Oracle 数据库连接池问题

异常信息:

信息: validateJarFile(C:\tomcat6.0-tmss\webapps\tmss\WEB-INF\lib\servlet.jar) - jar not loaded. See Servlet Spec 2.3, section 9.7.2. Offending class: javax/servlet/Servlet.class
org.apache.tomcat.dbcp.dbcp.SQLNestedException: Cannot create PoolableConnectionFactory (Io 异常: The Network Adapter could not establish the connection)
 at org.apache.tomcat.dbcp.dbcp.BasicDataSource.createDataSource(BasicDataSource.java:1225)
 at org.apache.tomcat.dbcp.dbcp.BasicDataSource.getConnection(BasicDataSource.java:880)
 at com.liqi.utils.support.DbSupport.getConnection(DbSupport.java:16)
 at com.liqi.utils.DbUtil.getConnection(DbUtil.java:34)
 at com.liqi.servlet.InitServlet.init(InitServlet.java:38)
 at javax.servlet.GenericServlet.init(GenericServlet.java:212)
 at org.apache.catalina.core.StandardWrapper.loadServlet(StandardWrapper.java:1173)
 at org.apache.catalina.core.StandardWrapper.load(StandardWrapper.java:993)
 at org.apache.catalina.core.StandardContext.loadOnStartup(StandardContext.java:4149)
 at org.apache.catalina.core.StandardContext.start(StandardContext.java:4458)
 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:585)
 at org.apache.catalina.startup.Bootstrap.start(Bootstrap.java:288)
 at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:413)
Caused by: java.sql.SQLException: Io 异常: The Network Adapter could not establish the connection
 at oracle.jdbc.driver.DatabaseError.throwSqlException(DatabaseError.java:145)
 at oracle.jdbc.driver.DatabaseError.throwSqlException(DatabaseError.java:190)
 at oracle.jdbc.driver.DatabaseError.throwSqlException(DatabaseError.java:363)
 at oracle.jdbc.driver.T4CConnection.logon(T4CConnection.java:401)
 at oracle.jdbc.driver.PhysicalConnection.<init>(PhysicalConnection.java:441)
 at oracle.jdbc.driver.T4CConnection.<init>(T4CConnection.java:165)
 at oracle.jdbc.driver.T4CDriverExtension.getConnection(T4CDriverExtension.java:35)
 at oracle.jdbc.driver.OracleDriver.connect(OracleDriver.java:839)
 at org.apache.tomcat.dbcp.dbcp.DriverConnectionFactory.createConnection(DriverConnectionFactory.java:38)
 at org.apache.tomcat.dbcp.dbcp.PoolableConnectionFactory.makeObject(PoolableConnectionFactory.java:294)
 at org.apache.tomcat.dbcp.dbcp.BasicDataSource.validateConnectionFactory(BasicDataSource.java:1247)
 at org.apache.tomcat.dbcp.dbcp.BasicDataSource.createDataSource(BasicDataSource.java:1221)
 ... 31 more
2012-03-01 09:46:10,406 ERROR main com.liqi.utils.DbUtil - org.apache.tomcat.dbcp.dbcp.SQLNestedException: Cannot create PoolableConnectionFactory (Io 异常: The Network Adapter could not establish the connection)
2012-03-01 09:46:10,406 ERROR main com.liqi.servlet.InitServlet - 数据库连接池创建失败！
2012-3-1 9:46:10 org.apache.catalina.core.ApplicationContext log
严重: StandardWrapper.Throwable
java.lang.RuntimeException: 数据库连接池创建失败！
 at com.liqi.servlet.InitServlet.init(InitServlet.java:43)
 at javax.servlet.GenericServlet.init(GenericServlet.java:212)
 at org.apache.catalina.core.StandardWrapper.loadServlet(StandardWrapper.java:1173)
 at org.apache.catalina.core.StandardWrapper.load(StandardWrapper.java:993)
 at org.apache.catalina.core.StandardContext.loadOnStartup(StandardContext.java:4149)
 at org.apache.catalina.core.StandardContext.start(StandardContext.java:4458)
 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:585)
 at org.apache.catalina.startup.Bootstrap.start(Bootstrap.java:288)
 at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:413)
2012-3-1 9:46:10 org.apache.catalina.core.StandardContext loadOnStartup
严重: Servlet /tmss threw load() exception
java.lang.RuntimeException: 数据库连接池创建失败！
 at com.liqi.servlet.InitServlet.init(InitServlet.java:43)
 at javax.servlet.GenericServlet.init(GenericServlet.java:212)
 at org.apache.catalina.core.StandardWrapper.loadServlet(StandardWrapper.java:1173)
 at org.apache.catalina.core.StandardWrapper.load(StandardWrapper.java:993)
 at org.apache.catalina.core.StandardContext.loadOnStartup(StandardContext.java:4149)
 at org.apache.catalina.core.StandardContext.start(StandardContext.java:4458)
 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:585)
 at org.apache.catalina.startup.Bootstrap.start(Bootstrap.java:288)
 at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:413)
2012-3-1 9:46:10 org.apache.coyote.http11.Http11Protocol start

看到这些异常信息，经过上网查看解决办法，哥表示相当的无语，因为之前都没遇到过这样的问题，给我的第一反映就是网络连接错误,连接的是远程服务器上的地址,打开tomcat的content.xml文件看,没想到数据连接池url="jdbc:oracle:thin:@localhost:1521:Oacl"连的本地数据库也会有这样的错误，把url改成127.0.0.1也不行,后面把url改成本机的IP地址就行了，我就感觉奇怪了难道localhost/127.0.0.1 与本机的IP不是一样的吗？(本人关于网络的一窍不通)，还是我数据库监听器配错了呢？ 之前都没遇到过之类的问题，想大侠们帮忙解决一下。谢谢了！