Struts TLD problem
Hi, Assume I have 2 jsp(s), header.jsp and content.jsp In header.jsp, I have: <%@ taglib uri="/WEB-INF/tld/struts-bean.tld" prefix="bean" %> <%@ taglib uri="/WEB-INF/tld/struts-html.tld" prefix="html" %> <%@ taglib uri="/WEB-INF/tld/struts-logic.tld" prefix="logic" %> <%@ taglib uri="/WEB-INF/tld/element.tld" prefix="element" %> In content.jsp, I include header.jsp like the following: <%@ include file="../common/header.jsp" %> The problem is, when I surf to content.jsp, all HTML tags can't be rendered, they just don't show up. Every HTML tag which using Struts-HTML havn't show up but if I put those <%@ taglib uri=XXX statement in content.jsp, everything work fine. In web.xml, I already declare all tag lib and the URI are all correct I also try using JSP include and toogle between absolute and relative path, no luck at all Any help would be appreciated thanks
Re: Strange Struts tld problem
sorry, the include in my first mail was wrong, it should be: <%@ include file="../common/header.jsp" %> and it still can't locate those tld On 10/20/05, Wendy Smoak <[EMAIL PROTECTED]> wrote: > > From: "Koon Yue Lam" <[EMAIL PROTECTED]> > > > Assume I have 2 jsp(s), header.jsp and content.jsp > > > > In content.jsp, I include header.jsp like the following: > > <%@ include file="../common/Header.jsp" %> > > The include isn't working. Possibly because your file is named 'header.jsp > ' > and you're including 'Header.jsp', (watch the case!) or possibly because > it > isn't where you think it is relative to content.jsp. > > In addition, unless you're on Servlet 2.2, you don't need to put the tlds > under WEB-INF and map them in web.xml. Just use the URIs such as > <%@ taglib uri="http://struts.apache.org/tags-html"; prefix="html" %> > and the tld file that's in struts.jar will be used. > > -- > Wendy Smoak > > > > - > To unsubscribe, e-mail: [EMAIL PROTECTED] > For additional commands, e-mail: [EMAIL PROTECTED] > >
Strange Struts tld problem
Hi, Assume I have 2 jsp(s), header.jsp and content.jsp In header.jsp, I have: <%@ taglib uri="/WEB-INF/tld/struts-bean.tld" prefix="bean" %> <%@ taglib uri="/WEB-INF/tld/struts-html.tld" prefix="html" %> <%@ taglib uri="/WEB-INF/tld/struts-logic.tld" prefix="logic" %> <%@ taglib uri="/WEB-INF/tld/element.tld" prefix="element" %> In content.jsp, I include header.jsp like the following: <%@ include file="../common/Header.jsp" %> The problem is, when I surf to content.jsp, all HTML tags can't be rendered, they just don't show up. Every HTML tag which using Struts-HTML havn't show up but if I put those <%@ taglib uri=XXX statement in content.jsp, everything work fine. In web.xml, I already declare all tag lib and the URI are all correct I also try using JSP include and toogle between absolute and relative path, no luck at all Any help would be appreciated thanks
[OT] For those who love fur, please take a look
** Be prepared, rate R ** http://hk.geocities.com/blood1213/fur.html - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Struts 1.1 UTF-8 problem
Hi, here is the situation: Tomcat 5.25 MySQL 4.1 Struts 1.1 when I use Struts form to get some form data submited by a webpage, it is encode in latin but not utf-8. I have already set the page encoding to UTF-8 in my JSP. I need to new a String specific the encoding to UTF-8 in order to save unicode data into MySQL Is there any way to tell Struts encode all data in UTF-8 ?? btw, display UTF-8 character is fine Thanks - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: About *.do
ok, I got it, thanks a lot ! - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: About *.do
so I need to map all actions of my webapp? something like /login map to /login.do ??? Regards - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
About *.do
Hi ! How can I access an action of its name instead of its "name.do" ? eg. localhost/MyApp/login I don't want the ".do" at all thanks - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: About Action Form
ok, I get your point now, ^^ thank for help ! - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: About Action Form
thanks to Frank ! and Michael: what u mean an application level multi-threaded program? is it a background deamon / process to store data that likely to be store by session ? - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: About Action Form
oh, so I need some way to store data in the respond object I know session can be help, is it a right way to do? It is not very big object but it would be an array of String (which contains user's multiple selection) thanks for your help, ^^ - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
About Action Form
Hi, suppose I have 2 actions which each has its own action form A1 will have F1 A2 will have F2 and we have JSP1, JSP2 and JSP3 it is like a 2 steps wizard, user first access JSP1 and when submit, A1 is executed and populate F1, it then forward to JSP2 user will select some data in JSP2 and when submit, A2 is executed and populate F2 The question is the data need to populate F2 is determined by what user select on F1, but only one action form can be associated to action. How do A2 know what user has selected?? any help will be appreciated - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: never, ever bury an exception!
