我的 spring/hibernate/c3p0/jboss 应用程序遇到了一个非常奇怪的问题。当它启动时，日志显示
16:42:09,219 INFO [org.hibernate.service.jdbc.connections.internal.ConnectionProviderInitiator]（MSC 服务线程 1-4）HHH000130：实例化显式连接提供程序：org.hibernate.service.jdbc.connections.internal.C3P0ConnectionProvider
16:42:09,235 INFO [org.hibernate.service.jdbc.connections.internal.C3P0ConnectionProvider]（MSC 服务线程 1-4）HHH010002：C3P0 使用驱动程序：oracle.jdbc.OracleDriver 在 URL：jdbc:oracle:thin:@ ...
但是，当它尝试创建 SessionFactory bean 时，我看到了一点点
16:42:11,219 INFO [org.hibernate.service.jdbc.connections.internal.ConnectionProviderInitiator]（MSC 服务线程 1-2）HHH000130：实例化显式连接提供程序：org.hibernate.service.jdbc.connections.internal.C3P0ConnectionProvider
接下来是壮观的堆栈跟踪，以
原因：java.lang.ClassNotFoundException：无法加载请求的类：org.hibernate.service.jdbc.connections.internal.C3P0ConnectionProvider
休眠.cfg.xml
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE hibernate-configuration PUBLIC
"-//Hibernate/Hibernate Configuration DTD 3.0//EN"
"http://www.hibernate.org/dtd/hibernate-configuration-3.0.dtd">
<hibernate-configuration>
<session-factory>
<property name="hibernate.connection.driver_class">oracle.jdbc.OracleDriver</property>
<property name="hibernate.connection.password">...</property>
<property name="hibernate.connection.url">jdbc:oracle:thin:...</property>
<property name="hibernate.connection.username">...</property>
<property name="hibernate.dialect">org.hibernate.dialect.Oracle10gDialect</property>
<property name="hibernate.connection.provider_class">org.hibernate.service.jdbc.connections.internal.C3P0ConnectionProvider</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>
</session-factory>
</hibernate-configuration>
语境：
@Configuration
@EnableTransactionManagement
@ComponentScan("...")
public class PersistenceContext {
@Bean
public SessionFactory sessionFactory() throws IOException {
LocalSessionFactoryBean sessionFactoryBean = new LocalSessionFactoryBean();
sessionFactoryBean.setConfigLocation(new ClassPathResource("hibernate.cfg.xml"));
sessionFactoryBean.afterPropertiesSet();
return sessionFactoryBean.getObject();
}
@Bean
public HibernateTransactionManager transactionManager() throws IOException {
HibernateTransactionManager manager = new HibernateTransactionManager(sessionFactory());
return manager;
}
}
持久性.xml
<persistence version="2.0"
xmlns="http://java.sun.com/xml/ns/persistence" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="
http://java.sun.com/xml/ns/persistence
http://java.sun.com/xml/ns/persistence/persistence_2_0.xsd">
<persistence-unit name="primary" transaction-type="JTA">
<properties>
<property name="hibernate.ejb.cfgfile" value="hibernate.cfg.xml"/>
</properties>
</persistence-unit>
hibernate version: 4.0.1.Final
spring: 3.2.3.RELEASE
jboss: 7.1.1
c3p0: 0.9.1 (version listed as a dependency of hibernate-c3p0)
编辑 堆栈跟踪：
10:16:51,253 ERROR [org.apache.catalina.core.ContainerBase.[jboss.web].[default-host].[/...]] (MSC service thread 1-7) Exception sending context initialized event to listener instance of class org.springframework.web.context.ContextLoaderListener: org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'scenarioController' defined in "/C:/jboss-as-7.1.1.Final/jboss-as-7.1.1.Final/bin/content/app.war/WEB-INF/classes/com/.../web/controllers/ScenarioController.class": Unsatisfied dependency expressed through constructor argument with index 0 of type [...dao.interfaces.ScenarioDao]: : Error creating bean with name 'scenarioDaoImpl' defined in "/C:/jboss-as-7.1.1.Final/jboss-as-7.1.1.Final/bin/content/app.war/WEB-INF/classes/com/.../dao/ScenarioDaoImpl.class": Unsatisfied dependency expressed through constructor argument with index 0 of type [org.hibernate.SessionFactory]: : Error creating