Using the template tag library with parameters like jsp:param
With jsp:include, I can pass parameter values to the included page by using jsp:param. Can I get this functionality using the Struts template tag library? If so, can I use request.getParameter to retrieve values in the included page? _ Chat with friends online, try MSN Messenger: http://messenger.msn.com -- To unsubscribe, e-mail: mailto:[EMAIL PROTECTED] For additional commands, e-mail: mailto:[EMAIL PROTECTED]
Re: Using the template tag library with parameters like jsp:param
CB Thomas wrote: With jsp:include, I can pass parameter values to the included page by using jsp:param. Can I get this functionality using the Struts template tag library? Yes. Use the direct attribute, like this: template:put name='title' content='Templates' direct='true'/ Then in your template, you can access that value; for example, like this: htmlheadtitletemplate:get name='title'//title/head.../html Normally, the template:get tag will include content associated with the named parameter, but if you specify direct='true' with template:put, the template:get tag will just retrieve the value. See http://www.javaworld.com/javaworld/jw-09-2000/jw-0915-jspweb_p.html for more information about templates and the direct attribute. btw, if at all possible, I suggest that you use Tiles instead of templates. The former, which is an extension of the latter, has more functionality. If so, can I use request.getParameter to retrieve values in the included page? No, but you can use template:get as illustrated above. david _ Chat with friends online, try MSN Messenger: http://messenger.msn.com -- To unsubscribe, e-mail: mailto:[EMAIL PROTECTED] For additional commands, e-mail: mailto:[EMAIL PROTECTED] -- To unsubscribe, e-mail: mailto:[EMAIL PROTECTED] For additional commands, e-mail: mailto:[EMAIL PROTECTED]
Re: Using the template tag library with parameters like jsp:param
There is also Tiles for this sort of thing. David Geary wrote: CB Thomas wrote: With jsp:include, I can pass parameter values to the included page by using jsp:param. Can I get this functionality using the Struts template tag library? Yes. Use the direct attribute, like this: Tiles is a more feature-rich version of the template mechanism in Struts. It supports this as well. template:put name='title' content='Templates' direct='true'/ Then in your template, you can access that value; for example, like this: htmlheadtitletemplate:get name='title'//title/head.../html Normally, the template:get tag will include content associated with the named parameter, but if you specify direct='true' with template:put, the template:get tag will just retrieve the value. See http://www.javaworld.com/javaworld/jw-09-2000/jw-0915-jspweb_p.html for more information about templates and the direct attribute. btw, if at all possible, I suggest that you use Tiles instead of templates. The former, which is an extension of the latter, has more functionality. If so, can I use request.getParameter to retrieve values in the included page? No, but you can use template:get as illustrated above. david Regards, Eddie -- To unsubscribe, e-mail: mailto:[EMAIL PROTECTED] For additional commands, e-mail: mailto:[EMAIL PROTECTED]
Re: Using the template tag library with parameters like jsp:param
Hi All!
I've seen a number of posts looking for help/info on the this type of error message
(i.e., javax.servlet.ServletException: Exception creating bean of class
???.???.xxxForm: java.lang.ClassNotFoundException: ???.???.xxxForm) that occurs when
they attempt to test their struts application.
I have not seen a solution/ explanation, thus far, as to why this occurs.
Any help or insight as to why this happens, would be much appreciated. Once again,
I'm cutting and pasting a code example - that theoretically should work
out-of-the-box, and once again its not working (whaddya gonna do?)..
