异常-配置数据库错误

严重: Exception sending context initialized event to listener instance of class com.tywire.tadu.wap.utils.AppInitListenerorg.springframework.beans.factory.BeanCreationException: Error creating bean with name 'taduSessionId' defined in file [D:\tomcat-6.0\webapps\ROOT\WEB-INF\classes\applicationContext-dao.xml]: Invocation of init method failed; nested exception is java.lang.NullPointerExceptionat org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1336)at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:471)at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory$1.run(AbstractAutowireCapableBeanFactory.java:409)at java.security.AccessController.doPrivileged(Native Method)at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:380)at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:264)at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:220)at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:261)at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:185)at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:164)at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:423)at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:729)at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:381)at org.springframework.context.support.ClassPathXmlApplicationContext.<init>(ClassPathXmlApplicationContext.java:139)at org.springframework.context.support.ClassPathXmlApplicationContext.<init>(ClassPathXmlApplicationContext.java:83)at com.tywire.tadu.wap.utils.AppContext.<init>(AppContext.java:19)at com.tywire.tadu.wap.utils.AppContext.getInstance(AppContext.java:26)at com.tywire.tadu.wap.utils.AppInitListener.contextInitialized(AppInitListener.java:19)at org.apache.catalina.core.StandardContext.listenerStart(StandardContext.java:3934)at org.apache.catalina.core.StandardContext.start(StandardContext.java:4429)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:526)at org.apache.catalina.startup.HostConfig.deployDirectory(HostConfig.java:987)at org.apache.catalina.startup.HostConfig.deployDirectories(HostConfig.java:909)at org.apache.catalina.startup.HostConfig.deployApps(HostConfig.java:495)at org.apache.catalina.startup.HostConfig.start(HostConfig.java:1206)at org.apache.catalina.startup.HostConfig.lifecycleEvent(HostConfig.java:314)at org.apache.catalina.util.LifecycleSupport.fireLifecycleEvent(LifecycleSupport.java:119)at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1053)at org.apache.catalina.core.StandardHost.start(StandardHost.java:722)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:583)at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)at java.lang.reflect.Method.invoke(Method.java:597)at org.apache.catalina.startup.Bootstrap.start(Bootstrap.java:288)at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:413)Caused by: java.lang.NullPointerExceptionat org.hibernate.cfg.SettingsFactory.buildSettings(SettingsFactory.java:169)at org.hibernate.cfg.Configuration.buildSettingsInternal(Configuration.java:2863)at org.hibernate.cfg.Configuration.buildSettings(Configuration.java:2859)at org.hibernate.cfg.Configuration.buildSessionFactory(Configuration.java:1870)at org.springframework.orm.hibernate3.LocalSessionFactoryBean.newSessionFactory(LocalSessionFactoryBean.java:814)at org.springframework.orm.hibernate3.LocalSessionFactoryBean.buildSessionFactory(LocalSessionFactoryBean.java:732)at org.springframework.orm.hibernate3.AbstractSessionFactoryBean.afterPropertiesSet(AbstractSessionFactoryBean.java:211)at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.invokeInitMethods(AbstractAutowireCapableBeanFactory.java:1367)at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1333)... 41 more

如果配置文件中配置错了数据源地址，导致higernate读取配置的数据源时报空指针，从而引发了配置文件的错误。