Hi this is my first post but so far this is pretty good site. I have a file called index.html with the following code: -
<!-- index.html -->
-
-
<html>
-
<head><title>Student Registration Front</title></head>
-
<body bgcolor="#ffffcc">
-
-
<h2 align="center"><font color="#800000">Student Registration Webapp 2007</font></h2>
-
-
<p> </p>
-
<p> </p>
-
-
<!-- <form action="http://localhost:8080/eventRegister/front.jsp" method="post"> -->
-
<form action="https://tomcat.cscs.wmin.ac.uk:9191/tomcat/w1009048/front.jsp" method="post">
-
<table align="center">
-
<tr><th>Student Registration: </th>
-
<td><input type="radio" name="choice" value="register" checked> </td>
-
<td> <font color="blue">you must register here first</font></td></tr>
-
-
<tr><td> </td><td> </td><td> </td></tr>
-
<tr><td> </td><td> </td><td> </td></tr>
-
-
<tr><th>Login for registered students: </th>
-
<td><input type="radio" name="choice" value="login"> </td>
-
<td><font color="red">this is not yet implemented<br />
-
and leads to a blank page</font></td></tr>
-
-
<tr><td> </td><td> </td><td> </td></tr>
-
-
<tr><td> </td>
-
<th><input type="submit" value="Submit"></th>
-
<td> </td></tr>
-
</table>
-
</form>
-
-
</body>
-
</html>
-
When they click on submit it goes to my front.jsp which has the following code(front.jsp is actually FrontController.java changed in web.xml): -
// FrontController.java
-
-
import java.io.* ;
-
import java.util.* ;
-
import javax.servlet.* ;
-
import javax.servlet.http.* ;
-
import beans.*;
-
-
/*
-
The front controller:
-
* creates a new 'session' object,
-
* creates an empty 'error message' String which it stores in 'session', then
-
* redirects the request to either:
-
- 'register' (the real JSP, register.jsp), or
-
- 'login' (not implemented)
-
*/
-
-
public class FrontController extends HttpServlet
-
{
-
public void doPost( HttpServletRequest request, HttpServletResponse response )
-
throws IOException, ServletException
-
{
-
String strChoice = request.getParameter( "choice" );
-
-
if ( strChoice.equals( "register" ) )
-
{
-
HttpSession session = request.getSession();
-
-
String strError = " "; /* now 'store' this String object - this is not a bean
-
but can be stored in 'session' in exactly the same way */
-
session.setAttribute( "error", strError );
-
-
RequestDispatcher dispatcher = getServletContext().getRequestDispatcher( "/register.jsp" );
-
dispatcher.forward( request, response );
-
}
-
else
-
{
-
RequestDispatcher dispatcher = getServletContext().getRequestDispatcher( "/login.jsp" );
-
dispatcher.forward( request, response );
-
}
-
}
-
}
-
After from frontcontroller, it should go into register.jsp but it does not becuase it i get this error message: -
-
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: /register.jsp(4,0) The value for the useBean class attribute bean.Counter is invalid.
-
org.apache.jasper.servlet.JspServletWrapper.handleJspException(JspServletWrapper.java:512)
-
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:377)
-
org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:314)
-
org.apache.jasper.servlet.JspServlet.service(JspServlet.java:264)
-
javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
-
FrontController.doPost(FrontController.java:34)
-
javax.servlet.http.HttpServlet.service(HttpServlet.java:709)
-
javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
-
-
-
root cause
-
-
org.apache.jasper.JasperException: /register.jsp(4,0) The value for the useBean class attribute bean.Counter is invalid.
