Problem with session variable

Hi,
After I insert a record into my MS Access database, it seems
to me that the session variable got destroyed so the next page
display the session variable as undefined. Has anyone have similar
problem? If so, how to work around that?
Thanks.
Tommy,

neptunes wrote:
but its leading to jsp page error...For starters: never, never, ignore errors (exceptions and stacktraces). Those contain very, very, worthful information about the cause of the problem and what exactly went wrong. This way you can easily trackback the problem and solve it.
If you're unable to think logically and smart so that you can interpret the error yourself, if necessary with help of Google, then post it here. Then we'll tell you about the actual problem and possible soltions.
At any way:
iam displaying some data in a table using resultset object,now at the same time iam using to session variable to use the resultset object in my other applications...This already doesn't sound very good. You should never pass expensive resources around like that. You should acquire and close the Connection, (Prepared)Statement and ResultSet in the shortest possible scope. Preferably already in the same method as where you query the data.

Similar Messages

Problem with Session variable initialization block

Hi,
I'm getting strange results when using session variables in my repository files.
I have created session variables as specified in the document which is available at
http://www.oracle.com/technology/obe/obe_bi/bi_ee_1013/bi_admin/biadmin.html
The main problem getting with the system session variable (USER) in the select statement.
My select statement is as follows,
select ':USER',case when upper(':USER') = 'KUMAR' then 'APR-05' end from Dual
The problem is while logging into the BI Answers it is allowing all the invalid users to login who does not exist.
when i remove the quotes and simply use :USER in the select statement it is not allowing the invalid users to login but giving error while displaying the results.
when i remove the user variable from select statement its giving correct results.
Can i know what is causing the problem.
Thanks,
Kumar.

Hi DK,
Check out my post Rowlevel Security?? and see if it helps you.
Cheers!
-Joe

Purchased ColdFusion 10: Having problem with session variables

My Dept. has just bought CF10 and I'm finally updating my existing web app to CF10 from CF8. My First Problem with CF10 is using session variables.
When using the lower version of CF (since CF 4 to 8) I have never had any problem setting up session variables and getting or using these variables in other pages after a successful login but with CF 10 it seems setting session variables and using them in other pages are a major problems. I'm not sure where have I done wrong in the codes.
First I'm setting the session in my Application.cfc This way:
<cfcomponent displayname="Application" output="true">
<cfset THIS.Name ="MyNewApp"/>
<cfset THIS.ApplicationTimeout = CreateTimeSpan(0,0,20,0) />
<cfset THIS.SessionManagement ="YES"/>
<cfset THIS.SessionTimeout = CreateTimeSpan( 0, 0, 20, 0 ) />
<cfset THIS.SetClientCookies = false />
<cffunction name="OnApplicationStart" access="public" returntype="boolean" output="false">
<cfset application.Main_DSN = "TESTDB">
<cfreturn true />
</cffunction>
<cffunction name="onApplicationEnd" output="false">
      <cfargument name="applicationScope" required="true">
    </cffunction>
<cffunction name="OnSessionStart" access="public" returntype="void" output="false" hint="Fires when user session initializes.">
<cfset session.loggedin = "NO">
<cfset session.username = "">
<cfset session.userrights = "">
<cfset session.usergroup = "">
</cffunction>
</cfcomponent>
After login, user is validated and set values to those session.variables:
........user validation codes here......................
<cfif mylogin NEQ true>
      <cflocation url="/login/login.cfm">
      <cfabort
<cfelse>
      <cfset session.loggedin="Yes">
      <cfset session.username="#Trim(Form.username)#">
     <CFSET qUserRights = LoginObj.getUserRights('#Trim(Form.username)#')>
     <cfset session.userrights = qUserRights>
    <CFSET qUserGroup = LoginObj.getUserGroup('#Trim(Form.username)#')>
        <cfloop query="qUserGroup">
           <cfset session.usergroup = user_group>
           <cfbreak>
        </cfloop>
    
   <cfdump var="#session.loggedin#">
   <cfdump var="#session.username#">
   <cfdump var="#session.userright#">
   <cfdump var="#session.usergroup#">
</cfif>
In index.cfm, Before Login I got:
session.loggedin = NO
session.username = ["empty string"]
session.userrights = ["empty string"]
session.usergroup = ["empty string"]
After a successful Login:
session.loggedin = NO
session.username = ["empty string"]
session.userrights = ["empty string"]
session.usergroup = ["empty string"]
Have I done something wrong? These codes work on CF8. Please help.
I need to mentioned:
CF10 is in Linux and my web app is under https not http. But these session variables should be shared bentween http and https because some older application are still in http.

