URL encoded request parameters
hi How can I read request parameters with URL encoding from a FormBean? Jan Fredrik ___ Jan Fredrik Øveraasen | Senior Systems Developer ___ Cell Network ASA | Pb. 5313, Sørkedalsv. 10A, N-0304 Oslo, Norway ___ Tel: +47 23196600/35 | Fax: +47 23196601 | Mob: +47 93 49 99 88 ___ http://www.cellnetwork.com/ | mailto:[EMAIL PROTECTED]
RE: Solution: bean attributes not displaying (please comment)
If there is an ActionForm bean stored either on the request or on the
session, remove it. The getAttribute method will return the name of the
attribute in the session or in the request where the bean is stored under.
The getScope says either session or request.
This fragmnent is to be executed to remove an obsolete ActionFormBean from
the session, either because new information took place or because that one
was successfully processed.
Wellington Silva
UN/FAO
-Original Message-
From: Martin Zaidel [mailto:[EMAIL PROTECTED]]
Sent: Wednesday, May 30, 2001 6:13 AM
To: [EMAIL PROTECTED]
Subject: Solution: bean attributes not displaying (please comment)
Got it: My problem resided in these lines of code in perform() (which I
copied from an Action class in the struts-example):
if (mapping.getAttribute() != null) {
if (request.equals(mapping.getScope()))
request.removeAttribute(mapping.getAttribute());
else
session.removeAttribute(mapping.getAttribute());
}
So my question to the list is: what exactly are these lines doing?
Thanks,
Martin
Thomas Peters wrote:
Thanks for your reply...
I guessed that was the problem. I don't see the new instance being created
in my log file. I also have a fully working struts demo, which does not
display this behavior. What's up with that?
Tom
- Original Message -
From: Martin Zaidel [EMAIL PROTECTED]
To: [EMAIL PROTECTED]
Sent: Tuesday, May 29, 2001 6:49 PM
Subject: Re: bean attributes not displaying - please help
I also have this problem, but alas, no solution (as yet). I've even
tried
in struts-config.xml to set the scope of the actions to session, and
have explicitly
added the form to the session within the Action's perform(). I, too,
can see the form properly populated. However, when the form's jsp is
called, a new Form instance is instantiatedthus, the displayed form
is blank.
Any ideas?
Thomas Peters wrote:
I have a jsp page called 'customer.jsp' with a class call
'CustomerForm' which extendes ActionForm.
I have cut and paste my mappings and listed them below.
The application flow is such, that I have a link with a URI of
/searchCustomers.do?action=Search. This action calls
'CustomerSearchAction' which initializes a 'CustomerForm' with null
values for all the attributes except action, that's defaulted to
'Search'. That works fine.
When the end user completes and submits the 'CustomerForm' form, I
construct a query that returns a list of customers matching the
submitted criteria. 'Customers' is a class which contains a Hashtable
of 'Customer' objects. This is accomplished with 'CustomerListAction'
and forwards to 'customers.jsp' which presents the results in a list.
I have a 'LinkCustomerTag' class which builds links within the
iteration of 'customers' on the 'customers.jsp' page. The link looks
like this: '/editCustomer.do?action=EditcustNum=10' where
'custNum=10' dynamically changes throughout the iteration based on the
current 'customer'. This works fine too.
I select one of the links in the list which maps to '/editCustomer'
(see below) and calls the 'CustomerEditAction' class where I copy the
properties to the instance of 'CustomerForm' and 'forward' to the
'customer.jsp'. This is where my problem is.
** The form is blank. **
I have lotts of comments in my code and can see that
'PropertyUtils.copyProrerties(customerForm, customer)' is getting
called. I even modified the 'PropertyUtils' class to log the
properties being copied within the 'Enumeration' in the
'copyProperties' method. You can see these values being copied into
the 'ActionForm' but when the 'forward' is called and the
'customer.jsp' is displayed, it is empty.
Please help...
struts-config.xml
!-- == Form Bean Definitions
=== --
!-- Customer form bean --
form-bean name=customerForm
type=CustomerForm/
!-- Customer list bean --
form-bean name=customerList
type=CustomerForm/
.
.
.
.
!-- == Action Mapping Definitions
== --
!-- Search customer --
actionpath=/searchCustomer
type=CustomerSearchAction
name=customerForm
scope=request
input=/customer.jsp
forward name=success path=/customer.jsp/
/action
!-- List customers --
actionpath=/listCustomers
type=CustomerListAction
name=customerList
scope=request
forward name=success path=/customers.jsp/
/action
!-- Edit customer --
Re: URL encoded request parameters
Hi! I don't know, if this is what you are looking for, but usually to decode URL-Encoded Strings you would use String decodedString=java.net.URLDecoder.decode(encodedString); Helmut Rubasch At 09:31 30.05.2001 +0200, you wrote: hi How can I read request parameters with URL encoding from a FormBean? Jan Fredrik ___ Jan Fredrik Øveraasen | Senior Systems Developer ___ Cell Network ASA | Pb. 5313, Sørkedalsv. 10A, N-0304 Oslo, Norway ___ Tel: +47 23196600/35 | Fax: +47 23196601 | Mob: +47 93 49 99 88 ___ http://www.cellnetwork.com/ | mailto:[EMAIL PROTECTED]
RE: How do i use entity beans in Action class
Hi Ameer, Can you be more specific about the error, do you get it after deployment or during compilation? Can you provide a stack trace ? Jon. -Original Message- From: ameer [mailto:[EMAIL PROTECTED]] Sent: 30 May 2001 04:55 To: Struts Subject: How do i use entity beans in Action class I am refering to an entity bean in Action class and im using struts frame work for a simple web application on weblogic 6.0. im getting a malfunctioned weblogic. xml descriptor error .. but when i check that file it sems to be ok. what would be the error then Ameer Hussain SS s/w engineer Yashaa Infotech Pvt.Ltd. #14 , 10th Main, HAL 3rd Stage Bangalore 560075 phone: 5294430/53 http://www.yashaa.com
problem with using forms
Hi, i am trying to create a jsp page with a form on it using the Struts framwork. The problem is that i get an exception when i try to load the jsp page. The error is the following: May 30, 2001 11:53:31 AM GMT+02:00 Error HTTP [WebAppServletContext(66629 69,form)] Root cause of ServletException javax.servlet.jsp.JspException: Cannot find bean org.apache.struts.taglib.html.B EAN in scope null at org.apache.struts.util.RequestUtils.lookup(RequestUtils.java:486) at org.apache.struts.taglib.html.BaseFieldTag.doStartTag(BaseFieldTag.ja va:188) at jsp_servlet._form._jspService(_form.java:127) at weblogic.servlet.jsp.JspBase.service(JspBase.java:27) at weblogic.servlet.internal.ServletStubImpl.invokeServlet(ServletStubIm pl.java:213) at weblogic.servlet.internal.ServletStubImpl.invokeServlet(ServletStubIm pl.java:246) at weblogic.servlet.internal.WebAppServletContext.invokeServlet(WebAppSe rvletContext.java:1265) at weblogic.servlet.internal.ServletRequestImpl.execute(ServletRequestIm pl.java:1622) at weblogic.kernel.ExecuteThread.execute(ExecuteThread.java:137) at weblogic.kernel.ExecuteThread.run(ExecuteThread.java:120) I have also included the used files in this message. I have no idea what causes this error and i hope anyone can help me with this problem. Greetings, Rene Boere web.xml *** web-app servlet servlet-nameaction/servlet-name servlet-classorg.apache.struts.action.ActionServlet/servlet-class init-param param-nameconfig/param-name param-value/WEB-INF/struts-config.xml/param-value /init-param init-param param-namevalidate/param-name param-valuetrue/param-value /init-param load-on-startup1/load-on-startup /servlet servlet-mapping servlet-nameaction/servlet-name url-pattern*.do/url-pattern /servlet-mapping welcome-file-list welcome-fileform.jsp/welcome-file /welcome-file-list taglib taglib-uri/WEB-INF/struts-html.tld/taglib-uri taglib-location/WEB-INF/struts-html.tld/taglib-location /taglib /web-app *** 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-beans form-bean name=TestForm type=form.TestForm/ /form-beans action-mappings action path=/test type=form.TestAction name=TestForm forward name=test path=/test.jsp / /action /action-mappings /struts-config *** form.jsp *** %@page language=java contentType=text/html% %@ taglib uri=/WEB-INF/struts-html.tld prefix=html % html:form action=test.do/ test: html:text property=test/br html:submit value=OK/ /form ***
RE: Server caught unhandled exception from servlet [jsp11]: cant remo ve Attributes from request scope
Hi Siva, This is a problem that has been addressed on this list before. If I recall the solution is a *hack* unfortunately. Edit org.apache.struts.taglib.FormTag.doEndTag so the first two lines read : // Remove the page scope attributes we created pageContext.removeAttribute(Constants.BEAN_KEY); pageContext.removeAttribute(Constants.FORM_KEY); This seems to resolve the issue, not sure if its the best way round it however. Jon. -Original Message- From: Siva Chilukuri [mailto:[EMAIL PROTECTED]] Sent: 30 May 2001 02:04 To: '[EMAIL PROTECTED]' Subject: Server caught unhandled exception from servlet [jsp11]: cant remo ve Attributes from request scope Hi, I tried to run struts example application in Websphere3.5.3. It's giving following error message. Any ideas how to correct this? An error has occured while processing request:http://localhost/struts-example/editRegistration.do Message: Server caught unhandled exception from servlet [action]: Server caught unhandled exception from servlet [jsp11]: cant remove Attributes from request scope Target Servlet: action StackTrace: Root Error-1: cant remove Attributes from request scope java.lang.IllegalArgumentException: cant remove Attributes from request scope Thanks Siva -Original Message- From: Richard Backhouse [mailto:[EMAIL PROTECTED]] Sent: Tuesday, May 29, 2001 4:55 PM To: [EMAIL PROTECTED] Subject: Sample HDML/Wireless Struts Application For anyone who is interested, I have put together a sample hdml/wireless based struts application. You can get the source and a pre-build j2ee binary at : http://www.oakgrovesoftware.com/~rbackhouse It is a simple shared contact database that phone users can access and add/edit/delete contacts. You should be be able to getting it running with either the default setup of JBoss/Tomcat or Orion. There is more information at the above link. Richard Backhouse Oak Grove Software
RE: Multiple Buttons
Hi Steven, There is probably a more *struts* oriented approach, but give your buttons unique names, then in your action class perform method, call request.getParameter (button name) if the value returned is not null, then that button was clicked. Jon. -Original Message- From: Steven Leija [mailto:[EMAIL PROTECTED]] Sent: 30 May 2001 02:54 To: Struts Subject: Multiple Buttons Hey All, I'm working on creating a form that has multiple buttons, and based on the button selected, different actions occur. Is there a way to specify a value for a button and get that value in the action class? Thanks! Steven
html:button and html:radio in 1.0b2
Hello, i'm currently switching our application from struts-0.5 to 1.0b2 and i have to made some stupid changes in some of my jsp-pages: 1) html:radio accepts no 'tabindex' 2) html:button does not get his label from the tag-body (html:submit does it) is there a reason for this changes? thanks klaus -- Klaus Thiele - Personal Informatik AG mailto:[EMAIL PROTECTED] Your mouse has moved. Windows must be restarted for the change to take effect.