-
org.apache.jasper.compiler.DefaultErrorHandler.jspError(DefaultErrorHandler.java:39)
-
org.apache.jasper.compiler.ErrorDispatcher.dispatch(ErrorDispatcher.java:405)
-
org.apache.jasper.compiler.ErrorDispatcher.jspError(ErrorDispatcher.java:146)
-
org.apache.jasper.compiler.Generator$GenerateVisitor.visit(Generator.java:1174)
-
org.apache.jasper.compiler.Node$UseBean.accept(Node.java:1116)
-
org.apache.jasper.compiler.Node$Nodes.visit(Node.java:2163)
-
org.apache.jasper.compiler.Node$Visitor.visitBody(Node.java:2213)
-
org.apache.jasper.compiler.Node$Visitor.visit(Node.java:2219)
-
org.apache.jasper.compiler.Node$Root.accept(Node.java:456)
-
org.apache.jasper.compiler.Node$Nodes.visit(Node.java:2163)
-
org.apache.jasper.compiler.Generator.generate(Generator.java:3320)
-
org.apache.jasper.compiler.Compiler.generateJava(Compiler.java:198)
-
org.apache.jasper.compiler.Compiler.compile(Compiler.java:295)
-
org.apache.jasper.compiler.Compiler.compile(Compiler.java:276)
-
org.apache.jasper.compiler.Compiler.compile(Compiler.java:264)
-
org.apache.jasper.JspCompilationContext.compile(JspCompilationContext.java:563)
-
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:305)
-
org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:314)
-
org.apache.jasper.servlet.JspServlet.service(JspServlet.java:264)
-
javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
-
FrontController.doPost(FrontController.java:34)
-
javax.servlet.http.HttpServlet.service(HttpServlet.java:709)
-
javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
-
The reason why it shows this error message is cos i add this following line of code in my register.jsp: <jsp:useBean id="counterid" class="bean.Counter" scope="application" />
The full code is here: -
<%-- register.jsp --%>
-
-
<%@ page language="java" contentType="text/html; charset-ISO-8859-1" %>
-
<jsp:useBean id="counterid" class="bean.Counter" scope="application" />
-
-
<html>
-
<head><title>Student Registration Front</title></head>
-
<body bgcolor="#ffffcc">
-
<h2 align="center"><font color="#800000">Student Registration Webapp 2007</font></h2>
-
-
<h3 align="center"><font color="red"><i>
-
<% String e = (String) session.getAttribute( "error" );
-
out.print( e ); %>
-
</i></font></h3>
-
-
-
-
<form action="registerStudent.jsp" method="post">
-
<table align="center">
-
<tr><th>Enter Surname: </th>
-
<td><input type="text" name="surname" size="20"></td></tr>
-
<tr><td> </td><td> </td><td> </td></tr>
-
<tr><th>Enter First Names: </th>
-
<td><input type="text" name="firstname" size="20"></td></tr>
-
<tr><td> </td><td> </td><td> </td></tr>
-
<tr><th>Enter 8 Registration Digits: </th>
-
<td><input type="text" name="reg" size="8"></td></tr>
-
<tr><td> </td><td> </td><td> </td></tr>
-
<tr><th>Enter Module: </th>
-
<td><select name="module">
-
<option value="3sfe513">3sfe513
-
<option value="3sfe7a6">3sfe7a6
-
</select>
-
</td></tr>
-
<tr><td> </td><td> </td><td> </td></tr>
-
<tr><th>Enter Password for Webapp Login: </th>
-
<td><input type="password" name="password" value="" size="8"></td></tr>
-
<tr><td> </td><td> </td><td> </td></tr>
-
<tr><th colspan="2"><input type="submit" value="Submit"></th></tr>
-
</table>
-
</form>
-
-
</body>
-
</html>
-
The register.jsp is used to allow member to enter their details and once they are submitted the data will be stored in mysql db. Now, can somone tell me why when i add the following code i get the following error message. If i dont add the following code, after i submit the first page it goes to my register.jsp. Please help if you cannn, please help..
2 2113
Hi this is my first post but so far this is pretty good site. I have a file called index.html with the following code: -
<!-- index.html -->
-
-
<html>
-
<head><title>Student Registration Front</title></head>
-
<body bgcolor="#ffffcc">
-
-
<h2 align="center"><font color="#800000">Student Registration Webapp 2007</font></h2>
-
-
<p> </p>
-
<p> </p>
-
-
<!-- <form action="http://localhost:8080/eventRegister/front.jsp" method="post"> -->
-
<form action="https://tomcat.cscs.wmin.ac.uk:9191/tomcat/w1009048/front.jsp" method="post">
-
<table align="center">
-
<tr><th>Student Registration: </th>
-
<td><input type="radio" name="choice" value="register" checked> </td>
-
<td> <font color="blue">you must register here first</font></td></tr>
-
-
<tr><td> </td><td> </td><td> </td></tr>
-
<tr><td> </td><td> </td><td> </td></tr>
-
-
<tr><th>Login for registered students: </th>
-
<td><input type="radio" name="choice" value="login"> </td>
-
<td><font color="red">this is not yet implemented<br />
-
and leads to a blank page</font></td></tr>
-
-
<tr><td> </td><td> </td><td> </td></tr>
-
-
<tr><td> </td>
-
<th><input type="submit" value="Submit"></th>
-
<td> </td></tr>
-
</table>
-
</form>
-
-
</body>
-
</html>
-
When they click on submit it goes to my front.jsp which has the following code(front.jsp is actually FrontController.java changed in web.xml): -
// FrontController.java
-
-
import java.io.* ;
-
import java.util.* ;
-
import javax.servlet.* ;
-
import javax.servlet.http.* ;
-
import beans.*;
-
-
/*
-
The front controller:
-
* creates a new 'session' object,
-
* creates an empty 'error message' String which it stores in 'session', then
-
* redirects the request to either:
-
- 'register' (the real JSP, register.jsp), or
-
- 'login' (not implemented)
-
*/
-
-
public class FrontController extends HttpServlet
-
{
-
public void doPost( HttpServletRequest request, HttpServletResponse response )
-
throws IOException, ServletException
-
{
-
String strChoice = request.getParameter( "choice" );
-
-
if ( strChoice.equals( "register" ) )
-
{
-
HttpSession session = request.getSession();
-
-
String strError = " "; /* now 'store' this String object - this is not a bean
-
but can be stored in 'session' in exactly the same way */
-
session.setAttribute( "error", strError );
-
-
RequestDispatcher dispatcher = getServletContext().getRequestDispatcher( "/register.jsp" );
-
dispatcher.forward( request, response );
-
}
-
else
-
{
-
RequestDispatcher dispatcher = getServletContext().getRequestDispatcher( "/login.jsp" );
-
dispatcher.forward( request, response );
-
}
-
}
-
}
-
After from frontcontroller, it should go into register.jsp but it does not becuase it i get this error message: -
-
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: /register.jsp(4,0) The value for the useBean class attribute bean.Counter is invalid.
