HTTP Session in Flex 2

Hi,
I want to know how to work with the HTTP Session object in
Flex 2?
Piece of code is really appreciable.
Thanks,
-Sameer

Check out the example from the docs:
http://livedocs.macromedia.com/flex/2/langref/mx/rpc/http/mxml/HTTPService.html#includeExa mplesSummary
That should get you started...

Similar Messages

[svn:bz-trunk] 21394: bug fix for watson 2887837 Not getting duplicate session detected error when same flex client id is used from two different HTTP sessions in CRX .

Revision: 21394
Revision: 21394
Author:   [email protected]
Date:     2011-06-16 12:34:13 -0700 (Thu, 16 Jun 2011)
Log Message:
bug fix for watson 2887837 Not getting duplicate session detected error when same flex client id is used from two different HTTP sessions in CRX.
get the sessions id before we invalidate the duplicate session.
Checkintests pass
Modified Paths:
    blazeds/trunk/modules/core/src/flex/messaging/endpoints/BaseHTTPEndpoint.java

For our profect I think this issue was caused as follows:
Believing that remoting was full asynchronous we fired a 2 or 3 remote calls to the server at the same time ( within the same function ) - usually when the users goes to a new section of the app.
This seemed to trigger the duplicate http session error since according to http://blogs.adobe.com/lin/2011/05/duplication-session-error.html two remote calls arriving before a session is created will cause 2 sessions to be created.
Our current solution ( too early to say it works ) is to daisy chain the multiple calls together .
Also there seemed to be an issue where mobile apps that never quit ( thanks Apple! ) caused the error when activated after a few hours.
I guess the session expires on the server and the error above occurs on activation.
So the mobile apps now ping the server with a remote call when activated after sleeping for more than one hour.
All duplicate http errors are silently caught and reported.
Fingers crossed we won't get any more!

Session in Flex

You can Use the following class as a session in flex..
[Bindable]
private var session:Session = Session.getInstance();
How to insert data to session
session.setAttribute('username','sanka')
How to retrive data from session
var userName:String=session.getAttribute('username');
http://dl.dropbox.com/u/7375335/Session.as
package model
 import flash.utils.Dictionary;
 [Bindable]
 * @author Sanka Senavirathna
 *
 * Conforms to Singleton Design Pattern.
 * 
 * 
 * Session.getInstance().getAttribute(key)
 * Session.getInstance().setAttribute(key,value)
 * Code example for client
 [Bindable]
 private var session:Session = Session.getInstance();
 session.getAttribute('name')
 * 
 public class Session
 private static var instance:Session = new Session();
 private var dic:Dictionary=new Dictionary(); // keep user session
 public function Session()
 if (instance != null) { throw new Error('Cannot create a new instance. Must use Session.getInstance().') }
 * This Session is a Dictionary that keep key value pairs.Key can be object and value can be object.
 * [Bindable]
 * private var session:Session = Session.getInstance();
 * @langversion ActionScript 3.0
 * @playerversion Flash 8
 * @see getAttribute
 * @see setAttribute
 * @author Sanka Senavirathna
 public static function getInstance():Session
 return instance;
 * [Bindable]
 * private var session:Session = Session.getInstance();
 * Session.getInstance().setAttribute(key,value)
 * example
 * session.setAttribute('username','sanka')
 *
 * @langversion ActionScript 3.0
 * @playerversion Flash 8
 * @param key Describe key here.
 * @param value Describe value here.
 * @see getAttribute
 * @author Sanka Senavirathna
 public function setAttribute(key:*,value:*):void
 dic[key]=value;
 * [Bindable]
 * private var session:Session = Session.getInstance();
 * Session.getInstance().getAttribute(key)
 * example
 * var userName:String=Session.getInstance().getAttribute('username');
 *
 * @langversion ActionScript 3.0
 * @playerversion Flash 8
 * @param param1 Describe key here.
 * @see setAttribute
 * @author Sanka Senavirathna
 public function getAttribute(key:*):*
 return dic[key];

