SpringMVC和Hibernate：CannotCreateTransactionException：无法打开Hibernate Session进行事务处理;

我正在尝试设置和Spring MVC + Hibernate项目，但它让我疯狂。 我还会考虑建议订购xml配置文件。

我有以下文件：

• web.xml

      contextConfigLocation /WEB-INF/spring/root-context.xml    org.springframework.web.context.ContextLoaderListener    appServlet org.springframework.web.servlet.DispatcherServlet  contextConfigLocation /WEB-INF/spring/appServlet/servlet-context.xml  1   appServlet /   

• servlet-context.xml

                               classpath:hibernate.cfg.xml     org.hibernate.dialect.SQLServer2008Dialect true        

• PersonController.java

    package es.landesoft.mvctesting; import java.util.List; import java.util.Locale; import javax.validation.Valid; import org.springframework.beans.factory.annotation.Autowired; import org.springframework.stereotype.Controller; import org.springframework.ui.Model; import org.springframework.validation.BindingResult; import org.springframework.web.bind.annotation.RequestMapping; import org.springframework.web.bind.annotation.RequestMethod; import org.springframework.web.bind.annotation.RequestParam; import org.springframework.web.bind.annotation.ResponseBody; import es.landesoft.mvctesting.JavaBeans.Person; import es.landesoft.mvctesting.service.PersonService; /** * Handles requests for the application home page. */ @Controller public class PersonController { //private static final Logger logger = LoggerFactory.getLogger(PersonController.class); @Autowired private PersonService personService; @RequestMapping(value = "/person/json", method = RequestMethod.GET, produces="application/json") @ResponseBody public List getPersonJson() { return personService.listPerson(); } } 

• PersonDAO.java

  包es.landesoft.mvctesting.dao;

   import java.util.List; import es.landesoft.mvctesting.JavaBeans.Person; public interface PersonDAO { public void addContact(Person person); public List listPersons(); public void removePerson(Integer id); } 

• PersonDaoClass.java

   package es.landesoft.mvctesting.dao; import java.util.List; import org.hibernate.SessionFactory; import org.springframework.beans.factory.annotation.Autowired; import org.springframework.stereotype.Repository; import org.springframework.transaction.annotation.Transactional; import es.landesoft.mvctesting.JavaBeans.Person; @Repository public class PersonDaoClass implements PersonDAO { @Autowired private SessionFactory sessionFactory; @Transactional @Override public void addContact(Person person) { sessionFactory.getCurrentSession().save(person); } @Transactional @SuppressWarnings("unchecked") public List listPersons() { return sessionFactory.getCurrentSession() .createQuery("From Person").list(); } @Transactional public void removePerson(Integer id) { Person person = (Person) sessionFactory.getCurrentSession().load(Person.class, id); if (person != null) { sessionFactory.getCurrentSession().delete(person); } } } 

• PersonService.java

   package es.landesoft.mvctesting.service; import java.util.List; import es.landesoft.mvctesting.JavaBeans.Person; public interface PersonService { public void addContact(Person person); public List listPerson(); public void removePerson(Integer id); } 

• PersonService.java

    package es.landesoft.mvctesting.service; import java.util.List; import org.springframework.beans.factory.annotation.Autowired; import org.springframework.stereotype.Service; import org.springframework.transaction.annotation.Transactional; import es.landesoft.mvctesting.JavaBeans.Person; import es.landesoft.mvctesting.dao.PersonDAO; @Service public class PersonServiceClass implements PersonService { @Autowired private PersonDAO personDAO; @Transactional public void addContact(Person person) { personDAO.addContact(person); } @Transactional public List listPerson() { return personDAO.listPersons(); } @Transactional public void removePerson(Integer id) { personDAO.removePerson(id); } } 

我收到此堆栈跟踪错误：

  SEVERE: Servlet.service() for servlet [appServlet] in context with path [/mvctesting] threw exception [Request processing failed; nested exception is org.springframework.transaction.CannotCreateTransactionException: Could not open Hibernate Session for transaction; nested exception is java.lang.UnsupportedOperationException] with root cause java.lang.UnsupportedOperationException at org.apache.commons.dbcp.PoolingDataSource.getConnection(PoolingDataSource.java:136) at org.apache.commons.dbcp.BasicDataSource.getConnection(BasicDataSource.java:447) at org.hibernate.service.jdbc.connections.internal.DatasourceConnectionProviderImpl.getConnection(DatasourceConnectionProviderImpl.java:141) at org.hibernate.internal.AbstractSessionImpl$NonContextualJdbcConnectionAccess.obtainConnection(AbstractSessionImpl.java:292) at org.hibernate.engine.jdbc.internal.LogicalConnectionImpl.obtainConnection(LogicalConnectionImpl.java:214) at org.hibernate.engine.jdbc.internal.LogicalConnectionImpl.getConnection(LogicalConnectionImpl.java:157) at org.hibernate.internal.SessionImpl.connection(SessionImpl.java:550) at org.springframework.orm.hibernate4.HibernateTransactionManager.doBegin(HibernateTransactionManager.java:354) at org.springframework.transaction.support.AbstractPlatformTransactionManager.getTransaction(AbstractPlatformTransactionManager.java:371) at org.springframework.transaction.interceptor.TransactionAspectSupport.createTransactionIfNecessary(TransactionAspectSupport.java:335) at org.springframework.transaction.interceptor.TransactionInterceptor.invoke(TransactionInterceptor.java:105) at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172) at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:202) at com.sun.proxy.$Proxy30.listPerson(Unknown Source) at es.landesoft.mvctesting.PersonController.getPersonJson(PersonController.java:60) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source) at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) at java.lang.reflect.Method.invoke(Unknown Source) at org.springframework.web.method.support.InvocableHandlerMethod.invoke(InvocableHandlerMethod.java:213) at org.springframework.web.method.support.InvocableHandlerMethod.invokeForRequest(InvocableHandlerMethod.java:126) at org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:96) at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandlerMethod(RequestMappingHandlerAdapter.java:617) at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal(RequestMappingHandlerAdapter.java:578) at org.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handle(AbstractHandlerMethodAdapter.java:80) at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:923) at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:852) at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:882) at org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:778) at javax.servlet.http.HttpServlet.service(HttpServlet.java:621) at javax.servlet.http.HttpServlet.service(HttpServlet.java:728) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:305) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210) at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:51) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:243) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210) at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:222) at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:123) at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:502) at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:171) at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:100) at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:953) at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:118) at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:408) at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1041) at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:603) at org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:310) at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source) at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source) at java.lang.Thread.run(Unknown Source) 

另外，如果有人能给我一些帮助我组织xml配置文件的提示，我会很高兴。 我是.NET开发人员，所有这些maven + xml配置对我来说都是新的。

谢谢

Answer 1

我的解决方案是更改Datasource中的bean类：

到Spring框架类：

Answer 2

我觉得你使用的是commons-dbcp版本，它与你正在使用的hibernate版本不兼容……或者你的类路径中有2个版本的commons-dbcp。

为什么？

查看org.apache.commons.dbcp.PoolingDataSource中的代码，您可以看到方法getConnetion(String uname, String passwd)仅抛出exception（在链接的版本中，行是127而不是136）。

从org.apache.commons.dbcp.BasicDataSource ，您可以看到它从不调用PoolingDataSource.getConnection(username, password)

解

1. 检查类路径中是否只有上述类的一个副本
2. 尝试使用commons-dbcp 1.4版