升级Spring和Hibernate，HibernateTemplate等于null和ClassCastExceptions答案

【问题标题】：Upgrading Spring and Hibernate, HibernateTemplate equals null and ClassCastExceptions升级Spring和Hibernate，HibernateTemplate等于null和ClassCastExceptions
【发布时间】：2014-05-03 04:37:41
【问题描述】：

我一直在尝试升级到最新版本的 spring 和 hibernate。我在让一切正常工作方面遇到了很大的麻烦。

我正在使用 Java Server Faces 2.0 和 Dynamic Web Library 3.0。

所以目前我在我的GenericDao 课程中获得了java.lang.ClassCastException: com.sun.proxy.$Proxy37 cannot be cast to org.hibernate.engine.spi.SessionImplementor 开

return (getHibernateTemplate().execute(new HibernateCallback<T>()
    {
        @Override
        public T doInHibernate(Session session) throws HibernateException
        { // The Error  
            Criteria executableCriteria = criteria.getExecutableCriteria(session); 
            return (T) executableCriteria.uniqueResult();
        }
    }));

完整的轨迹...

    WARNING: #{loginBean.login}: java.lang.ClassCastException: com.sun.proxy.$Proxy36 cannot be cast to org.hibernate.engine.spi.SessionImplementor
javax.faces.FacesException: #{loginBean.login}: java.lang.ClassCastException: com.sun.proxy.$Proxy36 cannot be cast to org.hibernate.engine.spi.SessionImplementor
    at com.sun.faces.application.ActionListenerImpl.processAction(ActionListenerImpl.java:118)
    at javax.faces.component.UICommand.broadcast(UICommand.java:315)
    at javax.faces.component.UIViewRoot.broadcastEvents(UIViewRoot.java:790)
    at javax.faces.component.UIViewRoot.processApplication(UIViewRoot.java:1282)
    at com.sun.faces.lifecycle.InvokeApplicationPhase.execute(InvokeApplicationPhase.java:81)
    at com.sun.faces.lifecycle.Phase.doPhase(Phase.java:101)
    at com.sun.faces.lifecycle.LifecycleImpl.execute(LifecycleImpl.java:198)
    at javax.faces.webapp.FacesServlet.service(FacesServlet.java:646)
    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:52)
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:243)
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
    at org.springframework.orm.hibernate4.support.OpenSessionInViewFilter.doFilterInternal(OpenSessionInViewFilter.java:152)
    at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:108)
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:243)
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
    at org.apache.logging.log4j.core.web.Log4jServletFilter.doFilter(Log4jServletFilter.java:66)
    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:409)
    at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1044)
    at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:607)
    at org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:315)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
    at java.lang.Thread.run(Unknown Source)
Caused by: javax.faces.el.EvaluationException: java.lang.ClassCastException: com.sun.proxy.$Proxy36 cannot be cast to org.hibernate.engine.spi.SessionImplementor
    at javax.faces.component.MethodBindingMethodExpressionAdapter.invoke(MethodBindingMethodExpressionAdapter.java:101)
    at com.sun.faces.application.ActionListenerImpl.processAction(ActionListenerImpl.java:102)
    ... 33 more
Caused by: java.lang.ClassCastException: com.sun.proxy.$Proxy36 cannot be cast to org.hibernate.engine.spi.SessionImplementor
    at org.hibernate.criterion.DetachedCriteria.getExecutableCriteria(DetachedCriteria.java:84)
    at com.xx.hibernate.daos.GenericDao$3.doInHibernate(GenericDao.java:155)
    at org.springframework.orm.hibernate4.HibernateTemplate.doExecute(HibernateTemplate.java:340)
    at org.springframework.orm.hibernate4.HibernateTemplate.execute(HibernateTemplate.java:295)
    at com.xx.hibernate.daos.GenericDao.findUnique(GenericDao.java:150)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.springframework.aop.support.AopUtils.invokeJoinpointUsingReflection(AopUtils.java:317)
    at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:201)
    at com.sun.proxy.$Proxy23.findUnique(Unknown Source)
    at com.xx.services.UserService.findSalt(UserService.java:69)
    at com.xx.viewbeans.LoginBean.login(LoginBean.java:34)
    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.apache.el.parser.AstValue.invoke(AstValue.java:278)
    at org.apache.el.MethodExpressionImpl.invoke(MethodExpressionImpl.java:274)
    at com.sun.faces.facelets.el.TagMethodExpression.invoke(TagMethodExpression.java:105)
    at javax.faces.component.MethodBindingMethodExpressionAdapter.invoke(MethodBindingMethodExpressionAdapter.java:87)
    ... 34 more

