RE: how do I reference a bean that's inside my jsp page?
I cannot imagine how that would work in any app server. A Java bean is it's own class that can be used by ... It works just fine in other JSP engines, e.g., GNUJSP. The example was just a self-contained example for introducing bean tags, and the specific use is limited to form handling where the bean is intended to have a 1:1 relationship with the HTML form. The documentation mentions that it is a limited application (you *must* use page scope because the bean cannot be used outside of that page, and any other scope would lead to classloader problems). --- Noel -- To unsubscribe, e-mail: mailto:[EMAIL PROTECTED] For additional commands, e-mail: mailto:[EMAIL PROTECTED]
RE: how do I reference a bean that's inside my jsp page?
Jeff, Thanks for reminding me. This is not the cleanest thing to do from a purist's perspective (which I mention in the tutorial), but it was a simple demonstration, and it works for form generation tools. More importantly, there is nothing in the JSP Specification that prohibits this behavior. Tomcat's current lack of support for it therefore appears to be a defect. Either they should fix it, or Sun should amend the specification. Tomcat is the Reference Implementation, so one or the other needs to be fixed. I keep forgetting to stick this in bugzilla. --- Noel -- To unsubscribe, e-mail: mailto:[EMAIL PROTECTED] For additional commands, e-mail: mailto:[EMAIL PROTECTED]
Re: how do I reference a bean that's inside my jsp page?
--- Jeff Ousley [EMAIL PROTECTED] wrote:
Hello,
I cannot seem to get this example below to work
under
tomcat (I'm using version 4.1.18). I get an error
indicating that the class localBean cannot be found
such as:
java.lang.ClassNotFoundException: localBean
at
org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1428)
at
org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1274)
I tried doing an import (which is now commented out)
to no avail. Can I not have a bean in my jsp page?
If
I can, how do I reference it or what do I set so
that
it can be found?
thanks!
example page
HTML
%-- %@ page import=localBean % --%
%!
// this is a local helper bean for processing the
HTML form
static public class localBean
{
private String value;
public String getValue() { return value;}
public void setValue(String s) { value = s; }
}
%
jsp:useBean id=localBean scope=page
class=localBean
Where is the bean class file? Is it in
$CATALINA_HOME/webapps/yourApp/WEB-INF/classes ?
Is the bean in a package? If so, it needs to be in a
corresponding directory structure under classes. Is
you bean in fact named localBean.[java|class] ?
Convention says Java classes should be named
LocalBean.java.
{{SNIP}}
=
[EMAIL PROTECTED]
http://www.charleshbaker.com/~chb/
If you cannot in the long run tell everyone what you have been doing,
your doing was worthless. -- Edwim Schrodinger
__
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RE: how do I reference a bean that's inside my jsp page?
Jeff,
I'm not exactly sure what you mean by a bean that is inside your JSP (then
again I'm a newbie...), but I am assuming you mean have access to a bean
from within your JSP.
The way I use my bean, is I created the file MyBean.java with all the proper
methods and compiled it. These files (the .java and .class) are in the
WEB-INF/classes/com/complusdata/beans directory of my webapp. Now I've
noticed that I have had to restart Tomcat every time I make changes to the
bean and recompile, but someone on the list may have a better solution to
that...
In MyBean.java I declare
package com.complusdata.beans;
To reference the bean from myJSP.jsp that is in my webapp directory, I have
the following:
%@page import=com.complusdata.beans%
jsp:useBean id=myBean class=com.complusdata.beans.MyBean
scope=request
jsp:setProperty name=myBean property=*/
/jsp:useBean
As I've learned from the list, this will tell the JSP to use the bean
myBean. It will first look for an existing instance of the bean. If one
does not exist it will execute the body of the jsp:useBean tag. If an
instance does exist it will not execute the body. Then in either case, you
will have access to the properties of that bean.
When I want to access a specific value from the bean within my JSP page, I
use myBean.getPropertyName() - where you substitute PropertyName for the
name of your property. I believe you can also use the tag jsp:getProperty
name=myBean property=propertyName/
I also have my webapps directory in my Classpath, but not sure if that is
required...
On a side note, anyone feel free to correct me if I am wrong about something
;) but Jeff, this is how mine is set up.
