数据库连接错误！高手帮看下

[hanshuihu]

Exception.................org.apache.tomcat.dbcp.dbcp.SQLNestedException: Cannot load JDBC driver class 'oracle.jdbc.driver.OracleDriver'
@@@@@@@@@@@@@@@@@@@@建立连接！
2010-8-12 11:57:22 org.apache.catalina.core.StandardWrapperValve invoke
严重: Servlet.service() for servlet jsp threw exception
java.lang.NullPointerException
at com.gt.login.Login.<init>(Login.java:51)
at org.apache.jsp.login_jsp._jspService(login_jsp.java:84)
at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:70)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:803)
at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:384)
at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:320)
at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:266)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:803)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:228)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:175)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:128)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:104)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:216)
at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:844)
at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:634)
at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:445)
at java.lang.Thread.run(Thread.java:619)

[l3751202]

把驱动加到tomcat的lib下

[hanshuihu]

我包都在WEB-INF下的lib中啊 对着呢啊

[sxb372435741]

ojdbc14.jar换成ojdbc6.jar再加上classes12.jar一起放到你的tomcat的lib下就可以了。

[wmdonald]

把jar包放到tomcat的lib目录下...

[hanshuihu]

谢谢各位问题解决了
jar包需要放在tomcat的lib下就好了

[dqsweet]

少了数据库连接jar包

[hanshuihu]

ojdbc14.jar
classes12.jar
这两个包已经加上去了

[Never_lets_off]

[Quote=引用 2 楼 hanshuihu 的回复:]

ojdbc14.jar
classes12.jar
这两个包已经加上去了
[/Quote]
+

[hanshuihu]

[Quote=引用 3 楼 never_lets_off 的回复:]
引用 2 楼 hanshuihu 的回复:

ojdbc14.jar
classes12.jar
这两个包已经加上去了

+
[/Quote]
已经在lib目录中了

[qysnowqy]

楼主试试都删除了，重新加一次=。=

[yang_208]

缺少 jar 包

[行舟]

你是在web容器中抛出的错误。LZ你应该把 驱动包（classes12.jar,ojdbc14.jar） 放到WEB-INF的lib下面或者copy到容器的common/lib目录下！

[tivy2009]

添加数据库驱动包，clean后在编辑!