New Windows, Struts, IE 5 and sessions dying
Summary: Any known bugs and workarounds with Multiple Windows in IE5, Servlet Sessions and Struts 1.0b1? Detailed Version: We are using Struts 1.0b1 and Tomcat J2EE form-based login security on our website. The user requests a protected page and is automatically redirected by Tomcat to the login page from which they login and enter the site. The password and username gets stored in a session automatically by Tomcat for use in further protected pages. No problem there - it works perfectly. However when we open a new window using the javascript functions window.open(url), window.showModelessDialog(url) or window.showModalDialog(url), things go badly wrong. The moment the new window is opened the user has to log in again in the main window before they can do anything else. Had a look at the HttpServletRequest and the the j_username and j_password variables appear to be deleted from the session attributes the moment you open the new window, but the cookie with the session id still appears to be present. After considerable effort we have narrowed the problem down to Struts itself. If we open the new window with a url that is just a static file (html,gif etc) the session doesn't get lost. If we open the new window with a url that is a jsp file that doesn't involve struts once again everything continues working fine. But the moment we open the new window with a struts url (ie *.do) the session gets lost in the main window. Has anyone else had this problem? Any known bugs in Struts 1.0b1 that we should be aware of? Any known solutions/workarounds? Help! Thanks, Graeme.
Re: New Windows, Struts, IE 5 and sessions dying
At 07:04 PM 1/06/01 +1200, you wrote: Summary: Any known bugs and workarounds with Multiple Windows in IE5, Servlet Sessions and Struts 1.0b1? A few things to note. Have a look to see if the redirect is forcing :80 (port 80) onto the end of the URL, this can cause the session get lost in the ether. Upgrade to struts-b2 and it'll go away. Another thing to note is that on NT you can have each IE run in a separate process, which gives it its own set of cookies, which will also loose the session value. I think it's probably the first one though, as you'd be using html:rewrite / to generate the URL for the javascript, and up until struts-b2 it would add the port into the address and confuse the browser. This happens in Netscape Navigator as well. -- Kumera - a new Open Source Content Management System for small to medium web sites written in Perl and using XML http://www.cyber4.org/kumera/index.html
RE: New installation - NoSuchMethodError
I have the same config without Apache server and any problem! How did U have install struts_example application on tomcat ? Have U the same problem with other struts application ? - cyril - -Message d'origine- De : Marcelo Romaniuc [mailto:[EMAIL PROTECTED]] Envoye : vendredi 1 juin 2001 08:07 A : [EMAIL PROTECTED] Objet : RE: New installation - NoSuchMethodError I did so and the error is still there... What struts.jar has to do with the error messages... all of the messages refers to tomcat and jasper classes, not struts? Please, help me!!! Thanks, --- Vinod Shintre [EMAIL PROTECTED] wrote: point ur path/classpath to struts.jar if its not under root/lib usually u wd have it under ur webapps/WEB-INF/classes/lib hope that works vin -Original Message- From: Marcelo Romaniuc [mailto:[EMAIL PROTECTED]] Sent: Thursday, May 31, 2001 3:05 PM To: [EMAIL PROTECTED] Subject: New installation - NoSuchMethodError Hi, I`ve just finished the installation of Struts 1.0b2. I'm using Tomcat 3.2.1 and Apache. When I call /struts-example/logon.jsp I receive the following error back: Anyone has had such problem ? How to solve ? Thanks, Marcelo R. Romaniuc Location: /struts-example/logon.jsp Internal Servlet Error: javax.servlet.ServletException at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:399) at javax.servlet.http.HttpServlet.service(HttpServlet.java:865) at org.apache.tomcat.core.ServletWrapper.doService(ServletWrapper.java:404) at org.apache.tomcat.core.Handler.service(Handler.java:286) at org.apache.tomcat.core.ServletWrapper.service(ServletWrapper.java:372) at org.apache.tomcat.core.ContextManager.internalService(ContextManager.java:79 7) at org.apache.tomcat.core.ContextManager.service(ContextManager.java:743) at org.apache.tomcat.service.connector.Ajp12ConnectionHandler.processConnection (Ajp12ConnectionHandler.java:166) at org.apache.tomcat.service.TcpWorkerThread.runIt(PoolTcpEndpoint.java:416) at org.apache.tomcat.util.ThreadPool$ControlRunnable.run(ThreadPool.java:498) at java.lang.Thread.run(Thread.java:484) Root cause: java.lang.NoSuchMethodError at org.apache.jasper.compiler.TagLibraryInfoImpl.createAttribute(TagLibraryInfo Impl.java:524) at org.apache.jasper.compiler.TagLibraryInfoImpl.createTagInfo(TagLibraryInfoIm pl.java:432) at org.apache.jasper.compiler.TagLibraryInfoImpl.parseTLD(TagLibraryInfoImpl.ja va:385) at org.apache.jasper.compiler.TagLibraryInfoImpl.(TagLibraryInfoImpl.java:233) at org.apache.jasper.compiler.JspParseEventListener.handleDirective(JspParseEve ntListener.java:706) at org.apache.jasper.compiler.DelegatingListener.handleDirective(DelegatingList ener.java:116) at org.apache.jasper.compiler.Parser$Directive.accept(Parser.java:215) at org.apache.jasper.compiler.Parser.parse(Parser.java:1077) at org.apache.jasper.compiler.Parser.parse(Parser.java:1042) at org.apache.jasper.compiler.Parser.parse(Parser.java:1038) at org.apache.jasper.compiler.Compiler.compile(Compiler.java:182) at org.apache.jasper.servlet.JspServlet.doLoadJSP(JspServlet.java:462) at org.apache.jasper.servlet.JasperLoader12.loadJSP(JasperLoader12.java:146) at org.apache.jasper.servlet.JspServlet.loadJSP(JspServlet.java:433) at org.apache.jasper.servlet.JspServlet$JspServletWrapper.loadIfNecessary(JspSe rvlet.java:152) at org.apache.jasper.servlet.JspServlet$JspServletWrapper.service(JspServlet.ja va:164) at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:318) at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:391) at javax.servlet.http.HttpServlet.service(HttpServlet.java:865) at org.apache.tomcat.core.ServletWrapper.doService(ServletWrapper.java:404) at org.apache.tomcat.core.Handler.service(Handler.java:286) at org.apache.tomcat.core.ServletWrapper.service(ServletWrapper.java:372) at org.apache.tomcat.core.ContextManager.internalService(ContextManager.java:79 7) at org.apache.tomcat.core.ContextManager.service(ContextManager.java:743) at org.apache.tomcat.service.connector.Ajp12ConnectionHandler.processConnection (Ajp12ConnectionHandler.java:166) at org.apache.tomcat.service.TcpWorkerThread.runIt(PoolTcpEndpoint.java:416) at org.apache.tomcat.util.ThreadPool$ControlRunnable.run(ThreadPool.java:498) at java.lang.Thread.run(Thread.java:484) __ Do You Yahoo!? Get personalized email addresses from Yahoo! Mail - only $35 a year! http://personal.mail.yahoo.com/ __ Do You Yahoo!? Get personalized email addresses from Yahoo! Mail - only $35 a year! http://personal.mail.yahoo.com/
RE: Potential Security Flaw in Struts MVC
Hi Kumera, If you want to check at the form level, have you considered using a custom tag, such as the app:checkLogon tag used in the example app provided with struts. It's perhaps not the best way as others have pointed out on this list, but it seems to fit your requirements. Jon. -Original Message- From: Jim Richards [mailto:[EMAIL PROTECTED]] Sent: 31 May 2001 09:21 To: [EMAIL PROTECTED] Subject: Re: Potential Security Flaw in Struts MVC At 11:53 PM 30/05/01 -0700, you wrote: A good way of removing the bucketloads :-} from your Action classes is to subclass ActionServlet and implement processActionPerform to do the logon check. It's not just for login though, that was the example I used, every action that generates a form needs to do this. Mostly it is checking against URL hacking. -- Kumera - a new Open Source Content Management System for small to medium web sites written in Perl and using XML http://www.cyber4.org/kumera/index.html
Tag Iterate !!!
Hi all,
I try to use the tag iterate (logic) but I can't. I haven't success.
I am working on Windows NT with tomcat 3.2 and struts 1.0b-2.
I try to pass an array of object ( a personnal client class). but when a try
to access a property I have this error :
javax.servlet.ServletException: Cannot find bean client in scope null
at
org.apache.jasper.runtime.PageContextImpl.handlePageException(PageContextImp
l.java:459)
at
_0002fClientList_0002ejspClientList_jsp_55._jspService(_0002fClientList_0002
ejspClientList_jsp_55.java:214)
What I have to ?? I have to specify a scope ???
Here you are the code of the .jsp , java class wich put the parameter and
client.class.
.jsp :
...
body bgcolor=white
logic:iterate id=client name=test
bean:write name=client property=pmclient/
/logic:iterate
/body
...
Java class :
--
Client test[] = clients.getClients();
servlet.log(nmclient from clients : + test[i].getNmclient(), 1); // test
... it's working
HttpSession session = request.getSession();
session.setAttribute(test, test);
return (mapping.findForward(success));
Client class :
public class Client {
private String nmclient = ;
private String pmclient = ;
private long cdclient;
public Client() {
}
public String getNmclient() {
return nmclient;
}
public void setNmclient(String newNmclient) {
nmclient = newNmclient;
}
public String getPmclient() {
return pmclient;
}
public void setPmclient(String newPmclient) {
pmclient = newPmclient;
}
public long getCdclient() {
return cdclient;
}
public void setCdclient(long newCdclient) {
cdclient = newCdclient;
}
}
Thanks in advance for your help.
Geoffrey...
Any body trying struts wit weblogic?
Hi i need help in using struts in weblogic .. pls anybody help Ameer Hussain SSs/w engineerYashaa Infotech Pvt.Ltd.http://www.yashaa.com
RE: Any body trying struts wit weblogic?
What kind of help you want? Regards, Manoj -Original Message-From: ameer [mailto:[EMAIL PROTECTED]]Sent: Friday, June 01, 2001 3:37 PMTo: StrutsSubject: Any body trying struts wit weblogic? Hi i need help in using struts in weblogic .. pls anybody help Ameer Hussain SSs/w engineerYashaa Infotech Pvt.Ltd.http://www.yashaa.com
RE: Tag Iterate !!!
hi
probably change the case of 'c' in client.
the class has Capiltal 'c' while in JSP you are accessing small 'c'.
:)
ash
-Original Message-
From: Geoffrey Van Nuffelen [mailto:[EMAIL PROTECTED]]
Sent: Friday, June 01, 2001 3:24 PM
To: Struts-User (E-Mail)
Subject: Tag Iterate !!!
Hi all,
I try to use the tag iterate (logic) but I can't. I haven't success.
I am working on Windows NT with tomcat 3.2 and struts 1.0b-2.
I try to pass an array of object ( a personnal client class). but when a try
to access a property I have this error :
javax.servlet.ServletException: Cannot find bean client in scope null
at
org.apache.jasper.runtime.PageContextImpl.handlePageException(PageContextImp
l.java:459)
at
_0002fClientList_0002ejspClientList_jsp_55._jspService(_0002fClientList_0002
ejspClientList_jsp_55.java:214)
What I have to ?? I have to specify a scope ???
Here you are the code of the .jsp , java class wich put the parameter and
client.class.
.jsp :
...
body bgcolor=white
logic:iterate id=client name=test
bean:write name=client property=pmclient/
/logic:iterate
/body
...
