Flex and JSP tutorials and articles?

I found one that doesnt really answer most of my questions: http://cookbooks.adobe.com/index.cfm?event=showdetails&postId=7746
I am looking for more information on setting up flex applications that can sit ontop of JSP pages and utilize the code to interact with the back end data base to display, gather, send and retrieve data. I like the whole "not having to refresh when new data comes in" concept.

It depends on how Flex is getting the data, and how it's generated. If you refresh the page, then the Flex app will be reset, and won't have any knowledge of previous data. One thing you could do is store the data on the server and access it via some web-service calls (eg AMF or REST). The server could manage the user's session, store data, and generate or retrieve previous data.

Similar Messages

FLEX and JSP

so for my senior design project i designed a web project using java servlets and JSP pages. For one part of the project to visualize some data i used FLEX to create GANTT Charts. Now that it's done i was looking into how to embed that flex code into JSP page and i found on ADOBE website links for taglibs, however right now it redirects me into a page of Adobe LiveCycle , which cost a lot of money.
Is there another way to embed flex into jsp? or some other way to get just the taglib for flex?
Thank You

It depends on how Flex is getting the data, and how it's generated. If you refresh the page, then the Flex app will be reset, and won't have any knowledge of previous data. One thing you could do is store the data on the server and access it via some web-service calls (eg AMF or REST). The server could manage the user's session, store data, and generate or retrieve previous data.

Flex and Coldfusion error handling

Hello! I was wondering if someone could point me in the right direction regarding error handling in a Flex app thats using an HTTPSERVICE RPC to a Coldfusion component.
If a user is entering form data in Flex and clicks submit... the data is sent via the HTTPSERVICE send method as XML to the CFC. But what if there is a Coldfusion SQL insert statement error? Say a user enters a character in a number field (now i know the best thing to do would be to have actionscript ensure that the values entered are numbers but lets keep that aside just for this example). How could I alert the user to let them know the CFC encountered a SQL error? Or better yet... alert them that everything went "A" ok and their data was successfully submitted.
I originally thought to put CFTRY and CFCATCH around the CFC code. I could do that fine, but had trouble passing back a message string so that FLEX could use it in an Alert.Show window.
Thanks!
-BosDog

Hey Mike,
Sorry after I posted I thought "this may be a question for CF guys as well".
I definitely use and love RemoteObjects. Its great for binding to datagrids and to run SQL to return data from the server back to Flex. I've struggled with successfully passing variables from Flex to CF using RemoteObject though. Say a dataform with 5 text fields & 2 combo box dropdowns.
I think you may have forgotten to post the link to the article for me to read... i didnt see it in your last post?
Thanks!

Need information about Adobe Flex and WD

Hello SDN!
We try to decide is it possible to use Adobe Flex with WD java for us. So I need to know information like:
1) hardware requirements
2) software requirements (e.g. which versions of SAP NetWeaver are supported, which IDEs are supported and so on)
3) what about licenses - is it free or it necessary to buy it?
4) Adobe Flex and Adobe Flash are the same things or not
5) any other useful information
regards, Lev

Hi Tarun,
You can follow these links for more information
http://help.sap.com/saphelp_nwce711/helpdata/en/48/825afcf53d3ff6e10000000a42189c/content.htm
http://www.adobe.com/devnet/sap/articles/understanding_richislands.html
Hope it helps.
Regards
Uday

Flex and J2EE

I am using the Flex 3 SDK. On the server side, I am using
Java.
I looked at the Flex 3 SDK documentation and I found the Flex
3 compiler modules for Apache and IIS:
http://livedocs.adobe.com/flex/3/html/help.html?content=apache_1.html
Is there a Java servlet filter that can compile MXML files on
demand?
Thanks in advance.

