更改JDBC后想改回来，就报这种500的错误，该怎样解决啊。请教高手。

[zhutingqin]

大家快来救火啊，我今天想该了下JDBC的链接，但后来想改回来后就报如下的错误，我该怎么办呢，哪位高手指点下咯。先谢谢啦！

Error 500--Internal Server Error
javax.servlet.ServletException: [HTTP:101250][ServletContext(id=78630677,name=sybase_jiangxi,context-path=)]: Servlet class com.sitech.servlets.rightmanage.LoginServlet for servlet LoginServlet could not be loaded because a class on which it depends was not found in the classpath /weblogic/webapps/sybase_jiangxi/.deployables/sybase_jiangxi/WEB-INF/classes:/weblogic/bea/user_projects/domains/mydomain/./myserver/.wlnotdelete/extract/myserver_sybase_jiangxi_sybase_jiangxi/jarfiles/WEB-INF/lib/commons-beanutils.jar:/weblogic/bea/user_projects/domains/mydomain/./myserver/.wlnotdelete/extract/myserver_sybase_jiangxi_sybase_jiangxi/jarfiles/WEB-INF/lib/commons-collections.jar:/weblogic/bea/user_projects/domains/mydomain/./myserver/.wlnotdelete/extract/myserver_sybase_jiangxi_sybase_jiangxi/jarfiles/WEB-INF/lib/commons-dbcp-1.1.jar:/weblogic/bea/user_projects/domains/mydomain/./myserver/.wlnotdelete/extract/myserver_sybase_jiangxi_sybase_jiangxi/jarfiles/WEB-INF/lib/commons-digester.jar:/weblogic/bea/user_projects/domains/mydomain/./myserver/.wlnotdelete/extract/myserver_sybase_jiangxi_sybase_jiangxi/jarfiles/WEB-INF/lib/commons-fileupload.jar:/weblogic/bea/user_projects/domains/mydomain/./myserver/.wlnotdelete/extract/myserver_sybase_jiangxi_sybase_jiangxi/jarfiles/WEB-INF/lib/commons-lang.jar:/weblogic/bea/user_projects/domains/mydomain/./myserver/.wlnotdelete/extract/myserver_sybase_jiangxi_sybase_jiangxi/jarfiles/WEB-INF/lib/commons-logging.jar:/weblogic/bea/user_projects/domains/mydomain/./myserver/.wlnotdelete/extract/myserver_sybase_jiangxi_sybase_jiangxi/jarfiles/WEB-INF/lib/commons-pool-1.1.jar:/weblogic/bea/user_projects/domains/mydomain/./myserver/.wlnotdelete/extract/myserver_sybase_jiangxi_sybase_jiangxi/jarfiles/WEB-INF/lib/commons-validator.jar:/weblogic/bea/user_projects/domains/mydomain/./myserver/.wlnotdelete/extract/myserver_sybase_jiangxi_sybase_jiangxi/jarfiles/WEB-INF/lib/dom4j-full.jar:/weblogic/bea/user_projects/domains/mydomain/./myserver/.wlnotdelete/extract/myserver_sybase_jiangxi_sybase_jiangxi/jarfiles/WEB-INF/lib/j2ee.jar:/weblogic/bea/user_projects/domains/mydomain/./myserver/.wlnotdelete/extract/myserver_sybase_jiangxi_sybase_jiangxi/jarfiles/WEB-INF/lib/jakarta-oro.jar:/weblogic/bea/user_projects/domains/mydomain/./myserver/.wlnotdelete/extract/myserver_sybase_jiangxi_sybase_jiangxi/jarfiles/WEB-INF/lib/jcommon-1.0.0-pre2.jar:/weblogic/bea/user_projects/domains/mydomain/./myserver/.wlnotdelete/extract/myserver_sybase_jiangxi_sybase_jiangxi/jarfiles/WEB-INF/lib/jconn2.jar:/weblogic/bea/user_projects/domains/mydomain/./myserver/.wlnotdelete/extract/myserver_sybase_jiangxi_sybase_jiangxi/jarfiles/WEB-INF/lib/jfreechart-1.0.0-pre2.jar:/weblogic/bea/user_projects/domains/mydomain/./myserver/.wlnotdelete/extract/myserver_sybase_jiangxi_sybase_jiangxi/jarfiles/WEB-INF/lib/jspsmart.jar:/weblogic/bea/user_projects/domains/mydomain/./myserver/.wlnotdelete/extract/myserver_sybase_jiangxi_sybase_jiangxi/jarfiles/WEB-INF/lib/jstl.jar:/weblogic/bea/user_projects/domains/mydomain/./myserver/.wlnotdelete/extract/myserver_sybase_jiangxi_sybase_jiangxi/jarfiles/WEB-INF/lib/junit.jar:/weblogic/bea/user_projects/domains/mydomain/./myserver/.wlnotdelete/extract/myserver_sybase_jiangxi_sybase_jiangxi/jarfiles/WEB-INF/lib/log4j-1.2.8.jar:/weblogic/bea/user_projects/domains/mydomain/./myserver/.wlnotdelete/extract/myserver_sybase_jiangxi_sybase_jiangxi/jarfiles/WEB-INF/lib/oracle9ijdbcdriver.jar:/weblogic/bea/user_projects/domains/mydomain/./myserver/.wlnotdelete/extract/myserver_sybase_jiangxi_sybase_jiangxi/jarfiles/WEB-INF/lib/poi-3.0-alpha1-20050704.jar:/weblogic/bea/user_projects/domains/mydomain/./myserver/.wlnotdelete/extract/myserver_sybase_jiangxi_sybase_jiangxi/jarfiles/WEB-INF/lib/poi-contrib-3.0-alpha1-20050704.jar:/weblogic/bea/user_projects/domains/mydomain/./myserver/.wlnotdelete/extract/myserver_sybase_jiangxi_sybase_jiangxi/jarfiles/WEB-INF/lib/poi-scratchpad-3.0-alpha1-20050704.jar:/weblogic/bea/user_projects/domains/mydomain/./myserver/.wlnotdelete/extract/myserver_sybase_jiangxi_sybase_jiangxi/jarfiles/WEB-INF/lib/saxpath.jar:/weblogic/bea/user_projects/domains/mydomain/./myserver/.wlnotdelete/extract/myserver_sybase_jiangxi_sybase_jiangxi/jarfiles/WEB-INF/lib/servlet.jar:/weblogic/bea/user_projects/domains/mydomain/./myserver/.wlnotdelete/extract/myserver_sybase_jiangxi_sybase_jiangxi/jarfiles/WEB-INF/lib/standard.jar:/weblogic/bea/user_projects/domains/mydomain/./myserver/.wlnotdelete/extract/myserver_sybase_jiangxi_sybase_jiangxi/jarfiles/WEB-INF/lib/sybdriver.jar:/weblogic/bea/user_projects/domains/mydomain/./myserver/.wlnotdelete/extract/myserver_sybase_jiangxi_sybase_jiangxi/jarfiles/WEB-INF/lib/wwwframe.jar:/weblogic/bea/user_projects/domains/mydomain/./myserver/.wlnotdelete/extract/myserver_sybase_jiangxi_sybase_jiangxi.java.lang.NoClassDefFoundError: com/sitech/servlets/BaseControllerServlet.

