关于tomcat浏览jsp时的编译错误（急！！！！）

Question

是不是你BEAN的路径放的不对?

Answer 1

e:\WebRoot\WEB-INF\classes\dates\JspCalendar.classes在不在？如果没有，考过来

Answer 2

楼上的，e:\WebRoot\WEB-INF\classes\dates\JspCalendar.classes是在的，要不然我用命令行是不可能编译通过的.
(注：C> cd \tomcat\work\Standalone\localhost\Study\jsp\dates
     C> javac  date_jsp.java
是成功的)

Answer 3

2楼的，浏览器显示的出错信息为：HTTP Status 500 - 
--------------------------------------------------------------------
type Exception reportmessage 
description The server encountered an internal error () that prevented it from fulfilling this request.exception org.apache.jasper.JasperException: Unable to compile class for JSP
at org.apache.jasper.JspCompilationContext.compile(JspCompilationContext.java:477)
at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:182)
at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:289)
at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:240)
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:260)
at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:643)
at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:480)
at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:995)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191)
at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:643)
at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:471)
at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:641)
at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:480)
at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:995)
at org.apache.catalina.core.StandardContext.invoke(StandardContext.java:2397)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:180)
at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:643)
at org.apache.catalina.valves.ErrorDispatcherValve.invoke(ErrorDispatcherValve.java:170)
at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:641)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:171)
at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:641)
at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:480)
at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:995)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:174)
at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:643)
at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:480)
at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:995)
at org.apache.coyote.tomcat4.CoyoteAdapter.service(CoyoteAdapter.java:223)
at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:405)
at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.processConnection(Http11Protocol.java:380)
at org.apache.tomcat.util.net.TcpWorkerThread.runIt(PoolTcpEndpoint.java:508)
at org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:533)
at java.lang.Thread.run(Thread.java:536)root cause org.apache.jasper.JasperException: Unable to compile class for JSPAn error occurred at line: 9 in the jsp file: /jsp/dates/date.jspGenerated servlet error:
    [javac] Compiling 1 source file
D:\tomcat4\work\Standalone\localhost\study\jsp\dates\date_jsp.java:43: package dates does not exist
      dates.JspCalendar clock = null;
           ^
An error occurred at line: 9 in the jsp file: /jsp/dates/date.jspGenerated servlet error:
D:\tomcat4\work\Standalone\localhost\study\jsp\dates\date_jsp.java:45: package dates does not exist
        clock = (dates.JspCalendar) pageContext.getAttribute("clock", PageContext.PAGE_SCOPE);
                      ^
An error occurred at line: 9 in the jsp file: /jsp/dates/date.jspGenerated servlet error:
D:\tomcat4\work\Standalone\localhost\study\jsp\dates\date_jsp.java:48: package dates does not exist
            clock = (dates.JspCalendar) java.beans.Beans.instantiate(this.getClass().getClassLoader(), "dates.JspCalendar");
                          ^
An error occurred at line: 13 in the jsp file: /jsp/dates/date.jspGenerated servlet error:
D:\tomcat4\work\Standalone\localhost\study\jsp\dates\date_jsp.java:61: package dates does not exist
      out.print(JspRuntimeLibrary.toString((((dates.JspCalendar)pageContext.findAttribute("clock")).getDayOfMonth())));
                                                   ^
An error occurred at line: 14 in the jsp file: /jsp/dates/date.jspGenerated servlet error:
D:\tomcat4\work\Standalone\localhost\study\jsp\dates\date_jsp.java:64: package dates does not exist
      out.print(JspRuntimeLibrary.toString((((dates.JspCalendar)pageContext.findAttribute("clock")).getYear())));
                                                   ^