RE: bean attributes not displaying - please help
Hi Thomas Martin, I believe this problem has been addressed on this list before, I can't remember the solution but if you check the archive you should find it. I think it has something to do with the reset method getting called. Store your form under a unique tag in the request, then pop it off later. You might also try setting redirect=false within your struts-config forward directive i.e.: forward name=name path=path redirect=false / Jon. -Original Message- From: Thomas Peters [mailto:[EMAIL PROTECTED]] Sent: 30 May 2001 02:01 To: [EMAIL PROTECTED] Subject: Re: bean attributes not displaying - please help Thanks for your reply... I guessed that was the problem. I don't see the new instance being created in my log file. I also have a fully working struts demo, which does not display this behavior. What's up with that? Tom - Original Message - From: Martin Zaidel [EMAIL PROTECTED] To: [EMAIL PROTECTED] Sent: Tuesday, May 29, 2001 6:49 PM Subject: Re: bean attributes not displaying - please help I also have this problem, but alas, no solution (as yet). I've even tried in struts-config.xml to set the scope of the actions to session, and have explicitly added the form to the session within the Action's perform(). I, too, can see the form properly populated. However, when the form's jsp is called, a new Form instance is instantiatedthus, the displayed form is blank. Any ideas? Thomas Peters wrote: I have a jsp page called 'customer.jsp' with a class call 'CustomerForm' which extendes ActionForm. I have cut and paste my mappings and listed them below. The application flow is such, that I have a link with a URI of /searchCustomers.do?action=Search. This action calls 'CustomerSearchAction' which initializes a 'CustomerForm' with null values for all the attributes except action, that's defaulted to 'Search'. That works fine. When the end user completes and submits the 'CustomerForm' form, I construct a query that returns a list of customers matching the submitted criteria. 'Customers' is a class which contains a Hashtable of 'Customer' objects. This is accomplished with 'CustomerListAction' and forwards to 'customers.jsp' which presents the results in a list. I have a 'LinkCustomerTag' class which builds links within the iteration of 'customers' on the 'customers.jsp' page. The link looks like this: '/editCustomer.do?action=EditcustNum=10' where 'custNum=10' dynamically changes throughout the iteration based on the current 'customer'. This works fine too. I select one of the links in the list which maps to '/editCustomer' (see below) and calls the 'CustomerEditAction' class where I copy the properties to the instance of 'CustomerForm' and 'forward' to the 'customer.jsp'. This is where my problem is. ** The form is blank. ** I have lotts of comments in my code and can see that 'PropertyUtils.copyProrerties(customerForm, customer)' is getting called. I even modified the 'PropertyUtils' class to log the properties being copied within the 'Enumeration' in the 'copyProperties' method. You can see these values being copied into the 'ActionForm' but when the 'forward' is called and the 'customer.jsp' is displayed, it is empty. Please help... struts-config.xml !-- == Form Bean Definitions === -- !-- Customer form bean -- form-bean name=customerForm type=CustomerForm/ !-- Customer list bean -- form-bean name=customerList type=CustomerForm/ . . . . !-- == Action Mapping Definitions == -- !-- Search customer -- actionpath=/searchCustomer type=CustomerSearchAction name=customerForm scope=request input=/customer.jsp forward name=success path=/customer.jsp/ /action !-- List customers -- actionpath=/listCustomers type=CustomerListAction name=customerList scope=request forward name=success path=/customers.jsp/ /action !-- Edit customer -- actionpath=/editCustomer type=CustomerEditAction name=customerForm scope=request validate=false forward name=failure path=/customers.jsp/ forward name=success path=/customer.jsp/ /action -- Martin Zaidel, Senior Software Engineer Cortex eBusiness P/L, Melbourne www.cortexebusiness.com.au
RE: Form tag problem in VAJ 3.5.3 WTE with 1.0b2
Hi All, Opps and apologies, adding a getRequest may resolve this little one, I tried editing org.apache.struts.taglib.FormTag.doEndTag as follows : // Remove the page scope attributes we created pageContext.getRequest().removeAttribute(Constants.BEAN_KEY); pageContext.getRequest().removeAttribute(Constants.FORM_KEY); And when I called : Object o = pageContext.getRequest().getAttribute(Constants.BEAN_KEY); Got null as I would expect. Jon. -Original Message- From: Daniel Benzimra-Ceuppens [mailto:[EMAIL PROTECTED]] Sent: 29 May 2001 19:38 To: [EMAIL PROTECTED] Cc: [EMAIL PROTECTED]; [EMAIL PROTECTED]; [EMAIL PROTECTED] Subject: Form tag problem in VAJ 3.5.3 WTE with 1.0b2 Hello, I had the same problems with WAS 3.5.3. I did try the solution proposed by Jon. It works but without doing anything: the attributes are still there.In other words, commenting out the 2 lines completely has exactly the same effect. With best regards, Daniel. - Daniel Ceuppens GSM Ltd. [M] +972-54-905-312 [F] +972-3-916-0037 [E] [EMAIL PROTECTED] -
Ideas (and a quick implementation) for extending Struts
All, If anyone read my last (and first) posting to the list they'll know that I'm new to Struts. Anyway, after deciding to plan on using Struts in my next project, I felt that for the application many Beans would be required for the many, many, many, forms. All of which will need extensive validation. So I decided that ideally one shouldn't need to define a Bean for each form, only define the data on the form to be picked up by the ActionServlet, validated and then passed to the custom Action class. Anyway, I thought that it would be a lot of work to implement and also read the current plans for version 1.1 (of Struts) and came up with a half-way house, for us in the interim. However, at the w/e I got bored and ended up writing my initial design and it is already just about useable. It's not complete and I'm sure there's lots of missing pieces and bugs. I intend to carry on with it this week as much as I can, but thought I'd just pass on more about it. Once it is more useable I'll willingly pass on the code to others, but it can't be easily back-engineered into newer releases of Struts, and I don't really want to spark any code-forking. But at the least it may spark some ideas for the Struts developers. My implementation of course is very rough and there are much better ways to do it, and I'm in no doubt that the team (knowing the framework inside-out) could do it much better. (I also have other ideas that would be cool too) Anyway, he's how it is used: (I've directly re-coded existing classes where necessary, and also made a new package. All original Struts functionality remains - I hope!.) 1. in the struts-config.xml file you have a definition for your forms, e.g. action-mappings action path=/order type=com.bar.fu.OrderAction name=orderForm input=/order.jsp forward name=success path=/confirmOrder.jsp / /action /action-mappings data-mappings data-mapping name=orderForm property-mapping viewName=customerID modelName=customerID type =int required=true / property-mapping viewName=productID modelName=productID type =int required=true / property-mapping viewName=price modelName=price type=float required=true regExpr= / /data-mapping /data-mappings An additional property-mapping attribute is 'defaultValue'. 2. If validation is specified in web.xml then each data value is validated according to the data-type to be converted to and any regular expressions given (haven't implemented the regExp bit yet). Failure naturally takes the user back to the 'input' page (in the action-mappings). 3. All that happens then is that the ActionForm given in Action.process() is a subclass called org.apache.struts.data.DataForm which is a 'glorified Hashtable' of the values defined in the data-mapping for that form. 4. There will also be populate and extract methods on the DataForm class to automatically 'move' values to and from the DataForm and a Bean (or EJB) given. Using this extension to Struts will greatly speed the development of our next project, but it would be good if something like it could be incorporated into the original code-stream. Anyway, if people are interested in it then let me know and once I've put some more work into it I'll be happy to pass it on. Regards, Sean -- Dr Sean Radford, MBBS, MSc Senior Consultant Agora Professional Services Ltd [EMAIL PROTECTED] http://www.agora.co.uk
Fw: How do i use entity beans in Action class
Hi Jon, thanx for replying . i am facing problems in deployment descriptor .. compilation is fine and the application is getting deployed. im refering to entity bean inmy action class and i am facing problems like May 30, 2001 5:09:39 PM GMT+05:30 Error Kernel ExecuteRequest failedjava.lang.IllegalArgumentException: bad URLMatchMap path: '' at weblogic.servlet.utils.URLMatchMap.get(URLMatchMap.java:196) at weblogic.servlet.security.internal.WebAppSecurity.getConstraint(WebAppSecurity.java:135) at weblogic.servlet.security.internal.SecurityModule.checkTransport(SecurityModule.java:177) at weblogic.servlet.security.internal.BasicSecurityModule.checkA(BasicSecurityModule.java:48) at weblogic.servlet.security.internal.ServletSecurityManager.checkAccess(ServletSecurityManager.java:150) at weblogic.servlet.internal.WebAppServletContext.invokeServlet(WebAppServletContext.java:1250) at weblogic.servlet.internal.ServletRequestImpl.execute(ServletRequestImpl.java:1622) at weblogic.kernel.ExecuteThread.execute(ExecuteThread.java:137) at weblogic.kernel.ExecuteThread.run(ExecuteThread.java:120) with regards and thanx. Ameer Hussain SSs/w engineerYashaa Infotech Pvt.Ltd.#14 , 10th Main, HAL 3rd StageBangalore 560075phone: 5294430/53 http://www.yashaa.com
template and I18N
Hi all,
I've just started to use Struts and I have some questions:
1. How can I use the I18N features in the template tags?
In my template.jsp I've got the following tag:
titletemplate:get name='title'//title
In the page using this teplate the following:
template:put name='title' content='Kalkulation' direct='true'/
I'd like to replace the German text 'Kalkulation' with its
key e.g. 'app.title.calculation' Is there a nice way to do this?
2. How can I use use the I18N features in Struts directly
in Java Scriplets?
Sometimes I need the translated texts in scriplets. What is
the best way to access them?
Now I am using this aproach:
%
MessageResources resources =
(MessageResources) pageContext.getAttribute(
Action.MESSAGES_KEY, PageContext.APPLICATION_SCOPE);
Locale locale =
(Locale) pageContext.getAttribute(
Action.LOCALE_KEY, PageContext.SESSION_SCOPE);
if (null == locale) {
locale = request.getLocale();
}
String myText = resources.getMessage(locale, app.the.text,key);
%
Thanks for an answer
--
gR
use JSP variable as a value of property in html:select ... tag
Hi, I would like use an expression such as : html:select property=%= var% size=1 but I can't do this. The error obtained is : Attribute value should be quoted So, I tried : html:select property=%= var% size=1 then it results a new error : Attribute % has no value that is the problem? How can I consider a JSP variable for an attribute value? Thanks for your response ... - Cyril -
Re: Sample HDML/Wireless Struts Application
Never wrote a wireless app, but the code looks real nice... - Original Message - From: Richard Backhouse [EMAIL PROTECTED] To: [EMAIL PROTECTED] Sent: Tuesday, May 29, 2001 7:55 PM Subject: Sample HDML/Wireless Struts Application For anyone who is interested, I have put together a sample hdml/wireless based struts application. You can get the source and a pre-build j2ee binary at : http://www.oakgrovesoftware.com/~rbackhouse It is a simple shared contact database that phone users can access and add/edit/delete contacts. You should be be able to getting it running with either the default setup of JBoss/Tomcat or Orion. There is more information at the above link. Richard Backhouse Oak Grove Software
RE: template and I18N
look at the bean:message tag:
bean:message key=title/
johan
-Original Message-
From: Gregor Rayman [mailto:[EMAIL PROTECTED]]
Sent: Wednesday, May 30, 2001 2:12 PM
To: [EMAIL PROTECTED]
Subject: template and I18N
Hi all,
I've just started to use Struts and I have some questions:
1. How can I use the I18N features in the template tags?
In my template.jsp I've got the following tag:
titletemplate:get name='title'//title
In the page using this teplate the following:
template:put name='title' content='Kalkulation' direct='true'/
I'd like to replace the German text 'Kalkulation' with its
key e.g. 'app.title.calculation' Is there a nice way to do this?
2. How can I use use the I18N features in Struts directly
in Java Scriplets?
Sometimes I need the translated texts in scriplets. What is
the best way to access them?