I found the FlexMxmlServlet.
1) visit
http://opensource.adobe.com/wiki/display/flexsdk/Downloads
2) download: FlexModule_j2ee.zip
The zip file contains the FlexMxmlServlet and a Flex JSP Tag
Library.
Curiously, I can't find the source code for the
FlexMxmlServlet or the Flex JSP Tag Library. I looked in Adobe's
Subversion repository but the code is not there.
Anyway, here is a web.xml file that shows how to use the
servlet and the tag library:
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE web-app PUBLIC "-//Sun Microsystems, Inc.//DTD
Web Application 2.3//EN" "
http://java.sun.com/dtd/web-app_2_3.dtd">
<web-app>
<display-name>Flex Webtier
Compiler</display-name>
<description>Flex SDK Webtier Compiler Template
Application</description>
<context-param>
<param-name>flex.class.path</param-name>
<param-value>/WEB-INF/flex/hotfixes,/WEB-INF/flex/jars</param-value>
</context-param>
<servlet>
<servlet-name>FlexMxmlServlet</servlet-name>
<display-name>MXML Processor</display-name>
<description>Servlet wrapper for the Mxml
Compiler</description>
<servlet-class>flex.bootstrap.BootstrapServlet</servlet-class>
<init-param>
<param-name>servlet.class</param-name>
<param-value>flex.webtier.server.j2ee.MxmlServlet</param-value>
</init-param>
<init-param>
<param-name>webtier.configuration.file</param-name>
<param-value>/WEB-INF/flex/flex-webtier-config.xml</param-value>
</init-param>
<load-on-startup>1</load-on-startup>
</servlet>
<servlet>
<servlet-name>FlexSwfServlet</servlet-name>
<display-name>SWF Retriever</display-name>
<servlet-class>flex.bootstrap.BootstrapServlet</servlet-class>
<init-param>
<param-name>servlet.class</param-name>
<param-value>flex.webtier.server.j2ee.SwfServlet</param-value>
</init-param>

<load-on-startup>2</load-on-startup>
</servlet>
<servlet>
<servlet-name>FlexForbiddenServlet</servlet-name>
<display-name>Prevents access to *.as/*.swc
files</display-name>
<servlet-class>flex.bootstrap.BootstrapServlet</servlet-class>
<init-param>
<param-name>servlet.class</param-name>
<param-value>flex.webtier.server.j2ee.ForbiddenServlet</param-value>
</init-param>
</servlet>
<servlet>
<servlet-name>FlexInternalServlet</servlet-name>
<servlet-class>flex.bootstrap.BootstrapServlet</servlet-class>
<init-param>
<param-name>servlet.class</param-name>
<param-value>flex.webtier.server.j2ee.filemanager.FileManagerServlet</param-value>
</init-param>
<load-on-startup>10</load-on-startup>
</servlet>
<servlet-mapping>
<servlet-name>FlexMxmlServlet</servlet-name>
<url-pattern>*.mxml</url-pattern>
</servlet-mapping>
<servlet-mapping>
<servlet-name>FlexSwfServlet</servlet-name>
<url-pattern>*.swf</url-pattern>
</servlet-mapping>
<servlet-mapping>
<servlet-name>FlexForbiddenServlet</servlet-name>
<url-pattern>*.as</url-pattern>
</servlet-mapping>
<servlet-mapping>
<servlet-name>FlexForbiddenServlet</servlet-name>
<url-pattern>*.swc</url-pattern>
</servlet-mapping>
<servlet-mapping>
<servlet-name>FlexInternalServlet</servlet-name>
<url-pattern>/flex-internal/*</url-pattern>
</servlet-mapping>
<welcome-file-list>
<welcome-file>index.html</welcome-file>
<welcome-file>index.htm</welcome-file>
</welcome-file-list>
<taglib>
<taglib-uri>FlexTagLib</taglib-uri>
<taglib-location>/WEB-INF/lib/flex-bootstrap-jsp.jar</taglib-location>
</taglib>
</web-app>

Flex and EJB with JBOSS

Hi!
I have a web application running on JBOSS 4.0.4 and using EJB/EJB3.
The main goal is simple, i need to substitute some JSP pages with flex.
I'm a total newbie with flex and i don't even know how to get started.
What do i need? Only BlazeDS or something more? Is there some tutorial with a step by step explanation?
I appreciate your help.