HTH
Denise
-Original Message-
From: Jeff Ousley [mailto:[EMAIL PROTECTED]]
Sent: Monday, January 13, 2003 5:38 PM
To: [EMAIL PROTECTED]
Subject: how do I reference a bean that's inside my jsp page?
Hello,
I cannot seem to get this example below to work under
tomcat (I'm using version 4.1.18). I get an error
indicating that the class localBean cannot be found
such as:
java.lang.ClassNotFoundException: localBean
at
org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.jav
a:1428)
at
org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.jav
a:1274)
I tried doing an import (which is now commented out)
to no avail. Can I not have a bean in my jsp page? If
I can, how do I reference it or what do I set so that
it can be found?
thanks!
example page
HTML
%-- %@ page import=localBean % --%
%!
// this is a local helper bean for processing the
HTML form
static public class localBean
{
private String value;
public String getValue() { return value;}
public void setValue(String s) { value = s; }
}
%
jsp:useBean id=localBean scope=page
class=localBean
%-- Every time we create the bean, initialize the
string --%
jsp:setProperty name=localBean property=value value=World /
/jsp:useBean
%-- Whatever HTTP parameters we have,
try to set an analogous bean property --% jsp:setProperty
name=localBean property=* /
HEADTITLEHelloWorld w/ JavaBean/TITLE/HEAD
BODY
CENTER
PH1Hello
jsp:getProperty name='localBean'
property='value'//H1/P
FORM method=post
Enter a name to be greeted:
INPUT TYPE=text SIZE=32 NAME=value VALUE=jsp:getProperty
name='localBean' property='value'/ BR INPUT TYPE=submit
VALUE=Submit /FORM /CENTER /BODY /HTML
__
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RE: how do I reference a bean that's inside my jsp page?
Jeff,
My apologies... I just re-read your post, and it looks like you actually
want to define your bean within your JSP page... I do not think this is
possible. I would imagine not because from what I understand the bean is an
actual class file, which would not be created in your scenario. Then again,
I could be wrong... However, the scenario I gave works.
HTH
Denise
-Original Message-
From: Denise Mangano [mailto:[EMAIL PROTECTED]]
Sent: Monday, January 13, 2003 6:54 PM
To: 'Tomcat Users List'
Subject: RE: how do I reference a bean that's inside my jsp page?
Jeff,
I'm not exactly sure what you mean by a bean that is inside your JSP (then
again I'm a newbie...), but I am assuming you mean have access to a bean
from within your JSP.
The way I use my bean, is I created the file MyBean.java with all the proper
methods and compiled it. These files (the .java and .class) are in the
WEB-INF/classes/com/complusdata/beans directory of my webapp. Now I've
noticed that I have had to restart Tomcat every time I make changes to the
bean and recompile, but someone on the list may have a better solution to
that...
In MyBean.java I declare
package com.complusdata.beans;
To reference the bean from myJSP.jsp that is in my webapp directory, I have
the following:
%@page import=com.complusdata.beans%
jsp:useBean id=myBean class=com.complusdata.beans.MyBean
scope=request
jsp:setProperty name=myBean property=*/
/jsp:useBean
As I've learned from the list, this will tell the JSP to use the bean
myBean. It will first look for an existing instance of the bean. If one
does not exist it will execute the body of the jsp:useBean tag. If an
instance does exist it will not execute the body. Then in either case, you
will have access to the properties of that bean.
When I want to access a specific value from the bean within my JSP page, I
use myBean.getPropertyName() - where you substitute PropertyName for the
name of your property. I believe you can also use the tag jsp:getProperty
name=myBean property=propertyName/
I also have my webapps directory in my Classpath, but not sure if that is
required...
On a side note, anyone feel free to correct me if I am wrong about something
;) but Jeff, this is how mine is set up.
HTH
Denise
-Original Message-
From: Jeff Ousley [mailto:[EMAIL PROTECTED]]
Sent: Monday, January 13, 2003 5:38 PM
To: [EMAIL PROTECTED]
Subject: how do I reference a bean that's inside my jsp page?
Hello,
I cannot seem to get this example below to work under
tomcat (I'm using version 4.1.18). I get an error
indicating that the class localBean cannot be found
such as:
java.lang.ClassNotFoundException: localBean
at
org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.jav
a:1428)
at
org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.jav
a:1274)
I tried doing an import (which is now commented out)
to no avail. Can I not have a bean in my jsp page? If
I can, how do I reference it or what do I set so that
it can be found?
thanks!
example page
HTML
%-- %@ page import=localBean % --%
%!