On which page is the following code?
After login, user is validated and set values to those session.variables:
........user validation codes here......................
<cfif mylogin NEQ true>
      <cflocation url="/login/login.cfm">
      <cfabort
<cfelse>
      <cfset session.loggedin="Yes">
      <cfset session.username="#Trim(Form.username)#">
     <CFSET qUserRights = LoginObj.getUserRights('#Trim(Form.username)#')>
     <cfset session.userrights = qUserRights>
    <CFSET qUserGroup = LoginObj.getUserGroup('#Trim(Form.username)#')>
        <cfloop query="qUserGroup">
           <cfset session.usergroup = user_group>
           <cfbreak>
        </cfloop>
    
   <cfdump var="#session.loggedin#">
   <cfdump var="#session.username#">
   <cfdump var="#session.userright#">
   <cfdump var="#session.usergroup#">
</cfif>

Problem with sessions in Kate Editor

Hey guys!
I'm using Kate Editor to code and i'm having problems with sessions. If kate is open and I logout KDE, when I come back to KDE all my customizations in Kate's session (activated plugins, font size, etc) are lost.
If I manually close Kate before logout from KDE, all the customizations are kept when a manually start Kate. I tried a lot of workarounds, but none worked.
Is this a bug? Someone else with this issue?
Thanks in advance!

The Warning errors are simply because you don't have the tablespaces, users, and roles defined in your application system under the DB Admin tab. Unless it is important to you to capture the physical implementation of your tables exactly as well as the table definitions, you can safely ignore these. If the physical implementation IS important to you, then you need to create these tablespaces, roles and users under the database that you created under the DB Admin tab before you start the capture.
The Error is because in the set of objects you are capturing there is a foreign key that references the table named "PLEASANT". This table must be among the objects that you are capturing, or must already be in a Table Definition in your application system in the repository.

Problem with Sessions in JSP

Hi,
I am working on a JSP based website, where I am facing problem with sessions. The user is asked to login by providing her id and password. If found correct, a bean is created and populated with all her details and placed in session scope. I plan to use the information stored in the bean on other related pages until she logs out.
<jsp:useBean id="validUser" scope="session" class="UserBean" >
<c:set target="${validUser}" property="userId" value="${fn:trim(dbValues.UserId)}" />
<c:set target="${validUser}" property="userName" value="${fn:trim(dbValues.UserName)}" />
</jsp:useBean>
<c:redirect url="userHome.jsp" /> The user is presented her homepage - 'userHome.jsp', where she can find various links, like 'Update Profile', 'Pay Registration Fees', 'Book Room' etc. The information stored in the bean is available on 'userHome.jsp'page.
<A HREF='userHome.jsp'>Home</A>
<A HREF='editPersonal.jsp'>Update Profile</A>
<A HREF='registrationFee.jsp'>Pay Registration Fees</A>
<A HREF='bookRoom.jsp'>Book Room</A>
<A HREF='logout.jsp'>Logout</A> The problems are:
1. Whenever user clicks on any of the above mentioned links and moves to any page, the bean comes out as null.
<%-- Verify that the user is logged in --%>
<c:if test="${validUser == null}">
<jsp:forward page="loginForm.jsp">
<jsp:param name="origURL" value="${pageContext.request.requestURL}" />
<jsp:param name="errorMsg" value="You must be logged in to access this site." />
</jsp:forward>
</c:if> 2. The URL shows an additional jsessionid, which my client doesn't want to see.
3. On every click on any link, the value of this jsessionid changes.
What I presume, when I am clicking on different links, my session changes, and so I am seeing a different jsessionid. And since session is changing, therefore the bean is not available in a different session.
All this works fine with localhost, problem comes into picture, when I upload my pages to the server.
Puzzled, can anyone help, where am I going wrong? Let me add here, I am new to JSP and hence don't have much resources with me.

There are several ways sessions can be exchanged between the browser and the server in a j2ee web application.
1. The default is through cookies. However when the client does not accept cookies, the server appends the session id to the url.
2. Some servers also facilitate session information exchange using session id in the url even if the client does accept cookies. This is usually ahieved through a setting in some server configuration file.
You will have to find out why the server in your application is appending the session id to the url.
Whatever be the case, the server should be able to look up the session from the incoming request (be it from the session id in the url or a session cookie).
When session information is exchanged through the JSESSIONID in the url, you should ensure that each and every url that goes to the server has this input parameter. To do that all links and form post urls in your servlet/jsp should be treated with a call to encodeURL().
For example, in a jsp
   <a href = "<%=response.encodeURL("/nextJsp.jsp")%>">Click here </a>
or
   <form action = "<%=response.encodeURL("/nextJsp.jsp")%>">
   </form>etc.
ram.