Here is the information/example code that I'm trying to get working when this error
occurs... (NOTE: I'm using jakarta-tomcat-4.0.4,j2sdk1.4.0_01,
jakarta-struts-1.0.2)
*** SubmitForm.java***
package hansen.playground;
import javax.servlet.http.HttpServletRequest;
import org.apache.struts.action.*;
public final class SubmitForm extends ActionForm {
/* Last Name */
private String lastName = Hansen; // default value
public String getLastName() {
return (this.lastName);
}
public void setLastName(String lastName) {
this.lastName = lastName;
}
/* Address */
private String address = null;
public String getAddress() {
return (this.address);
}
public void setAddress(String address) {
this.address = address;
}
/* Sex */
private String sex = null;
public String getSex() {
return (this.sex);
}
public void setSex(String sex) {
this.sex = sex;
}
/* Married status */
private String married = null;
public String getMarried() {
return (this.married);
}
public void setMarried(String married) {
this.married = married;
}
/* Age */
private String age = null;
public String getAge() {
return (this.age);
}
public void setAge(String age) {
this.age = age;
}
}
*** SubmitAction.java ***
package hansen.playground;
import javax.servlet.http.*;
import org.apache.struts.action.*;
public final class SubmitAction extends Action {
public ActionForward perform(ActionMapping mapping,
ActionForm form,
HttpServletRequest request,
HttpServletResponse response) {
SubmitForm f = (SubmitForm) form; // get the form bean
// and take the last name value
String lastName = f.getLastName();
// Translate the name to upper case
//and save it in the request object
request.setAttribute(lastName, lastName.toUpperCase());
// Forward control to the specified success target
return (mapping.findForward(success));
}
}
*** submit.jsp***
% page language=java %
% taglib uri=/WEB-INF/struts-bean.tld prefix=bean %
% taglib uri=/WEB-INF/struts-html.tld prefix=html %
% taglib uri=/WEB-INF/struts-logic.tld prefix=logic %
html
headtitleSubmit example/title/head
body
h3Example Submit Page/h3
html:errors/
html:form action=submit.do
Last Name: html:text property=lastName/br
Address: html:textarea property=address/br
Sex: html:radio property=sex value=M/Male
html:radio property=sex value=F/Femalebr
Married: html:checkbox property=married/br
Age: html:select property=age
html:option value=a0-19/html:option
html:option value=b20-49/html:option
html:option value=c50-/html:option
/html:selectbr
html:submit/
/html:form
/body
/html
*** struts-config.xml ***
?xml version=1.0 encoding=ISO-8859-1 ?
!DOCTYPE struts-config PUBLIC -//Apache Software Foundation//DTD Struts
Configuration 1.0//EN http://jakarta.apache.org/struts/dtds/struts-config_1_0.dtd;
struts-config
!-- == Form Bean Definitions === --
form-beans
form-bean name=submitForm type=hansen.playground.SubmitForm
/form-bean
/form-beans
!-- == Global Forward Definitions == --
global-forwards
/global-forwards
!-- == Action Mapping Definitions == --
action-mappings
action path=/submit
type=hansen.playground.SubmitAction
name=submitForm
input=/submit.jsp
scope=request
forward name=success path=/submit.jsp/
forward name=failure path=/submit.jsp/
/action
/action-mappings
/struts-config
*** ***
jw
*** error that I receive ***
javax.servlet.ServletException: Exception creating bean of class
hansen.playground.SubmitForm: java.lang.ClassNotFoundException:
hansen.playground.SubmitForm
at
org.apache.jasper.runtime.PageContextImpl.handlePageException(PageContextImpl.java:471)
at org.apache.jsp.submit$jsp._jspService(submit$jsp.java:485)
at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:107)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)
at
org.apache.jasper.servlet.JspServlet$JspServletWrapper.service(JspServlet.java:201)
at
Re: Using the template tag library with parameters like jsp:param
Hi All
Sorry for the bother - but, who knew - i.e., The issue was apparently
related to the struts version I was using (i.e.,
jakarta-struts-1.0.2)...
Apparently, the examples will work only with jakarta-struts-1.1-b2.At
least in my current environment (winXP/j2sdk1.4.0_01/jakarta-tomcat-4.0.4)
Thanks!
jw
- Original Message -
From: jw [EMAIL PROTECTED]
To: Struts Users Mailing List [EMAIL PROTECTED]
Sent: Saturday, August 31, 2002 1:28 PM
Subject: Re: Using the template tag library with parameters like jsp:param
Hi All!
