迁移，Hibernate的3.6.3-JPA应用到Hibernate 4

Question

你好，我想迁移的Hibernate 3.6.3应用到Hibernate 4，我收到以下错误：

Invalid property 'dataSource' of bean class 
[org.springframework.orm.jpa.LocalEntityManagerFactoryBean]: 
Bean property 'dataSource' is not writable or has an invalid 
setter method. Does the parameter type of the setter match the 
return type of the getter? 

我已经看了这个帖子： integrating JPA and SpringIOc

当我使用LocalEntityManagerFactoryBean负责我得到上面提到的错误，但是当我使用LocalContainerEntityManagerFactoryBean我创造我的DAO bean时得到一个错误。

我认为这是spring.orm依赖配置的问题，但我不确定，因为我所做的所有依赖项更改都不起作用。

我在哪里可以找到Hibernate 4迁移指南，以适应我的JPA，Hibernate 3.6.3和Spring应用程序？

Answer 1

按照Documentation

This EntityManagerFactory bootstrap is appropriate for standalone applications which solely use JPA for data access. If you want to set up your persistence provider for an external DataSource and/or for global transactions which span multiple resources, you will need to either deploy it into a full Java EE 5 application server and access the deployed EntityManagerFactory via JNDI, or use Spring's LocalContainerEntityManagerFactoryBean with appropriate configuration for local setup according to JPA's container contract.

这意味着你可能需要使用LocalContainerEntityManagerFactoryBean代替LocalEntityManagerFactoryBean

<bean id="entityManager" class="org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean"> 
    <property name="dataSource" ref="myDataSource" /> 
    .... 
    .... 
</bean> 

例：