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Posted to users@tomcat.apache.org by Joe <jo...@sgweb.com.sg> on 2003/06/04 13:01:13 UTC
Question about JavaBeans

Hi all, I have a hard time trying to test out JavaBeans. It always gave
me this error message as listed at the end of this page.
 
For example, I have my Web Folder as:
 
/usr/local/tomcat/webapps/website
 
and inside this folder I have
 
/usr/local/tomcat/webapps/website/WEB-INF/classes/com/wrox/cars/
 
 
and currently I have placed my bean file into this folder and load the
following jsp page:
 
 
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<title>Using a Javabean</title>
<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1">
</head>
<body>
<h2>Using a java bean</h2>
 
<jsp:useBean id="myCar" class="com.wrox.cars.CarBean" />
<jsp.getProperty name="myCar" property="make" />
</body>
</html>
 
It gave me error.)
 
Also I have some doubts to clarify.
1)       Do I need to have the WEB-INF folder in every context
directory?
2)       Do I need to create a web.xml at this stage where I just making
use of this simple javabeans?
 
 
Can anyone tell me where should the proper place to store the bean
(.class) file??
 
 
Regards,
Joe
 
 
 
 
 
 

HTTP Status 500 - 

  _____  

type Exception report
message 
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
 
An error occurred at line: 9 in the jsp file: /test.jsp
 
Generated servlet error:
    [javac] Since fork is true, ignoring compiler setting.
    [javac] Compiling 1 source file
    [javac] Since fork is true, ignoring compiler setting.
    [javac]
/usr/local/jakarta-tomcat-4.1.24/work/Standalone/localhost/testWEB/test_
jsp.java:51: package com.wrox.cars does not exist
    [javac]  com.wrox.cars.CarBean myCar = new com.wrox.cars.CarBean(); 
    [javac]               ^
 
 
 
An error occurred at line: 9 in the jsp file: /test.jsp
 
Generated servlet error:
    [javac]
/usr/local/jakarta-tomcat-4.1.24/work/Standalone/localhost/testWEB/test_
jsp.java:51: package com.wrox.cars does not exist
    [javac]  com.wrox.cars.CarBean myCar = new com.wrox.cars.CarBean(); 
    [javac]                                                 ^
    [javac] 2 errors
 
 
 
        at
org.apache.jasper.compiler.DefaultErrorHandler.javacError(DefaultErrorHa
ndler.java:130)
        at
org.apache.jasper.compiler.ErrorDispatcher.javacError(ErrorDispatcher.ja
va:293)
        at
org.apache.jasper.compiler.Compiler.generateClass(Compiler.java:353)
        at
org.apache.jasper.compiler.Compiler.compile(Compiler.java:370)
        at
org.apache.jasper.JspCompilationContext.compile(JspCompilationContext.ja
va:473)
        at
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.ja
va:190)
        at
org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:295)
        at
org.apache.jasper.servlet.JspServlet.service(JspServlet.java:241)
        at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)
        at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(Applica
tionFilterChain.java:247)
        at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilt
erChain.java:193)
        at
org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValv
e.java:256)
        at
org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.i
nvokeNext(StandardPipeline.java:643)
        at
org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:4
80)
        at
org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:995)
        at
org.apache.catalina.core.StandardContextValve.invoke(StandardContextValv
e.java:191)
        at
org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.i
nvokeNext(StandardPipeline.java:643)
        at
org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:4
80)
        at
org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:995)
        at
org.apache.catalina.core.StandardContext.invoke(StandardContext.java:241
5)
        at
org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java
:180)
        at
org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.i
nvokeNext(StandardPipeline.java:643)
        at
org.apache.catalina.valves.ErrorDispatcherValve.invoke(ErrorDispatcherVa
lve.java:171)
        at
org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.i
nvokeNext(StandardPipeline.java:641)
        at
org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java
:172)
        at
org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.i
nvokeNext(StandardPipeline.java:641)
        at
org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:4
80)
        at
org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:995)
        at
org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.
java:174)
        at
org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.i
nvokeNext(StandardPipeline.java:643)
        at
org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:4
80)
        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:59
4)
        at
org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.processC
onnection(Http11Protocol.java:392)
        at
org.apache.tomcat.util.net.TcpWorkerThread.runIt(PoolTcpEndpoint.java:56
5)
        at
org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool
.java:619)
        at java.lang.Thread.run(Thread.java:536)