// this is a local helper bean for processing the
HTML form
static public class localBean
{
private String value;
public String getValue() { return value;}
public void setValue(String s) { value = s; }
}
%
jsp:useBean id=localBean scope=page
class=localBean
%-- Every time we create the bean, initialize the
string --%
jsp:setProperty name=localBean property=value value=World /
/jsp:useBean
%-- Whatever HTTP parameters we have,
try to set an analogous bean property --% jsp:setProperty
name=localBean property=* /
HEADTITLEHelloWorld w/ JavaBean/TITLE/HEAD
BODY
CENTER
PH1Hello
jsp:getProperty name='localBean'
property='value'//H1/P
FORM method=post
Enter a name to be greeted:
INPUT TYPE=text SIZE=32 NAME=value VALUE=jsp:getProperty
name='localBean' property='value'/ BR INPUT TYPE=submit
VALUE=Submit /FORM /CENTER /BODY /HTML
__
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Re: how do I reference a bean that's inside my jsp page?
Charles,
The bean is actually on the same page in a declaration
block. If I pull the bean out and put it into it's own
class file, I can get it to work. I was just trying to
get the example from the tutorial to work. It seems to
work on the tutorial site, but I'm not sure what
application server they are using.
-jeff
--- Charles Baker [EMAIL PROTECTED] wrote:
--- Jeff Ousley [EMAIL PROTECTED] wrote:
Hello,
I cannot seem to get this example below to work
under
tomcat (I'm using version 4.1.18). I get an error
indicating that the class localBean cannot be
found
such as:
java.lang.ClassNotFoundException: localBean
at
org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1428)
at
org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1274)
I tried doing an import (which is now commented
out)
to no avail. Can I not have a bean in my jsp page?
If
I can, how do I reference it or what do I set so
that
it can be found?
thanks!
example page
HTML
%-- %@ page import=localBean % --%
%!
// this is a local helper bean for processing
the
HTML form
static public class localBean
{
private String value;
public String getValue() { return
value;}
public void setValue(String s) { value = s; }
}
%
jsp:useBean id=localBean scope=page
class=localBean
Where is the bean class file? Is it in
$CATALINA_HOME/webapps/yourApp/WEB-INF/classes ?
Is the bean in a package? If so, it needs to be in a
corresponding directory structure under classes. Is
you bean in fact named localBean.[java|class] ?
Convention says Java classes should be named
LocalBean.java.
{{SNIP}}
=
[EMAIL PROTECTED]
http://www.charleshbaker.com/~chb/
If you cannot in the long run tell everyone what you
have been doing,
your doing was worthless. -- Edwim Schrodinger
__
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Yahoo! Mail Plus - Powerful. Affordable. Sign up
now.
http://mailplus.yahoo.com
--
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mailto:[EMAIL PROTECTED]
For additional commands, e-mail:
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RE: how do I reference a bean that's inside my jsp page?
Denise,
Thanks for the response. I got it to work by pulling
the bean out into it's own class file. I'm just trying
to understand this example from a tutorial I'm going
through. It works on their site. However, I'm not sure
which app server they are using.
-jeff
--- Denise Mangano [EMAIL PROTECTED] wrote:
Jeff,
My apologies... I just re-read your post, and it
looks like you actually
want to define your bean within your JSP page... I
do not think this is
possible. I would imagine not because from what I
understand the bean is an
actual class file, which would not be created in
your scenario. Then again,
I could be wrong... However, the scenario I gave
works.
HTH
Denise
-Original Message-
From: Denise Mangano
[mailto:[EMAIL PROTECTED]]
Sent: Monday, January 13, 2003 6:54 PM
To: 'Tomcat Users List'
Subject: RE: how do I reference a bean that's inside
my jsp page?
Jeff,
I'm not exactly sure what you mean by a bean that is
inside your JSP (then
again I'm a newbie...), but I am assuming you mean
have access to a bean
from within your JSP.