Now I am using this aproach:
%
MessageResources resources =
(MessageResources) pageContext.getAttribute(
Action.MESSAGES_KEY, PageContext.APPLICATION_SCOPE);
Locale locale =
(Locale) pageContext.getAttribute(
Action.LOCALE_KEY, PageContext.SESSION_SCOPE);
if (null == locale) {
locale = request.getLocale();
}
String myText = resources.getMessage(locale, app.the.text,key);
%
Thanks for an answer
--
gR
Re: template and I18N
Johan Compagner [EMAIL PROTECTED] writes: look at the bean:message tag: bean:message key=title/ johan Hi Johan, this does not help me. bean:message key=title / prints the internationalized word Title. But I want to use it in the template to print various titles. Example (without the headers): ApplicationResources.properties === app.login=Login app.logout=Logout ApplicationResources_de.properties == app.login=Anmelden app.logout=Abmelden now the template files: template.jsp ... headtitletemplate:get name=title //title/head ... login.jsp = template:insert template='/template.jsp' template:put name='title' content='Login' direct='true'/ ... /template:insert logout.jsp == template:insert template='/template.jsp' template:put name='title' content='Logout' direct='true'/ ... /template:insert As you can see, I have to insert the words Login and Logout into the files login.jsp and logout.jsp literally, instead of inserting the keys app.login and app.logout Of course I could use the scripplet approach and use template:put name='title' content='%= resources.getMessage(locale, app.login) %' direct='true' / instead. But is there a nicer way? Something like: template:put name='title' direct='true' bean:message key='app.login' / /template:put Groetjes -- gR
RE: template and I18N
try bean:message key=%= title % / == call teh bean and pass the key using a jsp-value good luck Alexander -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]] Sent: Wednesday, May 30, 2001 3:02 PM To: [EMAIL PROTECTED] Subject: Re: template and I18N Johan Compagner [EMAIL PROTECTED] writes: look at the bean:message tag: bean:message key=title/ johan Hi Johan, this does not help me. bean:message key=title / prints the internationalized word Title. But I want to use it in the template to print various titles. Example (without the headers): ApplicationResources.properties === app.login=Login app.logout=Logout ApplicationResources_de.properties == app.login=Anmelden app.logout=Abmelden now the template files: template.jsp ... headtitletemplate:get name=title //title/head ... login.jsp = template:insert template='/template.jsp' template:put name='title' content='Login' direct='true'/ ... /template:insert logout.jsp == template:insert template='/template.jsp' template:put name='title' content='Logout' direct='true'/ ... /template:insert As you can see, I have to insert the words Login and Logout into the files login.jsp and logout.jsp literally, instead of inserting the keys app.login and app.logout Of course I could use the scripplet approach and use template:put name='title' content='%= resources.getMessage(locale, app.login) %' direct='true' / instead. But is there a nicer way? Something like: template:put name='title' direct='true' bean:message key='app.login' / /template:put Groetjes -- gR
Which component employs the template:put tags ??
is this template tag part of Struts? template:put ...
RE: problem with using forms
Hi Rene, A quick glance and I can't see anything wrong in your conf files. Have you got the examples app to work? I ask because I suspect you have a classpath issue. What web server are you using? Jon. -Original Message- From: René Boere [mailto:[EMAIL PROTECTED]] Sent: 30 May 2001 10:59 To: '[EMAIL PROTECTED]' Subject: problem with using forms Hi, i am trying to create a jsp page with a form on it using the Struts framwork. The problem is that i get an exception when i try to load the jsp page. The error is the following: May 30, 2001 11:53:31 AM GMT+02:00 Error HTTP [WebAppServletContext(66629 69,form)] Root cause of ServletException javax.servlet.jsp.JspException: Cannot find bean org.apache.struts.taglib.html.B EAN in scope null at org.apache.struts.util.RequestUtils.lookup(RequestUtils.java:486) at org.apache.struts.taglib.html.BaseFieldTag.doStartTag(BaseFieldTag.ja va:188) at jsp_servlet._form._jspService(_form.java:127) at weblogic.servlet.jsp.JspBase.service(JspBase.java:27) at weblogic.servlet.internal.ServletStubImpl.invokeServlet(ServletStubIm pl.java:213) at weblogic.servlet.internal.ServletStubImpl.invokeServlet(ServletStubIm pl.java:246) at weblogic.servlet.internal.WebAppServletContext.invokeServlet(WebAppSe rvletContext.java:1265) at weblogic.servlet.internal.ServletRequestImpl.execute(ServletRequestIm pl.java:1622) at weblogic.kernel.ExecuteThread.execute(ExecuteThread.java:137) at weblogic.kernel.ExecuteThread.run(ExecuteThread.java:120) I have also included the used files in this message. I have no idea what causes this error and i hope anyone can help me with this problem. Greetings, Rene Boere web.xml *** web-app servlet servlet-nameaction/servlet-name servlet-classorg.apache.struts.action.ActionServlet/servlet-class init-param param-nameconfig/param-name param-value/WEB-INF/struts-config.xml/param-value /init-param init-param param-namevalidate/param-name param-valuetrue/param-value /init-param load-on-startup1/load-on-startup /servlet servlet-mapping servlet-nameaction/servlet-name url-pattern*.do/url-pattern /servlet-mapping welcome-file-list welcome-fileform.jsp/welcome-file /welcome-file-list taglib taglib-uri/WEB-INF/struts-html.tld/taglib-uri taglib-location/WEB-INF/struts-html.tld/taglib-location /taglib /web-app *** 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-beans form-bean name=TestForm type=form.TestForm/ /form-beans action-mappings action path=/test type=form.TestAction name=TestForm forward name=test path=/test.jsp / /action /action-mappings /struts-config *** form.jsp *** %@page language=java contentType=text/html% %@ taglib uri=/WEB-INF/struts-html.tld prefix=html % html:form action=test.do/ test: html:text property=test/br html:submit value=OK/ /form ***
RE: Which component employs the template:put tags ??
Hi Jonathan, It certainly is. The template example provided with struts shows how to use it. The role based templating is particularly useful. Jon. -Original Message- From: Jonathan Asbell [mailto:[EMAIL PROTECTED]] Sent: 30 May 2001 14:16 To: [EMAIL PROTECTED] Subject: Which component employs the template:put tags ?? is this template tag part of Struts? template:put ...
RE: use JSP variable as a value of property in html:select ... tag
any change with : html:select property='%= var%' size=1 there is still an error : Attribute % has no value - Cyril - -Message d'origine- De : Mikkel Bruun [mailto:[EMAIL PROTECTED]] Envoyé : mercredi 30 mai 2001 14:58 À : '[EMAIL PROTECTED]' Objet : SV: use JSP variable as a value of property in html:select ... tag use single qoutes '' Mikkel -Oprindelig meddelelse- Fra: someil [mailto:[EMAIL PROTECTED]] Sendt: 30 May 2001 14:42 Til: [EMAIL PROTECTED] Emne: use JSP variable as a value of property in html:select ... tag Hi, I would like use an expression such as : html:select property=%= var% size=1 but I can't do this. The error obtained is : Attribute value should be quoted So, I tried : html:select property=%= var% size=1 then it results a new error : Attribute % has no value that is the problem? How can I consider a JSP variable for an attribute value? Thanks for your response ... - Cyril -
Re: Resources clarification :^)
You could combine all of your property files during your build. This would allow you to have as many different property files as you want. However, you need to be careful that you do not have duplicate names across multiple files. HTH, Pete Jonathan wrote: Hello all. It appears that the ActionServlet points to a resources file, and not a ResourceBundle object. Is this true? The reason is that I would like to group in the same directory the following:1) a particular ActionForm2) the Action class that works with that ActionForm3) the resources (strings) that work with that ActionForm The reason is that it is much easier to manage the artifacts on a page by page basis.How can I do this properly ThanksJonathan begin:vcard n:; x-mozilla-html:FALSE org:BRIMG SRC=http://www.irista.com/logo/irista.gif;BRBRFONT Color=#80FONT SIZE=2BBringing Vision to Your Supply Chain adr:;; version:2.1 end:vcard
RE: problem with using forms
Hi Jon, The example applications are working fine, so the classpath is correctly set. I have isolated this problem to the html:text tag in my JSP file. If i remove this line from the JSP file it shows correctly. The second problem i have with this test jsp file is that when I press the submit button, nothing happens. Rene -Original Message- From: Jon.Ridgway [mailto:[EMAIL PROTECTED]] Sent: Wednesday, May 30, 2001 15:22 To: [EMAIL PROTECTED] Subject: RE: problem with using forms Hi Rene, A quick glance and I can't see anything wrong in your conf files. Have you got the examples app to work? I ask because I suspect you have a classpath issue. What web server are you using? Jon. -Original Message- From: René Boere [mailto:[EMAIL PROTECTED]] Sent: 30 May 2001 10:59 To: '[EMAIL PROTECTED]' Subject: problem with using forms Hi, i am trying to create a jsp page with a form on it using the Struts framwork. The problem is that i get an exception when i try to load the jsp page. The error is the following: May 30, 2001 11:53:31 AM GMT+02:00 Error HTTP [WebAppServletContext(66629 69,form)] Root cause of ServletException javax.servlet.jsp.JspException: Cannot find bean org.apache.struts.taglib.html.B EAN in scope null at org.apache.struts.util.RequestUtils.lookup(RequestUtils.java:486) at org.apache.struts.taglib.html.BaseFieldTag.doStartTag(BaseFieldTag.ja va:188) at jsp_servlet._form._jspService(_form.java:127) at weblogic.servlet.jsp.JspBase.service(JspBase.java:27) at weblogic.servlet.internal.ServletStubImpl.invokeServlet(ServletStubIm pl.java:213) at weblogic.servlet.internal.ServletStubImpl.invokeServlet(ServletStubIm pl.java:246) at weblogic.servlet.internal.WebAppServletContext.invokeServlet(WebAppSe rvletContext.java:1265) at weblogic.servlet.internal.ServletRequestImpl.execute(ServletRequestIm pl.java:1622) at weblogic.kernel.ExecuteThread.execute(ExecuteThread.java:137) at weblogic.kernel.ExecuteThread.run(ExecuteThread.java:120) I have also included the used files in this message. I have no idea what causes this error and i hope anyone can help me with this problem. Greetings, Rene Boere web.xml *** web-app servlet servlet-nameaction/servlet-name servlet-classorg.apache.struts.action.ActionServlet/servlet-class init-param param-nameconfig/param-name param-value/WEB-INF/struts-config.xml/param-value /init-param init-param param-namevalidate/param-name param-valuetrue/param-value /init-param load-on-startup1/load-on-startup /servlet servlet-mapping servlet-nameaction/servlet-name url-pattern*.do/url-pattern /servlet-mapping welcome-file-list welcome-fileform.jsp/welcome-file /welcome-file-list taglib taglib-uri/WEB-INF/struts-html.tld/taglib-uri taglib-location/WEB-INF/struts-html.tld/taglib-location /taglib /web-app *** 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-beans form-bean name=TestForm type=form.TestForm/ /form-beans action-mappings action path=/test type=form.TestAction name=TestForm forward name=test path=/test.jsp / /action /action-mappings /struts-config *** form.jsp *** %@page language=java contentType=text/html% %@ taglib uri=/WEB-INF/struts-html.tld prefix=html % html:form action=test.do/ test: html:text property=test/br html:submit value=OK/ /form ***
RE: problem with using forms