Java class :
--
Client test[] = clients.getClients();
servlet.log(nmclient from clients : + test[i].getNmclient(), 1); // test
... it's working
HttpSession session = request.getSession();
session.setAttribute(test, test);
return (mapping.findForward(success));
Client class :
public class Client {
private String nmclient = ;
private String pmclient = ;
private long cdclient;
public Client() {
}
public String getNmclient() {
return nmclient;
}
public void setNmclient(String newNmclient) {
nmclient = newNmclient;
}
public String getPmclient() {
return pmclient;
}
public void setPmclient(String newPmclient) {
pmclient = newPmclient;
}
public long getCdclient() {
return cdclient;
}
public void setCdclient(long newCdclient) {
cdclient = newCdclient;
}
}
Thanks in advance for your help.
Geoffrey...
RE: Any body trying struts wit weblogic?
There have been many discussions, some quite recently, about setting up Struts under various versions of weblogic. Take a look through the mailing list archive to see if you can find what you're after there. [EMAIL PROTECTED]/ http://www.mail-archive.com/struts-user@jakarta.apache.org/ HTH Dave -Original Message- From: Manoj Deb [mailto:[EMAIL PROTECTED]] Sent: 01 June 2001 11:01 To: [EMAIL PROTECTED] Subject: RE: Any body trying struts wit weblogic? What kind of help you want? Regards, Manoj -Original Message- From: ameer [mailto:[EMAIL PROTECTED]] Sent: Friday, June 01, 2001 3:37 PM To: Struts Subject: Any body trying struts wit weblogic? Hi i need help in using struts in weblogic .. pls anybody help Ameer Hussain SS s/w engineer Yashaa Infotech Pvt.Ltd. http://www.yashaa.com http://www.yashaa.com/ The information in this email is confidential and is intended solely for the addressee(s). Access to this email by anyone else is unauthorised. If you are not an intended recipient, you must not read, use or disseminate the information contained in the email. Any views expressed in this message are those of the individual sender, except where the sender specifically states them to be the views of Capco. http://www.capco.com ***
Re: Using Javascript to cancel submit?
If you want the JavaScript to cancel the submit, you need to return false somewhere. Struts can also watch for these in the Action, either using the isCancel() method, or by looking at the label of the button pressed. Struts doesn't write the HTML for tables, and could not affect the sizes of your table rows, except to the extent that the browser adjusts the row sizes to fit the instant data. The Struts custom tags (like all others) simply substitute standard HTML for the custom tags on their way to the browser, and leaves everything else alone. You can view the source to see what the browser sees. Struts isn't otherwise involved in how your page renders. -- Ted Husted, Husted dot Com, Fairport NY USA. -- Custom Software ~ Technical Services. -- Tel 716 737-3463. -- http://www.husted.com/about/struts/
Error when deploying to SilverStream application server
Hi When I deploy a war file to my app. server I get the following error message: [exec] Catastrophic error: /jsp/accomodation_application_step2.jsp: An unexpected fatal exception 'String index out of range: 0' occured. In the jsp page I use the struts-html.tld tag lib and these are the tags that I use: 1. html:form action=accomodation_application_step2.do 2. html:text property=fromday size=1 maxlength=2 styleClass=boxboligdato20/ 3. html:select property=nationality styleClass=boxboligsok254 html:option value=valnull.../html:option /html:select 4.html:hidden property=submitter value=/ Thanks in advance 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: Any body trying struts wit weblogic?
Ive got it working under WL 6. If you want to know anything just email me personally at [EMAIL PROTECTED] - Original Message - From: Firmin David [EMAIL PROTECTED] To: [EMAIL PROTECTED] Sent: Friday, June 01, 2001 6:26 AM Subject: RE: Any body trying struts wit weblogic? There have been many discussions, some quite recently, about setting up Struts under various versions of weblogic. Take a look through the mailing list archive to see if you can find what you're after there. [EMAIL PROTECTED]/ http://www.mail-archive.com/struts-user@jakarta.apache.org/ HTH Dave -Original Message- From: Manoj Deb [mailto:[EMAIL PROTECTED]] Sent: 01 June 2001 11:01 To: [EMAIL PROTECTED] Subject: RE: Any body trying struts wit weblogic? What kind of help you want? Regards, Manoj -Original Message- From: ameer [mailto:[EMAIL PROTECTED]] Sent: Friday, June 01, 2001 3:37 PM To: Struts Subject: Any body trying struts wit weblogic? Hi i need help in using struts in weblogic .. pls anybody help Ameer Hussain SS s/w engineer Yashaa Infotech Pvt.Ltd. http://www.yashaa.com http://www.yashaa.com/ The information in this email is confidential and is intended solely for the addressee(s). Access to this email by anyone else is unauthorised. If you are not an intended recipient, you must not read, use or disseminate the information contained in the email. Any views expressed in this message are those of the individual sender, except where the sender specifically states them to be the views of Capco. http://www.capco.com ***
RE: Error when deploying to SilverStream application server
Hi Jan, when u r using these tag lib under silverstream donot comment the struts tags using html style comments like !-- html:hidden property=submitter value=/ -- this throw the index of range exception. if it is not help full send me the whole code. Thanks Tanver -Original Message- From: Jan Fredrik Øveraasen [SMTP:[EMAIL PROTECTED]] Sent: Friday, June 01, 2001 8:37 AM To: STRUTS (E-mail) Subject: Error when deploying to SilverStream application server Hi When I deploy a war file to my app. server I get the following error message: [exec] Catastrophic error: /jsp/accomodation_application_step2.jsp: An unexpected fatal exception 'String index out of range: 0' occured. In the jsp page I use the struts-html.tld tag lib and these are the tags that I use: 1.html:form action=accomodation_application_step2.do 2.html:text property=fromday size=1 maxlength=2 styleClass=boxboligdato20/ 3.html:select property=nationality styleClass=boxboligsok254 html:option value=valnull.../html:option /html:select 4. html:hidden property=submitter value=/ Thanks in advance 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: Any body trying struts wit weblogic?
Hi, well not with weblogic?, but anyway i would like to add im utilising Netbeans v3.2 ( Jarkarta-tomcat-3.2.1 container) and i have experienced problems with the internal web browser as with both struts apps and ora apps i continually recieve the following error. ora/ch5/userinfo1.jsp [2:0] Unable to open taglibrary /orataglib : Could not locate TLD META-INF/taglib.tld Errors compiling userin Thus i have to use Netscape browser with means i not utilising the full IDE and it's getting under my skin as i have tried a few suggestions but no success. note i have tried the linkage problems concerning orataglib.jar and orataglib.tld Thus i refer do the directive as % taglib uri ="/orataglib" prefix="ora"%> and eusured that web.xml is configured. but to no avail. any suggestions welcomed- using struts now and always excellent documentation and examples. > *** > -- The views expressed by the sender of this message don't necessarily represent those of Brecon Beacons National Park Authority. This message is intended for the addressee(s) only and is sent in confidence; if you receive it in error, please can you let us know (at [EMAIL PROTECTED]) and then destroy all copies. Nid yw'r farn a fynegir gan anfonwr y neges hon o anghenraid yn adlewyrchu barn Awdurdod Parc Cenedlaethol Bannau Brycheiniog. Neges yw hon a fwriadwyd ar gyfer y derbynnydd/derbynyddion yn unig ac fe'i hanfonir yn gyfrinachol; os ydych yn ei dderbyn mewn camgymeriad, a fyddech gystal rhoi gwybod i ni (yn [EMAIL PROTECTED]) ac yna dilwch bob copi.
Re: Redirecting to secure server (ie from http:// to https://)
This is still a very messy area. I ended hardcoding some strings in a production application, but there solutions that would mitigate this, so you only have to hardcode the scheme in your struts-config file. See To SSL and Back Again http://www.mail-archive.com/struts-dev@jakarta.apache.org/msg01357.html http://www.mail-archive.com/struts-dev@jakarta.apache.org/msg01361.html http://www.mail-archive.com/struts-user@jakarta.apache.org/msg08028.html http://www.mail-archive.com/struts-user@jakarta.apache.org/msg07850.html http://www.mail-archive.com/struts-user@jakarta.apache.org/msg07796.html http://www.mail-archive.com/struts-user@jakarta.apache.org/msg06454.html We definatley need to document the best-practice for doing this, as soon as we figure out what that is ;-) Michael Mok wrote: To those who have done it Can you advice on how you manage to redirect the http request from http to https? I have following scenario (typical of a shopping site). 1) User search and place item into shopping cart (eg calls http://www.acmeshop.com/addtoshoppingcart.do) 2) addtoshoppingcart.do do some processing and redirects user back to shopping search page (eg http://www.acmeshop.com/shoppingsearch.jsp ) 3) User clicks on the check out page URL. (eg calls http://www.acmeshop.com/showshoppingcart.do and return the results to http://www.acmeshop.com/showcartcheckout.jsp). 4) User clicks on make payment. On the shwowcartcheckout.jsp, I need to be able to set the form action attribute to call https://www.acmeshop.com/makepayment.do (where makepayment.do will redirect to the https://www.acmeshop.com/enterpaymentdetail.jsp). The form action attribute on the enterpaymentdetail.jsp will call https://www.acmeshop.com/processpayment.do ) What I am trying to find out is how do I set the https:// in the form action attribute of showcartcheckout.jsp. The form tag does not have any attribute will will create the https://... string. Do I have to hard code the form action in this page? Or am I total off the track? Thanks in advance Michael Mok -- Ted Husted, Husted dot Com, Fairport NY USA. -- Custom Software ~ Technical Services. -- Tel 716 737-3463. -- http://www.husted.com/about/struts/
RE: Any Hashmap examples used in jsp page?
Hi Dudley, See code sample below. The type in the iterate tag must be as shown, you will then need to use a bean define to put your 'value' into the page context and cast it to whatever type you have placed in your HashMap value. Hope this helps, Jon. logic:iterate id=list name=gallery property=artifacts type=java.util.Map.Entry bean:define id=artifact name=list property=value type=net.itwa.model.artifact.IArtifact/ bean:write name=artifact property=description/ /logic:iterate -Original Message- From: Dudley Butt@i-Commerce [mailto:[EMAIL PROTECTED]] Sent: 01 June 2001 10:34 To: [EMAIL PROTECTED] Subject: Any Hashmap examples used in jsp page? Hi all, Could anyone please point me to where i can find some examples using hashmaps in a jsp with struts... Instead of using a whole bunch of logic equal tags all the time, i need a way to evaluate a collection, looking for a specific key value, then show or hide the relevant input boxes on my jsp.. any help...please!!!???
