我想用JPA和Spring连接到MySQL数据库。我对Spring很陌生。此外JPA Spring MVC配置
<jee:jndi-lookup id="myEmf" jndi-name="hello-world"/>
<bean id="myEmf" class="org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean">
<property name="dataSource" ref="myEmf"/>
<property name="loadTimeWeaver">
<bean class="org.springframework.instrument.classloading.InstrumentationLoadTimeWeaver"/>
</property>
</bean>
这里是我的persistence.xml,我的持久性单元名称是“你好,世界”:
我已经加入这个我的配置文件,所有的豆类定义。
<persistence-unit name="hello-world" transaction-type="RESOURCE_LOCAL">
org.hibernate.ejb.HibernatePersistence
当我尝试实例化对象,它引发了我的错误。
谢谢, 莎拉。
更新,错误:
2012/08/28 23-25-56,993:8a4cd57fec4d0:ERR:ERROR[Error parsing XML: XML InputStream(1) A pseudo attribute name is expected.] 2012-08-28 23:25:56,994 ERROR [org.apache.catalina.core.ContainerBase.[Catalina].[localhost].[/sara].[jsp]:704] : Servlet.service() for servlet jsp threw exception javax.persistence.PersistenceException: Unable to configure EntityManagerFactory at org.hibernate.ejb.Ejb3Configuration.configure(Ejb3Configuration.java:265) at org.hibernate.ejb.HibernatePersistence.createEntityManagerFactory(HibernatePersistence.java:125) at javax.persistence.Persistence.createEntityManagerFactory(Persistence.java:52) at javax.persistence.Persistence.createEntityManagerFactory(Persistence.java:34) at com.paypal.sara.sara.web.sample.mvc.Main.getPoints(Main.java:21) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:37) at java.lang.reflect.Method.invoke(Method.java:599) at org.apache.commons.el.ArraySuffix.evaluate(ArraySuffix.java:314) at org.apache.commons.el.ComplexValue.evaluate(ComplexValue.java:145) at org.apache.commons.el.ExpressionEvaluatorImpl.evaluate(ExpressionEvaluatorImpl.java:263) at org.apache.commons.el.ExpressionEvaluatorImpl.evaluate(ExpressionEvaluatorImpl.java:190)
抛出什么错误? –