I think This will help you to keep your shaired data in single place.this will optimize your program by
reducing database hits,
reducing Server hits
Onece you retrive the data then put it into session (flex) and retrive it when you need..For example username in system.when user logged successfully
put the user object in to session and hide the login component.then pop-up your other component.But you can access the user data from session by using
var user:User=Session.getInstance().getAttribute('user'); something like that.
Hope this will help you.
enjoy
happy cording

Regarding maintaining session in flex

Hello,
I am developing a flex application which is using jsp for database connectivity. I am using HTTP request for connecting to jsp page and passing and retrieving parameters. Now I wanted to ask how can I maintain session in flex so that I can know which client has logged into the system and on the basis of that can assign privileges to the client. Is it possible in flex and how?Reply needed urgently.
Thanks in advance.

Hi a.bhavika,
There is not specifically any session management in Flex as it runs everything on the client side if at all you want to mainatain you can maintain it on the server side. ...and I think for your case I dont think you need any session managemenet as at the time of login only you can identify which user has logged in to the syetem and based on the user logged in you can load all the previleges of that particular user in the Flex application.
Check out the links below for your understanding...
http://www.forta.com/blog/index.cfm/2006/9/24/flex-and-session-state-management
http://www.assembla.com/wiki/show/romoz/Session_Management_in_Flex
Thanks,
Bhasker

How to close a HTTP session when a user closes the window

Hi,
I am having problems when closing the browser of a BW web report. After I closed the browser by going File->close, I ran SM04 and found out the Plugin HTTP session hangs at the server side.
How can we terminate the Plugin HTTP session at the server side when user closes the internet browser?
I did implement a logoff function at my web template and this was implimented on the Menu page, if user clicks on the logoff, the Plugin HTTP session is terminated at server side correctly.
If user navigates to the other pages from the main page... then the logoff function was not implimented in the other pages. So many of the users are closing the windows directly. Eevn if we impliment logoff in all the subpages, As you know, 50% of time user will close the report by closing the internet browser instead of clicking the logoff. That leaves lots of hanging Plugin HTTP sessions at our server side.
Regards,
Tony

Hi,
And also take a look on the Genral property of the web template. We solved this problem by changing only this property (no extra things).
Property: Value
Automatic Session Management: Active
With rgds,
Anil Kumar Sharma .P
Message was edited by: Anil Kumar Sharma

Bw web report plugin http session hangs at the server side

Hi,
I am having problems when closing the browser of a BW web report. After I closed the browser by going File->close, I ran SM04 and found out the Plugin HTTP session hangs at the server side.
How can we terminate the Plugin HTTP session at the server side when user closes the internet browser?
I did implement a logoff function at my web template, if user clicks on the logoff, the Plugin HTTP session is terminated at server side correctly. But As you know, 50% of time user will close the report by closing the internet browser instead of clicking the logoff. That leaves lots of hanging Plugin HTTP sessions at our server side.
By the way, we actived our BEX service at the SICF.
Thanks for help!
JA

Hi
If you want to avoid a blank page with logoff button, add opener=0
<a href="<SAP_BW_URL CMD='LOG_OFF' ~command='logoff'
>" onClick="javascript:window.close(opener=0);">Log off</a>
If you want to close the session via X, use this code:
create a sapscript function
function closeSession()
logoff()
window.unload=CloseSession()
However, the Plugin HTTP session isn't killed.
Regards