Re: Proposed feature: Bean property transformations
What I'm missing is a comprehensive, general package for converting data types and formatting properties for presentation. Most of this functionality is available somewhere in java and javax space, but it's spread around. What would be most useful, I think, is a single, generic package that provided (1) validation of Strings using regular expressions (a la David Winterfeldt's servlet), with direct support for native and JDBC datatypes, (2) binary to String and String to binary conversions for all native and standard types, and support for adding others, (3) given a formatting specification (00#.##) and data of any supported type, return a formatted presentation String, (4) support for locale-senstive transformations with (3), (5) support for extending the formatting specification for unusual circumstances, and (6) provide simple date-calculation methods and a countdown presentation format (seconds, minutes, hours, or days from now until then). We could then use this helper object during the validation cycle to convert incoming Strings to the other types needed by business-logic objects, AND pass through the functionality from a bean:writeTransform tag, that could pull a property from a given bean, transform it, and return a formatted String for direct use by the view. If there is not something like this already out there, I've very interested in getting started on this package, since I really, really need it for my own projects. Could be a nice addition to the Commons ... I'm cross-posting this to Struts user in case someone can suggest a package that already provides this functionality. -- Ted Husted, Husted dot Com, Fairport NY USA. -- Custom Software ~ Technical Services. -- Tel 716 737-3463. -- http://www.husted.com/about/struts/ Ron Smith wrote: I've been thinking of implementing this feature lately and I haven't seen it proposed on this list yet. Any comments? Summary: Provide a means to flexibly plug in transformations that could be applied to JavaBean properties for presentation in a JSP page. What transformation to apply to which JavaBean property is specified in the Struts JSP tags (e.g. bean:write). Transformations are Java classes that are responsible for taking a JavaBean property or any other Object, applying whatever transformation, and returning the transformed Object for presentation in a JSP page. Some example transformations are to format a date in a specific format, format decimal numbers, or even to sort a collection in a particular order before iterating over the collection's objects. Motivation: Separating business entity code from presentation-specific code is a good thing. Consider a business entity class called Order. If we want to display the orderPlacedDate attribute in 4 different date formats on a JSP page, we could add 4 different methods to the Order class to support these 4 different formats. But we quickly end up with a very cluttered Order class and the Order class is too coupled to the presentation details. One approach I've used is to create presentation wrapper classes which hold references to the business entity objects and are responsible for all of the presentation specific formatting. The JSP pages access the presentation wrapper classes and not the business entity classes. For sites that access many different business entity classes, this can become very tedious. A better approach would be to be able to plug-in specific types of presentation transformations to be applied to specific JavaBean properties that are to be displayed in a JSP page without having to create unecessary wrapper classes. Details: Transformations are coded in transformation classes, all of which implement a Transformation interface. This interface has one public method: Object transform(Object inObj) This method is responsible for applying whatever transformation is needed to the passed in object and returning a transformed version of the object for presentation in a JSP page. The transformation objects would be created at initialization based on the configuration file, and could be initialized with some parameters from the configuration file (e.g. the date format string to be used for a date transformation). Each transformation has a name associated with it, and is registered in a hash table based on the name. Some of the Struts custom JSP tags would be modified to take an additional transformation parameter which indicates what transformation is to be applied. For example: bean:write name=order property=orderPlacedDate transformation=shortDateFormat/ In the above example, the orderPlacedDate property is retrieved from the order bean, then the Transformation named shortDateFormat is looked up in the transformations registry, and applied to the property. Whatever was returned by the transformation is what gets displayed on the web page. Another benefit is that because the
Re: New installation - NoSuchMethodError
Hi, i was in the same whirlpool and guess what i am still in there albeit i only had that problem with netbeans v3.2 internal browser and when i utilised netscape with that logon example ( no problem blemo ) ;^ }. I have now gone on 2 better examples and things so if u got any suggestions mail it cheers chuck Vinod Shintre wrote: point ur path/classpath to struts.jar if its not under root/lib usually u wd have it under ur webapps/WEB-INF/classes/lib hope that works vin -Original Message- From: Marcelo Romaniuc [mailto:[EMAIL PROTECTED]] Sent: Thursday, May 31, 2001 3:05 PM To: [EMAIL PROTECTED] Subject: New installation - NoSuchMethodError Hi, I`ve just finished the installation of Struts 1.0b2. I'm using Tomcat 3.2.1 and Apache. When I call /struts-example/logon.jsp I receive the following error back: Anyone has had such problem ? How to solve ? Thanks, Marcelo R. Romaniuc Location: /struts-example/logon.jsp Internal Servlet Error: javax.servlet.ServletException at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:399) at javax.servlet.http.HttpServlet.service(HttpServlet.java:865) at org.apache.tomcat.core.ServletWrapper.doService(ServletWrapper.java:404) at org.apache.tomcat.core.Handler.service(Handler.java:286) at org.apache.tomcat.core.ServletWrapper.service(ServletWrapper.java:372) at org.apache.tomcat.core.ContextManager.internalService(ContextManager.java:79 7) at org.apache.tomcat.core.ContextManager.service(ContextManager.java:743) at org.apache.tomcat.service.connector.Ajp12ConnectionHandler.processConnection (Ajp12ConnectionHandler.java:166) at org.apache.tomcat.service.TcpWorkerThread.runIt(PoolTcpEndpoint.java:416) at org.apache.tomcat.util.ThreadPool$ControlRunnable.run(ThreadPool.java:498) at java.lang.Thread.run(Thread.java:484) Root cause: java.lang.NoSuchMethodError at org.apache.jasper.compiler.TagLibraryInfoImpl.createAttribute(TagLibraryInfo Impl.java:524) at org.apache.jasper.compiler.TagLibraryInfoImpl.createTagInfo(TagLibraryInfoIm pl.java:432) at org.apache.jasper.compiler.TagLibraryInfoImpl.parseTLD(TagLibraryInfoImpl.ja va:385) at org.apache.jasper.compiler.TagLibraryInfoImpl.(TagLibraryInfoImpl.java:233) at org.apache.jasper.compiler.JspParseEventListener.handleDirective(JspParseEve ntListener.java:706) at org.apache.jasper.compiler.DelegatingListener.handleDirective(DelegatingList ener.java:116) at org.apache.jasper.compiler.Parser$Directive.accept(Parser.java:215) at org.apache.jasper.compiler.Parser.parse(Parser.java:1077) at org.apache.jasper.compiler.Parser.parse(Parser.java:1042) at org.apache.jasper.compiler.Parser.parse(Parser.java:1038) at org.apache.jasper.compiler.Compiler.compile(Compiler.java:182) at org.apache.jasper.servlet.JspServlet.doLoadJSP(JspServlet.java:462) at org.apache.jasper.servlet.JasperLoader12.loadJSP(JasperLoader12.java:146) at org.apache.jasper.servlet.JspServlet.loadJSP(JspServlet.java:433) at org.apache.jasper.servlet.JspServlet$JspServletWrapper.loadIfNecessary(JspSe rvlet.java:152) at org.apache.jasper.servlet.JspServlet$JspServletWrapper.service(JspServlet.ja va:164) at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:318) at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:391) at javax.servlet.http.HttpServlet.service(HttpServlet.java:865) at org.apache.tomcat.core.ServletWrapper.doService(ServletWrapper.java:404) at org.apache.tomcat.core.Handler.service(Handler.java:286) at org.apache.tomcat.core.ServletWrapper.service(ServletWrapper.java:372) at org.apache.tomcat.core.ContextManager.internalService(ContextManager.java:79 7) at org.apache.tomcat.core.ContextManager.service(ContextManager.java:743) at org.apache.tomcat.service.connector.Ajp12ConnectionHandler.processConnection (Ajp12ConnectionHandler.java:166) at org.apache.tomcat.service.TcpWorkerThread.runIt(PoolTcpEndpoint.java:416) at org.apache.tomcat.util.ThreadPool$ControlRunnable.run(ThreadPool.java:498) at java.lang.Thread.run(Thread.java:484) __ Do You Yahoo!? Get personalized email addresses from Yahoo! Mail - only $35 a year! http://personal.mail.yahoo.com/ -- The views expressed by the sender of this message don't necessarily represent those of Brecon Beacons National Park Authority. This message is intended for the addressee(s) only and is sent in confidence; if you receive it in error, please can you let us know (at [EMAIL PROTECTED]) and then destroy all copies. Nid yw'r farn a fynegir gan anfonwr y neges hon o anghenraid yn adlewyrchu barn Awdurdod Parc Cenedlaethol Bannau Brycheiniog. Neges yw hon a fwriadwyd ar gyfer y derbynnydd/derbynyddion yn unig ac fe'i hanfonir yn gyfrinachol; os ydych yn ei dderbyn mewn
RE: template and I18N
Gregor This works template:put name='title' direct='true' bean:message key='app.login' / /template:put or template:put name='title' direct='true' content='bean:message key='app.login'/'/ Cal -Original Message- From: Gregor Rayman [mailto:[EMAIL PROTECTED]] Sent: Wednesday, May 30, 2001 09:02 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
RE: Resources clarification - is there a work around
Let me preface this by saying I haven't given this much thought. Since struts already supports multiple bundles (i.e. with the bundle attribute on bean:message) would it make since to have struts read all the resource files from a particular directory or path and use the base filename of the property file as the name of the bundle? That would allow people to break up their properties files however they want to. The default file with the bundle key Action.MESSAGES_KEY would still be used whenever a bundle was not specified. I think if I were going to have a huge number of bundles like one per page, I would pull my resources from a database using a custom DatabaseMessageResourceFactory. I have considered writing a such a factory and the accompanying webapp to maintain the translations but I haven't followed through. Hal -Original Message- From: Jonathan Asbell [mailto:[EMAIL PROTECTED]] Sent: Thursday, May 31, 2001 9:30 PM To: [EMAIL PROTECTED] Subject: Re: Resources clarification - is there a work around The problem we found was that a master list is impossible to manage. For instance, on the soon to arrive 10th page of the property file, you will have to search all of the previous pages to check to see if you already used the property name already. Chances are that you did use the name already because an individual tends to think in their own way and come up with the same naming schemes, and you will have more for the property name name in many many other pages. Then some designer or manager tells you to add a form field which you recognize that you could use name as the field property and realize you have to rethink the way you have been and will continue naming things, such as signup_name, logon_name, search_name, artist_name, publication_name.. after completeing the 30th jsp page you say to yourself, man(sigh), if I just had a properties file for each page or include, than I wouldnt have a 3000 line properties file with which I cannot sort, group, or categorize all of the property names nicely. It was easier for us to: 1) know what was on any page (just look at the like named proerties file) 2) fix or add to a page without thinking if the name was used, and whether I thus have to come up with a naming scheme for this one or all of them. 3) just hand over translatable content to the translators on a page by page basis. 4) if you later decide to keep it in the database you can because you just associate pageName with propertyName logon.jspuser.name logon.jspuser.address logon.jsp signup.jspuser.name signup.jspuser.password checkout.jspuser.name This is much easier. Try it. You will see how managing this grand list sucks ;^) If your developers are anything like places I have worked for, than you know how things get out of control. I just take this as a given. With my way, at any time, I can email out new pages and text to be translated (by a clerk, designers, editors). I send a visual and typeographic pair of items that go together and that an editor can say, yes, this is what I want the caption to say on this page. Do I repeadedly send the editor chunks of a 3000+ item list and then say: (me) can you tell me what you want to say in these new lines of text? (editor) which lines? (me) the ones I highlighted (editor) which of these lines of text is on this page we are talking about?. Do you see why I say the benefits from a big list loose out to a small list? What if I delete one. What pages does it effect? Which ones have been left orphaned? You dont know in any easy way. For search and replace you now have to search each particularly named item. If they all were called user.name I could just search and replace it everywhere below a directory. If one is logon.user.name and another search.user.name you now have to search and find each unique one. Could you get them all, or did you miss some because someone was using logon.User.Name instead of logon.user.name or logonUserName. - Original Message - From: Nanduri, Amarnath [EMAIL PROTECTED] To: [EMAIL PROTECTED] Sent: Thursday, May 31, 2001 5:50 PM Subject: RE: Resources clarification - is there a work around Hi Guys, From my personal experience it would not be a bad idea for struts to support multiple resource bundles. I will explain my reasons below. At present struts has one resource bundle in which you can include error messages , confirmation messages , labels on html fileds etc For a big application ( like i am on right now. We are going to have 50 jsp pages minimum) it is quite a pain in the neck to add properties to a single file. Besides the developers having to compete with one another to checkout the properties file ( from source safe ) maintaining it is an another pain. One more problem we encountered is nested exceptions deep in the
Re: Resources clarification - is there a work around
I totally respect what you are trying to do with the database idea, but the problem with managing and keeping track keeps re-appearing - that is, if you are suggesting getting the data from a database. In fact, now you have added another series of steps: what variables do we have, where are we using them, lets now go do a search in the database to see what we have, lets now see where we use it. It's like working with database normalization. You first normalize, then you de-normailze to eliminate complexity. In this case I will always need to know what text appears on what page. If they are bundled together than it is a matter of finding the associated text file for that page. Otherwise I have to go hunting and querying. Want to add a page? Add a text file. Want to change an item on a page? Change it in all the associated text files (one for each language translation). Yes you cant make a global change. But you CAN do a global search and replace! - Original Message - From: Deadman, Hal [EMAIL PROTECTED] To: [EMAIL PROTECTED] Sent: Friday, June 01, 2001 12:18 PM Subject: RE: Resources clarification - is there a work around Let me preface this by saying I haven't given this much thought. Since struts already supports multiple bundles (i.e. with the bundle attribute on bean:message) would it make since to have struts read all the resource files from a particular directory or path and use the base filename of the property file as the name of the bundle? That would allow people to break up their properties files however they want to. The default file with the bundle key Action.MESSAGES_KEY would still be used whenever a bundle was not specified. I think if I were going to have a huge number of bundles like one per page, I would pull my resources from a database using a custom DatabaseMessageResourceFactory. I have considered writing a such a factory and the accompanying webapp to maintain the translations but I haven't followed through. Hal -Original Message- From: Jonathan Asbell [mailto:[EMAIL PROTECTED]] Sent: Thursday, May 31, 2001 9:30 PM To: [EMAIL PROTECTED] Subject: Re: Resources clarification - is there a work around The problem we found was that a master list is impossible to manage. For instance, on the soon to arrive 10th page of the property file, you will have to search all of the previous pages to check to see if you already used the property name already. Chances are that you did use the name already because an individual tends to think in their own way and come up with the same naming schemes, and you will have more for the property name name in many many other pages. Then some designer or manager tells you to add a form field which you recognize that you could use name as the field property and realize you have to rethink the way you have been and will continue naming things, such as signup_name, logon_name, search_name, artist_name, publication_name.. after completeing the 30th jsp page you say to yourself, man(sigh), if I just had a properties file for each page or include, than I wouldnt have a 3000 line properties file with which I cannot sort, group, or categorize all of the property names nicely. It was easier for us to: 1) know what was on any page (just look at the like named proerties file) 2) fix or add to a page without thinking if the name was used, and whether I thus have to come up with a naming scheme for this one or all of them. 3) just hand over translatable content to the translators on a page by page basis. 4) if you later decide to keep it in the database you can because you just associate pageName with propertyName logon.jspuser.name logon.jspuser.address logon.jsp signup.jspuser.name signup.jspuser.password checkout.jspuser.name This is much easier. Try it. You will see how managing this grand list sucks ;^) If your developers are anything like places I have worked for, than you know how things get out of control. I just take this as a given. With my way, at any time, I can email out new pages and text to be translated (by a clerk, designers, editors). I send a visual and typeographic pair of items that go together and that an editor can say, yes, this is what I want the caption to say on this page. Do I repeadedly send the editor chunks of a 3000+ item list and then say: (me) can you tell me what you want to say in these new lines of text? (editor) which lines? (me) the ones I highlighted (editor) which of these lines of text is on this page we are talking about?. Do you see why I say the benefits from a big list loose out to a small list? What if I delete one. What pages does it effect? Which ones have been left orphaned? You dont know in any easy way. For search and replace you now have to search each particularly
RE: Tag Iterate !!!