The way I use my bean, is I created the file
MyBean.java with all the proper
methods and compiled it. These files (the .java and
.class) are in the
WEB-INF/classes/com/complusdata/beans directory of
my webapp. Now I've
noticed that I have had to restart Tomcat every time
I make changes to the
bean and recompile, but someone on the list may have
a better solution to
that...
In MyBean.java I declare
package com.complusdata.beans;
To reference the bean from myJSP.jsp that is in my
webapp directory, I have
the following:
%@page import=com.complusdata.beans%
jsp:useBean id=myBean
class=com.complusdata.beans.MyBean
scope=request
jsp:setProperty name=myBean property=*/
/jsp:useBean
As I've learned from the list, this will tell the
JSP to use the bean
myBean. It will first look for an existing
instance of the bean. If one
does not exist it will execute the body of the
jsp:useBean tag. If an
instance does exist it will not execute the body.
Then in either case, you
will have access to the properties of that bean.
When I want to access a specific value from the bean
within my JSP page, I
use myBean.getPropertyName() - where you substitute
PropertyName for the
name of your property. I believe you can also use
the tag jsp:getProperty
name=myBean property=propertyName/
I also have my webapps directory in my Classpath,
but not sure if that is
required...
On a side note, anyone feel free to correct me if I
am wrong about something
;) but Jeff, this is how mine is set up.
HTH
Denise
-Original Message-
From: Jeff Ousley [mailto:[EMAIL PROTECTED]]
Sent: Monday, January 13, 2003 5:38 PM
To: [EMAIL PROTECTED]
Subject: how do I reference a bean that's inside my
jsp page?
Hello,
I cannot seem to get this example below to work
under
tomcat (I'm using version 4.1.18). I get an error
indicating that the class localBean cannot be found
such as:
java.lang.ClassNotFoundException: localBean
at
org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.jav
a:1428)
at
org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.jav
a:1274)
I tried doing an import (which is now commented out)
to no avail. Can I not have a bean in my jsp page?
If
I can, how do I reference it or what do I set so
that
it can be found?
thanks!
example page
HTML
%-- %@ page import=localBean % --%
%!
// this is a local helper bean for processing the
HTML form
static public class localBean
{
private String value;
public String getValue() { return value;}
public void setValue(String s) { value = s; }
}
%
jsp:useBean id=localBean scope=page
class=localBean
%-- Every time we create the bean, initialize the
string --%
jsp:setProperty name=localBean property=value
value=World /
/jsp:useBean
%-- Whatever HTTP parameters we have,
try to set an analogous bean property --%
jsp:setProperty
name=localBean property=* /
HEADTITLEHelloWorld w/ JavaBean/TITLE/HEAD
BODY
CENTER
PH1Hello
jsp:getProperty name='localBean'
property='value'//H1/P
FORM method=post
Enter a name to be greeted:
INPUT TYPE=text SIZE=32 NAME=value
VALUE=jsp:getProperty
name='localBean' property='value'/ BR INPUT
TYPE=submit
VALUE=Submit /FORM /CENTER /BODY /HTML
__
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RE: how do I reference a bean that's inside my jsp page?
Jeff,
Is there a website for that tutorial? I'd be curious myself to see if such
a scenario is possible...
Thanks :)
Denise
-Original Message-
From: Jeff Ousley [mailto:[EMAIL PROTECTED]]
Sent: Monday, January 13, 2003 7:07 PM
To: Tomcat Users List
Subject: RE: how do I reference a bean that's inside my jsp page?
Denise,
Thanks for the response. I got it to work by pulling
the bean out into it's own class file. I'm just trying
to understand this example from a tutorial I'm going
through. It works on their site. However, I'm not sure
which app server they are using.
-jeff
--- Denise Mangano [EMAIL PROTECTED] wrote:
Jeff,
My apologies... I just re-read your post, and it
looks like you actually
want to define your bean within your JSP page... I
do not think this is
possible. I would imagine not because from what I
understand the bean is an
actual class file, which would not be created in
your scenario. Then again,
I could be wrong... However, the scenario I gave
works.
HTH
Denise
-Original Message-
From: Denise Mangano
[mailto:[EMAIL PROTECTED]]
Sent: Monday, January 13, 2003 6:54 PM
To: 'Tomcat Users List'
Subject: RE: how do I reference a bean that's inside
my jsp page?
Jeff,
I'm not exactly sure what you mean by a bean that is
inside your JSP (then
again I'm a newbie...), but I am assuming you mean
have access to a bean
from within your JSP.