bean with name 'sessionFactory' defined in class app.web.config.PersistenceContext: Instantiation of bean failed; nested exception is org.springframework.beans.factory.BeanDefinitionStoreException: Factory method [public org.hibernate.SessionFactory ...web.config.PersistenceContext.sessionFactory() throws java.io.IOException] threw exception; nested exception is org.hibernate.service.spi.ServiceException: Unable to create requested service [org.hibernate.service.jdbc.connections.spi.ConnectionProvider]; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'sessionFactory' defined in class ....web.config.PersistenceContext: Instantiation of bean failed; nested exception is org.springframework.beans.factory.BeanDefinitionStoreException: Factory method [public org.hibernate.SessionFactory ....web.config.PersistenceContext.sessionFactory() throws java.io.IOException] threw exception; nested exception is org.hibernate.service.spi.ServiceException: Unable to create requested service [org.hibernate.service.jdbc.connections.spi.ConnectionProvider]; nested exception is org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'scenarioDaoImpl' defined in "/C:/jboss-as-7.1.1.Final/jboss-as-7.1.1.Final/bin/content/....war/WEB-INF/classes/com/.../dao/ScenarioDaoImpl.class": Unsatisfied dependency expressed through constructor argument with index 0 of type [org.hibernate.SessionFactory]: : Error creating bean with name 'sessionFactory' defined in class com.....web.config.PersistenceContext: Instantiation of bean failed; nested exception is org.springframework.beans.factory.BeanDefinitionStoreException: Factory method [public org.hibernate.SessionFactory com.....web.config.PersistenceContext.sessionFactory() throws java.io.IOException] threw exception; nested exception is org.hibernate.service.spi.ServiceException: Unable to create requested service [org.hibernate.service.jdbc.connections.spi.ConnectionProvider]; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'sessionFactory' defined in class com.....config.PersistenceContext: Instantiation of bean failed; nested exception is org.springframework.beans.factory.BeanDefinitionStoreException: Factory method [public org.hibernate.SessionFactory com.....web.config.PersistenceContext.sessionFactory() throws java.io.IOException] threw exception; nested exception is org.hibernate.service.spi.ServiceException: Unable to create requested service [org.hibernate.service.jdbc.connections.spi.ConnectionProvider]
at org.springframework.beans.factory.support.ConstructorResolver.createArgumentArray(ConstructorResolver.java:730) [spring-beans-3.2.3.RELEASE.jar:3.2.3.RELEASE]
at org.springframework.beans.factory.support.ConstructorResolver.autowireConstructor(ConstructorResolver.java:196) [spring-beans-3.2.3.RELEASE.jar:3.2.3.RELEASE]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.autowireConstructor(AbstractAutowireCapableBeanFactory.java:1045) [spring-beans-3.2.3.RELEASE.jar:3.2.3.RELEASE]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBeanInstance(AbstractAutowireCapableBeanFactory.java:949) [spring-beans-3.2.3.RELEASE.jar:3.2.3.RELEASE]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:487) [spring-beans-3.2.3.RELEASE.jar:3.2.3.RELEASE]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:458) [spring-beans-3.2.3.RELEASE.jar:3.2.3.RELEASE]
at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:295) [spring-beans-3.2.3.RELEASE.jar:3.2.3.RELEASE]
at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:223) [spring-beans-3.2.3.RELEASE.jar:3.2.3.RELEASE]
at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:292) [spring-beans-3.2.3.RELEASE.jar:3.2.3.RELEASE]