I received this error message when i didn't have my form bean class compiled and created in the package as specified in the type attribute of the form-bean tag definition of the struts-config.xml file I noticed your definition is as follows: form-beans form-bean name=TestForm type=form.TestForm/ /form-beans Is form your package name for your TestForm bean form? Based on this definition, it looks like form is the package name for TestForm. Not sure if this is your problem, but make sure your form bean is created for the corresponding jsp with the correct package name AND make sure you place your package (including classes) in your WEB-INF\classes directory. JD -Original Message- From: Jon.Ridgway [mailto:[EMAIL PROTECTED]] Sent: Wednesday, May 30, 2001 9:22 AM To: [EMAIL PROTECTED] Subject: RE: problem with using forms Hi Rene, A quick glance and I can't see anything wrong in your conf files. Have you got the examples app to work? I ask because I suspect you have a classpath issue. What web server are you using? Jon. -Original Message- From: René Boere [mailto:[EMAIL PROTECTED]] Sent: 30 May 2001 10:59 To: '[EMAIL PROTECTED]' Subject: problem with using forms Hi, i am trying to create a jsp page with a form on it using the Struts framwork. The problem is that i get an exception when i try to load the jsp page. The error is the following: May 30, 2001 11:53:31 AM GMT+02:00 Error HTTP [WebAppServletContext(66629 69,form)] Root cause of ServletException javax.servlet.jsp.JspException: Cannot find bean org.apache.struts.taglib.html.B EAN in scope null at org.apache.struts.util.RequestUtils.lookup(RequestUtils.java:486) at org.apache.struts.taglib.html.BaseFieldTag.doStartTag(BaseFieldTag.ja va:188) at jsp_servlet._form._jspService(_form.java:127) at weblogic.servlet.jsp.JspBase.service(JspBase.java:27) at weblogic.servlet.internal.ServletStubImpl.invokeServlet(ServletStubIm pl.java:213) at weblogic.servlet.internal.ServletStubImpl.invokeServlet(ServletStubIm pl.java:246) at weblogic.servlet.internal.WebAppServletContext.invokeServlet(WebAppSe rvletContext.java:1265) at weblogic.servlet.internal.ServletRequestImpl.execute(ServletRequestIm pl.java:1622) at weblogic.kernel.ExecuteThread.execute(ExecuteThread.java:137) at weblogic.kernel.ExecuteThread.run(ExecuteThread.java:120) I have also included the used files in this message. I have no idea what causes this error and i hope anyone can help me with this problem. Greetings, Rene Boere web.xml *** web-app servlet servlet-nameaction/servlet-name servlet-classorg.apache.struts.action.ActionServlet/servlet-class init-param param-nameconfig/param-name param-value/WEB-INF/struts-config.xml/param-value /init-param init-param param-namevalidate/param-name param-valuetrue/param-value /init-param load-on-startup1/load-on-startup /servlet servlet-mapping servlet-nameaction/servlet-name url-pattern*.do/url-pattern /servlet-mapping welcome-file-list welcome-fileform.jsp/welcome-file /welcome-file-list taglib taglib-uri/WEB-INF/struts-html.tld/taglib-uri taglib-location/WEB-INF/struts-html.tld/taglib-location /taglib /web-app *** 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-beans form-bean name=TestForm type=form.TestForm/ /form-beans action-mappings action path=/test type=form.TestAction name=TestForm forward name=test path=/test.jsp / /action /action-mappings /struts-config *** form.jsp *** %@page language=java contentType=text/html% %@ taglib uri=/WEB-INF/struts-html.tld prefix=html % html:form action=test.do/ test: html:text property=test/br html:submit value=OK/ /form ***
RE: problem with using forms
I am pretty sure that the TestForm class is correctly compiled in the correct directory to be sure i have listed the contents of the form.war i have deployed in WL6.0 filesystem.attributes form.jsp test.jsp META-INF\MANIFEST.MF WEB-INF\struts-config.xml WEB-INF\struts-html.tld WEB-INF\web.xml WEB-INF\classes\form\filesystem.attributes WEB-INF\classes\form\TestAction.class WEB-INF\classes\form\TestAction.java WEB-INF\classes\form\TestForm.class WEB-INF\classes\form\TestForm.java WEB-INF\lib\struts.jar There is also an instance created of the TestForm bean. I know that because of the System.out.println line in the constructor, which displayes construction info in the weblogic server window. Rene -Original Message- From: du Clos, John [mailto:[EMAIL PROTECTED]] Sent: Wednesday, May 30, 2001 15:36 To: '[EMAIL PROTECTED]' Subject: RE: problem with using forms I received this error message when i didn't have my form bean class compiled and created in the package as specified in the type attribute of the form-bean tag definition of the struts-config.xml file I noticed your definition is as follows: form-beans form-bean name=TestForm type=form.TestForm/ /form-beans Is form your package name for your TestForm bean form? Based on this definition, it looks like form is the package name for TestForm. Not sure if this is your problem, but make sure your form bean is created for the corresponding jsp with the correct package name AND make sure you place your package (including classes) in your WEB-INF\classes directory. JD -Original Message- From: Jon.Ridgway [mailto:[EMAIL PROTECTED]] Sent: Wednesday, May 30, 2001 9:22 AM To: [EMAIL PROTECTED] Subject: RE: problem with using forms Hi Rene, A quick glance and I can't see anything wrong in your conf files. Have you got the examples app to work? I ask because I suspect you have a classpath issue. What web server are you using? Jon. -Original Message- From: René Boere [mailto:[EMAIL PROTECTED]] Sent: 30 May 2001 10:59 To: '[EMAIL PROTECTED]' Subject: problem with using forms Hi, i am trying to create a jsp page with a form on it using the Struts framwork. The problem is that i get an exception when i try to load the jsp page. The error is the following: May 30, 2001 11:53:31 AM GMT+02:00 Error HTTP [WebAppServletContext(66629 69,form)] Root cause of ServletException javax.servlet.jsp.JspException: Cannot find bean org.apache.struts.taglib.html.B EAN in scope null at org.apache.struts.util.RequestUtils.lookup(RequestUtils.java:486) at org.apache.struts.taglib.html.BaseFieldTag.doStartTag(BaseFieldTag.ja va:188) at jsp_servlet._form._jspService(_form.java:127) at weblogic.servlet.jsp.JspBase.service(JspBase.java:27) at weblogic.servlet.internal.ServletStubImpl.invokeServlet(ServletStubIm pl.java:213) at weblogic.servlet.internal.ServletStubImpl.invokeServlet(ServletStubIm pl.java:246) at weblogic.servlet.internal.WebAppServletContext.invokeServlet(WebAppSe rvletContext.java:1265) at weblogic.servlet.internal.ServletRequestImpl.execute(ServletRequestIm pl.java:1622) at weblogic.kernel.ExecuteThread.execute(ExecuteThread.java:137) at weblogic.kernel.ExecuteThread.run(ExecuteThread.java:120) I have also included the used files in this message. I have no idea what causes this error and i hope anyone can help me with this problem. Greetings, Rene Boere web.xml *** web-app servlet servlet-nameaction/servlet-name servlet-classorg.apache.struts.action.ActionServlet/servlet-class init-param param-nameconfig/param-name param-value/WEB-INF/struts-config.xml/param-value /init-param init-param param-namevalidate/param-name param-valuetrue/param-value /init-param load-on-startup1/load-on-startup /servlet servlet-mapping servlet-nameaction/servlet-name url-pattern*.do/url-pattern /servlet-mapping welcome-file-list welcome-fileform.jsp/welcome-file /welcome-file-list taglib taglib-uri/WEB-INF/struts-html.tld/taglib-uri taglib-location/WEB-INF/struts-html.tld/taglib-location /taglib /web-app *** 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-beans form-bean name=TestForm type=form.TestForm/ /form-beans action-mappings action path=/test type=form.TestAction name=TestForm
RE: html:button and html:radio in 1.0b2
I think problem 1 was fixed last night. Problem 2 was an accidental regression and has been reported as a bug. -Original Message- From: Klaus Thiele [mailto:[EMAIL PROTECTED]] Sent: Wednesday, May 30, 2001 6:20 AM To: STRUTS-USER Subject: html:button and html:radio in 1.0b2 Hello, i'm currently switching our application from struts-0.5 to 1.0b2 and i have to made some stupid changes in some of my jsp-pages: 1) html:radio accepts no 'tabindex' 2) html:button does not get his label from the tag-body (html:submit does it) is there a reason for this changes? thanks klaus -- Klaus Thiele - Personal Informatik AG mailto:[EMAIL PROTECTED] Your mouse has moved. Windows must be restarted for the change to take effect.
generate ActionForms
Hi, I want to generate the ActionForm-classes. Do somebody know something about tools to generate Java-classes? Gruß Michael -- Java - write once, run anywhere
Re: generate ActionForms
TogetherJ by togethersoft will (www.togethersoft.com) They have a free 'lightweight' version that will do what you want. Regards, Sean -- Dr Sean Radford, MBBS, MSc Senior Consultant Agora Professional Services Ltd [EMAIL PROTECTED] http://www.agora.co.uk Michael Schommer Michael.Schommer@ferTo: [EMAIL PROTECTED] nbach.com cc: Subject: generate ActionForms 30/05/2001 15:56 Please respond to struts-user Hi, I want to generate the ActionForm-classes. Do somebody know something about tools to generate Java-classes? Gruß Michael -- Java - write once, run anywhere
Re: Solution: bean attributes not displaying (please comment)
The struts documentation indicates that 'mapping.getAttribute()' returns the
mapping name. In the case of the perform method in an Action instance, this
is a passed in property.
Therefore, 'request.removeAttribute(mapping,getAttribute())' removes the
stored attribute from the request context where attribute is the name of the
mapping.
This would have been stored in the request context in some previous step.
However, in the case that the mapping.getScope() doesn't return 'request' it
is removed from the session scope.
- Original Message -
From: Martin Zaidel [EMAIL PROTECTED]
To: [EMAIL PROTECTED]
Sent: Wednesday, May 30, 2001 12:12 AM
Subject: Solution: bean attributes not displaying (please comment)
Got it: My problem resided in these lines of code in perform() (which I
copied from an Action class in the struts-example):
if (mapping.getAttribute() != null) {
if (request.equals(mapping.getScope()))
request.removeAttribute(mapping.getAttribute());
else
session.removeAttribute(mapping.getAttribute());
}
So my question to the list is: what exactly are these lines doing?
Thanks,
Martin
Thomas Peters wrote:
Thanks for your reply...
I guessed that was the problem. I don't see the new instance being
created
in my log file. I also have a fully working struts demo, which does not
display this behavior. What's up with that?
Tom
- Original Message -
From: Martin Zaidel [EMAIL PROTECTED]
To: [EMAIL PROTECTED]
Sent: Tuesday, May 29, 2001 6:49 PM
Subject: Re: bean attributes not displaying - please help
I also have this problem, but alas, no solution (as yet). I've even
tried
in struts-config.xml to set the scope of the actions to session, and
have explicitly
added the form to the session within the Action's perform(). I, too,
can see the form properly populated. However, when the form's jsp is
called, a new Form instance is instantiatedthus, the displayed
form
is blank.
Any ideas?
Thomas Peters wrote:
I have a jsp page called 'customer.jsp' with a class call
'CustomerForm' which extendes ActionForm.
I have cut and paste my mappings and listed them below.
The application flow is such, that I have a link with a URI of
/searchCustomers.do?action=Search. This action calls
'CustomerSearchAction' which initializes a 'CustomerForm' with null
values for all the attributes except action, that's defaulted to
'Search'. That works fine.
When the end user completes and submits the 'CustomerForm' form, I
construct a query that returns a list of customers matching the
submitted criteria. 'Customers' is a class which contains a
Hashtable
of 'Customer' objects. This is accomplished with
'CustomerListAction'
and forwards to 'customers.jsp' which presents the results in a
list.
I have a 'LinkCustomerTag' class which builds links within the
iteration of 'customers' on the 'customers.jsp' page. The link looks
like this: '/editCustomer.do?action=EditcustNum=10' where
'custNum=10' dynamically changes throughout the iteration based on
the
current 'customer'. This works fine too.
I select one of the links in the list which maps to '/editCustomer'
(see below) and calls the 'CustomerEditAction' class where I copy
the
properties to the instance of 'CustomerForm' and 'forward' to the
'customer.jsp'. This is where my problem is.
** The form is blank. **
I have lotts of comments in my code and can see that
'PropertyUtils.copyProrerties(customerForm, customer)' is getting
called. I even modified the 'PropertyUtils' class to log the
properties being copied within the 'Enumeration' in the
'copyProperties' method. You can see these values being copied into
the 'ActionForm' but when the 'forward' is called and the
'customer.jsp' is displayed, it is empty.
Please help...
struts-config.xml
!-- == Form Bean Definitions
=== --
!-- Customer form bean --
form-bean name=customerForm
type=CustomerForm/
!-- Customer list bean --
form-bean name=customerList
type=CustomerForm/
.