Mrz 25, 2014 9:48:30 PM com.sun.faces.context.AjaxExceptionHandlerImpl handlePartialResponseError
SEVERE: javax.faces.el.EvaluationException: java.lang.ClassCastException: com.sun.proxy.$Proxy36 cannot be cast to org.hibernate.engine.spi.SessionImplementor
    at javax.faces.component.MethodBindingMethodExpressionAdapter.invoke(MethodBindingMethodExpressionAdapter.java:101)
    at com.sun.faces.application.ActionListenerImpl.processAction(ActionListenerImpl.java:102)
    at javax.faces.component.UICommand.broadcast(UICommand.java:315)
    at javax.faces.component.UIViewRoot.broadcastEvents(UIViewRoot.java:790)
    at javax.faces.component.UIViewRoot.processApplication(UIViewRoot.java:1282)
    at com.sun.faces.lifecycle.InvokeApplicationPhase.execute(InvokeApplicationPhase.java:81)
    at com.sun.faces.lifecycle.Phase.doPhase(Phase.java:101)
    at com.sun.faces.lifecycle.LifecycleImpl.execute(LifecycleImpl.java:198)
    at javax.faces.webapp.FacesServlet.service(FacesServlet.java:646)
    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:52)
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:243)
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
    at org.springframework.orm.hibernate4.support.OpenSessionInViewFilter.doFilterInternal(OpenSessionInViewFilter.java:152)
    at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:108)
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:243)
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
    at org.apache.logging.log4j.core.web.Log4jServletFilter.doFilter(Log4jServletFilter.java:66)
    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:409)
    at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1044)
    at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:607)
    at org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:315)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
    at java.lang.Thread.run(Unknown Source)
Caused by: java.lang.ClassCastException: com.sun.proxy.$Proxy36 cannot be cast to org.hibernate.engine.spi.SessionImplementor
    at org.hibernate.criterion.DetachedCriteria.getExecutableCriteria(DetachedCriteria.java:84)
    at com.xx.hibernate.daos.GenericDao$3.doInHibernate(GenericDao.java:155)
    at org.springframework.orm.hibernate4.HibernateTemplate.doExecute(HibernateTemplate.java:340)
    at org.springframework.orm.hibernate4.HibernateTemplate.execute(HibernateTemplate.java:295)
    at com.xx.hibernate.daos.GenericDao.findUnique(GenericDao.java:150)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.springframework.aop.support.AopUtils.invokeJoinpointUsingReflection(AopUtils.java:317)
    at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:201)
    at com.sun.proxy.$Proxy23.findUnique(Unknown Source)
    at com.xx.services.UserService.findSalt(UserService.java:69)
    at com.xx.viewbeans.LoginBean.login(LoginBean.java:34)
    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.apache.el.parser.AstValue.invoke(AstValue.java:278)
    at org.apache.el.MethodExpressionImpl.invoke(MethodExpressionImpl.java:274)
    at com.sun.faces.facelets.el.TagMethodExpression.invoke(TagMethodExpression.java:105)
    at javax.faces.component.MethodBindingMethodExpressionAdapter.invoke(MethodBindingMethodExpressionAdapter.java:87)
    ... 34 more

此外，我还收到了NullPointerExceptions 关于获取休眠模板的信息。

我刚刚将该项目转换为一个 Maven 项目，以便更好地了解这些库。我可以想象这个问题与我正在使用的库有关......

