Exception sending context initialized event to listener instance of class org.springframework.web.c

今天试着重新搭建了SSH（spring+Struts+hibernate）框架，启动Tomcat测试搭建是否成功时发现出了问题，详细错误如下：

严重: Exception sending context initialized event to listener instance of class org.springframework.web.context.ContextLoaderListenerorg.springframework.beans.factory.BeanCreationException: Error creating bean with name 'sessionFactory' defined in ServletContext resource [/WEB-INF/applicationContext.xml]: Invocation of init method failed; nested exception is org.hibernate.HibernateException: 'hibernate.dialect' must be set when no Connection avalable    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1420)    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:519)    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:456)    at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:291)    at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:222)    at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:288)    at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:190)    at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:563)    at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:895)    at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:425)    at org.springframework.web.context.ContextLoader.createWebApplicationContext(ContextLoader.java:276)    at org.springframework.web.context.ContextLoader.initWebApplicationContext(ContextLoader.java:197)    at org.springframework.web.context.ContextLoaderListener.contextInitialized(ContextLoaderListener.java:47)    at org.apache.catalina.core.StandardContext.listenerStart(StandardContext.java:3827)    at org.apache.catalina.core.StandardContext.start(StandardContext.java:4334)    at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:791)    at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:771)    at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:525)    at org.apache.catalina.startup.HostConfig.deployDirectory(HostConfig.java:920)    at org.apache.catalina.startup.HostConfig.deployDirectories(HostConfig.java:883)    at org.apache.catalina.startup.HostConfig.deployApps(HostConfig.java:492)    at org.apache.catalina.startup.HostConfig.start(HostConfig.java:1138)    at org.apache.catalina.startup.HostConfig.lifecycleEvent(HostConfig.java:311)    at org.apache.catalina.util.LifecycleSupport.fireLifecycleEvent(LifecycleSupport.java:117)    at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1053)    at org.apache.catalina.core.StandardHost.start(StandardHost.java:719)    at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1045)    at org.apache.catalina.core.StandardEngine.start(StandardEngine.java:443)    at org.apache.catalina.core.StandardService.start(StandardService.java:516)    at org.apache.catalina.core.StandardServer.start(StandardServer.java:710)    at org.apache.catalina.startup.Catalina.start(Catalina.java:566)    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)    at java.lang.reflect.Method.invoke(Method.java:498)    at org.apache.catalina.startup.Bootstrap.start(Bootstrap.java:288)    at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:413)Caused by: org.hibernate.HibernateException: 'hibernate.dialect' must be set when no Connection avalable    at org.hibernate.dialect.resolver.DialectFactory.buildDialect(DialectFactory.java:107)    at org.hibernate.cfg.SettingsFactory.buildSettings(SettingsFactory.java:138)    at org.hibernate.cfg.Configuration.buildSettingsInternal(Configuration.java:2119)    at org.hibernate.cfg.Configuration.buildSettings(Configuration.java:2115)    at org.hibernate.cfg.Configuration.buildSessionFactory(Configuration.java:1339)    at org.springframework.orm.hibernate3.LocalSessionFactoryBean.newSessionFactory(LocalSessionFactoryBean.java:860)    at org.springframework.orm.hibernate3.LocalSessionFactoryBean.buildSessionFactory(LocalSessionFactoryBean.java:779)    at org.springframework.orm.hibernate3.AbstractSessionFactoryBean.afterPropertiesSet(AbstractSessionFactoryBean.java:211)    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.invokeInitMethods(AbstractAutowireCapableBeanFactory.java:1477)    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1417)    ... 36 more

调试了好久发现spring配置问题，spring配置头为：

<?xml version="1.0" encoding="UTF-8"?><beans    xmlns="http://www.springframework.org/schema/beans"    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"    xmlns:p="http://www.springframework.org/schema/p"    xsi:schemaLocation="http://www.springframework.org/schema/beans                         http://www.springframework.org/schema/beans/spring-beans-3.0.xsd                        ">`

正确的配置头为：

<?xml version="1.0" encoding="UTF-8"?><beans    xmlns="http://www.springframework.org/schema/beans"    xmlns:aop="http://www.springframework.org/schema/aop"    xmlns:tx="http://www.springframework.org/schema/tx"    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"    xmlns:p="http://www.springframework.org/schema/p"    xsi:schemaLocation="http://www.springframework.org/schema/beans                         http://www.springframework.org/schema/beans/spring-beans-3.0.xsd                        http://www.springframework.org/schema/aop                              http://www.springframework.org/schema/aop/spring-aop-3.0.xsd                            http://www.springframework.org/schema/tx                              http://www.springframework.org/schema/tx/spring-tx-3.0.xsd">

然而修改后还是显示spring配置异常，检查了路径问题，修改了web.xml文件中对应的代码

<context-param>     <param-name>contextConfigLocation</param-name>        <param-value>/WEB-INF/applicationContext-*.xml,classpath*:applicationContext-*.xml</param-value></context-param>

重新启动Tomcat，运行成功

明白其中的规律后问题就很好解决了，有时候碰到的错误多了等下下次再碰到的时候也会知道相应解决方法。