Problem with formula variable

HI,
I am facing problem with formula variable with replacement path. my requirement is system date - posting date.
here i created 2 formula variable one is system date. second formula vaiable with replacement path is posting date. second formula vaiable not populating data. please help on that.
regards,
kris

Hi,
here is some idea.. here i have taken expample dates 1)notification creation date and 2) notification completion.
1st:in the query designer at key figure coloumn create
one local formula.in that local formula create formula
variable with replacement path.in that take reference character
notification completion.in the next tab take replace ment
as key.in the last tab select "date".
2nd: do the same thing for the notification creation date.
3 rd : create 3 rd local formula and do the substraction
for the first 2 local formulas.
4th:create codition on the difference which u have find with
on that condition u can create one user entry varibale.
5th:while u defining the query put these 2 dates,i,e
notification completion, notification creation date in the character block.
If not system will ignore the formula variable which u created in
above steps.
Hope this wil help u.
regards....KP

Problem with String variable

I am new to Java Programming.
I have a line of code that works and does what is supposed to.
faceData.getProfile("Lisa").removeFriend("Curtis");
If I assign the strings to variables such as-
String name = "Lisa";
String fName = "Curtis";
and then plug those into the same line of code, it does not work
faceData.getProfile(name).removeFriend(fName);
What could be causing the problem?
I even added some lines to print out what is stored in the variables to verify that they are what they should be, but for some reason the variables do not work while putting the strings in quotes does. Any ideas?

I guarantee that something about your assertions are incorrect. Those variables are either not equal to the values you claim, or something else is going on. But it's not a problem with string variables versus string constants.
Edit: My best guess in lack of a real example from you, is that the strings in question have non-printable characters in them, such as trailing spaces or line feeds.

TPC 2012 - Problems with shared variable

Hi,
I tried to program simmilar thing to this one http://zone.ni.com/devzone/cda/tut/p/id/5548 on TPC 2012. But it doesn't work.I can see that both programs on my laptop and TPC are working(I've added an additional counter with display), but I cannot see any effect on TPC when I change the value of shared variable on my laptop. I use LabView 8.6 with Touch Panel Module. My question is what are the exact steps to run such application on TPC2012? Are they the same as for TPC 2006?
I've noticed following issues:
1.I cannot deploy the program from Project Manager(there is an information that maybe TPC Service is not started. - I've found such information about TPC Service http://digital.ni.com/public.nsf/allkb/DE177828D27A14A48625734E00768B66 but in fact I cannot find Start » All Programs»National Instruments » NI TPC Service » NI TPC Service Manager 1.0 Does it mean, that the TPC Service is not installed and the programm with shared varibles won't be working or can I start it somehow in another way? Do I need to have TPC service installed on TPC2012?
Until now, I've built the project and sent it through FTP to TPC(the folder was /TEMP) and then started it.
2.Ping works OK
Thank you in advance for any hints how to solve this problem.
Martin

Well no problem, but I'm frustrated with this issue... I've tested many things and nothing. Just to help someone else as I in the future, these are my sources:
http://forums.ni.com/t5/LabVIEW/TPC-2012-Problems-with-shared-variable/m-p/1009631/highlight/false#M...
http://digital.ni.com/public.nsf/allkb/28536DE7E2D9E98B8625770B00738920?OpenDocument
http://zone.ni.com/reference/en-XX/help/372507B-01/lvtpcgsm/tpc_install_sharvar/
http://zone.ni.com/reference/en-XX/help/372507C-01/lvtpcgsm/tpc_install_sharvar/
http://digital.ni.com/public.nsf/allkb/23532363F4905EC28625727A00730B80?OpenDocument
http://forums.ni.com/t5/FieldPoint-Family/TPC-2006-Not-Listed-in-Targets-and-Devices/td-p/566325
http://forums.ni.com/t5/LabVIEW/MAX-can-t-detect-TPC-2106T/td-p/831524
http://zone.ni.com/devzone/cda/tut/p/id/5868
http://digital.ni.com/public.nsf/websearch/28B748B9697B79E18625725A00009066?OpenDocument
http://digital.ni.com/public.nsf/websearch/D1726990DCEB82E4862570F20069C57D?OpenDocument
http://digital.ni.com/public.nsf/allkb/3B469103BBDD4CE48625726000665B36
I hope find some hint..
Fabian León
Certified LabVIEW Associate Developer