Based on what you are showing in your email, everything looks OK. I don't
think the problem is with the iterate tag. The message
javax.servlet.ServletException: Cannot find bean client in scope null
would have to be coming from bean:write which is looking for a bean called
client. It's looking in all scopes (null just means you didn't specify a
scope), so you don't need to add a scope. The iterate tag should put a bean
in the page scope with the name client.
Are you sure that it is the bean:write tag inside the iterate tag that is
causing the error or is there something else on the JSP that you aren't
showing? Try removing the bean:write from the iterate tag and replacing it
with some html.
-Original Message-
From: Geoffrey Van Nuffelen [mailto:[EMAIL PROTECTED]]
Sent: Friday, June 01, 2001 9:49 AM
To: [EMAIL PROTECTED]
Subject: Re: Tag Iterate !!!
Hi Ash,
Thanks for your help... But I have the same error with Client.
Have you got a example of this tag method ???
Geoffrey...
- Original Message -
From: A.Sharma [EMAIL PROTECTED]
To: [EMAIL PROTECTED]
Sent: Friday, June 01, 2001 12:10 PM
Subject: RE: Tag Iterate !!!
hi
probably change the case of 'c' in client.
the class has Capiltal 'c' while in JSP you are accessing small 'c'.
:)
ash
-Original Message-
From: Geoffrey Van Nuffelen [mailto:[EMAIL PROTECTED]]
Sent: Friday, June 01, 2001 3:24 PM
To: Struts-User (E-Mail)
Subject: Tag Iterate !!!
Hi all,
I try to use the tag iterate (logic) but I can't. I haven't success.
I am working on Windows NT with tomcat 3.2 and struts 1.0b-2.
I try to pass an array of object ( a personnal client
class). but when a
try
to access a property I have this error :
javax.servlet.ServletException: Cannot find bean client in
scope null
at
org.apache.jasper.runtime.PageContextImpl.handlePageException(
PageContextImp
l.java:459)
at
_0002fClientList_0002ejspClientList_jsp_55._jspService(_0002fC
lientList_0002
ejspClientList_jsp_55.java:214)
What I have to ?? I have to specify a scope ???
Here you are the code of the .jsp , java class wich put the
parameter and
client.class.
.jsp :
...
body bgcolor=white
logic:iterate id=client name=test
bean:write name=client property=pmclient/
/logic:iterate
/body
...
Java class :
--
Client test[] = clients.getClients();
servlet.log(nmclient from clients : +
test[i].getNmclient(), 1); //
test
... it's working
HttpSession session = request.getSession();
session.setAttribute(test, test);
return (mapping.findForward(success));
Client class :
public class Client {
private String nmclient = ;
private String pmclient = ;
private long cdclient;
public Client() {
}
public String getNmclient() {
return nmclient;
}
public void setNmclient(String newNmclient) {
nmclient = newNmclient;
}
public String getPmclient() {
return pmclient;
}
public void setPmclient(String newPmclient) {
pmclient = newPmclient;
}
public long getCdclient() {
return cdclient;
}
public void setCdclient(long newCdclient) {
cdclient = newCdclient;
}
}
Thanks in advance for your help.
Geoffrey...
CTLX Dreamweaver Extension Error
Title: CTLX Dreamweaver Extension Error Hi, Has anyone encountered a Tomcat:SecurityException when running the ctlx Extension for Dreamweaver? The Floater displays the list of tld's, but onClick() of useTaglibs.html throws the following exception while trying to load the array of taglibs. java.lang.SecurityException: sealing violation at java.net.URLClassLoader.defineClass(URLClassLoader.java:234) at java.net.URLClassLoader.access$100(URLClassLoader.java:56) at java.net.URLClassLoader$1.run(URLClassLoader.java:195) at java.security.AccessController.doPrivileged(Native Method) at java.net.URLClassLoader.findClass(URLClassLoader.java:188) at java.lang.ClassLoader.loadClass(ClassLoader.java:297) at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:286) at java.lang.ClassLoader.loadClass(ClassLoader.java:253) at java.lang.ClassLoader.loadClassInternal(ClassLoader.java:313) at TLDParser.parseTLD(TLDParser.java:150) at TLDParser.doGet(TLDParser.java:132) at javax.servlet.http.HttpServlet.service(HttpServlet.java:740) at javax.servlet.http.HttpServlet.service(HttpServlet.java:853) at org.apache.tomcat.core.ServletWrapper.doService(ServletWrapper.java:404) at org.apache.tomcat.core.Handler.service(Handler.java:286) at org.apache.tomcat.core.ServletWrapper.service(ServletWrapper.java:372) at org.apache.tomcat.core.ContextManager.internalService(ContextManager.java:797) at org.apache.tomcat.core.ContextManager.service(ContextManager.java:743) at org.apache.tomcat.service.http.HttpConnectionHandler.processConnection(HttpConnectionHandler.java:210) at org.apache.tomcat.service.TcpWorkerThread.runIt(PoolTcpEndpoint.java:416) at org.apache.tomcat.util.ThreadPool$ControlRunnable.run(ThreadPool.java:498) at java.lang.Thread.run(Thread.java:484) Any suggestions would be appreciated... Kat Luna Web Developer, BCE Emergis [EMAIL PROTECTED]
Templates
Hi everybody, i`m new here... I worked whit strut's templates in Resin, always used forwards into pages than include the template, now need put this work into weblogic but get this: java.lang.IllegalStateException: Cannot forward a response that is already commi tted i don't know if this is a bug for weblogic or for resin, How i can use this work in Weblogic. Thanks in advanced P.D. Sorry for my very bad english
RE: Templates
Title: RE: Templates It is a bug with Weblogic. Weblogic probaly already sent newline charaters in the response, so it won't allow you to forward the request at that point. I recommend you keep the generated java file when the jsp is compiled and you will be able to see what Weblogic is doing. -Original Message- From: Jose Manuel Sanchez Pineda [mailto:[EMAIL PROTECTED]] Sent: Friday, June 01, 2001 12:23 PM To: [EMAIL PROTECTED] Subject: Templates Hi everybody, i`m new here... I worked whit strut's templates in Resin, always used forwards into pages than include the template, now need put this work into weblogic but get this: java.lang.IllegalStateException: Cannot forward a response that is already commi tted i don't know if this is a bug for weblogic or for resin, How i can use this work in Weblogic. Thanks in advanced P.D. Sorry for my very bad english
Size on html:file tag??
Hi everyone. I am using the html:file tag, and running up against an error, saying the size attribute is invalid! It is clearly marked as valid in the docs! Is this a bug? I can take off the size= and it displays fine. My tag looks like this: html:file property=filename size=60/. Help is appreciated, Dave
RE: Size on html:file tag??
If your looking at the documentation on the web, it may be newer than your build. I think the size tag was added to the tld recently. Do you have a recent build? Hal -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]] Sent: Friday, June 01, 2001 3:30 PM To: [EMAIL PROTECTED] Subject: Size on html:file tag?? Hi everyone. I am using the html:file tag, and running up against an error, saying the size attribute is invalid! It is clearly marked as valid in the docs! Is this a bug? I can take off the size= and it displays fine. My tag looks like this: html:file property=filename size=60/. Help is appreciated, Dave
Re: Potential Security Flaw in Struts MVC
please remove me from this list.