.
.
.
!-- == Action Mapping Definitions
== --
!-- Search customer --
actionpath=/searchCustomer
type=CustomerSearchAction
name=customerForm
scope=request
input=/customer.jsp
forward name=success path=/customer.jsp/
/action
!-- List customers --
actionpath=/listCustomers
type=CustomerListAction
Any hosting sites that use Struts?
Anyone know of a hosting facility that offers Java web hosting + Struts?
RE: Any hosting sites that use Struts?
Check out MMA Web at http://www.mmaweb.com/ http://www.mmaweb.com/ . They offer hosting accounts with a private VM so you can install Struts on your own. They also have support for Cocoon. -Original Message- From: Jeff Trent [mailto:[EMAIL PROTECTED]] Sent: Wednesday, May 30, 2001 9:12 AM To: [EMAIL PROTECTED] Subject: Any hosting sites that use Struts? Anyone know of a hosting facility that offers Java web hosting + Struts?
Multipart and IIS
I just created a jsp page with a html:file tag on it, setup the ActionForm to accept the file, etc. The Action class gets called, I do what I need to do with the file and then return mapping.findForward(success). The mapping is returning /admin/index.jsp which is correct. In struts-config, I have redirect=true for the success forward. When doing this on my devl machine, using Tomcat as my http and jsp server, it works fine. When doing this on our production system with IIS 5.0 as my http and Tomcat 3.2.1 as the jsp server, it fails. The redirect is failing. If I change it to not redirect but forward, it works. Or, if I take out the enctype=multipart/form-data from the posting page, the redirect works as well. Has anyone seen this? Am I explaining it well enough? -- Thanks, Michael Binette
Re: Any hosting sites that use Struts?
You can take a look at http://www.webappcabaret.com I don't have any experience with their service. /Anders. - Original Message - From: Jeff Trent To: [EMAIL PROTECTED] Sent: Wednesday, May 30, 2001 6:12 PM Subject: Any hosting sites that use Struts? Anyone know of a hosting facility that offers Java web hosting + Struts?
RE: Any hosting sites that use Struts?
I looked around for sites that host jsp/servlet based apps awhile ago and came up with these links: http://www.irdesign.com/services/hosting/website_hosting.html http://www.hostjsp.com/ http://www.mmaweb.net/ http://www.servlets.net/index.html http://www.infinitehost.com/ I can't vouch for any of them. I would be interested in hearing feedback about these providers or other options. Hal -Original Message-From: Jeff Trent [mailto:[EMAIL PROTECTED]]Sent: Wednesday, May 30, 2001 12:12 PMTo: [EMAIL PROTECTED]Subject: Any hosting sites that use Struts? Anyone know of a hosting facility that offers Java web hosting + Struts?
Re: getting a specific ArrayList element
The iterate tag has 'offset' and 'length' as attributes. You should be able to use both of these to retrieve a specific element. http://jakarta.apache.org/struts/struts-logic.html#iterate length - The maximum number of entries (from the underlying collection) to be iterated through on this page. This can be either an integer that directly expresses the desired value, or the name of a JSP bean (in any scope) of type java.lang.Integer that defines the desired value. If not present, there will be no limit on the number of iterations performed. [RT Expr] offset - The zero-relative index of the starting point at which entries from the underlying collection will be iterated through. This can be either an integer that directly expresses the desired value, or the name of a JSP bean (in any scope) of type java.lang.Integer that defines the desired value. If not present, zero is assumed (meaning that the collection will be iterated from the beginning. [RT Expr] David --- Charlesworth, Chico [EMAIL PROTECTED] wrote: To iterate through a java.util.ArrayList i use logic:iterate struts tag and that works fine ... but which tag do i need to use and what attribute settings do i need to access a specific ArrayList element? for example if i wanted to access the second element of my ArrayList using jsp, i would just do: %MyObject o = (MyObject) myArrayList.get(1);% Any ideas? chico -- The content of this e-mail is confidential, may contain privileged material and is intended solely for the recipient(s) named above. If you receive this in error, please notify Software AG immediately and delete this e-mail. Software AG (UK) Limited Registered in England Wales 1310740 Registered Office: Hudson House, Hudson Way, Pride Park, Derby DE24 8HS __ Do You Yahoo!? Get personalized email addresses from Yahoo! Mail - only $35 a year! http://personal.mail.yahoo.com/
RE: Any hosting sites that use Struts?
http://www.webappcabaret.com/ -Original Message-From: Jeff Trent [mailto:[EMAIL PROTECTED]]Sent: Wednesday, May 30, 2001 12:12 PMTo: struts-userSubject: Any hosting sites that use Struts? Anyone know of a hosting facility that offers Java web hosting + Struts?
SV: Any hosting sites that use Struts?
or www.aoindustries.com Its run by (among others) a guynamed Dan. Until about a year ago Dan offered hosting for free!! including jsp, servlets, mysql to anybody Unfortunaltely some punks took advantage of this, and used his servers in a DOS attack... He the moved on and founded aoindustries Nevertheless, I HAVE to recommend him because of his great initiative... Mikkel -Oprindelig meddelelse-Fra: Deadman, Hal [mailto:[EMAIL PROTECTED]]Sendt: 30 May 2001 18:22Til: [EMAIL PROTECTED]Emne: RE: Any hosting sites that use Struts? I looked around for sites that host jsp/servlet based apps awhile ago and came up with these links: http://www.irdesign.com/services/hosting/website_hosting.html http://www.hostjsp.com/ http://www.mmaweb.net/ http://www.servlets.net/index.html http://www.infinitehost.com/ I can't vouch for any of them. I would be interested in hearing feedback about these providers or other options. Hal -Original Message-From: Jeff Trent [mailto:[EMAIL PROTECTED]]Sent: Wednesday, May 30, 2001 12:12 PMTo: [EMAIL PROTECTED]Subject: Any hosting sites that use Struts? Anyone know of a hosting facility that offers Java web hosting + Struts?
problems with radio tag in html tag library
I'm having problems using radio buttons on my jsp. One would expect it to be very straight forward, and it is as long as I have just one group of radio buttons (i.e. the same property). But for some reason, as soon as I introduce another 'group' of radio buttons, it chokes at that tag. Has anybody ever had any similar experience with radio tags? What possibly am I doing wrong? This is what I have: [...in JSP...] tr td width=197 valign=top div align=leftMember Type:/div /td td width=442 valign=top p html:radio name=memberDetailsForm property=type value=MEMBER/ Member br html:radio name=memberDetailsForm property=type value=GUEST/Guestbr /p /td /tr tr td width=197 valign=top div align=leftWeb Enabled:/div /td td width=442 valign=top p html:radio name=memberDetailsForm property=web value=YES/ Yes br html:radio name=memberDetailsForm property=web value=NO/No br /p /td /tr [...] [...In memberDetailsForm] private String type; //with setters and getters private String web;
RE: getting a specific ArrayList element
Each element in the collection is exposed as a bean with name determined by the id attribute of the iterate tag. So inside your tag you can access that bean in a scriptlet or with the bean:write tag. The bean will be of type Object unless you use the type attribute of the iterate tag. -Original Message- From: Charlesworth, Chico [mailto:[EMAIL PROTECTED]] Sent: Wednesday, May 30, 2001 12:09 PM To: '[EMAIL PROTECTED]' Subject: getting a specific ArrayList element To iterate through a java.util.ArrayList i use logic:iterate struts tag and that works fine ... but which tag do i need to use and what attribute settings do i need to access a specific ArrayList element? for example if i wanted to access the second element of my ArrayList using jsp, i would just do: %MyObject o = (MyObject) myArrayList.get(1);% Any ideas? chico -- The content of this e-mail is confidential, may contain privileged material and is intended solely for the recipient(s) named above. If you receive this in error, please notify Software AG immediately and delete this e-mail. Software AG (UK) Limited Registered in England Wales 1310740 Registered Office: Hudson House, Hudson Way, Pride Park, Derby DE24 8HS
RE: getting a specific ArrayList element
excellent, missed that one, cheers chico -Original Message- From: David Winterfeldt [mailto:[EMAIL PROTECTED]] Sent: Wednesday, May 30, 2001 5:22 PM To: [EMAIL PROTECTED] Subject: Re: getting a specific ArrayList element The iterate tag has 'offset' and 'length' as attributes. You should be able to use both of these to retrieve a specific element. http://jakarta.apache.org/struts/struts-logic.html#iterate length - The maximum number of entries (from the underlying collection) to be iterated through on this page. This can be either an integer that directly expresses the desired value, or the name of a JSP bean (in any scope) of type java.lang.Integer that defines the desired value. If not present, there will be no limit on the number of iterations performed. [RT Expr] offset - The zero-relative index of the starting point at which entries from the underlying collection will be iterated through. This can be either an integer that directly expresses the desired value, or the name of a JSP bean (in any scope) of type java.lang.Integer that defines the desired value. If not present, zero is assumed (meaning that the collection will be iterated from the beginning. [RT Expr] David --- Charlesworth, Chico [EMAIL PROTECTED] wrote: To iterate through a java.util.ArrayList i use logic:iterate struts tag and that works fine ... but which tag do i need to use and what attribute settings do i need to access a specific ArrayList element? for example if i wanted to access the second element of my ArrayList using jsp, i would just do: %MyObject o = (MyObject) myArrayList.get(1);% Any ideas? chico -- The content of this e-mail is confidential, may contain privileged material and is intended solely for the recipient(s) named above. If you receive this in error, please notify Software AG immediately and delete this e-mail. Software AG (UK) Limited Registered in England Wales 1310740 Registered Office: Hudson House, Hudson Way, Pride Park, Derby DE24 8HS __ Do You Yahoo!? Get personalized email addresses from Yahoo! Mail - only $35 a year! http://personal.mail.yahoo.com/ -- The content of this e-mail is confidential, may contain privileged material and is intended solely for the recipient(s) named above. If you receive this in error, please notify Software AG immediately and delete this e-mail. Software AG (UK) Limited Registered in England Wales 1310740 Registered Office: Hudson House, Hudson Way, Pride Park, Derby DE24 8HS
Re: Question on the ActionForm design for dynamic data?