I have a problem with session manager session files because of the invalid json storage data submited by firefox

Hi, i have problem with session manager's session files. The problem is: the submitted storage data from firefox which is put between "storage":{ and its matching closing brace } But in some of my session files there is non equal { and } under storage's braces. I need to get storage data but in my case it is very hard to do. My question is there any char put before or after { and } like /{ or \{ to avoid confusion? If there is not such thing, i think there could be different solution but i am not sure: i look couple of my session files; after "storage":{...} there is ,_"formDataSaved" so i can get storage data in this example ... by looking between "storage":{ and ,"_formDataSaved" easily. Is there every time ,"_formDataSaved" after "storage":{ ? Thank you.

Well, it seems waiting is not my strong suit..! I renamed a javascript file called recovery to sessionstore. This file was in the folder sessionstore-backups I had copied from mozilla 3 days ago, when my tabs were still in place. I replaced the sessionstore in mozilla's default folder with the renamed file and then started mozilla. And the tabs reappeared as they were 3 days ago!
So there goes the tab problem. But again when I started mozilla the window saying "a script has stopped responding" appeared, this time the script being: chrome//browser/contenttabbrowser.xml2542
If someone knows how to fix this and make firefox launch normally, please reply! Thank you

Problems with /tmp variable

Hi,
I'm writing a shell script and I seem to be having problems with a variable that is creates a directory in the /tmp directory. Essentially, there are several points where various parts of the script call out information that gets exported to that directory. My script is failing upon creation of this directory, is there any specific permissions on the /tmp directory in mac that would need to be set before something like this occurred?
Thanks!

My script is failing upon creation of this directory
Maybe you could post your code, that way we can see how you're trying to create the directory and may be able to spot the problem. As it is we're working blind, and that's not easy.

Problem with environment variables

JAVA_HOME = C:\JBuilder9\jdk1.4
Path = C:\oracle\product\10.1.0\Db_1\bin;C:\oracle\product\10.1.0\Db_1\jre\1.4.2\bin;C:\oracle\product\10.1.0\Db_1\jre\1.4.2\bin\client;%SystemRoot%\system32;%SystemRoot%;%SystemRoot%\System32\Wbem;.;C:\oracle1\product\10.1.0\Db_3\jdbc\lib\classes12.zip
When I run foo.java I get this error, which i believe is because of some kind
of problem with environment variables.
Exception in thread "main" java.lang.NoClassDefFoundError: OraThinI eliminated this path
C:\oracle\product\10.1.0\Db_1\jre\1.4.2\bin
just to check whether two paths of jdk bin folder is causing problem but I see no change.
Please help

I had solved it myself
I am a genious :P
Just do this
JAVA_HOME = C:\JBuilder9\jdk1.4
CLASSPATH = C:\oracle\product\10.1.0\Db_1\jdbc\lib\classes12.zip;.;%JAVA_HOME%\bin
PATH= C:\oracle\product\10.1.0\Db_1\bin;C:\oracle\product\10.1.0\Db_1\jre\1.4.2\bin;C:\oracle\product\10.1.0\Db_1\jre\1.4.2\bin\client;%SystemRoot%\system32;%SystemRoot%;%SystemRoot%\System32\Wbem;.;C:\oracle1\product\10.1.0\Db_3\jdbc\lib\classes12.zip;%JAVA_HOME%\bin

Problem with application-variables - CFLOCK?

Hi,
i have a problem with my application. It is a multi-user
application with 100 parallel-users and CFMX 7.
The problem wich occures is with application variables. These
are mainly structs wich get filled onApplicationStart(). The
problem is, that the variables suddenly disappear, they are empty.
I have read about CFLock and found out, that it is necesseary
to use cflock. And i found out, that onApplicationStart does
correct locking automatically. That is where i do not understand
the problem. The variables get intialized correctly and in further
they only get read-access. Why can they be corrupted?
My other question about that is, wheather i need cflock for
all Read-Access to Application and Session-Variables, even if there
happens no writing to the variables?
Best Regards,
Andreas

