我已经在Amazon EC2上使用MySQL运行的工作弹簧休眠中的应用。 我想我的移植应用谷歌应用程序引擎如谷歌现在支持MySQL与谷歌可能的SQL。
所以，配置我现有的应用程序谷歌App Engine的Web应用程序，然后编译代码没有任何错误。 我没有改变任何东西到我的现有应用程序和编译，还创建了所需的表和服务器成功启动。
但是，运行应用程序，通过休眠访问数据库时，我收到以下错误。
org.springframework.transaction.CannotCreateTransactionException: Could not open Hibernate Session for transaction; nested exception is org.hibernate.exception.JDBCConnectionException: Cannot open connection
at org.springframework.orm.hibernate3.HibernateTransactionManager.doBegin(HibernateTransactionManager.java:596)
at org.springframework.transaction.support.AbstractPlatformTransactionManager.getTransaction(AbstractPlatformTransactionManager.java:371)
at org.springframework.transaction.interceptor.TransactionAspectSupport.createTransactionIfNecessary(TransactionAspectSupport.java:335)
at org.springframework.transaction.interceptor.TransactionInterceptor.invoke(TransactionInterceptor.java:105)
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)
at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:202)
at $Proxy30.findById(Unknown Source)
at com.openentry.catgen.services.impl.WebsiteServiceImpl.getMasterDomain(WebsiteServiceImpl.java:99)
我使用的标注为我的实体类。
有什么我需要改变这个？
下面是我的applicationContext.xml
<bean id="dataSource"
class="org.springframework.jdbc.datasource.DriverManagerDataSource"
p:driverClassName="${jdbc.driverClassName}" p:url="${jdbc.url}"
p:username="${jdbc.username}" p:password="${jdbc.password}" />
<bean id="sessionFactory"
class="org.springframework.orm.hibernate3.annotation.AnnotationSessionFactoryBean"
p:dataSource-ref="dataSource" p:configurationClass="org.hibernate.cfg.AnnotationConfiguration"
p:packagesToScan="com.package.app.entities">
<property name="hibernateProperties">
<props>
<prop key="hibernate.dialect">${hibernate.dialect}</prop>
<prop key="hibernate.show_sql">${hibernate.show_sql}</prop>
<prop key="hibernate.format_sql">${hibernate.format_sql}</prop>
<prop key="hibernate.generate_statistics">${hibernate.generate_statistics}</prop>
<prop key="hibernate.connection.useUnicode">${hibernate.connection.useUnicode}</prop>
<prop key="hibernate.connection.characterEncoding">${hibernate.connection.characterEncoding}</prop>
<prop key="hibernate.connection.charSet">${hibernate.connection.charSet}</prop>
<prop key="hibernate.hbm2ddl.auto">${hibernate.hbm2ddl.auto}</prop>
</props>
</property>
</bean>
<tx:annotation-driven />
<bean id="transactionManager"
class="org.springframework.orm.hibernate3.HibernateTransactionManager"
p:sessionFactory-ref="sessionFactory" />
<bean id="hibernateTemplate" class="org.springframework.orm.hibernate3.HibernateTemplate">
<constructor-arg>
<ref bean="sessionFactory" />
</constructor-arg>
</bean>