这是我的 pom.xml

 <dependencies>
<dependency>
  <groupId>antlr</groupId>
  <artifactId>antlr</artifactId>
  <version>2.7.7</version>
</dependency>
<dependency>
  <groupId>com.amazonaws</groupId>
  <artifactId>aws-java-sdk</artifactId>
  <version>1.7.3</version>
</dependency>
<dependency>
  <groupId>org.bouncycastle</groupId>
  <artifactId>bcprov-jdk15on</artifactId>
  <version>1.50</version>
</dependency>
<dependency>
  <groupId>org.primefaces.extensions</groupId>
  <artifactId>all-themes</artifactId>
  <version>1.0.8</version>
</dependency>
<dependency>
  <groupId>com.mchange</groupId>
  <artifactId>c3p0</artifactId>
  <version>0.9.2.1</version>
</dependency>
<dependency>
  <groupId>commons-beanutils</groupId>
  <artifactId>commons-beanutils</artifactId>
  <version>1.7.0</version>
</dependency>
<dependency>
  <groupId>commons-codec</groupId>
  <artifactId>commons-codec</artifactId>
  <version>1.3</version>
</dependency>
<dependency>
  <groupId>commons-collections</groupId>
  <artifactId>commons-collections</artifactId>
  <version>3.2</version>
</dependency>
<dependency>
  <groupId>commons-dbcp</groupId>
  <artifactId>commons-dbcp</artifactId>
  <version>1.4</version>
</dependency>
<dependency>
  <groupId>commons-digester</groupId>
  <artifactId>commons-digester</artifactId>
  <version>1.8</version>
</dependency>
<dependency>
  <groupId>commons-discovery</groupId>
  <artifactId>commons-discovery</artifactId>
  <version>0.2</version>
</dependency>
<dependency>
  <groupId>tomcat</groupId>
  <artifactId>commons-el</artifactId>
  <version>5.5.23</version>
</dependency>
<dependency>
  <groupId>org.apache.commons</groupId>
  <artifactId>commons-email</artifactId>
  <version>1.3.2</version>
</dependency>
<dependency>
  <groupId>commons-fileupload</groupId>
  <artifactId>commons-fileupload</artifactId>
  <version>1.2</version>
</dependency>
<dependency>
  <groupId>commons-httpclient</groupId>
  <artifactId>commons-httpclient</artifactId>
  <version>3.1</version>
</dependency>
<dependency>
  <groupId>commons-io</groupId>
  <artifactId>commons-io</artifactId>
  <version>1.4</version>
</dependency>
<dependency>
  <groupId>commons-lang</groupId>
  <artifactId>commons-lang</artifactId>
  <version>2.4</version>
</dependency>
<dependency>
  <groupId>commons-logging</groupId>
  <artifactId>commons-logging</artifactId>
  <version>1.1.3</version>
</dependency>
<dependency>
  <groupId>commons-net</groupId>
  <artifactId>commons-net</artifactId>
  <version>2.0</version>
</dependency>
<dependency>
  <groupId>commons-pool</groupId>
  <artifactId>commons-pool</artifactId>
  <version>1.6</version>
</dependency>
<dependency>
  <groupId>commons-validator</groupId>
  <artifactId>commons-validator</artifactId>
  <version>1.3.1</version>
</dependency>
<dependency>
  <groupId>dom4j</groupId>
  <artifactId>dom4j</artifactId>
  <version>1.6.1</version>
</dependency>
<dependency>
