2012-08-28 161 views
1

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)

+1

抛出什么错误? –

回答

1

我发现了什么问题了!这么简单,但花了我的时间。我有<?xml version="1.0" encoding="UTF-8">而不是我应该有<?xml version="1.0" encoding="UTF-8"?>

谢谢你的时间。