You cant really replace Struts with Flex, maybe a view part
, thats about is, you still need backend processioning
logic,all that you are asking is difficult to answer is one reply,
IMHO, best thing you can do is to dive into following URLs :
http://www.adobe.com/devnet/flex/
http://livedocs.adobe.com/flex/3/html/help.html?content=Part2_DevApps_1.html
http://livedocs.adobe.com/blazeds/1/blazeds_devguide/
http://livedocs.adobe.com/flex/3/html/help.html?content=Part6_ProgAS_1.html
and of course your best friend :
http://livedocs.adobe.com/flex/3/langref/index.html

Problem with the flex and the webservice

Hey everyone,
I have a problem with flex; I declared a web service ( that I
test it and it works ) inside flex and declared also the operation.
But it seems that flex doesn't recognize the web method so
when i use something like
ws.Getheader.send()
it pop up an error : Property Send not found on ....
and in the intellisens menu after I write ws. I don't find my
method
here is a fragment of the code :
<?xml version="1.0" encoding="utf-8"?>
<mx:Application xmlns:mx="
http://www.adobe.com/2006/mxml"
layout="absolute"
xmlns:local="*"
creationPolicy="all"
backgroundColor="white"
backgroundGradientColors="white"
themeColor="#8190b7"
width="970"
creationComplete="initVars()">
<mx:WebService id="ws" wsdl="
http://localhost/csp/SearchWS.asmx?WSDL"
useProxy="false">
<mx:operation name="SearchHeaderText" />
</mx:WebService>
<mx:Script>
<![CDATA[
import mx.events.ListEvent;
import flash.net.*;
import mx.rpc.soap.*;
import mx.controls.Alert;
import mx.rpc.events.ResultEvent;
import mx.rpc.events.FaultEvent;
import mx.utils.ObjectUtil;
import mx.rpc.http.HTTPService;
private function initVars():void
ws.SearchHeaderText.Send()
]]>
</mx:Script>

Have you tried the data wizard in Flex Builder 3 ?
Data > Import Web Service (WSDL).
It will create all the classes automatically for you from the
WSDL. More about this here:
http://www.adobe.com/devnet/flex/articles/flex_ws.html?devcon=f4

What is the state if flex, and air development for air

Hi,
1- I wanted to know what is the state of affairs in flex and air as cross platform mobile development solutions?
2- Are they still worth learning and spending time developing mobile application using these technologies?
Becuase all the documnetation forum posts and most of the help material I come across is almost a year old.
Any guidance in this regard would be greatly appreciated.
Thank you.

The right place to look for updates on Flex is http://flex.apache.org
The good thing is that activities are still going on. The bad things are that:
- Unless the dependency to Adobe air is cut, Flex as an open source project is bound to fail imho. See FlexJS for updates on that point
- Current activties seem to be focused around making things more polished rather than working on hard stuff (typically developing an independent and open source runtime execution engine => flexJS)
So...
For a small company, home development, not so business critical applications, I recommend warmly Flex, since it is one of the best (if not the best) cross-platform mobile development environment (Very good performances if used appropriately, very good programming environment, lots of components, structured language, lots of documentation and tutorials, easy to design, etc.)
for business critical applications... The risk is high !

Flex and Mysql

Hi everyone,
I am trying to see how i could have 15 numbers in a
database, and this number will display 15 textbox with size=1.
how can i do it with flex or Is there anyway I can do it
using Flex and PHP or Ajax or Javascript? Please help me. Thank
you.
Cliffy

Hi,
I'm developing an application that use MySQL everywhere. I'm
using a technology that connect Flex to Mysql using PHP. The name
is AMFPHP.
you can have all the information here:
www,amfphp.org
Intallation is very easy and there are video tutorials there.
I'm using the version 1.9 beta and the performance is excellent.
There are different aproches for that (Ajax, colfusion, and
anothers gateways) but I recomend you AMFPHP. It's well documented
and has been outside for a while.