at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:194) [spring-beans-3.2.3.RELEASE.jar:3.2.3.RELEASE]
at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:626) [spring-beans-3.2.3.RELEASE.jar:3.2.3.RELEASE]
at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:932) [spring-context-3.2.3.RELEASE.jar:3.2.3.RELEASE]
at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:479) [spring-context-3.2.3.RELEASE.jar:3.2.3.RELEASE]
at org.springframework.web.context.ContextLoader.configureAndRefreshWebApplicationContext(ContextLoader.java:389) [spring-web-3.2.3.RELEASE.jar:3.2.3.RELEASE]
at org.springframework.web.context.ContextLoader.initWebApplicationContext(ContextLoader.java:294) [spring-web-3.2.3.RELEASE.jar:3.2.3.RELEASE]
at org.springframework.web.context.ContextLoaderListener.contextInitialized(ContextLoaderListener.java:112) [spring-web-3.2.3.RELEASE.jar:3.2.3.RELEASE]
at org.apache.catalina.core.StandardContext.contextListenerStart(StandardContext.java:3392) [jbossweb-7.0.13.Final.jar:]
at org.apache.catalina.core.StandardContext.start(StandardContext.java:3850) [jbossweb-7.0.13.Final.jar:]
at org.jboss.as.web.deployment.WebDeploymentService.start(WebDeploymentService.java:90) [jboss-as-web-7.1.1.Final.jar:7.1.1.Final]
at org.jboss.msc.service.ServiceControllerImpl$StartTask.startService(ServiceControllerImpl.java:1811)
at org.jboss.msc.service.ServiceControllerImpl$StartTask.run(ServiceControllerImpl.java:1746)
at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886) [rt.jar:1.6.0_12]
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908) [rt.jar:1.6.0_12]
at java.lang.Thread.run(Thread.java:619) [rt.jar:1.6.0_12]
Caused by: org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'scenarioDaoImpl' defined in "/C:/jboss-as-7.1.1.Final/jboss-as-7.1.1.Final/bin/content/....war/WEB-INF/classes/com/.../dao/ScenarioDaoImpl.class": Unsatisfied dependency expressed through constructor argument with index 0 of type [org.hibernate.SessionFactory]: : Error creating bean with name 'sessionFactory' defined in class com.....web.config.PersistenceContext: Instantiation of bean failed; nested exception is org.springframework.beans.factory.BeanDefinitionStoreException: Factory method [public org.hibernate.SessionFactory com.....web.config.PersistenceContext.sessionFactory() throws java.io.IOException] threw exception; nested exception is org.hibernate.service.spi.ServiceException: Unable to create requested service [org.hibernate.service.jdbc.connections.spi.ConnectionProvider]; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'sessionFactory' defined in class com.....web.config.PersistenceContext: Instantiation of bean failed; nested exception is org.springframework.beans.factory.BeanDefinitionStoreException: Factory method [public org.hibernate.SessionFactory com.....web.config.PersistenceContext.sessionFactory() throws java.io.IOException] threw exception; nested exception is org.hibernate.service.spi.ServiceException: Unable to create requested service [org.hibernate.service.jdbc.connections.spi.ConnectionProvider]
at org.springframework.beans.factory.support.ConstructorResolver.createArgumentArray(ConstructorResolver.java:730) [spring-beans-3.2.3.RELEASE.jar:3.2.3.RELEASE]
at org.springframework.beans.factory.support.ConstructorResolver.autowireConstructor(ConstructorResolver.java:196) [spring-beans-3.2.3.RELEASE.jar:3.2.3.RELEASE]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.autowireConstructor(AbstractAutowireCapableBeanFactory.java:1045) [spring-beans-3.2.3.RELEASE.jar:3.2.3.RELEASE]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBeanInstance(AbstractAutowireCapableBeanFactory.java:949) [spring-beans-3.2.3.RELEASE.jar:3.2.3.RELEASE]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:487) [spring-beans-3.2.3.RELEASE.jar:3.2.3.RELEASE]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:458) [spring-beans-3.2.3.RELEASE.jar:3.2.3.RELEASE]
