我使用Toplink在meta-INF目录下使用相同的名称。那我的代码如下:
EntityManagerFactory emfdb = Persistence.createEntityManagerFactory("agisdb");
但是,我收到了以下错误消息
2009-07-21 09:22:41,018 [main] ERROR - No Persistence provider for EntityManager named agisdb
javax.persistence.PersistenceException: No Persistence provider for EntityManager named agisdb
at javax.persistence.Persistence.createEntityManagerFactory(Persistence.java:89)
at javax.persistence.Persistence.createEntityManagerFactory(Persistence.java:60)
这里是Persistence.xml..。
<?xml version="1.0" encoding="UTF-8"?>
<persistence xmlns="http://java.sun.com/xml/ns/persistence" version="1.0">
<persistence-unit name="agisdb">
<class>com.agis.livedb.domain.AddressEntity</class>
<class>com.agis.livedb.domain.TrafficCameraEntity</class>
<class>com.agis.livedb.domain.TrafficPhotoEntity</class>
<class>com.agis.livedb.domain.TrafficReportEntity</class>
<properties>
<property name="toplink.jdbc.url" value="jdbc:mysql://localhost:3306/agisdb"/>
<property name="toplink.jdbc.driver" value="com.mysql.jdbc.Driver"/>
<property name="toplink.jdbc.user" value="root"/>
<property name="toplink.jdbc.password" value="password"/>
</properties>
</persistence-unit>
</persistence>
发布于 2018-03-27 14:22:05
把"hibernate-entitymanager.jar"
在应用程序的类路径中。
对于较新的版本,应使用"hibernate-core.jar"
而不是被反对的人hibernate-entitymanager
如果您正在运行某个IDE,比如Eclipse:Project Properties -> Java Build Path -> Libraries.
否则,将其放入/lib
你的申请。
https://stackoverflow.com/questions/-100007810
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