Hi !! I agree with all of you but still have a question. If my application is divided into a few layers, say: Web <---> BizDelegate --- <---> EJB |__<--> DAO / server side program My practice is catch all SQLException in DAO(s), but never throws excepion from my DAO, all DAOs will return primitive, at least a boolean to indicate the query is success or not It is because there is nothing to do with the above layers when something goes wrong in DB. However if every method have a try -- catch block, especially in EJB and DAO layers, it would become a speed lose. My practice is to catch ALL kind of Exception in just BizDelegate, whenever an exception is caught, it return some primitive to the above Web layer. Because the data between Web and BizDelegate can be throught network, sending an Exception would be much inefficient than just True of False. The bottom line is, my Web layer doesn't need to know what going wrong, it just need to know IS IT going wrong. Then forward to some error pages, or maybe retry one more time. But it still can't suit to all situation, some methods in BizDelegate will thorws Exception of the type BizDelegateException. When the web layer can do something to the exception, BizDelegate will include the Exception thrown from under layer to the cause of BizDelegateException, then throw up to Web layer. Is it sounds good ?? Regards - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: how not to use actionform and pass things around
Hi ! I don't see a good reason that you are not going to use action form. Since Action form is just a Java bean, which is pretty much the same as the "Object" that you want to pass around and about this: "use an ActionForm I have to write the entities of my ActionForm into the JSP for it to be picked up" If you use plain Object to pass around JSP, u still need to declare those object in order to use it (). Which means u still need a Java bean in order to use it in JSP, and that's why Acton form is here to help u! lastly, can u sure that your site will only has 2 page in the future? and won't do some validation? hopes this help Regards - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: About Tiles
thanks for the help ! I will spend some time on the above links ! Regards - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: About Tiles
thanks David ! after reading the doc. in Struts, Tiles site, I found very little resource talking about Tiles... I know I need a template, a definition etc... but I still can't figure out how to glue them together ! The problem go worse if I want to use Tiles with Struts, I just don't know how... any link, tutorial ?? However I think using Tiles and OSCache seems to be a very attractive solution for my situation. Regards - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
About Tiles
Hi, I want to build a webpage using tiles, the structure is: Header Body Footer super classic layout but I have one question, if the content in Header and Footer are read only and will be nearly the same throughout entire user session. How can I just reload the body part? and keep the Header and Footer static? (the content of Body is generated according to the content of Header) however, each user will have a page to modify their info (name, age...), and after these changes have made to DB. Both Header and Footer must force to reload so how can I trigger reload of Tiles as I wish, but keep those tiles static for the rest of time?? Best regards - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: Struts, checkbox and optionally displaytag
Hi !