at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:295) [spring-beans-3.2.3.RELEASE.jar:3.2.3.RELEASE]
at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:223) [spring-beans-3.2.3.RELEASE.jar:3.2.3.RELEASE]
at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:292) [spring-beans-3.2.3.RELEASE.jar:3.2.3.RELEASE]
at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:194) [spring-beans-3.2.3.RELEASE.jar:3.2.3.RELEASE]
at org.springframework.beans.factory.support.DefaultListableBeanFactory.findAutowireCandidates(DefaultListableBeanFactory.java:910) [spring-beans-3.2.3.RELEASE.jar:3.2.3.RELEASE]
at org.springframework.beans.factory.support.DefaultListableBeanFactory.doResolveDependency(DefaultListableBeanFactory.java:853) [spring-beans-3.2.3.RELEASE.jar:3.2.3.RELEASE]
at org.springframework.beans.factory.support.DefaultListableBeanFactory.resolveDependency(DefaultListableBeanFactory.java:768) [spring-beans-3.2.3.RELEASE.jar:3.2.3.RELEASE]
at org.springframework.beans.factory.support.ConstructorResolver.resolveAutowiredArgument(ConstructorResolver.java:795) [spring-beans-3.2.3.RELEASE.jar:3.2.3.RELEASE]
at org.springframework.beans.factory.support.ConstructorResolver.createArgumentArray(ConstructorResolver.java:723) [spring-beans-3.2.3.RELEASE.jar:3.2.3.RELEASE]
... 23 more
Caused by: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'sessionFactory' defined in class com.....web.config.PersistenceContext: Instantiation of bean failed; nested exception is org.springframework.beans.factory.BeanDefinitionStoreException: Factory method [public org.hibernate.SessionFactory com.....web.config.PersistenceContext.sessionFactory() throws java.io.IOException] threw exception; nested exception is org.hibernate.service.spi.ServiceException: Unable to create requested service [org.hibernate.service.jdbc.connections.spi.ConnectionProvider]
at org.springframework.beans.factory.support.ConstructorResolver.instantiateUsingFactoryMethod(ConstructorResolver.java:581) [spring-beans-3.2.3.RELEASE.jar:3.2.3.RELEASE]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.instantiateUsingFactoryMethod(AbstractAutowireCapableBeanFactory.java:1025) [spring-beans-3.2.3.RELEASE.jar:3.2.3.RELEASE]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBeanInstance(AbstractAutowireCapableBeanFactory.java:921) [spring-beans-3.2.3.RELEASE.jar:3.2.3.RELEASE]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:487) [spring-beans-3.2.3.RELEASE.jar:3.2.3.RELEASE]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:458) [spring-beans-3.2.3.RELEASE.jar:3.2.3.RELEASE]
at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:295) [spring-beans-3.2.3.RELEASE.jar:3.2.3.RELEASE]
at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:223) [spring-beans-3.2.3.RELEASE.jar:3.2.3.RELEASE]
at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:292) [spring-beans-3.2.3.RELEASE.jar:3.2.3.RELEASE]
at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:194) [spring-beans-3.2.3.RELEASE.jar:3.2.3.RELEASE]
at org.springframework.beans.factory.support.DefaultListableBeanFactory.findAutowireCandidates(DefaultListableBeanFactory.java:910) [spring-beans-3.2.3.RELEASE.jar:3.2.3.RELEASE]
at org.springframework.beans.factory.support.DefaultListableBeanFactory.doResolveDependency(DefaultListableBeanFactory.java:853) [spring-beans-3.2.3.RELEASE.jar:3.2.3.RELEASE]
at org.springframework.beans.factory.support.DefaultListableBeanFactory.resolveDependency(DefaultListableBeanFactory.java:768) [spring-beans-3.2.3.RELEASE.jar:3.2.3.RELEASE]