Flex and large real world b2b applications

Hi all.
I am new to Flex. I am acting in an architect capacity to
review the potential in Flex to become the client presentation
layer for a classic ASP?SQL application. I am seeking a
cross-browser, cross-platform, zero-installation,
just-in-time-delivery, rich user experience web application client.
I think I'm in the right place.
My aim in creating this post is to solicit feedback on
approaches and techniques on how to plan and execute a major-system
re-write into Flex, what is in-scope and what is not, etc. With the
Flex team putting the final touches into release 1.0, this might be
considered a bit too soon to ask these questions, but worthy of
response if Flex is to be take as anything more than
‘something to do with that flash games thing that my kids
play on’.
One of the key issues for my client company, which I believe
will be typical for many in the same situation, is to retain
current investment in the system by re-use of the business logic
and DB access layers. Basically the back-end is not broken and is
well prepared for generation of XML instead of HTML. What is
considered weak, by nature of the web browsers poor user interface
abilities, is the client side of the system.
The company has a small, loyal and technically able workforce
who are very familiar with the current system, which is written
using classic ASP and SQL Server , HTML and JavaScript. The company
is risk and runaway cost averse. It has held back from jumping into
.Net for fear of getting into a costly 5 year revision cycle as
.Net matures. The AJAX approach is another potentially fruitful
client-only route but is likely to be a painful way forward as
there is no major technology vendor leading the charge on
standards. A Java approach would meet the user interface
improvement needs but would require replacing or retraining the
current workforce and a paradigm shift in the technology losing all
of the middle-tier database logic.
The ideal is a stable zero-installation web-client that can
communicate with a server back-end consisting of the same, or
slightly modified or wrapped business logic and db configuration as
the current system and that could then run side-by-side during
switchover.
If this is possible then risk adverse organisations have a
way forward.
The problem is, that from several docs and articles on
Adobe's web site, there seems to be some careful but vague
positioning of the capability of Flex in terms of application
complexity and depth. Also, the demo's that are available seem to
be quite lightweight compared to real-world needs. These apps
‘seem’ to work in a mode where the entire application
is downloaded in one-hit at user initiation. The assumption is that
the user will be prepared to pay some wait time for a better UX,
but there must be a limit.
Question:: How does one go about crafting in Flex what would
have been a 300-page website when produced in HTML? Is this
practical? To create a download containing the drawing instructions
and page-logic for 300 pages would probably cause such a delay at
user-initiation that it would not be practical.
There are many further questions that span from here, but
lets see what we get back from the post so far.
Looking forward to reading responses.
J.

You're absolutely in the right place (IMO)...
Cynergy Systems can help you get started. We are a Flex
Alliance partner,
and have developed some extremely complex RIAs with Flex.
Contact our VP of Consulting - Dave Wolf for more info:
[email protected]
Paul Horan
Cynergy Systems, Inc.
Macromedia Flex Alliance Partner
http://www.cynergysystems.com
Office: 866-CYNERGY
"TKJames" <[email protected]> wrote in
message
news:[email protected]...
> Hi all.
>
> I am new to Flex. I am acting in an architect capacity
to review the
> potential
> in Flex to become the client presentation layer for a
classic ASP?SQL
> application. I am seeking a cross-browser,
cross-platform,
> zero-installation,
> just-in-time-delivery, rich user experience web
application client. I
> think I'm
> in the right place.
>
> My aim in creating this post is to solicit feedback on
approaches and
> techniques on how to plan and execute a major-system
re-write into Flex,
> what
> is in-scope and what is not, etc. With the Flex team
putting the final
> touches
> into release 1.0, this might be considered a bit too
soon to ask these
> questions, but worthy of response if Flex is to be take
as anything more
> than
> ?something to do with that flash games thing that my
kids play on?.
>
> One of the key issues for my client company, which I
believe will be
> typical
> for many in the same situation, is to retain current
investment in the
> system
> by re-use of the business logic and DB access layers.
Basically the
> back-end is
> not broken and is well prepared for generation of XML
instead of HTML.
> What is
> considered weak, by nature of the web browsers poor user
interface
> abilities,
> is the client side of the system.
>
> The company has a small, loyal and technically able
workforce who are very
> familiar with the current system, which is written using
classic ASP and
> SQL
> Server , HTML and JavaScript. The company is risk and
runaway cost
> averse. It
> has held back from jumping into .Net for fear of getting
into a costly 5
> year
> revision cycle as .Net matures. The AJAX approach is
another potentially
> fruitful client-only route but is likely to be a painful
way forward as
> there
> is no major technology vendor leading the charge on
standards. A Java
> approach
> would meet the user interface improvement needs but
would require
> replacing or
> retraining the current workforce and a paradigm shift in
the technology
> losing
> all of the middle-tier database logic.
>
> The ideal is a stable zero-installation web-client that
can communicate
> with a
> server back-end consisting of the same, or slightly
modified or wrapped
> business logic and db configuration as the current
system and that could
> then
> run side-by-side during switchover.
>
> If this is possible then risk adverse organisations have
a way forward.
>
> The problem is, that from several docs and articles on
Adobe's web site,
> there
> seems to be some careful but vague positioning of the
capability of Flex
> in
> terms of application complexity and depth. Also, the
demo's that are
> available
> seem to be quite lightweight compared to real-world
needs. These apps
> ?seem? to
> work in a mode where the entire application is
downloaded in one-hit at
> user
> initiation. The assumption is that the user will be
prepared to pay some
> wait
> time for a better UX, but there must be a limit.
>
>
Question:: How does one go about crafting in Flex what would
have
> been
> a 300-page website when produced in HTML? Is this
practical? To create a
> download containing the drawing instructions and
page-logic for 300 pages
> would
> probably cause such a delay at user-initiation that it
would not be
> practical.
>
> There are many further questions that span from here,
but lets see what we
> get
> back from the post so far.
>
> Looking forward to reading responses.
>
> J.
>
>