-
org.apache.jasper.servlet.JspServletWrapper.handleJspException(JspServletWrapper.java:512)
-
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:377)
-
org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:314)
-
org.apache.jasper.servlet.JspServlet.service(JspServlet.java:264)
-
javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
-
FrontController.doPost(FrontController.java:34)
-
javax.servlet.http.HttpServlet.service(HttpServlet.java:709)
-
javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
-
-
-
root cause
-
-
org.apache.jasper.JasperException: /register.jsp(4,0) The value for the useBean class attribute bean.Counter is invalid.
-
org.apache.jasper.compiler.DefaultErrorHandler.jspError(DefaultErrorHandler.java:39)
-
org.apache.jasper.compiler.ErrorDispatcher.dispatch(ErrorDispatcher.java:405)
-
org.apache.jasper.compiler.ErrorDispatcher.jspError(ErrorDispatcher.java:146)
-
org.apache.jasper.compiler.Generator$GenerateVisitor.visit(Generator.java:1174)
-
org.apache.jasper.compiler.Node$UseBean.accept(Node.java:1116)
-
org.apache.jasper.compiler.Node$Nodes.visit(Node.java:2163)
-
org.apache.jasper.compiler.Node$Visitor.visitBody(Node.java:2213)
-
org.apache.jasper.compiler.Node$Visitor.visit(Node.java:2219)
-
org.apache.jasper.compiler.Node$Root.accept(Node.java:456)
-
org.apache.jasper.compiler.Node$Nodes.visit(Node.java:2163)
-
org.apache.jasper.compiler.Generator.generate(Generator.java:3320)
-
org.apache.jasper.compiler.Compiler.generateJava(Compiler.java:198)
-
org.apache.jasper.compiler.Compiler.compile(Compiler.java:295)
-
org.apache.jasper.compiler.Compiler.compile(Compiler.java:276)
-
org.apache.jasper.compiler.Compiler.compile(Compiler.java:264)
-
org.apache.jasper.JspCompilationContext.compile(JspCompilationContext.java:563)
-
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:305)
-
org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:314)
-
org.apache.jasper.servlet.JspServlet.service(JspServlet.java:264)
-
javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
-
FrontController.doPost(FrontController.java:34)
-
javax.servlet.http.HttpServlet.service(HttpServlet.java:709)
-
javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
-
The reason why it shows this error message is cos i add this following line of code in my register.jsp: <jsp:useBean id="counterid" class="bean.Counter" scope="application" />
The full code is here: -
<%-- register.jsp --%>
-
-
<%@ page language="java" contentType="text/html; charset-ISO-8859-1" %>
-
<jsp:useBean id="counterid" class="bean.Counter" scope="application" />
-
-
<html>
-
<head><title>Student Registration Front</title></head>
-
<body bgcolor="#ffffcc">
-
<h2 align="center"><font color="#800000">Student Registration Webapp 2007</font></h2>
-
-
<h3 align="center"><font color="red"><i>
-
<% String e = (String) session.getAttribute( "error" );
-
out.print( e ); %>
-
</i></font></h3>
-
-
-
-
<form action="registerStudent.jsp" method="post">
-
<table align="center">
-
<tr><th>Enter Surname: </th>
-
<td><input type="text" name="surname" size="20"></td></tr>
-
<tr><td> </td><td> </td><td> </td></tr>
-
<tr><th>Enter First Names: </th>
-
<td><input type="text" name="firstname" size="20"></td></tr>
-
<tr><td> </td><td> </td><td> </td></tr>
-
<tr><th>Enter 8 Registration Digits: </th>
-
<td><input type="text" name="reg" size="8"></td></tr>
-
<tr><td> </td><td> </td><td> </td></tr>
-
<tr><th>Enter Module: </th>
-
<td><select name="module">
-
<option value="3sfe513">3sfe513
-
<option value="3sfe7a6">3sfe7a6
-
</select>
-
</td></tr>
-
<tr><td> </td><td> </td><td> </td></tr>
-
<tr><th>Enter Password for Webapp Login: </th>
-
<td><input type="password" name="password" value="" size="8"></td></tr>
-
<tr><td> </td><td> </td><td> </td></tr>
-
<tr><th colspan="2"><input type="submit" value="Submit"></th></tr>
-
</table>
-
</form>
-
-
</body>
-
</html>
-
The register.jsp is used to allow member to enter their details and once they are submitted the data will be stored in mysql db. Now, can somone tell me why when i add the following code i get the following error message. If i dont add the following code, after i submit the first page it goes to my register.jsp. Please help if you cannn, please help..
