用jdbc连接oracle找不到驱动问题。

[andy_bzhw]

在本机win2000 professional上配置tomcat4.0连接oracle8.1.7数据库时遇到一下问题：
javax.servlet.ServletException: oracle.jdbc.driver.OracleDriver
以下是一些环境变量设置：
classpath=.;d:\jdk1.3\lib\tools.jar;d:\Tomcat\classes;d:\Tomcat\lib;d:\oracle\ora81\jdbc\lib\classes111.zip;d:\oracle\ora81\jdbc\lib\nls_charset11.zip;d:\Tomcat\webapps\ROOT\WEB-INF\classes\.;d:\Tomcat\webapps\ROOT\WEB-INF\classes
java_home=d:\jdk1.3
tomcat_home=d:\Tomcat
path=.;d:\jdk1.3\;d:\jdk1.3\bin;d:\jdk1.3\jre\bin;D:\oracle\ora81\bin;D:\oracle\ora81\Apache\Perl\5.00503\bin\mswin32-x86;C:\Program Files\Oracle\jre\1.1.7\bin;%SystemRoot%\system32;%SystemRoot%;%SystemRoot%\System32\Wbem

[chrischen79]

exception给的全一些

还有,你的jdbc driver包放在哪里的,如果放在自己的webapp目录下面的WEB-INF/classes/lib下,就不需要设置class path

[andy_bzhw]

我把classes111.zip和nls_charset11.zip放到了d:\Tomcat\webapps\ROOT\WEB-INF\classes\lib下,再运行页面还是不行。下面是报错信息：
type Exception report

message Internal Server Error

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

exception

javax.servlet.ServletException: oracle.jdbc.driver.OracleDriver
at org.apache.jasper.runtime.PageContextImpl.handlePageException(PageContextImpl.java:463)
at org.apache.jsp.lylist$jsp._jspService(lylist$jsp.java:99)
at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:107)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)
at org.apache.jasper.servlet.JspServlet$JspServletWrapper.service(JspServlet.java:202)
at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:382)
at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:474)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:247)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:193)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:243)
at org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline.java:566)
at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:472)
at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:943)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:190)
at org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline.java:566)
at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:472)
at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:943)
at org.apache.catalina.core.StandardContext.invoke(StandardContext.java:2343)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:180)
at org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline.java:566)
at org.apache.catalina.valves.ErrorDispatcherValve.invoke(ErrorDispatcherValve.java:170)
at org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline.java:564)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:170)
at org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline.java:564)
at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:468)
at org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline.java:564)
at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:472)
at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:943)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:174)
at org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline.java:566)
at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:472)
at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:943)
at org.apache.catalina.connector.http.HttpProcessor.process(HttpProcessor.java:1012)
at org.apache.catalina.connector.http.HttpProcessor.run(HttpProcessor.java:1107)
at java.lang.Thread.run(Thread.java:484)


root cause

java.lang.ClassNotFoundException: oracle.jdbc.driver.OracleDriver
at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1394)
at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1243)
at org.apache.jasper.servlet.JasperLoader.loadClass(JasperLoader.java:198)
at org.apache.jasper.servlet.JasperLoader.loadClass(JasperLoader.java:132)
at java.lang.ClassLoader.loadClassInternal(ClassLoader.java:313)
at java.lang.Class.forName0(Native Method)
at java.lang.Class.forName(Class.java:120)
at org.apache.jsp.lylist$jsp._jspService(lylist$jsp.java:73)
at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:107)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)
at org.apache.jasper.servlet.JspServlet$JspServletWrapper.service(JspServlet.java:202)
at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:382)
at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:474)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:247)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:193)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:243)
at org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline.java:566)
at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:472)
at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:943)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:190)
at org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline.java:566)
at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:472)
at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:943)
at org.apache.catalina.core.StandardContext.invoke(StandardContext.java:2343)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:180)
at org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline.java:566)
at org.apache.catalina.valves.ErrorDispatcherValve.invoke(ErrorDispatcherValve.java:170)
at org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline.java:564)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:170)
at org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline.java:564)
at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:468)
at org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline.java:564)
at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:472)
at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:943)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:174)
at org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline.java:566)
at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:472)
at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:943)
at org.apache.catalina.connector.http.HttpProcessor.process(HttpProcessor.java:1012)
at org.apache.catalina.connector.http.HttpProcessor.run(HttpProcessor.java:1107)
at java.lang.Thread.run(Thread.java:484)



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

[pengji]

CLASSPATH设置的没问题检查一下你的代码！

[windson]

classpath没问题

[andy_bzhw]

源代码如下：
Class.forName("oracle.jdbc.driver.OracleDriver");
Connection con=DriverManager.getConnection("jdbc:oracle:thin:@localhost:1521:orcl","ccct","ccct");
Statement stmt=con.createStatement();
ResultSet rs=stmt.executeQuery("select * from liuyan");
while(rs.next())
{
out.println(rs.getString(1));
}
rs.close();
stmt.close();
con.close();

[merry_xin]

把d:\oracle\ora81\jdbc\lib\classes111.zip 放在classpath的第一位。

[andy_bzhw]

放在第一位也是不行。:(

[hht]

如果这也不行，修改tomcat.bat，在那里面添加驱动

[chrischen79]

不要放在d:\Tomcat\webapps\ROOT\WEB-INF\classes\lib
你的webapps目录是什么？放在那个目录的WEB-INF\classes\lib下，还有你的webapps有没有通过tomcat/manager安装？