In-memory replication of http session is not working in BEA7 cluster

 Hi everyone,
 I have 3 managed servers in Bea7.0 SP4 in a cluster. The client requests are sent
 through apache web server. I have given cluster address as URL in httpd.conf of
 apache server which sends the client requests for dynamic pages such as JSPs and
 servlets to the weblogic cluster.
 Load balancing is working fine. I ensured this from the log files of all the 3
 servers. All the 3 servers are getting different client requests and thus load
 balancing is working.
 Now, I wanted to achieve Fail-over. I do not think that i should use proxy plug-in
 for this. I feel the cluster itself will handle fail-over provided i make the
 http session as memory replicated.
 I updated the weblogic.xml with the following entry :
 <session-descriptor>
 <param-name>PersistentStoreType</param-name>
 <param-value>replicated</param-value>
 </session-param>
 </session-descriptor>
 I guess this is sufficient to make the http session as cluster aware.
 But when I shutdown server1, the user connected to server1 will be kicked out
 of the session and come to login page through server2 or server3 which are running
 fine.
 Could anyone help me to achieve http session as cluster aware. Does it indicate
 that I have to go for WLS proxy – HttpClusterServlet to achieve fail over for
 http session ?
 BTW, for your info, i am using setAttribute() and getAttribute() while manipulating
 the session.
 thanks in advance.


 Hi Ryan,
 Thanks for ur valuable input.
 I can see failover working.
 But, I can not continue with the same session in my application.
 I printed session Ids before and after failover, I found both are different.
 I guess session replication is a responsibility of weblogic/apache plugin.
 If not please let me know which all settings I should do to make failover working?
 Thanks again.
 Plad
 "ryan upton" <ryanjupton at learningvoyage dot com> wrote:
 >Plad,
 >
 >Are you trying to gracefully shut down the server? If you are then the
 >problem that you say you can't identify is simply the server's default
 >behavior which is to wait for all non-replicated sessions to be dropped
 >or
 >timed out before killing the process. Try forcing the shutdown: kill
 >-9 the
 >PID or CTRL-C if you started the server from the command line. You can
 >also
 >check the ``Ignore Sessions During Shutdown" checkbox under the server's
 >control tab in the admin console, this should allow you to shut down
 >gracefully without waiting for session timeout. BTW your sequence is
 >off
 >in #5 below, the replication doesn't occur upon failure, the replication
 >has
 >already happened once you created the session object on the first server,
 >I
 >think maybe you're confusing replication with failover.
 >
 >~RU
 >
 >"Plad" <[email protected]> wrote in message
 >news:[email protected]...
 >>
 >> Hi,
 >> I have 2 managed servers in a cluster.
 >>
 >> 1. I have got a DNS name configured which maps to these 2 managed server's
 >IP
 >> addresses.
 >> 2. I can browse my site using this DNS name.
 >> In HTTPD.conf I have :
 >>
 >> ServerName dev.a.b.net
 >>
 >> <IfModule mod_weblogic.c>
 >> WebLogicCluster 10.1.38.232:7023,10.1.34.51:7023
 >> MatchExpression *.*
 >> </IfModule>
 >>
 >> LoadModule weblogic_module modules/mod_wl_20.so
 >>
 >> 3. I have adeded session descriptor in weblogic.xml , also enabled
 >proxy
 >plugin
 >> in weblogic console.
 >>
 >> 4. I tested accessing my application using DNS url after shutting down
 >alternatively
 >> each manaed server. I can access application.
 >>
 >> 5. Now, problem comes when I access a managed server1 , keeping server2
 >down.
 >> I am able to access my application.
 >> Now, I start the server2.
 >> (Here I am supposing that replication should occur)
 >> Then I am shutting down server1.
 >> But, this time the server log shows me following:
 >>
 >>
 >> 9:58:51 AM GMT+05:30 NOTICE Web application(s) chlist still have
 >non-replicated
 >> sessions after 2 minutes of initiating SUSPEND. Waiting for non-replicated
 >sessions
 >> to finish.
 >> 10:00:51 AM GMT+05:30 NOTICE Web application(s) chlist still have
 >non-replicated
 >> sessions after 4 minutes of initiating SUSPEND. Waiting for non-replicated
 >sessions
 >> to finish.
 >>
 >> I am unable to make out where the problem is?
 >> Can it be a problem of Liecense? Is there any specialcluster liecense
 >for
 >weblogic8?
 >>
 >> Hoping to get replies.
 >> Thanx.
 >> Plad
 >>
 >> "ryan upton" <ryanjupton at learningvoyage dot com> wrote:
 >> >See my reply to your first post, but I've also added a few comments
 >here.
 >> >
 >> >"jyothi" <[email protected]> wrote in message
 >> >news:[email protected]...
 >> >>
 >> >> I guess someone from bea support team only can answer both your
 >question
 >> >and mine.
 >> >> As per my knowledge, we do not need to do any setup at Apache
 >side
 >> >regarding
 >> >> cluster other than mentioning cluster address as URL while
 >contacting
 >> >WLS
 >> >> from apache.
 >> >>
 >> >> I hope someone from Bea, will help us. I do not think that we
 >> >go for
 >> >WLS
 >> >> proxy plug-in using HttpClusterServlet for making session replication.
 >> > I
 >> >strongly
 >> >> feel that the cluster itself be able to manage the fail-over of
 >> >http
 >> >sessions
 >> >> provided we put the entry "PersistentStoreType" in weblogic.xml
 >> >regarding
 >> >> the session replication.
 >> >>
 >> >
 >> >The cluster does handle the management of Sessions. The clustered
 >> >applications still create the Session objects and the cluster manages
 >> >them
 >> >as per your deployment descriptor settings (replicated, JDBC, File)
 >however
 >> >the proxy has to be aware of which server the client has an affinity
 >> >for
 >> >(only with replicated sessions) and it does that by reading a cookie
 >> >passed
 >> >back from the server that handled the initial request and created
 >the
 >> >primary session object. The proxy has a list of both the primary
 >and
 >> >secondary server locations from this cookie that it can use to failover
 >> >the
 >> >request if the primary server fails. Clusters _DO NOT_ failover nor
 >> >do they
 >> >load balance, that's the job of your proxy, whether you're using the
 >> >HTTPClusterServlet, WLS Plug-in or a more sophisticated hardware load
 >> >balancer like Big IPs F5
 >> >
 >> >> jyothi
 >> >>
 >> >
 >> >~RU
 >> >
 >> >
 >>
 >
 >