Re: Proposed feature: Bean property transformations
Harris, Andrew S wrote: A component would be able to hold a text value and a data value. The text value could hold the value entered by the user, prior to validation, then this could be played back to the user if validation failed on that component. If validation succeeded, the data value would be updated, then the text value would be replaced by the formatted value, using the data value and the formatter. This is a good design pattern, and one we can use with Struts today. In the ActionForm bean, define two properties, one for the text value and one for the data value. If validation succeeds, convert the text value to the data value, and (optionally) update the text value to match your preferred formatting. Though, with a general conversion/transformation package, we would really only need to store the desired data value since we could transform it again later when the value was accessed for presentation, perhaps via a bean:writeTransform tag. -- Ted Husted, Husted dot Com, Fairport NY USA. -- Custom Software ~ Technical Services. -- Tel 716 737-3463. -- http://www.husted.com/about/struts/
RE: Multipage forms and validation
David, I see your on the 1.1 ToDo list as a volunteer for Standard Validations and Client Side Validations - is it likely your validation framework is going to be adopted for Struts - and if so how close is what you're offering now to what Struts will have in 1.1? I'm just wondering whether to plough on with what we've got or wait for what might be coming in Struts. Niall -Original Message- From: David Winterfeldt [mailto:[EMAIL PROTECTED]] Sent: 31 May 2001 23:32 To: [EMAIL PROTECTED] Subject: Re: Multipage forms and validation I've done some work on a validation framework for Struts that is based on defining rules in an xml file. Right now it depends on associating a field with a page and setting a variable in the JSP page to set what page you are on. I had a long discussion with someone on how to make it not depend on associating fields with a page so it was separated from the view, but I haven't had time to finish doing that. The biggest problem is that if you have a session scope bean then you still absolutely have to know if there is a checkbox field on the page so you can reset it. The best idea to get away from page numbers was to have a custom ActionForward for each page and pass in the checkbox fields to be reset along with the action. Here is the url for what I currenty have working. There is a multi-page example in the validator.war and jdbc-validator.war in the webapps directory. http://home.earthlink.net/~dwinterfeldt David Winterfeldt --- Lukasz Kowalczyk [EMAIL PROTECTED] wrote: Hi. I'm trying to employ Struts to help me build multi-page forms. Those forms consist of all kinds of inputs, including multipart. The questions are as follows: 1. How can I validate forms which I know will never set all of the required elements at a time since the required elements can span multiple pages? I could check which submit was clicked and then validate just a subset of form elements but I think it's not very Struts-oriented, and secondly this makes validate() method dependent on specific placement of form inputs (when I decide to move some field to another page I have to modify validate()). 2. Can I use the same Action class to handle multipart and non-multipart request? Will performance hurt because of this? -- £ukasz Kowalczyk __ Do You Yahoo!? Get personalized email addresses from Yahoo! Mail - only $35 a year! http://personal.mail.yahoo.com/
nested TokenStreamException, WL6, Templates
the Exception javax.servlet.jsp.JspException: JSP compilation of /inc/template2.jsp failed: weblogic.utils.ParsingException: nested TokenStreamException: antlr.TokenStreamException: Could not include inc/imports.jsp at org.apache.struts.taglib.template.InsertTag.doEndTag(InsertTag.java:149) at jsp_servlet._logon._jspService(_logon.java:160) at weblogic.servlet.jsp.JspBase.service(JspBase.java:27) at weblogic.servlet.internal.ServletStubImpl.invokeServlet(ServletStubImpl.java:213) at weblogic.servlet.internal.ServletStubImpl.invokeServlet(ServletStubImpl.java:246) at weblogic.servlet.internal.WebAppServletContext.invokeServlet(WebAppServletContext.java:1265) 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) the page "logon.jsp" %@ include file="inc/imports.jsp" %template:insert template='/inc/template2.jsp'template:put name='title' content='Logon to Success Meetings' direct='true'/template:put name='logon_form' content='/inc/logon_form.jsp'//template:insert the template "my_template.jsp" %@ include file="inc/imports.jsp" %html:html locale="true" BODY template:get name='logon_form'/ . /BODY/html:html Common include "imports.jsp" %@ page language="java" %%@ taglib uri="/WEB-INF/struts-bean.tld" prefix="bean" %%@ taglib uri="/WEB-INF/struts-html.tld" prefix="html" %%@ taglib uri="/WEB-INF/struts-logic.tld" prefix="logic" %%@ taglib uri="/WEB-INF/struts-template.tld" prefix="template" %
RE: Any Hashmap examples used in jsp page?
Hi Jon. I'm having a similar problem as Dudley with a HashMap. I tried playing around with your example but couldn't get it to work within the context of what I'm doing. Perhaps another example would help. For example, I have a scriptlet that looks something like: fee.fie.fo.sql.ResultSetBean rsb = (fee.fie.fo.sql.ResultSetBean) request.getAttribute(resultBean); java.util.HashMap hm = rsb.getProperties(); String foobar = (String) hm.get(foobar); out.println(foobar = + foobar); So, the ResultSetBean contains a HashMap as a property. I get a reference to the HashMap and then can extract a value with a key as input. Any ideas on the syntax of doing this with bean tags? TIA. On Fri, 1 Jun 2001, Jon.Ridgway wrote: Hi Dudley, See code sample below. The type in the iterate tag must be as shown, you will then need to use a bean define to put your 'value' into the page context and cast it to whatever type you have placed in your HashMap value. Hope this helps, Jon. logic:iterate id=list name=gallery property=artifacts type=java.util.Map.Entry bean:define id=artifact name=list property=value type=net.itwa.model.artifact.IArtifact/ bean:write name=artifact property=description/ /logic:iterate -Original Message- From: Dudley Butt@i-Commerce [mailto:[EMAIL PROTECTED]] Sent: 01 June 2001 10:34 To: [EMAIL PROTECTED] Subject: Any Hashmap examples used in jsp page? Hi all, Could anyone please point me to where i can find some examples using hashmaps in a jsp with struts... Instead of using a whole bunch of logic equal tags all the time, i need a way to evaluate a collection, looking for a specific key value, then show or hide the relevant input boxes on my jsp.. any help...please!!!??? --- Steve Drake[EMAIL PROTECTED] UCAR / COMET (303) 497 - 8496 PO Box 3000 Boulder, CO 80307-3000
error in tag library ImageTag using weblogic 5.1
I'm getting the following error trying to use struts with WL5.1 Anyone seen this before? weblogic.servlet.jsp.JspException: (line -1): Error in tag library at: 'form': The Tag class 'org.apache.struts.taglib.html.ImageTag' has no setter method corresponding to TLD declared attribute 'path', (JSP 1.1 spec, 5.4.1) thanks don don zaremba Ellacoya Networks 603 577-5544 ext-247
RE: error in tag library ImageTag using weblogic 5.1
Which build are you using? --Abraham -Original Message- From: Zaremba, Don [mailto:[EMAIL PROTECTED]] Sent: Friday, June 01, 2001 4:21 PM To: '[EMAIL PROTECTED]' Subject: error in tag library ImageTag using weblogic 5.1 I'm getting the following error trying to use struts with WL5.1 Anyone seen this before? weblogic.servlet.jsp.JspException: (line -1): Error in tag library at: 'form': The Tag class 'org.apache.struts.taglib.html.ImageTag' has no setter method corresponding to TLD declared attribute 'path', (JSP 1.1 spec, 5.4.1) thanks don don zaremba Ellacoya Networks 603 577-5544 ext-247
RE: error in tag library ImageTag using weblogic 5.1
Don, Can you try the 1.0-b2 I think there were some tag issues in certain builds of 1.0b1. --Abraham -Original Message- From: Zaremba, Don [mailto:[EMAIL PROTECTED]] Sent: Friday, June 01, 2001 4:53 PM To: '[EMAIL PROTECTED]' Subject: RE: error in tag library ImageTag using weblogic 5.1 Its 1.0-b1 -Original Message- From: Abraham Kang [mailto:[EMAIL PROTECTED]] Sent: Friday, June 01, 2001 8:04 PM To: [EMAIL PROTECTED] Subject: RE: error in tag library ImageTag using weblogic 5.1 Which build are you using? --Abraham -Original Message- From: Zaremba, Don [mailto:[EMAIL PROTECTED]] Sent: Friday, June 01, 2001 4:21 PM To: '[EMAIL PROTECTED]' Subject: error in tag library ImageTag using weblogic 5.1 I'm getting the following error trying to use struts with WL5.1 Anyone seen this before? weblogic.servlet.jsp.JspException: (line -1): Error in tag library at: 'form': The Tag class 'org.apache.struts.taglib.html.ImageTag' has no setter method corresponding to TLD declared attribute 'path', (JSP 1.1 spec, 5.4.1) thanks don don zaremba Ellacoya Networks 603 577-5544 ext-247
*TED* Re: I am finding that templates are SLOW
the Exception javax.servlet.jsp.JspException: JSP compilation of /inc/template2.jsp failed: weblogic.utils.ParsingException: nested TokenStreamException: antlr.TokenStreamExc eption: Could not include inc/imports.jsp at org.apache.struts.taglib.template.InsertTag.doEndTag(InsertTag.java:149) at jsp_servlet._logon._jspService(_logon.java:160) at weblogic.servlet.jsp.JspBase.service(JspBase.java:27) at weblogic.servlet.internal.ServletStubImpl.invokeServlet(ServletStubImpl.java :213) at weblogic.servlet.internal.ServletStubImpl.invokeServlet(ServletStubImpl.java :246) at weblogic.servlet.internal.WebAppServletContext.invokeServlet(WebAppServletCo ntext.java:1265) 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) the page logon.jsp %@ include file=inc/imports.jsp % template:insert template='/inc/template2.jsp' template:put name='title' content='Logon to Success Meetings' direct='true'/ template:put name='logon_form' content='/inc/logon_form.jsp'/ /template:insert the template my_template.jsp %@ include file=inc/imports.jsp % html:html locale=true BODY template:get name='logon_form'/ . /BODY /html:html Common include imports.jsp %@ page language=java % %@ taglib uri=/WEB-INF/struts-bean.tld prefix=bean % %@ taglib uri=/WEB-INF/struts-html.tld prefix=html % %@ taglib uri=/WEB-INF/struts-logic.tld prefix=logic % %@ taglib uri=/WEB-INF/struts-template.tld prefix=template % - Original Message - From: Ted Husted [EMAIL PROTECTED] To: [EMAIL PROTECTED] Sent: Friday, June 01, 2001 5:10 PM Subject: Re: I am finding that templates are SLOW Template pages can take longer to compile, since there is more to do, but should run fine after that. I've used complex templates extensively with other containers and have no runtime performance problems. -- Ted Husted, Husted dot Com, Fairport NY USA. -- Custom Software ~ Technical Services. -- Tel 716 737-3463. -- http://www.husted.com/about/struts/ Jonathan wrote: I am using weblogic 6 on w2k. I clicked on a templated page and MAN.I wait atleast 1 minute for the results. Is this known?
Re: Initialization of Request-Scoped Objects
On Thu, 10 May 2001, Jeff Trent wrote: When myAction.do is called, I have a chance within reset() to initialize my request-scoped objects. However, if myAction.jsp is called instead then I can't seem to find a way to get initialized. Are there any methods called in my Action class when the .jsp file is invoked instead of the .do file? Currently, the only methods that are called are the zero-arguments constructor and the setServlet() method. What I tend to do is put a call to reset() inside the constructor for things like this. Craig
Re: possibility of default action?
On 11 May 2001 [EMAIL PROTECTED] wrote: Is it possible to specify a default action for forms that? Say the only behaviour I need is that the parameters in the Form object are populated and validated. Possible? Desirable? How would Struts know what page to forward (or redirect) to next? Craig
Re: Problem with tag
On Fri, 11 May 2001, Laurent Cornelis wrote: I found a workaround, I wrote : logic:iterate id=faq name=faqList type=be.dummy.faq.bean.FAQBean/ p html:link page='/listFAQ.do' anchor='%= ((FAQBean)pageContext.findAttribute(faq)).getId().toString() %' bean:write name=faq property=question/ /html:link /p /logic:iterate But I really don't like this solution ... The reason this is necessary is that you are not allowed to next a tag inside a tag (the way that you originally tried to do). Any cleaner solution will be grealty appreciated ! I'm not sure there is a better solution off the top of my head ... Craig
RE: How can i execute the STRUTS examples in JavaWebServer?