It is bean.Counter or is it supposed to be beans.Counter or possibly just Counter?
It is bean.Counter or is it supposed to be beans.Counter or possibly just Counter?
Ahhhhh, it is meant to be beans.Counter. I looked at my folder name. I don't know about you but sometimes when programming in general you don't always see your own mistakes, therefore it is always good to ask somebody else as they might have a different view. Thanks for you'r help and sorry if i have caused any inconvience.
Sign in to post your reply or Sign up for a free account.
Similar topics
by: Jose Munoz |
last post by:
Hi all,
I want to share some data for all my applications (servlets and jsps).
For this i am using a JSP to set the variables with scope=application.
When i get this data from some JSP all is o.k,...
|
by: jenniferyiu |
last post by:
Hi. I downloaded the bean builder
and followed the steps told on
http://java.sun.com/products/javabeans/beanbuilder/1.0/docs/guide/tutorial.html
and the sample tools was created as the above...
|
by: Miles Davenport |
last post by:
I have the following code (please see base of email) which displays text
from a properties file ok.
I have changed the properties file so the contents are different, but cannot
get the new...
|
by: Borek |
last post by:
In my project I have to access in one business method of session bean
usually more then 10 CMP Beans. I would like to have some utils classes,
which could get me right instance of CMP or create...
|
by: Casper B |
last post by:
Since I am only able to pass simple beans around using my Web Service
framework, I wonder how to incorporate business logic around these beans.
My idea was to let my Beans be the base class and...
|
by: seller |
last post by:
coded this method in bean. The intent was for the bean to run
all the setters using the values in a vector argument. here's
the code:
public void loadSelf(Vector v) throws Exception {
String...
|
by: Alfredo |
last post by:
Hello everybody
I have a problem as a newbie in using beans and I hope someone out there can
help me with this.
I have a jsp-page that use BeanClass. Somewhere in the jsp code there is the...
|
by: jaisi |
last post by:
What iam exactly trying to do is..saving the resultset in a bean.....and calling the bean in a servlet and forwarding it to jsp by setting the bean in the request scope;
Now i have only one record...
|
by: hostel |
last post by:
HTML PAGE
<html>
<body>
<form action="second.jsp" method="get">
YOur name <input type=text name="name">
<input type=submit >
</form>
</body>
</html>
|
by: DolphinDB |
last post by:
Tired of spending countless mintues downsampling your data? Look no further!
In this article, you’ll learn how to efficiently downsample 6.48 billion high-frequency records to 61 million...
|
by: isladogs |
last post by:
The next Access Europe meeting will be on Wednesday 6 Mar 2024 starting at 18:00 UK time (6PM UTC) and finishing at about 19:15 (7.15PM).
In this month's session, we are pleased to welcome back...
|
by: PapaRatzi |
last post by:
Hello,
I am teaching myself MS Access forms design and Visual Basic. I've created a table to capture a list of Top 30 singles and forms to capture new entries. The final step is a form (unbound)...
|
by: CloudSolutions |
last post by:
Introduction:
For many beginners and individual users, requiring a credit card and email registration may pose a barrier when starting to use cloud servers. However, some cloud server providers now...
|
by: Defcon1945 |
last post by:
I'm trying to learn Python using Pycharm but import shutil doesn't work
|
by: Shællîpôpï 09 |
last post by:
If u are using a keypad phone, how do u turn on JavaScript, to access features like WhatsApp, Facebook, Instagram....
|
by: af34tf |
last post by:
Hi Guys, I have a domain whose name is BytesLimited.com, and I want to sell it. Does anyone know about platforms that allow me to list my domain in auction for free. Thank you
|
by: Faith0G |
last post by:
I am starting a new it consulting business and it's been a while since I setup a new website. Is wordpress still the best web based software for hosting a 5 page website? The webpages will be...
|
by: isladogs |
last post by:
The next Access Europe User Group meeting will be on Wednesday 3 Apr 2024 starting at 18:00 UK time (6PM UTC+1) and finishing by 19:30 (7.30PM).
In this session, we are pleased to welcome former...
| |