Purchase Order Dashboard using Adobe Flex and AIR

Hi ,
I have written a AIR apps for displaying the Purchase Order using OPen source Flex and AIR making Web Service calls to our SAP R3 6.20 Backend System . If anybody would be interested in taking a look at it and expanding the apps please free to post at those forum with the your email ID . I can send the AIR apps along with the source code .
Thnks
V

I have uploaded the zip file containing my code . If anybody is interested can download from this link .
http://www.mediafire.com/?8mfesdczsuv
Vinod

Problem in creating client side PDF with image using flex and AlivePD

I need a favor I am creating client side PDF with image using flex and AlivePDF for a web based application. Images have been generated on that pdf but it is creating problem for large size images as half of the image disappeared from that pdf.I am taking the image inside a canvas . How do i control my images so that they come fit on that pdf file for any image size that i take.
Thanks in advance
Atishay

I am having a similar and more serious problem. It takes a
long time to execute, but even attaching a small image balloons the
pdf to 6MB plus. After a few images it gets up to 20MB. These are
100k jpeg files being attached. The resulting PDF is too large to
email or process effectively. Does anyone know how to reduce
size/processing?

How do I save a file to a server using flex and coldfusion?

How do I save a file to a server using flex and coldfusion?
On the CF side I might need to use this:
<cffile action="UPLOAD" filefield="Filedata"
destination="#expandpath('..\somepath)#"
nameconflict="overwrite">
And on the flex side I might need to use something like this:
var sendVars:URLVariables = new URLVariables();
sendVars.action = "upload";
var request:URLRequest = new URLRequest();
request.data = sendVars;
request.url = _strUploadScript;
request.method = URLRequestMethod.POST;
_refUploadFile = new FileReference();
_refUploadFile = _arrUploadFiles[_numCurrentUpload].data;
_refUploadFile.addEventListener(ProgressEvent.PROGRESS,
onUploadProgress);
_refUploadFile.addEventListener(Event.COMPLETE,
onUploadComplete);
_refUploadFile.addEventListener(IOErrorEvent.IO_ERROR,
onUploadIoError);
_refUploadFile.addEventListener(SecurityErrorEvent.SECURITY_ERROR,
onUploadSecurityError);
_refUploadFile.upload(request, "file", false);
I just don't know how to put it all together in Coldfusion.

try this...
http://cf-creations.co.uk/blog/index.cfm/2008/9/20/Flex--File-Upload-Form--Part-One--Build ing-The-Initial-Form