The way I use my bean, is I created the file
MyBean.java with all the proper
methods and compiled it. These files (the .java and
.class) are in the
WEB-INF/classes/com/complusdata/beans directory of
my webapp. Now I've
noticed that I have had to restart Tomcat every time
I make changes to the
bean and recompile, but someone on the list may have
a better solution to
that...
In MyBean.java I declare
package com.complusdata.beans;
To reference the bean from myJSP.jsp that is in my
webapp directory, I have
the following:
%@page import=com.complusdata.beans%
jsp:useBean id=myBean
class=com.complusdata.beans.MyBean
scope=request
jsp:setProperty name=myBean property=*/ /jsp:useBean
As I've learned from the list, this will tell the
JSP to use the bean
myBean. It will first look for an existing
instance of the bean. If one
does not exist it will execute the body of the
jsp:useBean tag. If an
instance does exist it will not execute the body.
Then in either case, you
will have access to the properties of that bean.
When I want to access a specific value from the bean
within my JSP page, I
use myBean.getPropertyName() - where you substitute PropertyName for
the name of your property. I believe you can also use
the tag jsp:getProperty
name=myBean property=propertyName/
I also have my webapps directory in my Classpath,
but not sure if that is
required...
On a side note, anyone feel free to correct me if I
am wrong about something
;) but Jeff, this is how mine is set up.
HTH
Denise
-Original Message-
From: Jeff Ousley [mailto:[EMAIL PROTECTED]]
Sent: Monday, January 13, 2003 5:38 PM
To: [EMAIL PROTECTED]
Subject: how do I reference a bean that's inside my
jsp page?
Hello,
I cannot seem to get this example below to work
under
tomcat (I'm using version 4.1.18). I get an error
indicating that the class localBean cannot be found
such as:
java.lang.ClassNotFoundException: localBean
at
org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.jav
a:1428)
at
org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.jav
a:1274)
I tried doing an import (which is now commented out)
to no avail. Can I not have a bean in my jsp page?
If
I can, how do I reference it or what do I set so
that
it can be found?
thanks!
example page
HTML
%-- %@ page import=localBean % --%
%!
// this is a local helper bean for processing the
HTML form
static public class localBean
{
private String value;
public String getValue() { return value;}
public void setValue(String s) { value = s; }
}
%
jsp:useBean id=localBean scope=page
class=localBean
%-- Every time we create the bean, initialize the
string --%
jsp:setProperty name=localBean property=value value=World /
/jsp:useBean
%-- Whatever HTTP parameters we have,
try to set an analogous bean property --% jsp:setProperty
name=localBean property=* /
HEADTITLEHelloWorld w/ JavaBean/TITLE/HEAD
BODY
CENTER
PH1Hello
jsp:getProperty name='localBean'
property='value'//H1/P
FORM method=post
Enter a name to be greeted:
INPUT TYPE=text SIZE=32 NAME=value VALUE=jsp:getProperty
name='localBean' property='value'/ BR INPUT
TYPE=submit
VALUE=Submit /FORM /CENTER /BODY /HTML
__
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Re: how do I reference a bean that's inside my jsp page?
--- Jeff Ousley [EMAIL PROTECTED] wrote:
Charles,
The bean is actually on the same page in a
declaration
block. If I pull the bean out and put it into it's
own
class file, I can get it to work. I was just trying
to
get the example from the tutorial to work. It seems
to
work on the tutorial site, but I'm not sure what
application server they are using.
-jeff
{{SNIP}}
I cannot imagine how that would work in any app
server. A Java bean is it's own class that can be used
by a jsp, a servlet, or even a Java gui app. Strange.
What tutorial are you looking at?
=
[EMAIL PROTECTED]
http://www.charleshbaker.com/~chb/
If you cannot in the long run tell everyone what you have been doing,
your doing was worthless. -- Edwim Schrodinger
__
Do you Yahoo!?
Yahoo! Mail Plus - Powerful. Affordable. Sign up now.
http://mailplus.yahoo.com
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For additional commands, e-mail: mailto:[EMAIL PROTECTED]
RE: how do I reference a bean that's inside my jsp page?