at weblogic.servlet.internal.ServletStubImpl.prepareServlet(Lweblogic/servlet/internal/RequestCallback;)V(ServletStubImpl.java:906)
at weblogic.servlet.internal.ServletStubImpl.getServlet(Lweblogic/servlet/internal/RequestCallback;)Ljavax/servlet/Servlet;(ServletStubImpl.java:598)
at weblogic.servlet.internal.ServletStubImpl.invokeServlet(Ljavax/servlet/ServletRequest;Ljavax/servlet/ServletResponse;Lweblogic/servlet/internal/FilterChainImpl;)V(ServletStubImpl.java:406)
at weblogic.servlet.internal.ServletStubImpl.invokeServlet(Ljavax/servlet/ServletRequest;Ljavax/servlet/ServletResponse;)V(ServletStubImpl.java:348)
at weblogic.servlet.internal.WebAppServletContext$ServletInvocationAction.run()Ljava/lang/Object;(WebAppServletContext.java:6981)
at weblogic.security.acl.internal.AuthenticatedSubject.doAs(Lweblogic/security/subject/AbstractSubject;Ljava/security/PrivilegedAction;)Ljava/lang/Object;(AuthenticatedSubject.java:321)
at weblogic.security.service.SecurityManager.runAs(Lweblogic/security/acl/internal/AuthenticatedSubject;Lweblogic/security/acl/internal/AuthenticatedSubject;Ljava/security/PrivilegedAction;)Ljava/lang/Object;(SecurityManager.java:121)
at weblogic.servlet.internal.WebAppServletContext.invokeServlet(Lweblogic/servlet/internal/ServletRequestImpl;Lweblogic/servlet/internal/ServletResponseImpl;)V(WebAppServletContext.java:3892)
at weblogic.servlet.internal.ServletRequestImpl.execute(Lweblogic/kernel/ExecuteThread;)V(ServletRequestImpl.java:2766)
at weblogic.kernel.ExecuteThread.execute(Lweblogic/kernel/ExecuteRequest;)V(ExecuteThread.java:224)
at weblogic.kernel.ExecuteThread.run()V(ExecuteThread.java:183)
at java.lang.Thread.startThreadFromVM(Ljava/lang/Thread;)V(Unknown Source)

[小爽昵称已被占用]

晕，，这么长，，把你怎么改的贴上来吧。

[zhutingqin]

This page allows you to define the general configuration of this JDBC connection pool.
Name: tt_Sybase_Pool
The name of this JDBC connection pool.
URL:
The URL of the database to connect to. The format of the URL varies by JDBC driver.
Driver Classname:
The full package name of JDBC driver class used to create the physical database connections in the connection pool. (Note that this driver class must be in the classpath of any server to which it is deployed.)
Properties: user=billing
url=jdbc:sybase:Tds:130.75.1.58:6888/cfg
networkProtocol=Tds
portNumber=6888
userName=billing
databaseName=cfg
serverName=130.75.1.58

The list of properties passed to the JDBC driver that are used to create physical database connections. For example: server=dbserver1. List each property=value pair on a separate line.
Password:
Confirm Password:
The database account password used in the physical database connection.
Open String Password:
Confirm Open String Password:
The password for the XA open string. (If set, this value overrides a password in an open string in Properties.)

我就改了下IP地市以及用户名和密码，其它什么都没有动过。现在改回来后就登陆不了啦，weblogic重启后还是没用。