Here are two examples: logic:iterate id=product name=products html:multibox property=productsInstalled bean:write name=product property=id/ /html:multibox bean:write name=product property=name/br /logic:iterate This handles simple checkbox arrays. --- However, if you want to have rows of data (more then just checkbox's), I needed to do something like this: % int i = 0; % logic:iterate id=customerContact name=adminUpdateProfileForm property=customerContacts tr td class=smallFontinput type='text' name=customerContact[%= i %].contactName value=%= ((com.domain.app.CustomerContact)customerContact).getContactName() % size=20 maxlength=%= com.domain.app.CustomerContact.MAXLEN_CONTACTNAME %/td td class=smallFontinput type='text' name=customerContact[%= i %].contactTitle value=%= ((com.domain.app.CustomerContact)customerContact).getContactTitle() % size=30 maxlength=%= com.domain.app.CustomerContact.MAXLEN_CONTACTTITLE %/td td class=smallFontinput type='text' name=customerContact[%= i %].contactPhone value=%= ((com.domain.app.CustomerContact)customerContact).getContactPhone() % size=20 maxlength=%= com.domain.app.CustomerContact.MAXLEN_CONTACTPHONE %/td td class=smallFontinput type='text' name=customerContact[%= i %].contactEmail value=%= ((com.domain.app.CustomerContact)customerContact).getContactEmail() % size=20 maxlength=%= com.domain.app.CustomerContact.MAXLEN_CONTACTEMAIL %/td /tr % i++; % /logic:iterate Not the prettiest, but it works. - Original Message - From: [EMAIL PROTECTED] To: [EMAIL PROTECTED] Sent: Wednesday, May 30, 2001 12:39 PM Subject: Re: Question on the ActionForm design for dynamic data? Hi Jeff, Does this really work for you ? It works fine for me, to put the information to the screen, but the setting of the data back to the form on the return journey, does not work for me. If the automatic calling of the setters supposed to work? I have code as below ... But the call getRow.getElementAt(X).setCounterpartySelected(true); does not get called !!! In your example, are the text values in your form REALLY being updated ? % int i = 0; % logic:iterate name=CounterpartyFilterForm property=counterpartyFilterRows id=row logic:equal name=row property=counterpartySelected value=true INPUT type=checkbox checked name=row[%= i %].counterpartySelected /logic:equal logic:equal name=row property=counterpartySelected value=false INPUT type=checkbox name=row[%= i %].counterpartySelected /logic:equal bean:write name=row property=counterpartyDisplayName/BR % i++; % /logic:iterate Thanks in advance Andre Glauser. -- -- (1) Have a Vector / Collection of contributors (ie. getContributors()) belonging to your form. Inside that function, check to see if you need more rows by using code similar to the following: public Vector getCustomerContacts() CustomerContact lastCustomerContact = (CustomerContact)this.customerContacts.lastElement(); if (!lastCustomerContact.isEmpty()) // is this slot being used? this.customerContacts.addElement(new CustomerContact()); // always have one available slot at the end of the matrix return this.customerContacts; } (2) Do not use the reset() method. (3) On your JSP, use code like this: % int i = 0; % logic:iterate id=customerContact name=adminUpdateProfileForm property=customerContacts tr td class=smallFontinput type='text' name=customerContact[%= i %].contactName value=%= ((com.domain.project.CustomerContact)customerContact).getContactName() %/td td class=smallFontinput type='text' name=customerContact[%= i %].contactTitle value=%= ((com.domain.project.CustomerContact)customerContact).getContactTitle() %/td td class=smallFontinput type='text' name=customerContact[%= i %].contactPhone value=%= ((com.domain.project.CustomerContact)customerContact).getContactPhone() %/td /tr % i++; % /logic:iterate (4) Have a button on the form Add more rows in which case the form posts to itself and will cause a new row to be added at the bottom of the grid. Hope this help, Jeff
redirect errors back to initial frame
Hi everyone. I have the same problem that David Firmin posted back on the 8th March, but have not seen any solution posted. I have set the target frame in my html:form tag to be a different frame. However, if errors occur with the first filter page, the errors should be displayed in the original frame. Does anyone know how to do this? David, did you find any work around? Many thanks, Dave
extract key/value from HashMap
Hello. I have a bean (referred to as resultBean) that contains a HashMap (called properties) and would like to extract key/value pairs from this HashMap. Presently, I'm iterating through the HashMap with: logic:iterate id=element name=resultBean property=properties bean:write name=element property=key/ bean:write name=element property=value/ br / /logic:iterate The problem is that I'd like to be able to extract and display the values in an order other than the order the key/value pairs are returned through the iteration mechanism. (For example, supply a key explicitly and extract it's value.) Any ideas on how to accomplish this using tags? Thanks in advance.
RE: Multipart and IIS
Michael, Could you give more information on the nature of the failure? Are any error messages displayed? Also, what build of Struts are you using? There was a short period of time (a few days maybe) where this would be broken. If not already doing so, I'd suggest you try out a nightly build or beta 2. -Original Message- From: Michael Binette [mailto:[EMAIL PROTECTED]] Sent: Wednesday, May 30, 2001 12:18 PM To: Struts-User Subject: Multipart and IIS I just created a jsp page with a html:file tag on it, setup the ActionForm to accept the file, etc. The Action class gets called, I do what I need to do with the file and then return mapping.findForward(success). The mapping is returning /admin/index.jsp which is correct. In struts-config, I have redirect=true for the success forward. When doing this on my devl machine, using Tomcat as my http and jsp server, it works fine. When doing this on our production system with IIS 5.0 as my http and Tomcat 3.2.1 as the jsp server, it fails. The redirect is failing. If I change it to not redirect but forward, it works. Or, if I take out the enctype=multipart/form-data from the posting page, the redirect works as well. Has anyone seen this? Am I explaining it well enough? -- Thanks, Michael Binette
RE: redirect errors back to initial frame
Hi Dave, Can you set the target to be the parent of both frames and reload both frames every time? Another way of doing it would be to forget targeting the other frame and dynamically building the subframe from the error frame using DHTML's parent.targetedFrame.document.open(); parent.targetedFrame.document.write(HMTL for currently targeted window); parent.targetedFrame.document.close(); in the frame that is supposed to display the errors. --Abraham -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]] Sent: Wednesday, May 30, 2001 12:31 PM To: [EMAIL PROTECTED] Subject: redirect errors back to initial frame Hi everyone. I have the same problem that David Firmin posted back on the 8th March, but have not seen any solution posted. I have set the target frame in my html:form tag to be a different frame. However, if errors occur with the first filter page, the errors should be displayed in the original frame. Does anyone know how to do this? David, did you find any work around? Many thanks, Dave
RE: template and I18N
1. This was answered before. See following message:
http://www.mail-archive.com/struts-user@jakarta.apache.org/msg05207.html
2. IMHO avoid scriptlets.
Niall
-Original Message-
From: Gregor Rayman [mailto:[EMAIL PROTECTED]]
Sent: 30 May 2001 13:12
To: [EMAIL PROTECTED]
Subject: template and I18N
Hi all,
I've just started to use Struts and I have some questions:
1. How can I use the I18N features in the template tags?
In my template.jsp I've got the following tag:
titletemplate:get name='title'//title
In the page using this teplate the following:
template:put name='title' content='Kalkulation' direct='true'/
I'd like to replace the German text 'Kalkulation' with its
key e.g. 'app.title.calculation' Is there a nice way to do this?
2. How can I use use the I18N features in Struts directly
in Java Scriplets?
Sometimes I need the translated texts in scriplets. What is
the best way to access them?
Now I am using this aproach:
%
MessageResources resources =
(MessageResources) pageContext.getAttribute(
Action.MESSAGES_KEY, PageContext.APPLICATION_SCOPE);
Locale locale =
(Locale) pageContext.getAttribute(
Action.LOCALE_KEY, PageContext.SESSION_SCOPE);
if (null == locale) {
locale = request.getLocale();
}
String myText = resources.getMessage(locale, app.the.text,key);
%
Thanks for an answer
--
gR
Re: SV: Any hosting sites that use Struts?
Here are two other Java hosting sites: Imagine Internet Services - www.imagineit.com Web APP Cabaret - www.webappcabaret.com (free, Tripod-style ISP) -- Ted Husted, Husted dot Com, Fairport NY USA. -- Custom Software ~ Technical Services. -- Tel 716 737-3463. -- http://www.husted.com/about/struts/
RE: Multipart and IIS
I am using the 1.0 b1 build of Struts, not a nightly version or b2. I will give that a shot tomorrow. The error message I get in IE 5.5 is Server not Found, possible DNS error. Of course that is wrong because if I just type in the exact path it was redirecting to, it works fine. And if I forward instead of redirect to the same path, it works fine. If I then do a Refresh in my browser, A NullPointerException is thrown, not exactly sure where. -- Thanks, Michael Binette -Original Message- From: SCHACHTER,MICHAEL (HP-NewJersey,ex2) [mailto:[EMAIL PROTECTED]] Sent: Wednesday, May 30, 2001 4:12 PM To: '[EMAIL PROTECTED]' Subject: RE: Multipart and IIS Michael, Could you give more information on the nature of the failure? Are any error messages displayed? Also, what build of Struts are you using? There was a short period of time (a few days maybe) where this would be broken. If not already doing so, I'd suggest you try out a nightly build or beta 2. -Original Message- From: Michael Binette [mailto:[EMAIL PROTECTED]] Sent: Wednesday, May 30, 2001 12:18 PM To: Struts-User Subject: Multipart and IIS I just created a jsp page with a html:file tag on it, setup the ActionForm to accept the file, etc. The Action class gets called, I do what I need to do with the file and then return mapping.findForward(success). The mapping is returning /admin/index.jsp which is correct. In struts-config, I have redirect=true for the success forward. When doing this on my devl machine, using Tomcat as my http and jsp server, it works fine. When doing this on our production system with IIS 5.0 as my http and Tomcat 3.2.1 as the jsp server, it fails. The redirect is failing. If I change it to not redirect but forward, it works. Or, if I take out the enctype=multipart/form-data from the posting page, the redirect works as well. Has anyone seen this? Am I explaining it well enough? -- Thanks, Michael Binette
RE: Any hosting sites that use Struts?
I can recommend Servlets.net quite strongly. They recently switched to Resin 1.25 which works very well with Struts. I've successfully hosted a 50,000 session/month site with them. They are a small shop, but their support staff is responsive and they offer a plethora of services--CVS, MySQL, Postgres, c. In short, I would use them for anything that didn't require a dedicated box. Cheers, David -Original Message- From: Jeff Trent [mailto:[EMAIL PROTECTED]] Sent: Wednesday, May 30, 2001 12:12 PM To: [EMAIL PROTECTED] Subject: Any hosting sites that use Struts? Anyone know of a hosting facility that offers Java web hosting + Struts?
Re: ActionErrors inside perform() methods; application context; andi18n issues
This response is horrendously late because of my schedule, but the answers are still useful. On Mon, 23 Apr 2001, Regular Expression wrote: These are three unrelated questions that have arisen as I've learned Struts; I thought I'd lump them together for brevity's sake. I've perused quite a bit of documentation and never found answers to any of these, else I wouldn't resort to spamming the list. 1) While ActionForm.validate() can return some ActionErrors, it seems the only way an action itself can signal an error condition is to forward to an appropriate page--but even in this case, there is no standardized way to return descriptive error information. Might it not make sense to allow actions to somehow associate an ActionErrors with the ActionForward they return, and let the errors become available to the target? That way, an action can perform business logic-related validation from within its perform() method, and simply findForward(input) if it finds some error. Right now, I plan on remedying this by subclassing Action and providing a method which will stuff an ActionErrors into the request (with the appropriate attribute key) and forward to the input forward. This mechanism will break whenever someone decides to change the name of the key under which ActionErrors are stored. The example application does something like this, because there are some things you can check in a validate() method -- was the username entered? -- and some things you cannot -- does this username exist in the database?. Check out how the logon action (org.apache.struts.webapp.example.LogonAction) creates its own ActionErrors object, and then forwards to the input page, if it encounters any problems that were not found by the validate() method. 2) Is there some way for my lowly Actions to get access to the ServletContext under which they're running? I'd like to be able to get the values of application-context variables. You can call getServlet().getServletContext() to get the ServletContext for your web application. From there, you can access application attributes, call log() to write logging messages, and so on. 3) The user guide mentions that sessions may have a Locale associated with them, which will control the ResourceBundle used for things like the bean:message tag. But it fails to mention the name of the session key under which the Locale will be stored. Does anybody have an idea what the key is, and if it's subject to change between versions? To reference this in your code, you should use the symbolic string constant Action.LOCALE_STRING which resolves to the literal string value org.apache.struts.action.LOCALE. Craig McClanahan
Re: Resources clarification - is there a work around
Thanks Pete. However it just seems strange that Struts just offers one big resource file for each Local. I have developed 3 international sites, and I can safely say that when a set of resources are associated with a particular page it is much easier to manage than 1 resources for all pages. Has anyone hacked at the Struts code to get around this? I dont like the concatenating idea because it is too easy to have duplicates; and you probably want to use the same resource names anyway to keep a consistency. Anyone else have any ideas? - Original Message - From: Peter Alfors [EMAIL PROTECTED] To: [EMAIL PROTECTED] Sent: Wednesday, May 30, 2001 9:33 AM Subject: Re: Resources clarification :^) You could combine all of your property files during your build. This would allow you to have as many different property files as you want. However, you need to be careful that you do not have duplicate names across multiple files. HTH, Pete Jonathan wrote: Hello all. It appears that the ActionServlet points to a resources file, and not a ResourceBundle object. Is this true? The reason is that I would like to group in the same directory the following:1) a particular ActionForm2) the Action class that works with that ActionForm3) the resources (strings) that work with that ActionForm The reason is that it is much easier to manage the artifacts on a page by page basis.How can I do this properly ThanksJonathan
Re: jsp:useBean -vs- DefineTag
On Tue, 24 Apr 2001, Peter Alfors wrote: Hello all, Sorry this is a bit off topic...I posted this on the taglibs-user list but haven't had any luck. How do you make an object available to the page as a script variable in a taglib without having to use a getAttribute() method to retrieve it? The jsp:useBean taglib allows you to specify the name of an object to retrieve from the desired scope. From then on in the page, you can access this object using the specified id. I have tried placing the object in the pageContext (using the PAGE, REQUEST, and APPLICATION scope) However, you then need to do something like pageContext.getAttribute() to access it. Any ideas on how jsp:useBean is getting around this??? The jsp:useBean tag (and the bean:define tag as well) actually does two things: * It creates an attribute in whichever scope you tell it to. * It defines a scripting variable that can be used (in scriptlets and runtime expressions) as a local variable. In general, Struts based JSP pages tend not to use the scripting variable approach, because nearly every Struts custom tag supports the name (and optional scope) attributes that access these beans for you. In application logic, though -- such as in an Action -- calling the appropriate getAttribute() method is the only way to access these attributes. (The same is true when defining your own custom tags -- the getAttribute() and findAttribute() methods in PageContext are very commonly called.) Thanks, Pete Craig
Re: File upload/download design question
On Wed, 25 Apr 2001 [EMAIL PROTECTED] wrote:
I have a design question regarding file upload/download which is not
completely Struts related but I was hoping someone could provide some
suggestions. I have succeeded with the upload using the struts upload
package, and then I load the file into an Oracle BLOB field. Now I need to
get it back to the user if they want to view it.