Flex and Java on Desktop

Hi
We are having this requirement , we want to develop a
application using flex for adobe AIR runtime which will communicate
with java in the desktop, we are not having any servers here, so
flex application want to communicate with java classes with out the
help of any server so I can't use httpservice, webservice or
remoting .
I like to know the ways to communicate from flex 3.0(Adobe
AIR) to java files (java takes care of splitting PowerPoint
files and converting it into serious of jpeg files, and
creating ppt files from the objects returned from flex ).
Is there any other way to communicate form between flex and
java in the desktop ??? please give inputs
Thiru

Hi,
you could use XMLSocket or Socket classes depending on the
type of communication you want to stablish.
I have been testing this for a while although not for a
project.
However my impression is that you need to install the AIR app
which is self-extracted and installed, but in second hand, you have
to install the Java app, that acts as a server, and it must be
executed every time your AIR app is, and the other way around.
Untill now I haven't got any idea on doing this without too
much work, but you can take a look at the Merapi project.
Manu

Sharing code between Flex and AIR versions using library project

Hello everyone,
I'm developing an application that has both Flex and AIR versions. In order to share code between these apps, I created a library project and added all my code there. Now I've set the library project as a dependency for both Flex and AIR projects. Since there are some components that use the DataService object, I've added fds.swc and fds_rb.swc and fiber_rb.swc modules to the libs directory of the library project. No compile errors. Now, if I try to run my Flex application, I'm getting this error:
Variable mx.data::LocalStoreFactory is not defined.
I know that this error comes up when playerfds.swc is not present in the path. But that is not the case here. I have added playerfds.swc, fds.swc and related lib files to the build path.
If I go back and add the playerfds.swc file to the original library project, the error no longer appears. This is not a proper solution for me, since I need to share this project with AIR version also, and I cannot have both playerfds.swc and airfds.swc in the same project.. Has anyone faced an issue like this before?? What am I doing wrong??

Hello everyone,
I'm developing an application that has both Flex and AIR versions. In order to share code between these apps, I created a library project and added all my code there. Now I've set the library project as a dependency for both Flex and AIR projects. Since there are some components that use the DataService object, I've added fds.swc and fds_rb.swc and fiber_rb.swc modules to the libs directory of the library project. No compile errors. Now, if I try to run my Flex application, I'm getting this error:
Variable mx.data::LocalStoreFactory is not defined.
I know that this error comes up when playerfds.swc is not present in the path. But that is not the case here. I have added playerfds.swc, fds.swc and related lib files to the build path.
If I go back and add the playerfds.swc file to the original library project, the error no longer appears. This is not a proper solution for me, since I need to share this project with AIR version also, and I cannot have both playerfds.swc and airfds.swc in the same project.. Has anyone faced an issue like this before?? What am I doing wrong??

I have built a android application using adobe flex, and i have exported it with native air. The application is working fine on samsung phones whereas it is getting crashed on Moto Phones, which runs on android kitkat, is there any compatibility issue ?,

I have built a android application using adobe flex, and i have exported it with native air. The application is working fine on samsung phones whereas it is getting crashed on Moto Phones, which runs on android kitkat, is there any compatibility issue ?, I have built a android application using adobe flex, and i have exported it with native air. The application is working fine on samsung phones whereas it is getting crashed on Moto Phones, which runs on android kitkat, is there any compatibility issue ?, I have built a android application using adobe flex, and i have exported it with native air. The application is working fine on samsung phones whereas it is getting crashed on Moto Phones, which runs on android kitkat, is there any compatibility issue ?

Thanks, Flex harUI, for the direction in regards to isolating build changes. That aside (still working on it), can you offer any direction in regards to my original question on SDK and AIR compatibility? I'm specifically looking for a version compatibility mapping or anything that definitively states, "Flex SDK x.y.z works with the following versions of AIR". This information is crucial for us in order to more specifically plan our own roadmap built upon these two frameworks as we consider both existing installations of our software and future distributions.

Flex and JSP tutorials and articles?

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