今天启动TOMCAT时出现一个非常无语的异常，大家看看，看怎么解决！

lffsonic 2009-06-20 10:29:04

信息: Initializing Spring root WebApplicationContext

2009-06-20 10:01:00,859 [org.hibernate.util.JDBCExceptionReporter]-[ERROR] Cannot create PoolableConnectionFactory (Communications link failure due to underlying exception: 



** BEGIN NESTED EXCEPTION ** 



java.net.SocketException

MESSAGE: java.net.ConnectException: Connection refused: connect



STACKTRACE:



java.net.SocketException: java.net.ConnectException: Connection refused: connect

	at com.mysql.jdbc.StandardSocketFactory.connect(StandardSocketFactory.java:156)

	at com.mysql.jdbc.MysqlIO.<init>(MysqlIO.java:276)

	at com.mysql.jdbc.Connection.createNewIO(Connection.java:2666)

	at com.mysql.jdbc.Connection.<init>(Connection.java:1531)

	at com.mysql.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:266)

	at org.apache.commons.dbcp.DriverConnectionFactory.createConnection(DriverConnectionFactory.java:38)

	at org.apache.commons.dbcp.PoolableConnectionFactory.makeObject(PoolableConnectionFactory.java:294)

	at org.apache.commons.dbcp.BasicDataSource.validateConnectionFactory(BasicDataSource.java:1247)

	at org.apache.commons.dbcp.BasicDataSource.createDataSource(BasicDataSource.java:1221)

	at org.apache.commons.dbcp.BasicDataSource.getConnection(BasicDataSource.java:880)

	at org.springframework.orm.hibernate3.LocalDataSourceConnectionProvider.getConnection(LocalDataSourceConnectionProvider.java:82)

	at org.hibernate.cfg.SettingsFactory.buildSettings(SettingsFactory.java:84)

	at org.hibernate.cfg.Configuration.buildSettings(Configuration.java:2073)

	at org.hibernate.cfg.Configuration.buildSessionFactory(Configuration.java:1298)

	at org.springframework.orm.hibernate3.LocalSessionFactoryBean.newSessionFactory(LocalSessionFactoryBean.java:816)

	at org.springframework.orm.hibernate3.LocalSessionFactoryBean.buildSessionFactory(LocalSessionFactoryBean.java:734)

	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)

	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:217)

	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.web.context.ContextLoader.createWebApplicationContext(ContextLoader.java:255)

	at org.springframework.web.context.ContextLoader.initWebApplicationContext(ContextLoader.java:199)

	at org.springframework.web.context.ContextLoaderListener.contextInitialized(ContextLoaderListener.java:45)

	at org.apache.catalina.core.StandardContext.listenerStart(StandardContext.java:3830)

	at org.apache.catalina.core.StandardContext.start(StandardContext.java:4337)

	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: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)





** END NESTED EXCEPTION **







Last packet sent to the server was 16 ms ago.)

情况说明：
1.首先要说的是，我TOMCAT里面只部署了一个项目，而且项目里使用的数据库为ORACLE，是连接到公司的数据库服务器上的
2.昨天下载安装了个MYSQL，就出现这个异常了，可是我在项目里面没有使用MYSQL的数据库，以前TOMCAT启动都是正常的，
3.最初以为是安装了MYSQL的问题，可是我把它卸载了，还是出现以上的异常
我仔细查看项目的配置文件
没有任何与MYSQL相关的配置。
这个问题很奇怪，项目还是没有正常运行，但是启动速度变慢了，以前10S，现在都要20S，
那位高手来说明下什么原因

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