  <groupId>org.hibernate.common</groupId>
  <artifactId>hibernate-commons-annotations</artifactId>
  <version>4.0.4.Final</version>
</dependency>
<dependency>
  <groupId>org.hibernate</groupId>
  <artifactId>hibernate-core</artifactId>
  <version>4.3.4.Final</version>
</dependency>
<dependency>
  <groupId>org.hibernate</groupId>
  <artifactId>hibernate-entitymanager</artifactId>
  <version>4.3.4.Final</version>
</dependency>
<dependency>
  <groupId>org.apache.httpcomponents</groupId>
  <artifactId>httpclient</artifactId>
  <version>4.2.3</version>
</dependency>
<dependency>
  <groupId>org.apache.httpcomponents</groupId>
  <artifactId>httpcore</artifactId>
  <version>4.2</version>
</dependency>
<dependency>
  <groupId>org.jboss</groupId>
  <artifactId>jandex</artifactId>
  <version>1.1.0.Final</version>
</dependency>
<dependency>
  <groupId>org.javassist</groupId>
  <artifactId>javassist</artifactId>
  <version>3.18.1-GA</version>
</dependency>
<dependency>
  <groupId>org.glassfish</groupId>
  <artifactId>javax.faces</artifactId>
  <version>2.2.1</version>
</dependency>
<dependency>
  <groupId>org.eclipse.persistence</groupId>
  <artifactId>javax.persistence</artifactId>
  <version>2.1.0-RC2</version>
</dependency>
<dependency>
  <groupId>org.jboss.logging</groupId>
  <artifactId>jboss-logging</artifactId>
  <version>3.1.0.GA</version>
</dependency>
<dependency>
  <groupId>org.jboss.logging</groupId>
  <artifactId>jboss-logging</artifactId>
  <version>3.1.3.GA</version>
</dependency>
<dependency>
  <groupId>org.jboss.logging</groupId>
  <artifactId>jboss-logging-annotations</artifactId>
  <version>1.2.0.Beta1</version>
</dependency>
<dependency>
  <groupId>org.jboss.spec.javax.transaction</groupId>
  <artifactId>jboss-transaction-api_1.1_spec</artifactId>
  <version>1.0.1.Final</version>
</dependency>
<dependency>
  <groupId>org.jboss.spec.javax.transaction</groupId>
  <artifactId>jboss-transaction-api_1.2_spec</artifactId>
  <version>1.0.0.Final</version>
</dependency>
<dependency>
  <groupId>com.sun.facelets</groupId>
  <artifactId>jsf-facelets</artifactId>
  <version>1.1.14</version>
</dependency>
<dependency>
  <groupId>javax.servlet</groupId>
  <artifactId>jstl</artifactId>
  <version>1.1.2</version>
</dependency> 
<dependency>
  <groupId>org.apache.logging.log4j</groupId>
  <artifactId>log4j-1.2-api</artifactId>
  <version>2.0-rc1</version>
</dependency>
<dependency>
  <groupId>org.apache.logging.log4j</groupId>
  <artifactId>log4j-api</artifactId>
  <version>2.0-rc1</version>
</dependency>
<dependency>
  <groupId>org.apache.logging.log4j</groupId>
  <artifactId>log4j-core</artifactId>
  <version>2.0-rc1</version>
</dependency>
<dependency>
  <groupId>com.mchange</groupId>
  <artifactId>mchange-commons-java</artifactId>
  <version>0.2.3.4</version>
</dependency>
<dependency>
  <groupId>org.primefaces</groupId>
  <artifactId>primefaces</artifactId>
