Tomcat4.1连接数据库（Oracle）的问题

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Tomcat4.1连接数据库（Oracle）的问题5

WebServer: Apache2
APP Server: Tomcat4.1

运行程序时，初始画面（index.html）可以运行，但点击任何LINK，都会报以下错误。。
希望大家帮忙解决一下。。

HTTP Status 500 -

--------------------------------------------------------------------------------

type Exception report

message

description The server encountered an internal error () that prevented it from fulfilling this request.

exception

java.lang.ArrayIndexOutOfBoundsException: 7
at oracle.security.o3logon.C0.r(C0)
at oracle.security.o3logon.C0.l(C0)
at oracle.security.o3logon.C1.c(C1)
at oracle.security.o3logon.O3LoginClientHelper.getEPasswd(O3LoginClientHelper)
at oracle.jdbc.ttc7.O3log.<init>(O3log.java:289)
at oracle.jdbc.ttc7.TTC7Protocol.logon(TTC7Protocol.java:251)
at oracle.jdbc.driver.OracleConnection.<init>(OracleConnection.java:246)
at oracle.jdbc.driver.OracleDriver.getConnectionInstance(OracleDriver.java:365)
at oracle.jdbc.driver.OracleDriver.connect(OracleDriver.java:260)
at java.sql.DriverManager.getConnection(DriverManager.java:512)
at java.sql.DriverManager.getConnection(DriverManager.java:171)
at btj.JdbcManager.openDatabase(JdbcManager.java:93)
at btj.AbstractServlet.doPost(AbstractServlet.java:87)
at btj.AbstractServlet.doGet(AbstractServlet.java:62)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:618)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:720)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:199)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:145)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:210)
at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:596)
at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:433)
at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:955)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:139)
at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:596)
at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:433)
at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:955)
at org.apache.catalina.core.StandardContext.invoke(StandardContext.java:2460)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:133)
at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:596)
at org.apache.catalina.valves.ErrorDispatcherValve.invoke(ErrorDispatcherValve.java:119)
at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:594)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:116)
at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:594)
at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:433)
at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:955)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:127)
at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:596)
at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:433)
at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:955)
at org.apache.coyote.tomcat4.CoyoteAdapter.service(CoyoteAdapter.java:157)
at org.apache.jk.server.JkCoyoteHandler.invoke(JkCoyoteHandler.java:200)
at org.apache.jk.common.HandlerRequest.invoke(HandlerRequest.java:291)
at org.apache.jk.common.ChannelSocket.invoke(ChannelSocket.java:775)
at org.apache.jk.common.ChannelSocket.processConnection(ChannelSocket.java:704)
at org.apache.jk.common.ChannelSocket$SocketConnection.runIt(ChannelSocket.java:897)
at org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:689)
at java.lang.Thread.run(Thread.java:534)

问题补充：
连接数据库的代码

public void openDatabase() throws BtjException{

String szFuncNm = "openDatabase()";

    szClass = ParameterManager.getSystemParameter("DB_CLASS");
    szDriver= ParameterManager.getSystemParameter("DB_DRIVER");
    szUser = ParameterManager.getSystemParameter("DB_USER");
    szPass = ParameterManager.getSystemParameter("DB_PASS");

try{
    // ドライバローディング
    Class.forName(szClass);
    conn = DriverManager.getConnection(szDriver, szUser, szPass);
    conn.setAutoCommit(false);
}
catch(ClassNotFoundException e){
    throw new BtjException(getClassNm(), szFuncNm,
   ConstError.ERR_DB_JDBC_NOT_FOUND, e.getMessage());
}
catch(SQLException e){
    throw new BtjException(getClassNm(), szFuncNm,
   ConstError.ERR_DB_LOGIN_FAILED, e);
}
    }

以下是读取的properties文件的内容
DB_CLASS   = oracle.jdbc.driver.OracleDriver
DB_DRIVER = jdbc:oracle:thin:@localhost:1521:orcl
DB_USER    = user
DB_PASS    = user
问题补充：
93行代码：
conn = DriverManager.getConnection(szDriver, szUser, szPass);
问题补充：
Oracle的驱动版本？？？在什么地方可以查呀？？？
我机器里直接装的Oracle 11g的服务端。。。
问题补充：
classes12.jar,还有ojdbc14.jar我都有。。。这两个文件要放在什么地方呀？？？
另外，我的JDK是1.4的。。。

问题补充：
各位，classes12.jar还有ojdbc14.jar我都放了，，还是一样的错误。。。
我晕了。。哭。。。。

问题补充：
我以前都没放。。。只是刚才放一下试试。。。。还是不好用。。。