On Fri, 11 May 2001, Anthony Martin wrote: I would be interested in knowing if anyone has done this. I work with a group that started with JWS, and their move to Tomcat doesn't seem to be going very well. I would still like to supply them with Struts objects, but only to prove it can work in strange contexts like JWS. I didn't think JWS supported Servlet 2.2 + JSP 1.1, which Struts requires ... Anthony Craig
Re: filtering unwanted characters
On Fri, 11 May 2001, Ian Kallen [EMAIL PROTECTED] wrote: Apache 2.0 supports input filters, how about writing one that cleans the data input before mod_jk/mod_webapp can hand it off to Tomcat? In a Servlet 2.3 environment (such as Tomcat 4.0), you can use the new Filter APIs to accomplish the same thing. However, either of these approaches means you have to parse out the request parameters and put them back together again for the real servlet. That sounds like a lot more work than should be needed. On Fri, 11 May 2001, Nanduri, Amarnath wrote: I am looking for some open source code that deals with filtering technology. Basically i want to filter any unwanted characters from the user input data. The user might try to pass in some SQL quesries or try to run some shell scripts or put special characters which might be rejected by a database (or even corrupt it). If no such open source code is available then i want to write something like that. I was wondering if anyone has done some Have you considered putting stuff like this in the validate() method of your form bean? You could probably write a common utility method that scanned a String for unwanted characters, returning true if there was a problem. Then, your validate() method would pass all the input strings in the form through this method to look for problems. The other thing that really really helps when doing database stuff is to use JDBC PreparedStatement objects. That way, even if your users try to pass in wierd command delimiters and stuff, it ends up inside an SQL string that is properly quoted by the driver itself, rather than modifying the SQL command you are trying to run. cheers, -Ian -- Ian Kallen [EMAIL PROTECTED] | AIM: iankallen Craig
Weblogic and ClassCastException
Hey All, Has anyone experienced ClassCastException problems while using WebLogic 6.0? I'm developing a multipage form and when trying to retreive the bean from the request, I'm getting a ClassCastException. Steven BEGIN:VCARD VERSION:2.1 N:Leija;Steven;R. FN:Steven R. Leija ORG:Valtech Technologies, Inc.;Professional Services TITLE:Consultant NOTE;ENCODING=QUOTED-PRINTABLE:=0D=0A =0D=0A TEL;WORK;VOICE:(214) 792-3585 TEL;HOME;VOICE:(972) 820-5627 TEL;CELL;VOICE:(806) 535-3227 TEL;WORK;FAX:(972) 789-1340 ADR;WORK;ENCODING=QUOTED-PRINTABLE:;;5080 Spectrum Drive=0D=0ASuite 1010 West;Dallas;Texas;75001;United States = of America LABEL;WORK;ENCODING=QUOTED-PRINTABLE:5080 Spectrum Drive=0D=0ASuite 1010 West=0D=0ADallas, Texas 75001=0D=0AUnite= d States of America ADR;HOME;ENCODING=QUOTED-PRINTABLE:;;3653 Briargrove Lane=0D=0AApt. #1531;Dallas;TX;75287;United States of Amer= ica LABEL;HOME;ENCODING=QUOTED-PRINTABLE:3653 Briargrove Lane=0D=0AApt. #1531=0D=0ADallas, TX 75287=0D=0AUnited State= s of America URL;HOME:http://management.ba.ttu.edu/stevenleija.htm EMAIL;PREF;INTERNET:[EMAIL PROTECTED] EMAIL;INTERNET:[EMAIL PROTECTED] REV:20010602T014909Z END:VCARD
Re: How can I use set-property property=foo value=123 / instru ts-config.xml
On Fri, 11 May 2001, David Holland wrote:
How can I use set-property property=foo value=123 / in
struts-config.xml ?
I want to use it in place of forward to store Action configuration info
(set-property is
specified in the dtd).
Tried to add getter setter to Action descendant - but assignment by
introspection
didn't seem to work.
Looked at the source for ActionServlet, and the digester class does appear
to be doing something
with this property, although it looks like it is only looking for a single
instance in an action.
As far as I can tell, either it is not intended for general use or it is
broken.
Any thoughts?
David Holland
[EMAIL PROTECTED]
The basic idea is that you might want to subclass ActionMapping (the
Struts class that holds the information related to an action element) to
add some additional properties. We still want to take advantage of the
automatic property setting that Digester does for you, but it is not
convenient to change the DTD for the configuration file for each
individual application requirement.
So, to support customizable property setting, the following steps are
required:
(1) You must create a subclass of ActionMapping with extra property
getter and setter functions for your custom properties:
public MyActionMapping extends ActionMapping {
public String getFoo() { ... }
public void setFoo(String foo) { ... }
}
(2) You must tell Struts to use your MyActionMapping class (instead of
the standard one when it processes the struts-config.xml file. You
can do this globally for all action elements by setting up the
mapping servlet initialization parameter for the controller servlet:
servlet
servlet-nameController/servlet-name
servlet-classorg.apache.struts.action.ActionServlet/servlet-class
... other init parameters ...
init-param
param-namemapping/param-name
param-valuecom.mycompany.mypackage.MyActionMapping/param-value
/init-param
/servlet
or you can override the class to be used on each individual action:
action ...
className=com.mycompany.mypackage.MyActionMapping ... /
(3) Now, in your struts-config.xml file, you can customize the value of
foo for each individual action element. Assuming you did the
global naming alternative, you might have something like this:
action path=/bar
type=com.mycompany.mypackage.BarAction
set-property property=foo value=Custom Foo Value/
/action
(4) To retrieve the custom configuration values inside your action,
you will need to cast the ActionMapping you receive to your own
value:
public ActionForward perform(ActionMapping mapping, ...) ... {
MyActionMapping myMapping = (MyActionMapping) mapping;
String foo = myMapping.getFoo();
...
}
The same basic design pattern lets you customize the implementation
objects for forward and form-bean declarations as well, by extending
ActionForward and ActionFormBean respectively.
Craig McClanahan
Re: Global forwards, targets and frames
On Fri, 11 May 2001, Kyle Robinson wrote: Is there a way to specify the target of a global forward? I have a global forward which I want to go to another frame. For instance in my action if everything works fine I want to return to the input page but if there is an error I want to go to another frame. Any thoughts? Unfortunately, targets need to be specified by the client, not the server. For any one request, then, you're stuck with making a single choice for where the response will be displayed. Kyle Robinson Systems Consultant Pangaea Systems Inc. (250) 360-0111 Craig
Re: filtering unwanted characters
See the character filter I donated last week - Original Message - From: Craig R. McClanahan [EMAIL PROTECTED] To: [EMAIL PROTECTED] Sent: Friday, June 01, 2001 9:31 PM Subject: Re: filtering unwanted characters On Fri, 11 May 2001, Ian Kallen [EMAIL PROTECTED] wrote: Apache 2.0 supports input filters, how about writing one that cleans the data input before mod_jk/mod_webapp can hand it off to Tomcat? In a Servlet 2.3 environment (such as Tomcat 4.0), you can use the new Filter APIs to accomplish the same thing. However, either of these approaches means you have to parse out the request parameters and put them back together again for the real servlet. That sounds like a lot more work than should be needed. On Fri, 11 May 2001, Nanduri, Amarnath wrote: I am looking for some open source code that deals with filtering technology. Basically i want to filter any unwanted characters from the user input data. The user might try to pass in some SQL quesries or try to run some shell scripts or put special characters which might be rejected by a database (or even corrupt it). If no such open source code is available then i want to write something like that. I was wondering if anyone has done some Have you considered putting stuff like this in the validate() method of your form bean? You could probably write a common utility method that scanned a String for unwanted characters, returning true if there was a problem. Then, your validate() method would pass all the input strings in the form through this method to look for problems. The other thing that really really helps when doing database stuff is to use JDBC PreparedStatement objects. That way, even if your users try to pass in wierd command delimiters and stuff, it ends up inside an SQL string that is properly quoted by the driver itself, rather than modifying the SQL command you are trying to run. cheers, -Ian -- Ian Kallen [EMAIL PROTECTED] | AIM: iankallen Craig
Re: Accessing ServletContext from session object
On Fri, 11 May 2001, Matthew Fowkes wrote: I was wondering if anyone else has tried to access the ServletContext from the session object. I have written a class that implements HttpSessionBindingListener so I can detect when a users session expires. When the session expires, the valueUnbound method is called and is passed an event. From that event I can retrieve the users session object and this is where the problem begins. The only object I have is the users session object, but I need to somehow get an attribute from the ServletContext to mark that the user session has expired. Has anyone on the list done this before? Thanks in advance. Matt In a Servlet 2.3 container (like Tomcat 4.0), you can do this pretty easily -- a getServletContext() method was recently added to the HttpSession API for exactly this sort of thing. In a Servlet 2.2 environment, however, the easiest way is probably to store a reference to the servlet context in your listener object when it's first created (i.e. before you add it as a session attribute). That way, it can reference the servlet context object in the valueBound() and valueUnbound() methods. Craig McClanahan
Re: Where are the TLD's?
On Mon, 14 May 2001, Johan Compagner wrote: hmmm that's why i don't get them, i don't use the build process. I use VAJ so i just import all the java files to get a complete build. I shall download the binary and src then Note that the generated TLD files *are* in the binary distribution, in the lib directory. johan Craig
Re: What is a good design or idea or utility to create a cachecollection of N number of elements Least Recently Used?
On Sat, 12 May 2001, Vic Cekvenich wrote: What is a good design or idea or utility to create a cache collection of N number of elements Least Recently Used? Say a hash map with synchronized get and put, that would track LRU and lock at the element level? Must be of fixed size and work at element level. Suggestion please and thanks in advance for any comments. Vic There is some work going on in the Jakarta Commons project to define a nice reusable cache API for this sort of thing. It hasn't gotten as far as real live code yet, but that shouldn't be too far away. I'd subscribe to the jakarta-commons mailing list to keep track of what's going on there. As a general note, a bunch of the general purpose Struts utility components (like BeanUtils and the Digester) are being migrated over to Commons because they are generally useful - a future version of Struts will use the Commons versions instead of the ones currently in org.apache.struts.util. Craig
Re: 2 newbie questions..
On Sat, 12 May 2001, Roy Truelove wrote: Hey guys, Quick questions from a newbie.. When the mapping is local to a particular action, the Action class should call findForward on the mapping that's passed in. But if the mapping is a global one, it should call findForward on the instance of ActionServlet (called servlet) that is passed down from the parent Action class. Is this correct? Or does the ActionMapping that's passed in to the perform() method already contain the global mappings? The reason I ask if because I really don't like the idea of having access (and having to use) member variables of a parent class. It makes my OO alarms go off. The example Struts application uses the servlet object, instead of the ActionMapping instance. If you call findForward() on the mapping, the implementation will search first in the local definitions, and then in the global definitions, without you having to worry about it. Thus, your Action can always call mapping.findForward() and not worry about where it's defined. Second question has to do with subclassing an ActionMapping class. As I understand it right now, the default ActionMapping class that is passed into the perform() method is created using the configuration XML file. It contains the local mappings that are defined in the action tag for this path (as well as the global mappings?) This seems to make sense, but in the example application, there is a subclass of ActionMapping calling ApplicationMapping, with some get / set methods. I can't find where this class is used in the application, nor an explaination of it in the walk-through or the user-guide. This class isn't used any more because the standard ActionMapping has everything that the example app needed. (I should remove that class to avoid confusion). However, earlier this evening I wrote a fairly length HOWTO response on how to customize ActionMappings to add parameters that are configured in the struts-config.xml file. This is a very convenient way to pass configuration information to an Action. Thanks in advance for your help. I'm trying to fully understand the example app before trying struts on my own, and these are a few of my hangups. Take it easy, Roy Craig
Re: I18n, xslt and struts...