at org.springframework.beans.factory.support.ConstructorResolver.resolveAutowiredArgument(ConstructorResolver.java:795) [spring-beans-3.2.3.RELEASE.jar:3.2.3.RELEASE]
at org.springframework.beans.factory.support.ConstructorResolver.createArgumentArray(ConstructorResolver.java:723) [spring-beans-3.2.3.RELEASE.jar:3.2.3.RELEASE]
... 37 more
Caused by: org.springframework.beans.factory.BeanDefinitionStoreException: Factory method [public org.hibernate.SessionFactory com.....web.config.PersistenceContext.sessionFactory() throws java.io.IOException] threw exception; nested exception is org.hibernate.service.spi.ServiceException: Unable to create requested service [org.hibernate.service.jdbc.connections.spi.ConnectionProvider]
at org.springframework.beans.factory.support.SimpleInstantiationStrategy.instantiate(SimpleInstantiationStrategy.java:181) [spring-beans-3.2.3.RELEASE.jar:3.2.3.RELEASE]
at org.springframework.beans.factory.support.ConstructorResolver.instantiateUsingFactoryMethod(ConstructorResolver.java:570) [spring-beans-3.2.3.RELEASE.jar:3.2.3.RELEASE]
... 50 more
Caused by: org.hibernate.service.spi.ServiceException: Unable to create requested service [org.hibernate.service.jdbc.connections.spi.ConnectionProvider]
at org.hibernate.service.internal.AbstractServiceRegistryImpl.createService(AbstractServiceRegistryImpl.java:187) [hibernate-core-4.0.1.Final.jar:4.0.1.Final]
at org.hibernate.service.internal.AbstractServiceRegistryImpl.initializeService(AbstractServiceRegistryImpl.java:150) [hibernate-core-4.0.1.Final.jar:4.0.1.Final]
at org.hibernate.service.internal.AbstractServiceRegistryImpl.getService(AbstractServiceRegistryImpl.java:131) [hibernate-core-4.0.1.Final.jar:4.0.1.Final]
at org.hibernate.engine.jdbc.internal.JdbcServicesImpl.buildJdbcConnectionAccess(JdbcServicesImpl.java:234) [hibernate-core-4.0.1.Final.jar:4.0.1.Final]
at org.hibernate.engine.jdbc.internal.JdbcServicesImpl.configure(JdbcServicesImpl.java:91) [hibernate-core-4.0.1.Final.jar:4.0.1.Final]
at org.hibernate.service.internal.StandardServiceRegistryImpl.configureService(StandardServiceRegistryImpl.java:75) [hibernate-core-4.0.1.Final.jar:4.0.1.Final]
at org.hibernate.service.internal.AbstractServiceRegistryImpl.initializeService(AbstractServiceRegistryImpl.java:159) [hibernate-core-4.0.1.Final.jar:4.0.1.Final]
at org.hibernate.service.internal.AbstractServiceRegistryImpl.getService(AbstractServiceRegistryImpl.java:131) [hibernate-core-4.0.1.Final.jar:4.0.1.Final]
at org.hibernate.cfg.SettingsFactory.buildSettings(SettingsFactory.java:71) [hibernate-core-4.0.1.Final.jar:4.0.1.Final]
at org.hibernate.cfg.Configuration.buildSettingsInternal(Configuration.java:2270) [hibernate-core-4.0.1.Final.jar:4.0.1.Final]
at org.hibernate.cfg.Configuration.buildSettings(Configuration.java:2266) [hibernate-core-4.0.1.Final.jar:4.0.1.Final]
at org.hibernate.cfg.Configuration.buildSessionFactory(Configuration.java:1735) [hibernate-core-4.0.1.Final.jar:4.0.1.Final]
at org.hibernate.cfg.Configuration.buildSessionFactory(Configuration.java:1775) [hibernate-core-4.0.1.Final.jar:4.0.1.Final]
at org.springframework.orm.hibernate4.LocalSessionFactoryBuilder.buildSessionFactory(LocalSessionFactoryBuilder.java:247) [spring-orm-3.2.3.RELEASE.jar:3.2.3.RELEASE]
at org.springframework.orm.hibernate4.LocalSessionFactoryBean.buildSessionFactory(LocalSessionFactoryBean.java:373) [spring-orm-3.2.3.RELEASE.jar:3.2.3.RELEASE]
at org.springframework.orm.hibernate4.LocalSessionFactoryBean.afterPropertiesSet(LocalSessionFactoryBean.java:358) [spring-orm-3.2.3.RELEASE.jar:3.2.3.RELEASE]
at com.....web.config.PersistenceContext.sessionFactory(PersistenceContext.java:23) [classes:]