  <version>4.0</version>
</dependency>
<dependency>
  <groupId>org.slf4j</groupId>
  <artifactId>slf4j-api</artifactId>
  <version>1.6.6</version>
</dependency>
<dependency>
  <groupId>org.slf4j</groupId>
  <artifactId>slf4j-jdk14</artifactId>
  <version>1.6.6</version>
</dependency>
<dependency>
  <groupId>org.springframework</groupId>
  <artifactId>spring-aop</artifactId>
  <version>4.0.2.RELEASE</version>
</dependency>
<dependency>
  <groupId>org.springframework</groupId>
  <artifactId>spring-aspects</artifactId>
  <version>4.0.2.RELEASE</version>
</dependency>
<dependency>
  <groupId>org.springframework</groupId>
  <artifactId>spring-beans</artifactId>
  <version>4.0.2.RELEASE</version>
</dependency>
<dependency>
  <groupId>org.springframework</groupId>
  <artifactId>spring-context</artifactId>
  <version>4.0.2.RELEASE</version>
</dependency>
<dependency>
  <groupId>org.springframework</groupId>
  <artifactId>spring-context-support</artifactId>
  <version>4.0.2.RELEASE</version>
</dependency>
<dependency>
  <groupId>org.springframework</groupId>
  <artifactId>spring-core</artifactId>
  <version>4.0.2.RELEASE</version>
</dependency>
<dependency>
  <groupId>org.springframework</groupId>
  <artifactId>spring-expression</artifactId>
  <version>4.0.2.RELEASE</version>
</dependency>
<dependency>
  <groupId>org.springframework</groupId>
  <artifactId>spring-jdbc</artifactId>
  <version>4.0.2.RELEASE</version>
</dependency>
<dependency>
  <groupId>org.springframework</groupId>
  <artifactId>spring-jms</artifactId>
  <version>4.0.2.RELEASE</version>
</dependency>
<dependency>
  <groupId>org.springframework</groupId>
  <artifactId>spring-messaging</artifactId>
  <version>4.0.2.RELEASE</version>
</dependency>
<dependency>
  <groupId>org.springframework</groupId>
  <artifactId>spring-orm</artifactId>
  <version>4.0.2.RELEASE</version>
</dependency>
<dependency>
  <groupId>org.springframework</groupId>
  <artifactId>spring-oxm</artifactId>
  <version>4.0.2.RELEASE</version>
</dependency>
<dependency>
  <groupId>org.springframework</groupId>
  <artifactId>spring-tx</artifactId>
  <version>4.0.2.RELEASE</version>
</dependency>
<dependency>
  <groupId>org.springframework</groupId>
  <artifactId>spring-web</artifactId>
  <version>4.0.2.RELEASE</version>
</dependency>
<dependency>
  <groupId>org.springframework</groupId>
  <artifactId>spring-webmvc</artifactId>
  <version>4.0.2.RELEASE</version>
</dependency>
<dependency>
  <groupId>org.springframework</groupId>
  <artifactId>spring-webmvc-portlet</artifactId>
  <version>4.0.2.RELEASE</version>
</dependency>
<dependency>
  <groupId>org.springframework</groupId>
  <artifactId>spring-websocket</artifactId>
  <version>4.0.2.RELEASE</version>
</dependency>
<dependency>
  <groupId>org.apache.myfaces.tomahawk</groupId>
  <artifactId>tomahawk</artifactId>
  <version>1.1.6</version>
</dependency>