I was planning to create an Action for processing the file download. The
user will click on a URL and pass in the ID of the file as a request
parameter to the Action (i.e. fileDownload.do?id=1234). The Action will
access a session EJB which then locates the requested file and returns it to
the Action as a File object. Here is where I need advice: what is the best
way to send this File back to the browser? Can I change the response type
to file somehow and stream this to the browser? Another option I thought
about was saving the file to a temp directory and then redirecting the
browser to this file. I would rather not write temp files if I don't have
to. Or, is there any functionality provided with struts for sending a file
back to the browser?
This is one of the cases where you might actually want to have an Action
create the response itself, instead of forwarding to a JSP page to do
it. The reason for this is that JSP pages aren't meant for binary output
(like a GIF image) -- but servlets can do this easily.
An example of an Action to do this might look like this:
byte buffer[] = ... load byte array from the database ...
int size = xxx; // Number of bytes to be sent
response.setContentLength(size);
response.setContentType(image/gif); // Or whatever is correct
ServletOutputStream stream = response.getOutputStream();
int sent = 0;
while (sent size) {
int count = stream.write(buffer, sent, size - sent);
sent += count;
}
stream.flush();
return (null);
Note that NULL is returned, instead of an ActionForward. This is the
signal to the controller servlet that the Action has already created the
response, so no forwarding is required.
Any suggestions greatly appreciated...
Thanks,
Bob
Craig
RE: Help me defend Struts taglibs!!!
I submitted an if/else and switch/case set of tags a couple of weeks ago under the Struts developer list. http://www.mail-archive.com/struts-dev@jakarta.apache.org/msg01372.html It uses three tags If, Then Else (based on existing Struts CompareTagBase logic) logic:if op=GreaterThan name=testbean property=doubleProperty value=400 logic:then Property Greater Than Value /logic:then logic:else Property Not Greater Than Value /logic:else /logic:if Does this come under the really ugly category or will you consider it for Struts? Niall -Original Message- From: Craig R. McClanahan [mailto:[EMAIL PROTECTED]] Sent: 31 May 2001 04:18 To: '[EMAIL PROTECTED]' Subject: RE: Help me defend Struts taglibs!!! On Thu, 26 Apr 2001, Scott Cressler wrote: One thing this argument might come down to is why custom tags, especially for if...else stuff (which, BTW, IMHO is not handled real well by the struts tags...would be nicer to have more flexibility in the conditions you can check and to have the ability to do else, rather than logic:equal.../logic:equallogic:notEqual.../logic:notEqual...but that's another discussion :-). In other words, if it is so easy to just slap some Java in their to do some conditional stuff, why use a clumsy tag. It turns out to be surprisingly difficult to come up with syntax for an else construct that is legal XML syntax and isn't really ugly. There's currently work going on in the JSP Standard Tag Library effort (JSR-052) to create tags that will eventually be known to all containters in the same way that tags like jsp:useBean are -- which will also deal with a lot of the performance related concerns. It looks like there will be reasonable ways to do switch and if-else type processing with them. In the mean time, we can reconsider adding an else capability in Struts 1.1, if someone can come up with a good syntax. Craig
Re: Correctly using token mechanism
It appears this never got answered, so better late than never ... On Sun, 29 Apr 2001, Jonathan Asbell wrote: After studying how the token mechanism works, I understand the following: 1) The token is a unique identifier (value) which may be found in the Session and Request, which is used with certain form submissions. 2) It is created, if it does not already exist, by an Action object that wants to use one, and its value is subsequently put in the session. 3) Its value is taken from Session by and used in conjunction with an org.apache.struts.taglib.html.FormTag as a hiden form field value. 4) When the form is submitted, the token's value in the submitted form request is compared to the value of the token sitting in the Session. If they are equal than the Action may be processed. QUESTION 1: In what situation should we use the token mechanism, as it seems that in the Struts example not all form actions need it. There's nothing stopping you from using it on every single request. However, the primary purpose is to catch the user that does things like the following: * Sumit a form * Hit the back arrow * Submit the form again If a user who does this will cause undesireable consequences (like adding two items to your shopping cart instead of one :-), then use the token. QUESTION 2: At what strategic point should the token be created for use, as it seems like one Action creates it and another Action looks for it and uses it? The token has to be created before the page you are trying to protect against multiple submits is displayed. My general pattern is to have one action that sets up the data for a form (editRegistration and editSubscription in the example app) and a separate action that actually processes the results (saveRegistration or saveSubscription). In such a case, I would set up the token in the editXxx action, and check it in the saveXxx action. Craig
Re: Solution: bean attributes not displaying (please comment)
Actually, the getAttribute() method returns the name of the attribute used
to store the form bean, not the mapping. The mapping is maintained
internally within the Struts controller, and is not saved under an
attribute.
Also, the form bean may be in request scope or session scope. This is
configurable in struts-config.xml.
--
Martin Cooper
- Original Message -
From: Thomas Peters [EMAIL PROTECTED]
To: [EMAIL PROTECTED]
Sent: Wednesday, May 30, 2001 8:45 AM
Subject: Re: Solution: bean attributes not displaying (please comment)
The struts documentation indicates that 'mapping.getAttribute()' returns
the
mapping name. In the case of the perform method in an Action instance,
this
is a passed in property.
Therefore, 'request.removeAttribute(mapping,getAttribute())' removes the
stored attribute from the request context where attribute is the name of
the
mapping.
This would have been stored in the request context in some previous step.
However, in the case that the mapping.getScope() doesn't return 'request'
it
is removed from the session scope.
- Original Message -
From: Martin Zaidel [EMAIL PROTECTED]
To: [EMAIL PROTECTED]
Sent: Wednesday, May 30, 2001 12:12 AM
Subject: Solution: bean attributes not displaying (please comment)
Got it: My problem resided in these lines of code in perform() (which I
copied from an Action class in the struts-example):
if (mapping.getAttribute() != null) {
if (request.equals(mapping.getScope()))
request.removeAttribute(mapping.getAttribute());
else
session.removeAttribute(mapping.getAttribute());
}
So my question to the list is: what exactly are these lines doing?
Thanks,
Martin
Thomas Peters wrote:
Thanks for your reply...
I guessed that was the problem. I don't see the new instance being
created
in my log file. I also have a fully working struts demo, which does
not
display this behavior. What's up with that?
Tom
- Original Message -
From: Martin Zaidel [EMAIL PROTECTED]
To: [EMAIL PROTECTED]
Sent: Tuesday, May 29, 2001 6:49 PM
Subject: Re: bean attributes not displaying - please help
I also have this problem, but alas, no solution (as yet). I've even
tried
in struts-config.xml to set the scope of the actions to session,
and
have explicitly
added the form to the session within the Action's perform(). I,
too,
can see the form properly populated. However, when the form's jsp
is
called, a new Form instance is instantiatedthus, the displayed
form
is blank.
Any ideas?
Thomas Peters wrote:
I have a jsp page called 'customer.jsp' with a class call
'CustomerForm' which extendes ActionForm.
I have cut and paste my mappings and listed them below.
The application flow is such, that I have a link with a URI of
/searchCustomers.do?action=Search. This action calls
'CustomerSearchAction' which initializes a 'CustomerForm' with
null
values for all the attributes except action, that's defaulted to
'Search'. That works fine.
When the end user completes and submits the 'CustomerForm' form, I
construct a query that returns a list of customers matching the
submitted criteria. 'Customers' is a class which contains a
Hashtable
of 'Customer' objects. This is accomplished with
'CustomerListAction'
and forwards to 'customers.jsp' which presents the results in a
list.
I have a 'LinkCustomerTag' class which builds links within the
iteration of 'customers' on the 'customers.jsp' page. The link
looks
like this: '/editCustomer.do?action=EditcustNum=10' where
'custNum=10' dynamically changes throughout the iteration based on
the
current 'customer'. This works fine too.
I select one of the links in the list which maps to
'/editCustomer'
(see below) and calls the 'CustomerEditAction' class where I copy
the
properties to the instance of 'CustomerForm' and 'forward' to the
'customer.jsp'. This is where my problem is.
** The form is blank. **
I have lotts of comments in my code and can see that
'PropertyUtils.copyProrerties(customerForm, customer)' is getting
called. I even modified the 'PropertyUtils' class to log the
properties being copied within the 'Enumeration' in the
'copyProperties' method. You can see these values being copied
into
the 'ActionForm' but when the 'forward' is called and the
'customer.jsp' is displayed, it is empty.