I've seen a number of posts looking for help/info on the this type of error
message (i.e., javax.servlet.ServletException: Exception creating bean of
class ???.???.xxxForm: java.lang.ClassNotFoundException: ???.???.xxxForm)
that occurs when they attempt to test their struts application.
I have not seen a solution/ explanation, thus far, as to why this occurs.
Any help or insight as to why this happens, would be much appreciated.
Once again, I'm cutting and pasting a code example - that theoretically
should work out-of-the-box, and once again its not working (whaddya gonna
do?)..
Here is the information/example code that I'm trying to get working when
this error occurs... (NOTE: I'm using jakarta-tomcat-4.0.4,
j2sdk1.4.0_01,jakarta-struts-1.0.2)
*** SubmitForm.java***
package hansen.playground;
import javax.servlet.http.HttpServletRequest;
import org.apache.struts.action.*;
public final class SubmitForm extends ActionForm {
/* Last Name */
private String lastName = Hansen; // default value
public String getLastName() {
return (this.lastName);
}
public void setLastName(String lastName) {
this.lastName = lastName;
}
/* Address */
private String address = null;
public String getAddress() {
return (this.address);
}
public void setAddress(String address) {
this.address = address;
}
/* Sex */
private String sex = null;
public String getSex() {
return (this.sex);
}
public void setSex(String sex) {
this.sex = sex;
}
/* Married status */
private String married = null;
public String getMarried() {
return (this.married);
}
public void setMarried(String married) {
this.married = married;
}
/* Age */
private String age = null;
public String getAge() {
return (this.age);
}
public void setAge(String age) {
this.age = age;
}
}
*** SubmitAction.java ***
package hansen.playground;
import javax.servlet.http.*;
import org.apache.struts.action.*;
public final class SubmitAction extends Action {
public ActionForward perform(ActionMapping mapping,
ActionForm form,
HttpServletRequest request,
HttpServletResponse response) {
SubmitForm f = (SubmitForm) form; // get the form bean
// and take the last name value
String lastName = f.getLastName();
// Translate the name to upper case
//and save it in the request object
request.setAttribute(lastName, lastName.toUpperCase());
// Forward control to the specified success target
return (mapping.findForward(success));
}
}
*** submit.jsp***
%@ page language=java %
%@ taglib uri=/WEB-INF/struts-bean.tld prefix=bean %
%@ taglib uri=/WEB-INF/struts-html.tld prefix=html %
%@ taglib uri=/WEB-INF/struts-logic.tld prefix=logic %
html
headtitleSubmit example/title/head
body
h3Example Submit Page/h3
html:errors/
html:form action=submit.do
Last Name: html:text property=lastName/br
Address: html:textarea property=address/br
Sex: html:radio property=sex value=M/Male
html:radio property=sex value=F/Femalebr
Married: html:checkbox property=married/br
Age: html:select property=age
html:option value=a0-19/html:option
html:option value=b20-49/html:option
html:option value=c50-/html:option
/html:selectbr
html:submit/
/html:form
/body
/html
*** struts-config.xml ***
?xml version=1.0 encoding=ISO-8859-1 ?
!DOCTYPE struts-config PUBLIC -//Apache Software Foundation//DTD Struts
Configuration 1.0//EN
http://jakarta.apache.org/struts/dtds/struts-config_1_0.dtd;
struts-config
!-- == Form Bean Definitions
=== --
form-beans
form-bean name=submitForm type=hansen.playground.SubmitForm
/form-bean
/form-beans
!-- == Global Forward Definitions
== --
global-forwards
/global-forwards
!-- == Action Mapping Definitions
== --
action-mappings
action path=/submit
type=hansen.playground.SubmitAction
name=submitForm
input=/submit.jsp
scope=request
forward name=success path=/submit.jsp/
forward name=failure path=/submit.jsp/
/action
/action-mappings
/struts-config
*** ***
jw
*** error that I receive ***
javax.servlet.ServletException: Exception creating bean of class
hansen.playground.SubmitForm