Answer 4

An error occurred at line: 15 in the jsp file: /jsp/dates/date.jspGenerated servlet error:
D:\tomcat4\work\Standalone\localhost\study\jsp\dates\date_jsp.java:67: package dates does not exist
      out.print(JspRuntimeLibrary.toString((((dates.JspCalendar)pageContext.findAttribute("clock")).getMonth())));
                                                   ^
An error occurred at line: 16 in the jsp file: /jsp/dates/date.jspGenerated servlet error:
D:\tomcat4\work\Standalone\localhost\study\jsp\dates\date_jsp.java:70: package dates does not exist
      out.print(JspRuntimeLibrary.toString((((dates.JspCalendar)pageContext.findAttribute("clock")).getTime())));
                                                   ^
An error occurred at line: 17 in the jsp file: /jsp/dates/date.jspGenerated servlet error:
D:\tomcat4\work\Standalone\localhost\study\jsp\dates\date_jsp.java:73: package dates does not exist
      out.print(JspRuntimeLibrary.toString((((dates.JspCalendar)pageContext.findAttribute("clock")).getDate())));
                                                   ^
An error occurred at line: 18 in the jsp file: /jsp/dates/date.jspGenerated servlet error:
D:\tomcat4\work\Standalone\localhost\study\jsp\dates\date_jsp.java:76: package dates does not exist
      out.print(JspRuntimeLibrary.toString((((dates.JspCalendar)pageContext.findAttribute("clock")).getDay())));
                                                   ^
An error occurred at line: 19 in the jsp file: /jsp/dates/date.jspGenerated servlet error:
D:\tomcat4\work\Standalone\localhost\study\jsp\dates\date_jsp.java:79: package dates does not exist
      out.print(JspRuntimeLibrary.toString((((dates.JspCalendar)pageContext.findAttribute("clock")).getDayOfYear())));
                                                   ^
An error occurred at line: 20 in the jsp file: /jsp/dates/date.jspGenerated servlet error:
D:\tomcat4\work\Standalone\localhost\study\jsp\dates\date_jsp.java:82: package dates does not exist
      out.print(JspRuntimeLibrary.toString((((dates.JspCalendar)pageContext.findAttribute("clock")).getWeekOfYear())));
                                                   ^
An error occurred at line: 21 in the jsp file: /jsp/dates/date.jspGenerated servlet error:
D:\tomcat4\work\Standalone\localhost\study\jsp\dates\date_jsp.java:85: package dates does not exist
      out.print(JspRuntimeLibrary.toString((((dates.JspCalendar)pageContext.findAttribute("clock")).getEra())));
                                                   ^
An error occurred at line: 22 in the jsp file: /jsp/dates/date.jspGenerated servlet error:
D:\tomcat4\work\Standalone\localhost\study\jsp\dates\date_jsp.java:88: package dates does not exist
      out.print(JspRuntimeLibrary.toString((((dates.JspCalendar)pageContext.findAttribute("clock")).getDSTOffset())));
                                                   ^
An error occurred at line: 23 in the jsp file: /jsp/dates/date.jspGenerated servlet error:
D:\tomcat4\work\Standalone\localhost\study\jsp\dates\date_jsp.java:91: package dates does not exist
      out.print(JspRuntimeLibrary.toString((((dates.JspCalendar)pageContext.findAttribute("clock")).getZoneOffset())));
                                                   ^
14 errors at org.apache.jasper.compiler.DefaultErrorHandler.javacError(DefaultErrorHandler.java:120)
at org.apache.jasper.compiler.ErrorDispatcher.javacError(ErrorDispatcher.java:293)
at org.apache.jasper.compiler.Compiler.generateClass(Compiler.java:315)
at org.apache.jasper.compiler.Compiler.compile(Compiler.java:326)
at org.apache.jasper.JspCompilationContext.compile(JspCompilationContext.java:474)
at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:182)
at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:289)
at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:240)
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:260)
at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:643)
at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:480)
at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:995)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191)
at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:643)
at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:471)
at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:641)
at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:480)
at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:995)
at org.apache.catalina.core.StandardContext.invoke(StandardContext.java:2397)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:180)
at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:643)
at org.apache.catalina.valves.ErrorDispatcherValve.invoke(ErrorDispatcherValve.java:170)
at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:641)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:171)
at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:641)
at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:480)
at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:995)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:174)
at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:643)
at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:480)
at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:995)
at org.apache.coyote.tomcat4.CoyoteAdapter.service(CoyoteAdapter.java:223)
at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:405)
at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.processConnection(Http11Protocol.java:380)
at org.apache.tomcat.util.net.TcpWorkerThread.runIt(PoolTcpEndpoint.java:508)
at org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:533)
at java.lang.Thread.run(Thread.java:536)
--------------------------------------------------------------------
Apache Tomcat/4.1.10

Answer 5

是不是文件放的位置不对，照你说，你的jsp文件是放在c盘下，而javabean释放在e盘下。假如你jsp文件放在c:\tomcat\webapps\Study\jsp\dates下面，那javabean文件该放在c:\tomcat\webapps\Study\jsp\dates\WEB-INF\classes\dates下面。

Answer 6

package dates does not exist
dates.JspCalendar clock = null;在classpath中声明e:\WebRoot\WEB-INF\classes\,然后重启机器

Answer 7

javabean中的class文件必须放置到classpath目录中！

Answer 8

可以修改tomcat的config文件，也可以修改classpath来解决

Answer 9

简单的办法是不要让tomcat作为系统服务启动，而是使用命令行下的startup启动，或者用开始菜单中的快捷方式。复杂的方法修改注册表，在HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\Apache Tomcat 4.1\Parameters中，将Start Class和Stop Class都改为org.apache.catalina.startup.Bootstrap（原来为org.apache.catalina.startup.BootstrapService）。这样就可以作为系统服务启动而且工作正常了。