml version="1.0" encoding="UTF-8"?>
<persistence version="2.0"
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_2_0.xsd">
<persistence-unit name="StudentServiceProvider">
<provider>org.apache.openjpa.persistence.PersistenceProviderImpl</provider>
<class>com.student.serviceprovider.model.Student</class>
<exclude-unlisted-classes>false</exclude-unlisted-classes>
<properties>
<property name="openjpa.ConnectionURL" value="jdbc:mysql://localhost:3306/NYL" />
<property name="openjpa.ConnectionDriverName" value="com.mysql.jdbc.Driver" />
<property name="openjpa.ConnectionUserName" value="root" />
<property name="openjpa.ConnectionPassword" value="root" />
<property name="openjpa.Log" value="DefaultLevel=WARN, Tool=INFO" />
<property name="openjpa.RuntimeUnenhancedClasses" value="supported" />
<property name="openjpa.Log" value="DefaultLevel=WARN, Tool=INFO" />
<!-- To avoid foreign key issues -->
<property name="openjpa.jdbc.SchemaFactory" value="native(ForeignKeys=true)" />
<!-- Auto create tables -->
<property name="jdbc.SynchronizeMappings" value="buildSchema(ForeignKeys=true)" />
</properties>
</persistence-unit>
</persistence>
org.apache.openjpa.persistence.PersistenceProviderImpl
com.student.serviceprovider.model.student
假的
在src文件夹中,我有META-INF,我在其中创建了persistence.xml(META-INF/persistennce.xml)
请让我知道如何解决此问题。如果您列出了所得到的错误,可能会有所帮助,但这可能是因为您有两行代码:
<property name="openjpa.Log" value="DefaultLevel=WARN, Tool=INFO" />
这只是暗中捅了一刀,因为您没有提到错误是什么,而我恰好收到一条错误消息,即“等效属性键”openjpa.Log“和“Log”在配置中被指定。“对于我正在处理的东西。仍然存在同样的问题。我用OPenJpa创建了JPA项目(不是捆绑包),它在相同的配置下运行良好。当我创建包时,我面临这个问题。请帮我找出问题所在