at com.....web.config.PersistenceContext$$EnhancerByCGLIB$$407e55e5.CGLIB$sessionFactory$1(<generated>) [spring-core-3.2.3.RELEASE.jar:]
at com.....web.config.PersistenceContext$$EnhancerByCGLIB$$407e55e5$$FastClassByCGLIB$$22f280c.invoke(<generated>) [spring-core-3.2.3.RELEASE.jar:]
at org.springframework.cglib.proxy.MethodProxy.invokeSuper(MethodProxy.java:228) [spring-core-3.2.3.RELEASE.jar:3.2.3.RELEASE]
at org.springframework.context.annotation.ConfigurationClassEnhancer$BeanMethodInterceptor.intercept(ConfigurationClassEnhancer.java:286) [spring-context-3.2.3.RELEASE.jar:3.2.3.RELEASE]
at com.....web.config.PersistenceContext$$EnhancerByCGLIB$$407e55e5.sessionFactory(<generated>) [spring-core-3.2.3.RELEASE.jar:]
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) [rt.jar:1.6.0_12]
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39) [rt.jar:1.6.0_12]
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) [rt.jar:1.6.0_12]
at java.lang.reflect.Method.invoke(Method.java:597) [rt.jar:1.6.0_12]
at org.springframework.beans.factory.support.SimpleInstantiationStrategy.instantiate(SimpleInstantiationStrategy.java:160) [spring-beans-3.2.3.RELEASE.jar:3.2.3.RELEASE]
... 51 more
Caused by: org.hibernate.HibernateException: Could not instantiate connection provider [org.hibernate.service.jdbc.connections.internal.C3P0ConnectionProvider]
at org.hibernate.service.jdbc.connections.internal.ConnectionProviderInitiator.instantiateExplicitConnectionProvider(ConnectionProviderInitiator.java:190) [hibernate-core-4.0.1.Final.jar:4.0.1.Final]
at org.hibernate.service.jdbc.connections.internal.ConnectionProviderInitiator.initiateService(ConnectionProviderInitiator.java:112) [hibernate-core-4.0.1.Final.jar:4.0.1.Final]
at org.hibernate.service.jdbc.connections.internal.ConnectionProviderInitiator.initiateService(ConnectionProviderInitiator.java:54) [hibernate-core-4.0.1.Final.jar:4.0.1.Final]
at org.hibernate.service.internal.StandardServiceRegistryImpl.initiateService(StandardServiceRegistryImpl.java:69) [hibernate-core-4.0.1.Final.jar:4.0.1.Final]
at org.hibernate.service.internal.AbstractServiceRegistryImpl.createService(AbstractServiceRegistryImpl.java:177) [hibernate-core-4.0.1.Final.jar:4.0.1.Final]
... 77 more
Caused by: org.hibernate.service.classloading.spi.ClassLoadingException: Unable to load class [org.hibernate.service.jdbc.connections.internal.C3P0ConnectionProvider]
at org.hibernate.service.classloading.internal.ClassLoaderServiceImpl.classForName(ClassLoaderServiceImpl.java:141) [hibernate-core-4.0.1.Final.jar:4.0.1.Final]
at org.hibernate.service.jdbc.connections.internal.ConnectionProviderInitiator.instantiateExplicitConnectionProvider(ConnectionProviderInitiator.java:187) [hibernate-core-4.0.1.Final.jar:4.0.1.Final]
... 81 more
Caused by: java.lang.ClassNotFoundException: Could not load requested class : org.hibernate.service.jdbc.connections.internal.C3P0ConnectionProvider
at org.hibernate.service.classloading.internal.ClassLoaderServiceImpl$1.findClass(ClassLoaderServiceImpl.java:99) [hibernate-core-4.0.1.Final.jar:4.0.1.Final]
at java.lang.ClassLoader.loadClass(ClassLoader.java:307) [rt.jar:1.6.0_12]
at java.lang.ClassLoader.loadClass(ClassLoader.java:252) [rt.jar:1.6.0_12]
at org.hibernate.service.classloading.internal.ClassLoaderServiceImpl.classForName(ClassLoaderServiceImpl.java:138) [hibernate-core-4.0.1.Final.jar:4.0.1.Final]
... 82 more
我可以在部署目录中看到 hibernate-c3p0-4.0.1.Final.jar 和 c3p0-0.9.1.jar ，它们肯定被包括在内。我什至打开了 hibernate-c3p0-4.0.1.Final.jar 以确保该类确实在其中，并且正是它应该在的位置。
我一直在调试器中逐步完成。第一次，ModuleClassLoader 为 deployment.tdm-web-proof-of-concept.war:main 成功加载了该类。第二次， org.hibernate:main 的 ModuleClassLoader 正在尝试但未能找到它。我确信这是某种配置问题，休眠模块的类加载器看不到这一点。有什么想法可以指出正确的方向吗？