How to find the list of users loggin through HTTP session

Hi All,
we are using SRM 5.5 system with ITS. I am able to find the list of concurrent users from ABAP level using report "CCUEVAL" but how do I know the list of concurrent users logged in from HTTP session?.
could you please let us know the SAP note number or any report?
Thanks in advance,
Mohan Karri

Hi Uday,
thank you very much for your prompt response.
I need a report because by end of every month I would need the average peak http users list for the reporting month.
or tell me how to find " how many users logged in through HTTP session in a day?"
Thanks
Mohan

How to get HTTP session in Applcation Module IMPL file

Hi Guys,
Can any one tell me how to get HTTP session in Applcation Module IMPL file ?
thnks

You can, but that's not a best practice.
Re: How to reach HttpContext from model Project

Define HTTP Session Attribute in a Custom Authenticator

Hello everyone I developed sucessefully a Custom Authenticator for WLS10 that interacts with a web service.
But now I need to provide an object to the web applications with the some user information.
I was wondering defining the object in the HTTP Session but I dont know how to do it via de LoginModule of the custom authenticator.
Can anyone provide me some tips?
thanks in advance.

What kind of user information do you need to pass on to the webapplication ? username can be retrieved by request.getRemoteUser() (after successful login).
May be you need to clarify little bit more on what you want to achieve.
-Utpal

Regarding session in flex

hi,
My question is ,how i have set session in php and in flex. i could not know how to set session in flex and php.How to handle session in flex.
Please provide me solution to solve the problem.
Thanks and Regards,
venkat.R

Hi Venkat,
You have to save PHPSESSID. for each request you made to server send this as URLVariable.
I think this should work.
let me know If it is helpfull.....
Thanks,
Vikram