On Mon, 14 May 2001 [EMAIL PROTECTED] wrote: Would it be feasible to place struts-specific tags into an xslt (for example bean:message key=foo/)? In other words, is there any way to process the jsp code that the xslt returns? I'm trying to do this from the context of a custom tag (so it's the custom tag that receives the jsp code from the xslt) but I'm not familiar if there is any kind of JspReader that processes the jsp code and returns a string. Any advice is greatly appreciated, Thank you, Dallas As tempting as a scenario like this sounds, it doesn't really fit the model of how JSP pages work. The problem is one of timing -- the custom tags that Struts (or any other custom tag library, for that matter) uses are translated at *compile* time into equivalent Java code, in a servlet. What you're asking to be able to do is dynamically create JSP code at *runtime* and then somehow interpret it, which doesn't really work. The new servlet 2.3 and JSP 1.2 specs will make it somewhat easier to do these sorts of things, but most people cannot take advantage of those facilities yet. Craig McClanahan
Re: Hidding .jsp files
On Tue, 15 May 2001, Mikkel Bruun wrote: Hi Guys, Is it possible to make some sort of virtual path, enabling one to hide the actual .jsp pages??? Example, i want to avoid a link like /logon/logonform.jsp replacing it with perhaps /logon (which in turn will point to /logon/logonform.jsp) I tried looking at the globalforwards, but i find the documentation quite lacking (there's an error in the code, btw)...but is this how its done??? Another solution would be to make empty action classes that just returns the succes mapping, but that would be going over the top imho... Can anybody give an answer??? thanks Mikkel Bruun One thing to keep in mind is that, in a typical Struts application, the names of the JSP pages are obscured anyway -- because the form submits go to the controller servlet. For example, walk your way through the Struts example application, and note how many of the locations actually shown have *.do extensions on them ... As a more radical way to hide things (but more for the purpose of discouraging users from setting bookmarks in the middle of an application), I've also resorted on occasion to more radical approaches: * Open the application in a window that doesn't have a location bar * Create a frameset with only one frame in it (so the location bar never changes at all). Craig McClanahan
Re: thread-safe?
On Fri, 18 May 2001, Chris Butler wrote: heya folks, been noticing some errors in our logs when people double-click on buttons and other struts-related html elements. are there any issues with it being thread-safe? is there something that i should be doing with my Actions? any tips or related info would be great. i'm using the 1.0b1 build and haven't used any builds post that date. Your actions *definitely* must be programmed in a thread-safe manner, because there will be only one instance per action element. Therefore, if two or more requests (from the same user or different users) for the same action at once, you have the potential for conflicts. The most important rule is to not use any instance variables in your Actions to store per-user information (it's OK to use them for global information that is shared across all users). Chris Craig
Re: bootstrapping in struts?
On Fri, 18 May 2001, derek harding wrote: I am wondering if there is a way to include a bootstrap class using struts. I know the web.xml is able to load a servlet on startup. But is this the only way to load classes on startup? If you want stuff executed when the application is started, this is the only way that is portable across all servlet containers. In a servlet 2.3 environment (such as Tomcat 4.0), there is a new feature called application event listeners that serve this purpose without having to be servlets themselves. Thanks, Derek Craig
Re: Jakarta-tomcat and struts configuration
On Mon, 21 May 2001, Moore, Amy L wrote: I have some questions and was hoping someone might be able to assist me. I am trying to configure struts with jakarta-tomcat 3.2.1 on my local machine. My tomcat.bat file is configured to read all of the .jar files from one location, which I assume is standard. I was wondering if I could do the same with my .tld files. I am not sure it is good or bad practice to have all of your .tdl files in one central location... but my thought process for doing so would be so that I can have a repository for all tdl files vs. having them in each application's web-inf directory. If this makes sense to implement... what reserved word or variable in Jakarta if any do I use to set the path correctly? Or is this handled in the web.xml file for each application? The mechanism for installing an application onto Tomcat is to place the WAR file (such as struts-example.war) into the webapps directory of Tomcat, and then restart it -- no other configuration is required. When developing your own applications, it is important to understand the requird directory structure, which is described in the Servlet Specification that you can download from http://java.sun.com/products/servlet/download.html You might also want to read the Application Developer's Guide that comes with Tomcat for general instructions on setting up web apps. Any help is appreciated. a Craig
Re: wrong property descriptor returned (#1843)
On Mon, 21 May 2001, Young, Wayne wrote: I just submitted bug #1843. If you have a class MyClass for which a MyClassBeanInfo class ONLY EXISTS IN ANOTHER PACKAGE, then the incorrect beaninfo hence property descriptors are returned. This causes the properties in MyClass to be skipped during population from the request. This was a difficult bug to find. The workaround is to rename the MyClass class to something that won't conflict OR create a MyClassBeanInfo class in the same package to describe the bean. This resolution of this issue was actually a little more subtle than that. The set of other packages that the bean introspection code looks in is actually configurable via a call to Introspector.setBeanInfoSearchPath(). By default, the only package on the search path is called sun.beans.infos. And (at least in JDK 1.3.1), the only class in this package is a class called ComponentBeanInfo -- which is where Wayne ran into problems -- because he wanted to call his bean class Component. The solution to this is to do one of two things: * Call Introspector.setBeanInfoSearchPath() to set some other search path than the standard. * Name your bean anything othe than Component.java. Thanks. Wayne [EMAIL PROTECTED] Craig
Re: Getting Base deployment directory (Tomcat)
On Mon, 21 May 2001, Jeff Trent wrote: Quick Tomcat question: How can I retrieve the base deploy directory name so that I can use absolute URL paths to my action forms within an HREF? What you're really after is request.getContextPath(). This is the prefix to all of the request URIs that belong to your web app. Struts takes care of figuring that out for you in many of it's custom tags -- for example: html:link page=/menu.jspClick me/html:link in an application installed on context path /foo will generate a href=/foo/menu.jspClick me/a Thanks, Jeff Craig
RE: tool for the struts-config.xml
On Wed, 23 May 2001, Gogineni, Pratima wrote: Hi, This could be done similar to the way they serialize the user database xml file in the struts example but this is what I saw under the changes and bug fixes section of the struts example application: Removed any attempt to save the pseudo-database at application shutdown, because there is no portable mechanism to accomplish this task. a. does anyone know why the mechanism is not portable? b. if above is true we will face the same problem when you try to serialize the struts-config.xml file? The serialization part wasn't the problem. The challenge is that there is no portable way to *write* to a static resource within your web application. For example, you cannot assume that your webapp is running from an unpacked directory -- it's quite possible to run from a WAR file directly, or from some other structure (I understand that Oracle deploys static resources as BLOB objects in the database). Now, a development tool for creating struts-config.xml files would not have this limitation, because you'd just let the user tell you the filename under which it should be saved. pratima Craig -Original Message- From: Mikkel Bruun To: '[EMAIL PROTECTED]' Sent: 5/23/01 12:56 AM Subject: SV: tool for the struts-config.xml It wouldnt be too hard, considering the already implemented admin actions... Give it a try!!! Mikkel -Oprindelig meddelelse- Fra: Alexander Jesse [mailto:[EMAIL PROTECTED]] Sendt: 23 May 2001 09:55 Til: struts-user Emne: RE: tool for the struts-config.xml Hi, somehow that would make a nice and usefull demo-app (a web-app using struts to setup the config-struts.xml) Maybe when I have some time...(too much ideas and too less time) Alexander -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]] Sent: Wednesday, May 23, 2001 7:11 AM To: [EMAIL PROTECTED] Subject: Re: tool for the struts-config.xml Hi Lorena You could use XMLSpy to show and edit xml-Files and their dtd. regards Mike LORENA MASSIMO [EMAIL PROTECTED] on 22.05.2001 14:45:28 Please respond to [EMAIL PROTECTED] To: '[EMAIL PROTECTED]' [EMAIL PROTECTED] cc: Subject: tool for the struts-config.xml Hi does anybody know if exists a tool (better if visual) to manage the struts-config.xml file? thanks Max
Re: Forums???
On Tue, 22 May 2001, Spencer Smith wrote: This email list server is kind of weak in terms of threads and discussion. Should be moved over to a Forums. I built a really good robust one. If I get some requests, I can implement it and host it for free. Anyone interested in moving this over to a Forums? Email list servers don't have anything to do with threads -- intelligent mail readers do. It's trivially simple to set up a mail client like Netscape Communicator or Outlook Express to filter incoming messages for each mail list into a separate folder, and then set the sorting sequence to threaded. In addition, switching to forums (as in NNTP) would disenfranchise a large number of subscribers who are behind firewalls that prevent newsgroup access. Craig
Re: New ActionMapping Class
On Tue, 22 May 2001, Michael Binette wrote: I created a new GenericActionMapping class that extends ActionMapping. I added one property, processAction with public getter and setter methods for it. I then set the mapping property in web.xml for the struts Action servlet to my new GenericActionMapping class. The log when I run TomCat correctly shows it using my new GenericActionMapping class. But, if I add processAction=whatever to my struts-config.xml, within the action element, I get a SAXParseException, Attribute processAction is not declared for element action. This error happens because your struts-config.xml document now violates the DTD. How do I get this to work? That's what the set-property element is for: action path=... ... set-property property=processAction value=yadda yadda/ /action This little trick lets you extend the syntax of an ActionMapping, and add new configurable properties, without having to modify the DTD. -- Thanks, Michael Binette Craig McClanahan
Re: digester and whitespace in XML text body
On Wed, 23 May 2001, Nick Afshartous wrote: Hi, I'm using the digester to process the nested content in XML tags and am noticing that the leading/trailing whitespace doesn't seem to be removed as advertised in the doc. Hmm. You're correct that the whitespace isn't being trimmed. I also agree that this would be generally useful -- although there may be some apps that prefer to keep it. However, could you point me at where in the docs we advertise that this is supposed to be done? (If we say so, then it's just a bug that needs to be fixed -- otherwise, we'll probably need a way to configure the desired behavior). Craig
Re: digester and whitespace in XML text body
On Thu, 24 May 2001, Mark Simms wrote: I believe the digester must be rewritten to support the JAXP 1.1 specs. It's already been done in the Jakarta Commons version of Digester. Struts will switch to this at some point *after* 1.0 final -- the advertised XML parser requirement for Struts 1.0 says JAXP 1.0 or better. wow, almost everything in digester is now deprecated... That's because I marked the entire class as deprecated because of the above. Don't worry too much about it though: * These classes will remain until well after 1.0 final is released * The functionality will be the same (other than the switch to the JAXP/1.1 minimum for the parser), so the only thing you will need to change in your source code is the import statement. Craig
Re: Non-matching extension tags
On Wed, 23 May 2001, Steven Leija wrote: Hello All, Can anyone help me with this problem? I'm trying to have a link open up a custom browser window using a struts html:link tag, but I'm getting a Non-matching extension tags error. Here is my code: html:link href=window.open(/title.do + ?MOVIEID=%=MOVIEID%, title, fullscreen=no, toolbar=no, status=no, menubar=no, scrollbars=no, resizable=no, directories=no, location=no, width=550, height=350, left=200, top=200)%=TITLE%/html:link Your problem is that the parser can't figure out which quotation marks are which, since you're using them both around and within the href attribute. Try switching to single quotes (href='window.open...') instead. Thanks in advance! Have a good one. Steven Craig
RE: struts framework without its TAG LIBRARIES in jsp pages how?
