Can't find oracle jdbc driver Hi, every one, I installed oracle9i on my redhat8.0 server. I also installed tomcat4.0.6. I put follow in the classpath: /usr/oracle/product/9i/jdbc/lib/classes12.jar When I call oracle with my jsp code, it always gives me the error message: ClassNotFoundException:oracle.jdbc.driver.OracleDriver I used the same source code on redhat7.1, oracle8i and tomcat3.2.1. No any problem.  But why this one doesn't work?   Thanks in advance Can't find oracle jdbc driver classes12.jar  没有加入到 classpath 中。 把 classes12.jar 拷贝到 tomcat 的 lib 目录去吧，tomcat 启动时会自己找到的。 Can't find oracle jdbc driver --> 我也遇到同样问题了 照上述方法作了，还是不行，还有什么其他步骤么？ Can't find oracle jdbc driver 那你考到WEB-INF/lib下试试吧 我现在觉得JAVA的这种设置方法很不好：） Can't find oracle jdbc driver Hi, cinc, I did as same as you told me. It works great. Thank you very much. [ 关闭窗口 ]