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

Question

I'm trying to set up and Spring MVC + Hibernate project but it's driving me nuts. I would also take in account suggestions to order the xml config files.

I have the following files:

• web.xml

   <web-app version="2.5" xmlns="http://java.sun.com/xml/ns/javaee" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd"> <!-- The definition of the Root Spring Container shared by all Servlets and Filters --> <context-param> <param-name>contextConfigLocation</param-name> <param-value>/WEB-INF/spring/root-context.xml</param-value> </context-param> <!-- Creates the Spring Container shared by all Servlets and Filters --> <listener> <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class> </listener> <!-- Processes application requests --> <servlet> <servlet-name>appServlet</servlet-name> <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class> <init-param> <param-name>contextConfigLocation</param-name> <param-value>/WEB-INF/spring/appServlet/servlet-context.xml</param-value> </init-param> <load-on-startup>1</load-on-startup> </servlet> <servlet-mapping> <servlet-name>appServlet</servlet-name> <url-pattern>/</url-pattern> </servlet-mapping> </web-app> 

• servlet-context.xml

   <?xml version="1.0" encoding="UTF-8"?> <beans:beans xmlns="http://www.springframework.org/schema/mvc" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:beans="http://www.springframework.org/schema/beans" xmlns:context="http://www.springframework.org/schema/context" xmlns:tx="http://www.springframework.org/schema/tx" xmlns:jdbc="http://www.springframework.org/schema/jdbc" xsi:schemaLocation="http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc.xsd http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd http://www.springframework.org/schema/jdbc http://www.springframework.org/schema/jdbc/spring-jdbc-3.0.xsd http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context.xsd"> <context:annotation-config /> <!-- DispatcherServlet Context: defines this servlet's request-processing infrastructure --> <!-- Enables the Spring MVC @Controller programming model --> <annotation-driven /> <tx:annotation-driven/> <context:component-scan base-package="es.landesoft.mvctesting" /> <context:component-scan base-package="es.landesoft.mvctesting.service" /> <context:component-scan base-package="es.landesoft.mvctesting.dao" /> <!-- Handles HTTP GET requests for /resources/** by efficiently serving up static resources in the ${webappRoot}/resources directory --> <resources mapping="/resources/**" location="/resources/" /> <!-- Resolves views selected for rendering by @Controllers to .jsp resources in the /WEB-INF/views directory --> <beans:bean class="org.springframework.web.servlet.view.InternalResourceViewResolver"> <beans:property name="prefix" value="/WEB-INF/views/" /> <beans:property name="suffix" value=".jsp" /> </beans:bean> <!-- JDBC Data Source. It is assumed you have MySQL running on localhost port 3306 with username root and blank password. Change below if it's not the case --> <beans:bean id="myDataSource" class="org.apache.commons.dbcp.BasicDataSource" destroy-method="close"> <beans:property name="driverClassName" value="com.microsoft.sqlserver.jdbc.SQLServerDriver"/> <beans:property name="url" value="jdbc:sqlserver://127.0.0.1:1433;databaseName=MyHome;instanceName=SQLEXPRESS;"/> <beans:property name="username" value="sa"/> <beans:property name="password" value="sarednal1"/> <beans:property name="validationQuery" value="SELECT 1"/> </beans:bean> <beans:bean id="sessionFactory" class="org.springframework.orm.hibernate4.LocalSessionFactoryBean"> <beans:property name="dataSource" ref="myDataSource"/> <beans:property name="configLocation"> <beans:value>classpath:hibernate.cfg.xml</beans:value> </beans:property> <beans:property name="packagesToScan" value="es.landesoft.mvctesting" /> <beans:property name="hibernateProperties"> <beans:props> <beans:prop key="hibernate.dialect">org.hibernate.dialect.SQLServer2008Dialect</beans:prop> <beans:prop key="hibernate.show_sql">true</beans:prop> </beans:props> </beans:property> </beans:bean> <beans:bean id="transactionManager" class="org.springframework.orm.hibernate4.HibernateTransactionManager"> <beans:property name="dataSource" ref="myDataSource" /> <beans:property name="sessionFactory" ref="sessionFactory" /> </beans:bean> 

• 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<Person> getPersonJson() { return personService.listPerson(); } } 

• PersonDAO.java

  package es.landesoft.mvctesting.dao;

   import java.util.List; import es.landesoft.mvctesting.JavaBeans.Person; public interface PersonDAO { public void addContact(Person person); public List<Person> 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<Person> 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<Person> 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<Person> listPerson() { return personDAO.listPersons(); } @Transactional public void removePerson(Integer id) { personDAO.removePerson(id); } } 

I am getting this stacktrace error:

    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)

In addition, I would be glad if someone can give me some tips to help me organize the xml config files. I am .NET developer and all this maven + xml configurations are something new for me.

Thanks

Answer 1

My solution was changing the bean class in Datasource from:

<beans:bean id="myDataSource" class="org.apache.commons.dbcp.BasicDataSource" destroy-method="close">

to the spring Framework class:

 <beans:bean id="myDataSource" class="org.springframework.jdbc.datasource.DriverManagerDataSource" >

Answer 2

I have the feeling you're using a version of commons-dbcp which is not compatible with the version of hibernate you're using... or that you have 2 versions of the commons-dbcp in your classpath.

Why?

Looking at the code from org.apache.commons.dbcp.PoolingDataSource , you can see that the method getConnetion(String uname, String passwd) only throws an exception (in the version in the link, the line is 127 rather than 136).

And from org.apache.commons.dbcp.BasicDataSource , you can see that it never calls PoolingDataSource.getConnection(username, password)

solution

1. Check that you have only one copy of the classes above in your classpath
2. Try using commons-dbcp version 1.4