>From your question, I guess that you need a multiple of checkboxes, so
you need instead of
for your reference:
http://struts.apache.org/userGuide/struts-html.html#multibox
and a wonderful example:
http://j2ee.lagnada.com/struts/multibox-example1.htm
you would need an action form, which contains 2 arrays (normally they
would be String array)
eg. an Action form called FrmMultiBox with properties :
String [] options; String[] selected;
options[] is holding the "options" of the checkboxes that user going to select
selected[] would be populated by Struts after form submission, value
of selected[] is the value of "checked" checkboxes.
so if options = new String {"1", "2", "3"} (you can made them final or
load the values from another Action dynamically from somewhere else)
in your JSP:
if user check "1" and "3" then selected[] would contains "1" and "3"
(Thanks Struts !)
and don't forget the formal getter and setter method of your Action form
Hope this help
Regards
-
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Re: not quite struts: handling Images
Hi all ! I have similar problem to ron1 and these mails really help ! However if I want to extract the exif metadata of JPEG, can it be done in Java without third party component? Regards - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: About Struts + JBoss preference issue
yeah, I think so, thanks for advice ! - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: About Struts + JBoss preference issue
Oh! thanks for all of these help ! I don't expect over 10 mails in one night to this issue~~ Maybe becasue the timezone because I am from Hong Kong, ^^ [About Struts] After some testing, I prove myself wrong ! The delay wasn't cause by Struts, it is cause by JSP instead. The delay time is the time that use to compile and transform the JSP to servlet, sorry for the silly question because I haven't read through all the spec. ^^ [To HG] I said the problem deal with cluster means: assume we have 3 servers (S1, S2, S3) form a cluster and one Struts plugins deal with home object caching (P1) when the application start up, P1 with get all home interfaces from the cluster and also create all home objects and cache them. so if P1 get an object (O1) from S1 and cache it, this O1 is indeed an instance created by S1 and if S1 go down, O1 would still reference to S1 and become NULL The question comes to if i call some method to O1 at this time, will the cluster manager redirect the request to another machine?? I don't think it will hapen because you locally cache the object reference. But if you get the home object from the JNDI tree again, I am sure the cluster manager will preform a failover and redirect all request target to S1 to another machine do I make any sense? great to have this disussion Regards - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: About Struts + JBoss preference issue
some drawbacks I can see: 1. longer server start up time (but it is OK) 2. If the application scale up to cluster, this design seems can't deal with it (because the client always invoke remote object that was downloaded to cache, which is not dynamically locate by app. server in a cluster environment.) however if it is a single JVM application (like mine, ^^), I will consider it a try thanks for help Regards - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: About Struts + JBoss preference issue
Thanks ! It seems like a great solution and I will try that out tonight, thanks for help ^^ Regards - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
About Struts + JBoss preference issue
Hi ! My application has change from Struts + Tomcat to Struts + Jboss 3.X I create various struts Actions to deal with incoming request, in the Action class, it preform remote lookup of session bean's home interface and create, destory ... it. My session bean has an DAO attach to it to preform database related stuffs NO entiy beans in my application since transaction is not a problem and most DB query are read only The question is the speed, it is much slower when I request an Action instead of directly request a servlet. Is it normal ? I don't mind a little bit preformance tradeoff but I want to know the delay is caused by Struts or something else. Any help? Regards - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: Datasource problem again..
yes, clearly a context file for each web app is a better / wiser choice, thanks for the advice ! - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: Datasource problem again..
Tthanks for the help for all of u ! Finally I get it done, I create a element and nest a with details of MySql in server.xml and it just work smoothly~~~ Regards - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: Datasource problem again..
thanks for the help ! I will give it a try - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: Datasource problem again..
Thx !! I will try it out tonight after work !! and let u know if I sucess or not, ^^ - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: Datasource problem again..
Thx ! Since I am using Tomct 5 with auto-depoly, my Webapp DOESN'T has a element in server.xml. I think I will has a try to setup in , or should I manually all a element of my Webapp in server.xml?? Regards - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: Datasource problem again..