Please help...
struts-config.xml
!-- == Form Bean Definitions
=== --
!-- Customer form bean --
form-bean name=customerForm
Re: problem with using forms
The problem is in your JSP page. First, you are closing the form tag immediately. That's why you are seeing the error - because the other tags are not, in fact, in the form. Second, you have the wrong closing tag. Try this: html:form action=test.do %-- No '/' character here --% test: html:text property=test/br html:submit value=OK/ /html:form %-- Use the correct closing tag here --% Hope this helps. -- Martin Cooper - Original Message - From: René Boere [EMAIL PROTECTED] To: [EMAIL PROTECTED] Sent: Wednesday, May 30, 2001 2:58 AM Subject: problem with using forms Hi, i am trying to create a jsp page with a form on it using the Struts framwork. The problem is that i get an exception when i try to load the jsp page. The error is the following: May 30, 2001 11:53:31 AM GMT+02:00 Error HTTP [WebAppServletContext(66629 69,form)] Root cause of ServletException javax.servlet.jsp.JspException: Cannot find bean org.apache.struts.taglib.html.B EAN in scope null at org.apache.struts.util.RequestUtils.lookup(RequestUtils.java:486) at org.apache.struts.taglib.html.BaseFieldTag.doStartTag(BaseFieldTag.ja va:188) at jsp_servlet._form._jspService(_form.java:127) at weblogic.servlet.jsp.JspBase.service(JspBase.java:27) at weblogic.servlet.internal.ServletStubImpl.invokeServlet(ServletStubIm pl.java:213) at weblogic.servlet.internal.ServletStubImpl.invokeServlet(ServletStubIm pl.java:246) at weblogic.servlet.internal.WebAppServletContext.invokeServlet(WebAppSe rvletContext.java:1265) at weblogic.servlet.internal.ServletRequestImpl.execute(ServletRequestIm pl.java:1622) at weblogic.kernel.ExecuteThread.execute(ExecuteThread.java:137) at weblogic.kernel.ExecuteThread.run(ExecuteThread.java:120) I have also included the used files in this message. I have no idea what causes this error and i hope anyone can help me with this problem. Greetings, Rene Boere web.xml *** web-app servlet servlet-nameaction/servlet-name servlet-classorg.apache.struts.action.ActionServlet/servlet-class init-param param-nameconfig/param-name param-value/WEB-INF/struts-config.xml/param-value /init-param init-param param-namevalidate/param-name param-valuetrue/param-value /init-param load-on-startup1/load-on-startup /servlet servlet-mapping servlet-nameaction/servlet-name url-pattern*.do/url-pattern /servlet-mapping welcome-file-list welcome-fileform.jsp/welcome-file /welcome-file-list taglib taglib-uri/WEB-INF/struts-html.tld/taglib-uri taglib-location/WEB-INF/struts-html.tld/taglib-location /taglib /web-app *** 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-beans form-bean name=TestForm type=form.TestForm/ /form-beans action-mappings action path=/test type=form.TestAction name=TestForm forward name=test path=/test.jsp / /action /action-mappings /struts-config *** form.jsp *** %@page language=java contentType=text/html% %@ taglib uri=/WEB-INF/struts-html.tld prefix=html % html:form action=test.do/ test: html:text property=test/br html:submit value=OK/ /form ***
Re: use JSP variable as a value of property in html:select... tag
I think you just need a space on each side of 'var'. Try this: html:select property=%= var % size=1 Hope this helps. -- Martin Cooper - Original Message - From: someil [EMAIL PROTECTED] To: [EMAIL PROTECTED] Sent: Wednesday, May 30, 2001 5:42 AM Subject: use JSP variable as a value of property in html:select ... tag Hi, I would like use an expression such as : html:select property=%= var% size=1 but I can't do this. The error obtained is : Attribute value should be quoted So, I tried : html:select property=%= var% size=1 then it results a new error : Attribute % has no value that is the problem? How can I consider a JSP variable for an attribute value? Thanks for your response ... - Cyril -
Re: Resources clarification - is there a work around
Personally, I would have thought that per-page resources would introduce more problems than they solve. If there is text that needs to be consistent across pages, it's much better to have it in only one place. Even if keys are the same across pages, there is no assurance that the text will be. And when it comes to translation time, all those strings will have to be translated multiple times - and perhaps not always the same way, especially with multiple translators working on a large app. Just my 2 cents... -- Martin Cooper - Original Message - From: Jonathan Asbell [EMAIL PROTECTED] To: [EMAIL PROTECTED] Sent: Wednesday, May 30, 2001 8:01 PM Subject: Re: Resources clarification - is there a work around Thanks Pete. However it just seems strange that Struts just offers one big resource file for each Local. I have developed 3 international sites, and I can safely say that when a set of resources are associated with a particular page it is much easier to manage than 1 resources for all pages. Has anyone hacked at the Struts code to get around this? I dont like the concatenating idea because it is too easy to have duplicates; and you probably want to use the same resource names anyway to keep a consistency. Anyone else have any ideas? - Original Message - From: Peter Alfors [EMAIL PROTECTED] To: [EMAIL PROTECTED] Sent: Wednesday, May 30, 2001 9:33 AM Subject: Re: Resources clarification :^) You could combine all of your property files during your build. This would allow you to have as many different property files as you want. However, you need to be careful that you do not have duplicate names across multiple files. HTH, Pete Jonathan wrote: Hello all. It appears that the ActionServlet points to a resources file, and not a ResourceBundle object. Is this true? The reason is that I would like to group in the same directory the following:1) a particular ActionForm2) the Action class that works with that ActionForm3) the resources (strings) that work with that ActionForm The reason is that it is much easier to manage the artifacts on a page by page basis.How can I do this properly ThanksJonathan
Re: Suggestion for Inclusion in HTML Bean
If what you want is the name of the form appearing in the output stream, there is a way to do that (albeit a little unconventional, I suppose): bean:write name='org.apache.struts.taglib.html.FORM' property='name'/ The value of the 'name' attribute here is the value of the constant org.apache.struts.taglib.html.FORM_KEY, which is where the FormTag object itself is stored between html:form and /html:form. If you want a bean that has that value, you can do something similar with bean:define. Hope this helps. -- Martin Cooper - Original Message - From: Jeff Trent [EMAIL PROTECTED] To: [EMAIL PROTECTED] Sent: Monday, May 07, 2001 11:12 AM Subject: Suggestion for Inclusion in HTML Bean Can I suggest to any Struts developers listening that a new form tag called static be added which will simply return the current form value as static text...
Re: Potential Security Flaw in Struts MVC
On Mon, 7 May 2001, Jeff Trent wrote:
Ah, this maybe a problem in the way I've adapted Struts. I reflect all UserForm
method calls directly into the contained User object owned by the UserForm. So for
instance, I have
public class UserForm extends ActionsForm
{
protected User user;
...
public String getName()
{
return user.getName();
}
public void setName(String name)
{
user.setName(name);
}
...
}
Now can you begin to see my original concern? Maybe I need to
separate the model from the form a little more than what I have.
This is where I can step in (better late than never :-) and point out that
this is *not* the recommended design pattern for form beans. They really
should be independent, and you really should decide what properties should
be copied from UserForm to User in your Action (or the business logic that
it calls).
The important issue here -- and it's not unique to Struts, the issue is
common to all web application environments -- is that you have absolutely
zero control over what the client decides to send you. For example, if
you rely on client side JavaScript for field validation, what happens when
your client turns JavaScript off? You get garbage input, so you should
always be paranoid and validate (again) on the server side.
In the case at hand, nothing stops your user from logging on (so your
security checks won't catch anything) and then hand typing a URL with
query string parameters that maliciously or accidentally try to change
things in the system. If the user is successful at doing this, it's shame
on the app developer for listening to request parameters that you
shouldn't.
Of course, you need to take other defensive measures as well (like using
the transaction control support to avoid accidental or malicious resubmits
of the same data).
For those of you going to JavaOne, I'm hosting a BOF on Thursday night at
7pm (BOF #1291) called Approaches to User Authentication and Access
Control in Web Applications. This discussion has given me some
additional topical material to make sure that we cover.
- jeff
Craig McClanahan
RE: Potential Security Flaw in Struts MVC
On Tue, 8 May 2001, Manabendra Sarkar wrote: but if i use external security mechanism, will it be dynamic? i mean to say, if the admin wants to change his/her password from the application (using admin interface), how can he/she do that without restarting the server? There is no global answer to that question, because it depends on how your security information is looked up. Just as an example of what's possible, consider how Tomcat 4.0 implements container managed security. The default mechanism is a simple XML file that is read once when the app starts up, so any changes require an application restart. However, you can easily configure Tomcat to look up users and roles in a database (via JDBC) or a directory server (via JNDI). In these cases, changes you make to the usernames, their passwords, and their security roles *are* dynamically recognized, because they are looked up every time the user logs on. Craig McClanahan
Re: Struts on Tomcat 4.0-b3
On Wed, 2 May 2001, Nanduri, Amarnath wrote: Hi Guys, I was trying to use Struts on Tomcat 4.0 Beta 3. I am getting the following errors when starting up Tomcat. Anybody out there can point out my problem ? Thanks a lot. cheers, Amar.. As the error message points out, it's inside the Crimson parser, and it's just a warning that the JIT cannot optimize this piece of Java bytecode for some reason. It's been fixed in the 1.3.1 releases that I'm currently using. Craig
Re: unload database
On Wed, 2 May 2001, Ying Teng wrote: How do I unload database to its persistent storage version? If we are running directly out of a WAR file, saving cannot occur. How do we make the save possible? The short answer is you can't. Remember, that the whole point of this example is to focus on the Struts tags and the way that actions works. In a real life application, you'd be talking to a database instead. Thanks. Ying Craig
Re: Usage of include or forward in Action definition
On Thu, 3 May 2001, James Howe wrote: Could someone explain a little more about when you would want to use either the include or forward attributes of the action tag (used in struts-config.xml) instead of the type attribute? An example or two would go a long way to clarifying when and why someone might want to use either include or forward. Thanks. The basic idea is that you might have existing logic, implemented as a servlet, that you want to integrate into a Struts-based application. You can still take advantage of the automatic form bean handling and so on, but then utilize the existing servlet instead of (or in addition to) writing an Action. A more radical use that I'm experimenting with a little is the idea of scripting an action -- in a JSP page (?!?!?!). These pages would not actually create any output -- but they would allow application developers who are not heavy duty Java programmers to create Actions out of existing custom tag libraries (including our very own bean and logic tags). Such a business logic page would then forward to a different JSP page for the presentation, just as you would from an Action that is coded in Java. Craig McClanahan
Re: Potential Security Flaw in Struts MVC
I've sure my ears will be ringing at home that night :^)
- Original Message -
From: Craig R. McClanahan [EMAIL PROTECTED]
To: [EMAIL PROTECTED]
Sent: Thursday, May 31, 2001 1:01 AM
Subject: Re: Potential Security Flaw in Struts MVC
On Mon, 7 May 2001, Jeff Trent wrote:
Ah, this maybe a problem in the way I've adapted Struts. I reflect all
UserForm method calls directly into the contained User object owned by the
UserForm. So for instance, I have
public class UserForm extends ActionsForm
{
protected User user;
...
public String getName()
{
return user.getName();
}
public void setName(String name)
{
user.setName(name);
}
...
}
Now can you begin to see my original concern? Maybe I need to
separate the model from the form a little more than what I have.
This is where I can step in (better late than never :-) and point out that
this is *not* the recommended design pattern for form beans. They really
should be independent, and you really should decide what properties should
be copied from UserForm to User in your Action (or the business logic that
it calls).
The important issue here -- and it's not unique to Struts, the issue is
common to all web application environments -- is that you have absolutely
zero control over what the client decides to send you. For example, if
you rely on client side JavaScript for field validation, what happens when
your client turns JavaScript off? You get garbage input, so you should
always be paranoid and validate (again) on the server side.
In the case at hand, nothing stops your user from logging on (so your
security checks won't catch anything) and then hand typing a URL with
query string parameters that maliciously or accidentally try to change
things in the system. If the user is successful at doing this, it's shame
on the app developer for listening to request parameters that you
shouldn't.
Of course, you need to take other defensive measures as well (like using
the transaction control support to avoid accidental or malicious resubmits
of the same data).
For those of you going to JavaOne, I'm hosting a BOF on Thursday night at
7pm (BOF #1291) called Approaches to User Authentication and Access
Control in Web Applications. This discussion has given me some
additional topical material to make sure that we cover.
- jeff
Craig McClanahan
Re: regd. action classes --- please help
On Fri, 4 May 2001, Manabendra Sarkar wrote:
Hi All,
is there init() and destroy() like methods in Action class so that we
can be sure that those methods will always be called
by the action servlet?
actually i need to aquire some resources (like database connection)
and initialize the action class. i want to hold thoise resources
through out the life of the action object. i want to release those resources
only when i don't need the action object anymore.
please help me in doing this. any other procedure to do this except
init() destroy() ?
The Javadocs for the org.apache.struts.action.Action class tell you what
you can expect with regards to Action lifecycle:
When an Action instance is first created, the controller
servlet will call setServlet() with a non-null argument
to identify the controller servlet instance to which this
Action is attached. When the controller servlet is to be
shut down (or restarted), setServlet() will be called with
a null argument, which can be used to clean up any allocated
resources in use by this Action.
So, all you need to do in your Action is override the setServlet() method:
public void setServlet(ActionServlet servlet) {
if (servlet != null) {
super.setServlet(servlet);
... perform init() activities ...
} else {
... perform destroy() activities ...
super.setServlet(null);
}
}
Regards
Manabendra Sarkar
Craig McClanahan
