关于persistence.xml问题,急!!!!!!!!!!!!!!!
<?xml version="1.0" encoding="UTF-8"?>
<persistence 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"
version="1.0">
<persistence-unit name="szkappPU"
transaction-type="RESOURCE_LOCAL">
<provider>org.hibernate.ejb.HibernatePersistence</provider>
<properties>
<property name="hibernate.connection.driver_class"
value="org.postgresql.Driver" />
<property name="hibernate.connection.url"
value="jdbc:postgresql://localhost:5432/szkapp" />
<property name="hibernate.connection.username"
value="postgres" />
<property name="hibernate.connection.password"
value="postgres" />
</properties>
</persistence-unit>
</persistence>
红色连接数据部分,怎么能用properties文件加载。