Jsp bean error
Hi,
I have been unable to use jsp beans.
Here are the code fragments
ControllerServlet.java
public class ControllerServlet extends HttpServlet
{
public void init(ServletConfig config) throws ServletException
{
.
.
// instantiate the DbBean
DatabaseBean databaseBean = new DatabaseBean();
// intialise the bean's fields
databaseBean.setDbUrl(config.getInitParameter("dbUrl"));
databaseBean.setDbUserName(config.getInitParameter("dbUserName"));
databaseBean.setDbPassword(config.getInitParameter("dbPassword"));
// put the bean in the servlet context
context.setAttribute("theBean",databaseBean);
}
..
..
}
I am now trying to use the databaseBean in process.jsp
<%@ page import="java.util.*" %>
<%@ page import="javax.servlet.*"%>
<%@ page import="javax.servlet.http.*"%>
...
...
This is error reported by Tomcat.
exception
org.apache.jasper.JasperException: Unable to compile class for JSP
An error occurred at line: 5 in the jsp file: /jsp/student/process.jsp
Generated servlet error:
[javac] Compiling 1 source file
C:\jakarta-tomcat-4.1.27
\work\Standalone\localhost\disa\jsp\student\process_jsp.java:47: cannot
resolve symbol
symbol : class DatabaseBean
location: class org.apache.jsp.process_jsp
DatabaseBean theBean = null;
^
An error occurred at line: 5 in the jsp file: /jsp/student/process.jsp
Generated servlet error:
C:\jakarta-tomcat-4.1.27
\work\Standalone\localhost\disa\jsp\student\process_jsp.java:49: cannot
resolve symbol
symbol : class DatabaseBean
location: class org.apache.jsp.process_jsp
theBean = (DatabaseBean) pageContext.getAttribute("theBean",
PageContext.APPLICATION_SCOPE);
^
An error occurred at line: 5 in the jsp file: /jsp/student/process.jsp
Generated servlet error:
C:\jakarta-tomcat-4.1.27
\work\Standalone\localhost\disa\jsp\student\process_jsp.java:52: cannot
resolve symbol
symbol : class DatabaseBean
location: class org.apache.jsp.process_jsp
theBean = (DatabaseBean) java.beans.Beans.instantiate
(this.getClass().getClassLoader(), "DatabaseBean");
^
3 errors
What's wrong? Please help.
Regards
Jay
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Fw: Re: Can't run servlets
Hi,
I did what was told bt Antony. But the problem persists. Looking
forward for help
Regards
X V Jay--- Begin Message ---
declarations. Like this
TestingServlet
TestingServlet
You have to declare the url mappings for servlets. Do this after all servlet
declarations. Like this
TestingServlet
TestingServlet
TestingServlet
/TestingServlet
Another way is using the invoker servlet provided by Tomcat. If using
invoker servlet no need of servlet mapping. But it have security bugs and is
disabled by default.
Antony Paul.
- Original Message -
From: "X V Jay" <[EMAIL PROTECTED]>
To: <[EMAIL PROTECTED]>
Sent: Friday, December 26, 2003 1:43 PM
Subject: Can't run servlets
> Hi,
> I have been unable to run servelets using my tomacat. I have put the
> class file in WEB-INF\classes. Please tell me where did I go wrong ?
> Thank you
> X V Jay
>
>
> Here is the source
> =
> import javax.servlet.*;
> import javax.servlet.http.*;
> import java.io.*;
> import java.util.*;
>
> public class TestingServlet extends HttpServlet {
>
> public void doGet(HttpServletRequest request,
> HttpServletResponse response)
> throws ServletException, IOException {
>
> PrintWriter out = response.getWriter();
> out.println("");
> out.println("");
> out.println("Servlet Testing");
> out.println("");
> out.println("");
> out.println("Welcome to the Servlet Testing Center");
> out.println("");
> out.println("");
> }
> }
>
>
> Here is the web.xml
> =
>
>
> PUBLIC "-//Sun Microsystems, Inc.//DTD Web Application 2.2//EN"
> "http://java.sun.com/j2ee/dtds/web-app_2_2.dtd";>
>
>
>
> TestingServlet
> TestingServlet
>
>
> ===
>
> Error message generated
> ==
>
> HTTP Status 404 - /myJspApps/servlet/TestingServlet
>
> --
> type Status report
>
> message /myJspApps/servlet/TestingServlet
>
> description The requested resource (/myJspApps/servlet/TestingServlet)
> is not available.
>
>
> ---
>
> Apache Tomcat/4.1.27
>
> =
>
> -
> To unsubscribe, e-mail: [EMAIL PROTECTED]
> For additional commands, e-mail: [EMAIL PROTECTED]
>
>
-
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--- End Message ---
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Can't run servlets
Hi,
I have been unable to run servelets using my tomacat. I have put the
class file in WEB-INF\classes. Please tell me where did I go wrong ?