On Thu, 24 May 2001, Sanjay Melinamani wrote: but my question is how? If we use HTML, how is the ActionForm gets delegated to Action::perform() method? I guess we have to explicitly use the ActionForm bean and call its set methods...I am not sure about this ! Automatic form bean population happens when a request is received by the controller servlet. It doesn't matter what kind of a client created the request -- it just looks like a URI with a bunch of parameters. So, in your HTML, just create a form with input fields in the usual way, and the Struts controller servlet will be happy. You will have probably to emulate some of the other functionality of the Struts custom tags (like redisplaying the old values from a form bean) if you don't want to use the tags from struts-html.tld -- but you can certainly do so if you want to. If u suggest me as how is the ActionForm will be delegated to the Action::perfom method, that would be great ! thanx sanjay Craig McClanahan
RE: dynamic button names
On Thu, 24 May 2001, Deadman, Hal wrote: It looks like this was broken in a recent update. The ButtonTag.java needs a doAfterBody() method in order to set the text instance variable to the body content. That will make it work like the SubmitTag.java. You should submit this as a bug on Bugzilla. http://nagoya.apache.org/bugzilla/ If you can't do that, let me know and I will do it. This was just reported in Bugzilla, and has been fixed in tonight's nightly build. It will also be fixed in the 1.0 final release. Craig
Re: How do you use templare user roles
On Thu, 24 May 2001, Neil Blue wrote: Hello, I am looking at strut templates, and I am confused as to how you can set the users role in a template. There does not see to be any way to set the current user role, but there does seem to be ways to test it. Please could anyone help. The user role being tested is the value returned by request.isUserInRole(). In turn, this is useful only if you are using container-managed security as described in the Servlet Specification at http://java.sun.com/products/servlet/download.html If you are coming to JavaOne next week, I will be hosting a BOF on Thursday night specifically to discuss authentication and access control: BOF #1291: Approaches to User Authentication and Access Control in Web Applications (Thursday 06/07, 7:00pm) I'll make the slides available afterwards for those who cannot attend. Thank you Neil Blue Craig
RE: Using tags from Java code
On Thu, 24 May 2001, Young, Wayne wrote: We put reusable functionality in utility classes and call those from the custom tag. In fact, many of the Struts tags themselves are designed like this. For example, nearly every tag that deals with beans and properties ends up calling methods on BeanUtils and PropertyUtils. The challenge with John's original question (can we create a tag runner outside of a JSP page) is actually pretty important, when you consider the issue of how to unit test JSP custom tags. The hard part is that there is a very large amount of context that you have to set up to make a custom tag run -- you end up almost having to provide the runtime environment of a servlet container to fully test these things :-( Wayne [EMAIL PROTECTED] Craig McClanahan
RE: tricky mapping
On Thu, 24 May 2001, John Schroeder wrote: Yuri, I have run into something similar with Excel files, but I'm not sure if it will address your current issue. My problem: when users run a report, return to them an Excel worksheet instead of HTML. Our particular approach used JSP's to easily handle the formatting of the Excel doc, but you by no means would need to do so. You just need to set the proper Content-type and Content-disposition headers. %@page contentType=application/vnd.ms-excel% % response.setHeader(Content-disposition, inline; filename\myreport.xls\); % Now when a user chooses to save the file, the default name is myreport.xls, and the content returned is of the proper MIME-type. Hope this helps! --John Like John, I've used the Content-disposition header for some cases like this -- as long as the browser pays attention, it works like a charm. For browsers that don't work correctly with it, though, there's still a strategy for getting the effect Yuriy was after (the prompted filename is the right thing). It goes like this: * Map the Struts controller servlet to a path pattern (/execute/*) instead of an extension (*.do). * This means that a typical action request might be something like /execute/showAttachment instead of /showAttachment.do. * Now, path mappings let you do something that extension mappings don't -- you can add extra path information after the part that selects the action, so you can say something like: /execute/showAttachment/1.txt and your /showAttachment action will still get executed. * When the user goes to save this request, the default filename will be 1.txt. Craig McClanahan -Original Message- From: Yuriy Zubarev [mailto:[EMAIL PROTECTED]] Sent: Thursday, May 24, 2001 12:33 PM To: [EMAIL PROTECTED] Subject: tricky mapping Hello everyone, I'm not quite sure that my question is truly struts-related, but since I'm developing a web-application using struts as a framework, I decided to post it here. A little proem. I'm in the middle of developing a web-mail facility and I've come to the point where I have to display mails' attachments. In general everything is fine except one minor but annoying thing. When a user double-clicks on a attachment link and selects Save target as..., a browser presents Save as dialog and offers a default name for requested object which looks like EmailPart, because the syntax of the link is as following: http://domain-name/EmailPart.do?part=1; I know the name of the requested attachment file in advance but I don't know how to fit it into the URL so that a browser can offer that name instead of EmailPart. On yahoo web-mail a link that points to attachment looks like this: http://yahoo_address/ym/ShowLetter/Account%5fmonitor%5fwork%5fflow.doc?box= InboxMsgId=1915_4666388_102413_741_67881_0bodyPart=2filename=Account%5fmo nitor%5fwork%5fflow.docdownload=1YY=2060order=downsort=datepos=0 Bearing in mind this syntax I tried to make my link looks like: ...domain-name/EmailPart/File_name.ext?part=1 And of course I failed, because the server (tomcat) treated EmailPart as a directory (I assume so) but not as action. So I would like to ask if anyone came across this problem and found a solution. Any suggestions would be highly appreciated. Thank you for your time. Best of luck, Yuriy Zubarev __ Do You Yahoo!? Yahoo! Auctions - buy the things you want at great prices http://auctions.yahoo.com/
Re: Setting a user role
On Fri, 25 May 2001, Jon.Ridgway wrote: Hi All, Is it possible to programmatically set a users role for use with request.isUserInRole (role). I would like to do this so I can started using the role based templating, without having to dig into app/web server specific security features. Any help much appreciated. Jon. No, the values returned by isUserInRole() -- along with getRemoteUser() and getUserPrincipal() -- are set by the servlet container when you are using container-managed security. Craig McClanahan
Re: Removing session-scoped form from the session
On Fri, 25 May 2001, Fabien Modoux wrote: I would like to know how I can remove a session-scoped form from the current session once I don't need it anymore. Is it stored in the session under the form-bean.name attribute in the struts-config.xml file? If yes, removing the form from the session makes it available for other requests directly? Yes, it's stored under the name value you list, so just call: session.removeAttribute(formbeanname); to remove a bean named formbeanname. Thanks, -Fabien Modoux Craig
Re: Mutiple logical struts-config.xml and ApplicationResource property files.
On Fri, 25 May 2001, Bauer, John wrote: We are contemplating creating a brandable web application that will have customized navigation, templates, color schemes, etc. based on the role of the user. We would like to use struts to make this happen. It seems like we might want to have multiple struts-config.xml and ApplicationResource property files for each user category/role to facilitate this. Is this possible with struts, and how would you reference the proper configurations at run-time given the user role? Running multiple controllers in the same webapp is a highly requested feature, and it will be on the list of enhancements for Struts 1.1. Thanks, John Bauer Craig McClanahan
Re: I want to override some struts classes
On Fri, 25 May 2001, Jonathan wrote: Hello. I am placing more debugging in the struts source files and I want these new classes to override the ones in the struts.jar I have placed the edited ActionServlet class in the WEB-INF/classes/org/struts/action/ directory. It should be working right? Its not. I also have 2 war files deployed as per the instructions on installing struts. Are they interfering. What should I be doing? I am using weblogic 6 on solaris In the servlet 2.3 specification (which Tomcat 4.0 supports), the container is *required* to make sure that a class in WEB-INF/classes will override a class of the same name inside a JAR file in WEB-INF/lib, so what you are describing would work there. However, WebLogic 6 implements the servlet 2.2 spec, where this requirement doesn't exist, so whether or not it works is dependent on how they decided to implement their class loader. Craig
Re: About Japanized web page of Struts
On Mon, 28 May 2001, Ted Husted wrote: As long as all the copyright notices are kept in place, and you are contributing this work to the Apache Software Foundation, then this would be fine Toshi. We appreciate your help! Definitely! And, once you have the URLs of the Japanese translations available, I'd be happy to add them to the Struts Documentation (and to the Struts web site). -- Ted Husted, Husted dot Com, Fairport NY USA. -- Custom Software ~ Technical Services. -- Tel 716 737-3463. -- http://www.husted.com/about/struts/ Craig McClanahan Hello, Dear everyone. I'm Toshi Tabata who is a system engineer of Japanese company called Sun Japan. Nice to see you. I would like to have a permission from you about publishing Japanized web page of Struts. Since this April, I have started translating your web page, Struts project to Japanese. It's finished excepting some pages. (e.g. Tag library Guide, Old document...) Using that translation, I would like to introduce Struts for Japanese how its use has great effort for making applications. I'm planning that I would like to leave the un-translated part as in English, which keep links to original. If you will accept this proposal, I will publish Japanized Struts web page as soon as possible, and announce to you where I published. If there is any trouble about this plan, or any questions, Please let me know. I'm looking forward hearing from you. Thank you. Best Regards, Toshi Tabata -- Toshi Tabata ([EMAIL PROTECTED])
Re: html:button and html:radio in 1.0b2
On Wed, 30 May 2001, Klaus Thiele wrote: 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? Both of those were bugs, and both were fixed today -- they'll be correct in the 20010602 nightly build (as well as in the 1.0 final release when it comes out). thanks klaus Craig
RE: Multipage forms and validation
It hasn't been discussed by the other volunteers and Struts users/developers exactly what features the client/standard validations should have. I'll send an e-mail to get the discussion started. David --- Niall Pemberton [EMAIL PROTECTED] wrote: David, I see your on the 1.1 ToDo list as a volunteer for Standard Validations and Client Side Validations - is it likely your validation framework is going to be adopted for Struts - and if so how close is what you're offering now to what Struts will have in 1.1? I'm just wondering whether to plough on with what we've got or wait for what might be coming in Struts. Niall -Original Message- From: David Winterfeldt [mailto:[EMAIL PROTECTED]] Sent: 31 May 2001 23:32 To: [EMAIL PROTECTED] Subject: Re: Multipage forms and validation I've done some work on a validation framework for Struts that is based on defining rules in an xml file. Right now it depends on associating a field with a page and setting a variable in the JSP page to set what page you are on. I had a long discussion with someone on how to make it not depend on associating fields with a page so it was separated from the view, but I haven't had time to finish doing that. The biggest problem is that if you have a session scope bean then you still absolutely have to know if there is a checkbox field on the page so you can reset it. The best idea to get away from page numbers was to have a custom ActionForward for each page and pass in the checkbox fields to be reset along with the action. Here is the url for what I currenty have working. There is a multi-page example in the validator.war and jdbc-validator.war in the webapps directory. http://home.earthlink.net/~dwinterfeldt David Winterfeldt --- Lukasz Kowalczyk [EMAIL PROTECTED] wrote: Hi. I'm trying to employ Struts to help me build multi-page forms. Those forms consist of all kinds of inputs, including multipart. The questions are as follows: 1. How can I validate forms which I know will never set all of the required elements at a time since the required elements can span multiple pages? I could check which submit was clicked and then validate just a subset of form elements but I think it's not very Struts-oriented, and secondly this makes validate() method dependent on specific placement of form inputs (when I decide to move some field to another page I have to modify validate()). 2. Can I use the same Action class to handle multipart and non-multipart request? Will performance hurt because of this? -- £ukasz Kowalczyk __ Do You Yahoo!? Get personalized email addresses from Yahoo! Mail - only $35 a year! http://personal.mail.yahoo.com/ __ Do You Yahoo!? Get personalized email addresses from Yahoo! Mail - only $35 a year! http://personal.mail.yahoo.com/
Struts status items list /\/\/\
Can any one of you put together a list? We need to know: 1) what can currently be thrown out (assuming I have the most recent evenings build) 2) what are, and where canweobtain all of the recently contributed pieces which are under consideration, being worked on or tested (the Token mechanism submission, the iterate patch, the message patch, validation, bean factory, auto beans, etc. etc. etc.) 3) what is next item that has been decided but has not been included in any nightly build. 4) what specific areas are we currentlylooking at to solve Just a brief list for the rest of us to have an idea of current state and the direction in thenear future. It will effect what we are personally building. Cheers. Jonathan