Dynamic reloading in iWS 6.0 causes my http session to be lost

Hi,
I have a problem with dynamic reloading in iWS 6.0 Sp2 on Solaris 8. I have not set the reload-interval for the class-loader, in fact i haven't included anything related to the classloader in the web-apps.xml file.
The default behaviour is observed, the classes are reloaded every 30 seconds. So far, so good.
I have seen that if a change a class, iWS reloads the entire application, destroying all the servlets in it. This destroys my HTTP session.
The same behaviour is observed in a redeployment, and in a reloading of config files.
Is there any way of avoiding this?
Thanks.
By the way, could anyone describe the classloader architecture of iWS.
Juan

Scott,
Does the problem only occur on MSIE clients? Do this work properly on Communicator? If so, you may be running into a problem with how MSIE determines the maxage for a cookie.
The criteria that IE uses for creating a new session is the length of time that a session has been alive. For this reason, when a user tries to connect to a web application on the iWS webserver through IE, the time on the client server and on the webserver must be set correctly. Otherwise, the user could experience problems with session data getting lost or discarded by the client.
This problem does not occur on Netscape browsers, as Netscape browsers set the cookie using the client-side clock and the maxage sent by the server.
Refer to this technote and see if the helps:
http://knowledgebase.iplanet.com/ikb/kb/articles/4704.html

Sessions in Flex

Can anyone tell me how sessions work in Flex? From a browser perspective, I understand when a new session is created the ID is saved into a session cookie client-side and this ID is used to link the browser to the server-side session. But I can't find any cookies that relate to my Flex application (assuming it uses cookies).

Session informatione is, basically, every variable you create and store in the Flex application.
Sessions cookies are a work around for the stateless nature of HTML Pages. Every HTML page exists in isolation andk nows nothing about any other HTML page or the history of the user viewing that page. The server sets a cookie to match the request up a request with a server side session.
In Flex, there is only one page request, so no need for cookies to keep track of sessions. The complete app exists 'once' for each user; as opposed to the server side code which is shared across all users.
That said, if you need sessions for your server side code; remote requests from Flex will include the cookie information set by the server; which will allow said requests to match your remote call to a server side session.
Flex does not have access to read browser cookies, although it may be possible to do so using ExternalInterface and JavaScript.

Https session lifetime

How can lifetime of a secure session be controlled in OC4J 9.0.3-9.0.4?
Is "session-timeout" parameter in web.xml valid or is the SSL session controlled by other parameters?
We are migrating to https an application that worked properly in http mode, and sessions expire now after just a few seconds. We can't find where to config https session timeout. OC4J documentation is very vague regarding to secure applications.
Thanks,
Modulab Team

Having the same problem for more than 1 week, couldn't find a solution. Session expires in a very short time in https. We're using standalone OC4J (9.0.3). Do I have to change it with AS now ? Isn't there any other solution, patch or something like that ?
Any kind of your help would be greatly appreciated since thousands of WEB users of our institution CAN NOT use all of our https WEB apps.
Regards,

Model session not in sync with Http Session

Hi All,
I have an application developed in JDev 11.1.1.4 and we are not using ADF Security for login.
The problem occurring is randomly some of the LOV on my home page are getting null (having no data). These LOVs are populated using the values passed as bind parameter from the login values (basically HTTP session values at web layer). So i added a method in all the task flow to set the session value at the model layer (default method) . Also on each call to the Am Impl call i am setting the value in the HTTP session and then invoking the method, but some how what happens is the Model level session value is not in sync with HTTP session and the list gets empty.
Any inputs what i can do to get out of this prblm ?
thnk

In this case you need to overwrite the activateState/passivateState method of your am and store/reads the values from the xml structure you get as parameters to this methods.
For more detailed information check the docs http://download.oracle.com/docs/cd/E12839_01/web.1111/b31974/bcstatemgmt.htm#sm0495
By the way, this is nothing you need to open an SR on as it's working as designed.
Timo

HTTP Session in Flex 2

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