Denise Charles,
I found the tutorial at:
http://www.ibm.com/developerworks
When you get there, on the left, click on Java
Technology, then click on Education. In the list
that comes up, you'll see a tutorial titled:
Introduction to JavaServer Pages technology
That's the one I was going through. There are a lot of
other neat tutorials there as well. Enjoy!
-jeff
--- Denise Mangano [EMAIL PROTECTED] wrote:
Jeff,
Is there a website for that tutorial? I'd be
curious myself to see if such
a scenario is possible...
Thanks :)
Denise
-Original Message-
From: Jeff Ousley [mailto:[EMAIL PROTECTED]]
Sent: Monday, January 13, 2003 7:07 PM
To: Tomcat Users List
Subject: RE: how do I reference a bean that's inside
my jsp page?
Denise,
Thanks for the response. I got it to work by pulling
the bean out into it's own class file. I'm just
trying
to understand this example from a tutorial I'm going
through. It works on their site. However, I'm not
sure
which app server they are using.
-jeff
--- Denise Mangano [EMAIL PROTECTED] wrote:
Jeff,
My apologies... I just re-read your post, and it
looks like you actually
want to define your bean within your JSP page... I
do not think this is
possible. I would imagine not because from what I
understand the bean is an
actual class file, which would not be created in
your scenario. Then again,
I could be wrong... However, the scenario I gave
works.
HTH
Denise
-Original Message-
From: Denise Mangano
[mailto:[EMAIL PROTECTED]]
Sent: Monday, January 13, 2003 6:54 PM
To: 'Tomcat Users List'
Subject: RE: how do I reference a bean that's
inside
my jsp page?
Jeff,
I'm not exactly sure what you mean by a bean that
is
inside your JSP (then
again I'm a newbie...), but I am assuming you mean
have access to a bean
from within your JSP.
The way I use my bean, is I created the file
MyBean.java with all the proper
methods and compiled it. These files (the .java
and
.class) are in the
WEB-INF/classes/com/complusdata/beans directory of
my webapp. Now I've
noticed that I have had to restart Tomcat every
time
I make changes to the
bean and recompile, but someone on the list may
have
a better solution to
that...
In MyBean.java I declare
package com.complusdata.beans;
To reference the bean from myJSP.jsp that is in my
webapp directory, I have
the following:
%@page import=com.complusdata.beans%
jsp:useBean id=myBean
class=com.complusdata.beans.MyBean
scope=request
jsp:setProperty name=myBean property=*/
/jsp:useBean
As I've learned from the list, this will tell the
JSP to use the bean
myBean. It will first look for an existing
instance of the bean. If one
does not exist it will execute the body of the
jsp:useBean tag. If an
instance does exist it will not execute the body.
Then in either case, you
will have access to the properties of that bean.
When I want to access a specific value from the
bean
within my JSP page, I
use myBean.getPropertyName() - where you
substitute PropertyName for
the name of your property. I believe you can also
use
the tag jsp:getProperty
name=myBean property=propertyName/
I also have my webapps directory in my Classpath,
but not sure if that is
required...
On a side note, anyone feel free to correct me if
I
am wrong about something
;) but Jeff, this is how mine is set up.
HTH
Denise
-Original Message-
From: Jeff Ousley [mailto:[EMAIL PROTECTED]]
Sent: Monday, January 13, 2003 5:38 PM
To: [EMAIL PROTECTED]
Subject: how do I reference a bean that's inside
my
jsp page?
Hello,
I cannot seem to get this example below to work
under
tomcat (I'm using version 4.1.18). I get an error
indicating that the class localBean cannot be
found
such as:
java.lang.ClassNotFoundException: localBean
at
org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.jav
a:1428)
at
org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.jav
a:1274)
I tried doing an import (which is now commented
out)
to no avail. Can I not have a bean in my jsp page?
If
I can, how do I reference it or what do I set so
that
it can be found?
thanks!
example page
HTML
%-- %@ page import=localBean % --%
%!
// this is a local helper bean for processing
the
HTML form
static public class localBean
{
private String value;
public String getValue() { return
value;}
public void setValue(String s) { value = s; }
}
%
jsp:useBean id=localBean scope=page
class=localBean
%-- Every time we create the bean, initialize the
string --%
jsp:setProperty name=localBean property=value
value=World /
/jsp:useBean
%-- Whatever HTTP parameters we