Yes, it helps and I know I can get it done if I set the context element in server.xml, but if I set the datasource in server.xml, do I need to set the in struts-config.xml again?? If I am right, I think if datasource is setup in server.xml, it has the scope of entire Tomcat, that means all webapps can use that datasource. Also it can be retrieved by JNDI. If the datasource is setup in struts-config.xml, the scope becomes struts only and is specific to only one webapp, and it can't be retrieved by JNDI. So I can setup datasource in both ways, setup in server.xml has much more flexibilty and benifit from JNDI, why do I need to setup in struts-config.xml?? once again, thanks, ^^ Regards - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Datasource problem again..
Hi !
I have try the follow to retrieve a datasource from Struts using JNDI:
Context initCtx = new InitialContext();
Context envCtx = (Context) initCtx.lookup("java:comp/env");
DataSource ds = (DataSource) envCtx.lookup("jdbc/kiss_web_news");
but it doesn't work
it is my struts-config,xml:
Do I need to modify the web.xml under $Tomcat/conf ?? It seems that
Stucts doesn't registry the datasource to JNDI and I always get a null
pointer of datasource.
any help?
Regards
-
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Re: About datasource
^^ thanks so much ! I am going to have a try and let see what will happen (maybe somemore question, ^^) Regards - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: About datasource
Hi, after some thinking, I have another problem, ^^ If I am using an Action (which extent the Struts' Action class), I can get the Datasource by calling getDataSource() But now I want to write my own data assess object which shouldn't extent Action, I don't know what way I can get the datasource from the pool. any help?? Regards - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: About datasource
Thanks so much !! u really helps and quick response !! - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
About datasource
Hi ! I have successfully use struts to connect MySql but I wonder do I using the database connection pool, or just a new connection for each request?? All I did is very simple stuffs and I follow strict to the database How-To section of struts doc. How can I know I am actually using a connection pool ?? Regards - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: Struts design problem, any help?
ok then , I try to figure out myself thanks a lot, ^^ - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: Struts design problem, any help?
thanks for your kind reply For example, for a classic online shop, 1 BD for customer (for check-in, check-out, list product etc...) 1 BD for admin (for update product price, stock etc...) 1 BD for normal user (for web forum, enquiry, feeback etc...) does it looks good? so if my BD doesn't map to exactly one business object that implement the service, like my BD for customer need services from more than one business object (at least one for product, and one for shopping cart) is it the role of BD to handle various object ? or use some others pattern ?? - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: Struts design problem, any help?
Hi, me again, ^^ I want to know if I implement business delagate as POJO singleton, can u give me some advice on how to multi-thread this business delagate to various request ??? and how about caching ?? How to cache the handler of a business service ?? - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: Struts design problem, any help?
sorry, one more question.. I have read the business delagate pattern a while but still have little confuse Do the system has only one business delagate to control the mapping of request to business service OR the system has the same number of business delagate and business service?? so one service would has their own business delagate any sample code?? Regards - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: Struts design problem, any help?
Thanks for the reply and I want to know more... ^^ I know what means by Business delegate Factory, but what is "a plugIn for your factory" ?? Do I need to implement Business delegate Factory by myself? Will Struts help me in some way?? Regards - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Struts design problem, any help?
Hi, I am very new in Struts. Can anyone give me some suggestion on the design of a Service Locator ?? I use ActionServlet as a front controller, and dispatch request to various Action, then I want all the Actions access my business tier only by the Service Locator, which return an interface of the requested service. I don't want to use session bean currently but I want my design can upgrade to session bean easily. So I think using a Service locator and return an interface of a business service is similiar to the EJBHome / EJBRemote concept. Which I can easily upgrade my application to using session bean. However how can I implement the Service Locator? Is it a POJO / Servlet / or another Struts Action ?? I try to implement it as a POJO Singleton and then share by many request, but do I need to program the multi-thread part of this POJO Service Locator by myself ?? What happen if a large number of concurrent request to that Service Locator? Any help would be appreciate Regards - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