这是我的 applicationContext.xml 的一部分

    <bean id="sessionFactory"
    class="org.springframework.orm.hibernate4.LocalSessionFactoryBean">
    <property name="configLocation"
        value="classpath:com/xx/hibernate/mappings/hibernate.cfg.xml" />
</bean>

<bean id="abstractDaoTarget" class="com.xx.hibernate.daos.GenericDao"
    abstract="true">
    <property name="sessionFactory" ref="sessionFactory" />
</bean>

<bean id="abstractDao" class="org.springframework.aop.framework.ProxyFactoryBean"
    abstract="true" />

<bean id="productDao" parent="abstractDao">
    <property name="proxyInterfaces" value="com.xx.hibernate.daos.IProductDao" />
    <property name="target">
        <bean parent="abstractDaoTarget">
            <constructor-arg value="com.xx.hibernate.mappings.Product" />
        </bean>
    </property>
</bean>

作为解释，我稍后会将这些特定于类的 daos 注入到服务中。这在休眠 3 中运行良好。

我的GenericDao 课程的一部分...

import org.springframework.orm.hibernate4.HibernateCallback;
import org.springframework.orm.hibernate4.support.HibernateDaoSupport;

public class GenericDao<T> extends HibernateDaoSupport implements IGenericDao<T>, Serializable {


@Override
public void delete(T obj)
{
    getHibernateTemplate().delete(obj);
}

休眠配置

<hibernate-configuration>
    <session-factory>
        <property name="hibernate.connection.driver_class">org.gjt.mm.mysql.Driver</property>
        <property name="hibernate.connection.password">pw</property>
        <property name="hibernate.connection.url">jdbc:mysql://localhost/xx</property>
        <property name="hibernate.connection.username">root</property>
        <property name="hibernate.dialect">org.hibernate.dialect.MySQLInnoDBDialect</property>
        <property name="hibernate.c3p0.min_size">5</property>
        <property name="hibernate.c3p0.max_size">20</property>
        <property name="hibernate.c3p0.timeout">300</property>
        <property name="hibernate.c3p0.max_statements">50</property>
        <property name="hibernate.c3p0.idle_test_period">3000</property>

        <mapping resource="com/xx/hibernate/mappings/Battery.hbm.xml" />

        ...
    </session-factory>
</hibernate-configuration>

如果你们能帮我解决这个问题，你们会帮我一个大忙。

如果您需要查看其他内容，请告诉我。

提前致谢！

【问题讨论】：

我已经将每次出现的hibernate3更新为hibernate4。
您的配置中是否有使用或导致代理的内容？ IE。一些AOP的东西？我想指出，不建议再使用HibernateTemplate，而只是简单的休眠（自 2006 年的 Hibernate 3.0.1 起！）。
我唯一能想象的就是我的applicationContext中的ProxyFactoryBean...目前推荐的方法是什么？
正如我所说不使用它，只需使用普通的SessionFactory 和getCurrentSession()。您可能还想考虑迁移到 JPA 并使用 Spring Data JPA（这可能允许您删除自己的自定义通用 dao 实现）。
当前重写服务以使用SessionFactory 和getCurrentSession()。如果我有解决方案，我会发布解决方案。

标签： spring hibernate maven jsf jakarta-ee

【解决方案1】：

正如 M. Deinum 所指出的，我的来源已经完全过时了。

我重写了整个服务和 daos...

     BaseDao<T> implements IBaseDao<T>
    {

        private Class<T> type;

        public BaseDao()
        {

        }

        public BaseDao(Class<T> type)
        {
            this.type = type;
        }

        private SessionFactory sessionFactory;

        @Override
        public void delete(T obj)
        {
            getSession().delete(obj);
        }

public Session getSession()
    {
        Session session = getSessionFactory().getCurrentSession();

        if (session == null)
        {
            session = getSessionFactory().openSession();
        }

        return session;
    }
    ...

我的应用上下文...

<bean id="userDao" class="com.xx.hibernate.daos.UserDao">
    <property name="sessionFactory" ref="sessionFactory" />
</bean>    

<bean id="userService" class="com.xx.services.UserService">
    <property name="dao" ref="userDao" />
</bean>

<tx:annotation-driven transaction-manager="transactionManager" />
<bean id="transactionManager"
    class="org.springframework.orm.hibernate4.HibernateTransactionManager">
    <property name="sessionFactory" ref="sessionFactory" />
</bean>

此外，我一直在我的服务中使用@Transactional 注解。

我还更新了我的 c3p0 和 eh-cache 库到最新的休眠版本。

【讨论】：

由于这没有帮助我解决同样的问题，我打开了一个新问题并在这里得到了一个非常简单的解决方案：stackoverflow.com/questions/38936931/…