Thank you
X V Jay
Here is the source
=
import javax.servlet.*;
import javax.servlet.http.*;
import java.io.*;
import java.util.*;
public class TestingServlet extends HttpServlet {
public void doGet(HttpServletRequest request,
HttpServletResponse response)
throws ServletException, IOException {
PrintWriter out = response.getWriter();
out.println("");
out.println("");
out.println("Servlet Testing");
out.println("");
out.println("");
out.println("Welcome to the Servlet Testing Center");
out.println("");
out.println("");
}
}
Here is the web.xml
=
http://java.sun.com/j2ee/dtds/web-app_2_2.dtd";>
TestingServlet
TestingServlet
===
Error message generated
==
HTTP Status 404 - /myJspApps/servlet/TestingServlet
--
type Status report
message /myJspApps/servlet/TestingServlet
description The requested resource (/myJspApps/servlet/TestingServlet)
is not available.
---
Apache Tomcat/4.1.27
=
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Re: Re: Can't run servlets
Thank you guys, Its now working with servlet mapping. Regards X.V.Jay > -BEGIN PGP SIGNED MESSAGE- > Hash: SHA1 > > Am Thursday 06 November 2003 09:48 schrieb Basavaraju P. Banakar: > > Servlet mapping is not madatory.. > > Well, not from the viewpoint of the DTD, but if you dont use the invoker [Jay > indicates by mentioning sepcifications], you'll need one (Otherwise > I'd really like to know why I have to use them with my Tomcat 4.1.24 > installation ;-) > > But if servlet mappings are still not enough, Jay has to check the errorlogs > of his server $TOMCAT_HOME/logs, there are a lot of possible other errors. > His servlet might have thrown an exception, some xml file might be malformed > (this would be my next guess). > > Mit freundlichem Gruß / With kind regards > Holger Klawitter > - -- > lists klawitter de > -BEGIN PGP SIGNATURE- > Version: GnuPG v1.2.2 (GNU/Linux) > > iD8DBQE/qhCr1Xdt0HKSwgYRAgkQAJ4ko9IJsGBFZbI/YlIREOxqigZOqACfRq2s > yGRgQKyOGSNfEMPFx2n8op4= > =AXDS > -END PGP SIGNATURE- > > > - > To unsubscribe, e-mail: [EMAIL PROTECTED] > For additional commands, e-mail: [EMAIL PROTECTED] - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: Re: Can't run servlets
Even after adding a servlet-mapping after my servlet declarations the problem is persisting. With regards X V Jay > -BEGIN PGP SIGNED MESSAGE- > Hash: SHA1 > > Am Thursday 06 November 2003 08:04 schrieb X V Jay: > > Hi, > > I am a newbie, I have been unable to run a servlet. These are the steps > > I took... > > > > 1. I wrote a small test servlet. > > 2. I created a 'test' directory under webapps. > > 3. Created WEB-INF in 'test' and put the testweb.class in classes dir. > > 4. Created a web.xml in WEB-INF > > > > > > > PUBLIC "-//Sun Microsystems, Inc.//DTD Web Application 2.3//EN" > > "http://java.sun.com/dtd/web-app_2_3.dtd";> > > > > > > abcd > > testweb > > > > > > You also need to add a servlet-mapping after your servlet declarations: > > > abcd > /servlet/abcd > > > Mit freundlichem Gruß / With kind regards > Holger Klawitter > - -- > lists klawitter de > -BEGIN PGP SIGNATURE- > Version: GnuPG v1.2.2 (GNU/Linux) > > iD8DBQE/qf5M1Xdt0HKSwgYRApeXAJwLtTsABkr4xJdoVA/MSGl6NQSrxACeLiyx > SJwz9YUQmb7G3fLzGJScS2E= > =eoEK > -END PGP SIGNATURE- > > > - > To unsubscribe, e-mail: [EMAIL PROTECTED] > For additional commands, e-mail: [EMAIL PROTECTED] - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Can't run servlets
Hi, I am a newbie, I have been unable to run a servlet. These are the steps I took... 1. I wrote a small test servlet. 2. I created a 'test' directory under webapps. 3. Created WEB-INF in 'test' and put the testweb.class in classes dir. 4. Created a web.xml in WEB-INF http://java.sun.com/dtd/web-app_2_3.dtd";> abcd testweb 5. Tried to run the servlet form http://localhost:8080/test/servlet/abcd Error displayed: The requested resource (/test/servlet/abcd) is not available. Is there anything which I have missed or done something wrong ? Please help me. Thank you OS: XP Professional Tomcat version: 4.1.27 - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
