Connecting Oracle by JDBC in Linux

I'm using oracle8.1.7, redhat 7.2,Apache as webserver and tomcat
as containers, all these work very well. but I have a problem
connecting oracle with JDBC.
I've installed the JDBC driver by setting the classpath
in .bash_profile of oracle, but when I run the a jsp which try
to connect the database, it return the exception error which
tell me the suitable driver is not found! Can anyone tell me why?
By the way, I'm using JDK1.3 and the JDBC driver is
classes12.zip. Please help me out.

Double Post
http://forum.java.sun.com/thread.jspa?threadID=673989

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    127.0.0.1 localhost.localdomain localhost
    [oracle@localhost ~]$ lsnrctl status
    LSNRCTL for Linux: Version 10.2.0.1.0 - Production on 09-JUL-2010 16:00:14
    Copyright (c) 1991, 2005, Oracle. All rights reserved.
    Connecting to (DESCRIPTION=(ADDRESS=(PROTOCOL=TCP)(HOST=localhost.localdomain)(PORT=1521)))
    STATUS of the LISTENER
    Alias LISTENER
    Version TNSLSNR for Linux: Version 10.2.0.1.0 - Production
    Start Date 09-JUL-2010 13:28:24
    Uptime 0 days 2 hr. 31 min. 49 sec
    Trace Level off
    Security ON: Local OS Authentication
    SNMP OFF
    Listener Parameter File /u01/app/oracle/product/10.2.0/db_1/network/admin/listener.ora
    Listener Log File /u01/app/oracle/product/10.2.0/db_1/network/log/listener.log
    Listening Endpoints Summary...
    (DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=localhost.localdomain)(PORT=1521)))
    Services Summary...
    Service "PLSExtProc" has 1 instance(s).
    Instance "PLSExtProc", status UNKNOWN, has 1 handler(s) for this service...
    Service "orcl" has 2 instance(s).
    Instance "ORCL", status UNKNOWN, has 1 handler(s) for this service...
    Instance "orcl", status READY, has 1 handler(s) for this service...
    Service "orclXDB" has 1 instance(s).
    Instance "orcl", status READY, has 1 handler(s) for this service...
    Service "orcl_XPT" has 1 instance(s).
    Instance "orcl", status READY, has 1 handler(s) for this service...
    The command completed successfully
    [oracle@localhost ~]$ lsnrctl status
    LSNRCTL for Linux: Version 10.2.0.1.0 - Production on 09-JUL-2010 16:00:19
    Copyright (c) 1991, 2005, Oracle. All rights reserved.
    Connecting to (DESCRIPTION=(ADDRESS=(PROTOCOL=TCP)(HOST=localhost.localdomain)(PORT=1521)))
    STATUS of the LISTENER
    Alias LISTENER
    Version TNSLSNR for Linux: Version 10.2.0.1.0 - Production
    Start Date 09-JUL-2010 13:28:24
    Uptime 0 days 2 hr. 31 min. 54 sec
    Trace Level off
    Security ON: Local OS Authentication
    SNMP OFF
    Listener Parameter File /u01/app/oracle/product/10.2.0/db_1/network/admin/listener.ora
    Listener Log File /u01/app/oracle/product/10.2.0/db_1/network/log/listener.log
    Listening Endpoints Summary...
    (DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=localhost.localdomain)(PORT=1521)))
    Services Summary...
    Service "PLSExtProc" has 1 instance(s).
    Instance "PLSExtProc", status UNKNOWN, has 1 handler(s) for this service...
    Service "orcl" has 2 instance(s).
    Instance "ORCL", status UNKNOWN, has 1 handler(s) for this service...
    Instance "orcl", status READY, has 1 handler(s) for this service...
    Service "orclXDB" has 1 instance(s).
    Instance "orcl", status READY, has 1 handler(s) for this service...
    Service "orcl_XPT" has 1 instance(s).
    Instance "orcl", status READY, has 1 handler(s) for this service...
    The command completed successfully
    [oracle@localhost ~]$ [oracle@localhost ~]$ lsnrctl service
    LSNRCTL for Linux: Version 10.2.0.1.0 - Production on 09-JUL-2010 16:03:25
    Copyright (c) 1991, 2005, Oracle. All rights reserved.
    Connecting to (DESCRIPTION=(ADDRESS=(PROTOCOL=TCP)(HOST=localhost.localdomain)(PORT=1521)))
    Services Summary...
    Service "PLSExtProc" has 1 instance(s).
    Instance "PLSExtProc", status UNKNOWN, has 1 handler(s) for this service...
    Handler(s):
    "DEDICATED" established:0 refused:0
    LOCAL SERVER
    Service "orcl" has 2 instance(s).
    Instance "ORCL", status UNKNOWN, has 1 handler(s) for this service...
    Handler(s):
    "DEDICATED" established:5 refused:0
    LOCAL SERVER
    Instance "orcl", status READY, has 1 handler(s) for this service...
    Handler(s):
    "DEDICATED" established:1 refused:0 state:ready
    LOCAL SERVER
    Service "orclXDB" has 1 instance(s).
    Instance "orcl", status READY, has 1 handler(s) for this service...
    Handler(s):
    "D000" established:0 refused:0 current:0 max:1022 state:ready
    DISPATCHER <machine: localhost.localdomain, pid: 3421>
    (ADDRESS=(PROTOCOL=tcp)(HOST=localhost.localdomain)(PORT=32808))
    Service "orcl_XPT" has 1 instance(s).
    Instance "orcl", status READY, has 1 handler(s) for this service...
    Handler(s):
    "DEDICATED" established:1 refused:0 state:ready
    LOCAL SERVER
    The command completed successfully
    [oracle@localhost ~]$ sqlplus / as sysdba
    SQL*Plus: Release 10.2.0.1.0 - Production on Fri Jul 9 16:03:38 2010
    Copyright (c) 1982, 2005, Oracle. All rights reserved.
    Connected to:
    Oracle Database 10g Enterprise Edition Release 10.2.0.1.0 - Production
    With the Partitioning, OLAP and Data Mining options
    SQL> startup mount
    ORA-32004: obsolete and/or deprecated parameter(s) specified
    ORA-01081: cannot start already-running ORACLE - shut it down first
    SQL> select * from v$version;
    BANNER
    Oracle Database 10g Enterprise Edition Release 10.2.0.1.0 - Prod
    PL/SQL Release 10.2.0.1.0 - Production
    CORE 10.2.0.1.0 Production
    TNS for Linux: Version 10.2.0.1.0 - Production
    NLSRTL Version 10.2.0.1.0 - Production
    SQL> exit
    Disconnected from Oracle Database 10g Enterprise Edition Release 10.2.0.1.0 - Production
    With the Partitioning, OLAP and Data Mining options
    [oracle@localhost ~]$

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