> ?The element of position 2, of dimension 2, of an array
object used as part of
> an expression, cannot be found.?
> The array is in this case the struct.
Well, OK, that could be a problem. Arrays are not structs:
they are two
different things, are not interchangeable, and have
completely different
sets of functions to utilise them. You cannot treat a struct
as an array.
If CF is claiming your "struct" is an array, then it actually
*is* an
array, not a struct.
What's the line of code which is generating that error?
I suppose one could get this error if you have an array of
structs thus:
myArray
.key1
myArray.key2
(etc)
and you're trying to reference it with a numeric key rather
than by key
name, eg:
myArray
[n]
When n is an integer value, rather than a string (which
corresponds to the
name of the key).
> > Have you trapped the error, done a <cfdump>
of the application scope and
> > checked to see if it's the whole lot going awry, or
just some values?
> I have not used cfdump for it, because the server had to
be immediately
> restarted for our customers. But i think, that it is
not completely empty,
> because the index runs to pos2 of dimenstion2.
So does this not happen in your dev / testing environment?
> Will
> onApplicationStart() be called before? Or only if
onRequestStart() returns true?
I would ***-u-me that the application one would be called
before the
request one. It's pretty easy for you to test this though, I
should think?
(Sorry: for reasons beyond the scope of this conversation,
we're still
forced to use Application.cfm in our software, so I've only a
passing
knowledge of how Application.cfc works).
> Here is the code from onRequestStart()
> <cffunction name="onRequestStart"
returntype="boolean">
> <cfargument name="Requestedpage" required="yes" />
> <cfscript>
> var lFile = "/cargorent/Login.cfm";
> var iPosn = ListFindNoCase( lFile,
Arguments.Requestedpage );
> if( iPosn gt 0 )
> return true;
>
> if( NOT IsDefined( "session.user.Loginname" ) or
session.user.Loginname eq
> "" )
> {
> WriteOutput( "<p><p> The current user is no
longer valid, please log in
> again.</p></p>" & chr(10) & chr(13)
> WriteOutput( "<script
language=""javascript"">parent.location = ""
http://"
> & CGI.HTTP_HOST &
"/Login/Login.cfm"";</script>" );
> return false;
> }
>
> return true;
> </cfscript>
> </cffunction>
One thing I will say here is that I really think you should
be separating
your processing from your display. A function should do
processing. it
should pass that processing back to a CFM template which
should handle
whatever needs to be displayed on the browser. Although
that's nowt to do
with your current issue.
Adam

Problem with Sessions & CFID Changing Unexpectedly

MY SETUP...
ColdFusion version 8.01 Standard
Hotfix version hf801-00002.jar
Java version 1.6.0_04
server OS Windows 2008 Enterprise 32bit
webserver IIS 7.0.6
database MySql 5.0.67
THE PROBLEM
For some visitors, every page on the website gives them a new CFID/CFTOKEN. I tried to narrow it down to a particular browser, but it's happening in every browser. It's only happening for some people. It was happening to me, then it stopped. Not sure what I did to fix it, but it's still happening to others.
I'm using CFID/CFTOKEN (or more recently, a random number stored in a session.variable) as their temporary ID when they add something to their shopping cart. Problem is, when the CFID or session value changes, the items in their cart are no longer associated with them anymore - their cart appears to be empty at that point.
For the love of God, what is causing the CFID and Session variables to change on every page? I am storing the client global variables in a MySql table which was setup by CF Administrator and appears to be working properly.
Lastly, this site has been working fine for years, all of the sudden after some PCI Compliance conformity and CF Patches, this problem arose, so I want to blame it on the patches, but I'm not sure.
Has anyone else ever had this problem? How did you fix it?

It can also be (and will always be caused) by any user who's browser (or any part of the connection) does not maintain the cookies.
If the request does not contain a cookie with currently valid cfid|cftoken and|or cfsessionid values, ColdFusion will generate new ones. This can be cause by security settings in the browser, OS, firewall, proxy etc.
This has become an increasingly rare issue in modern Internet computing, but it was a fairly common back in the day when cookies where a new idea.

Problem with Sessions in Servlets

Hi,
I'm having a problem with sesions with servlets. It seems that if someone logs into my website, which is running on all servlets, while another person is logged on, the second person gets the session of the first person.
I'm using
HttpSession session = request.getSession(true);to get the session in each page. The session contains a user object which shows if the user is logged in and what permissions.
The session should be unique to the client computer right? Or am I jsut screwing this up big time?

Yes, each client will have their own session. However, you may be testing incorrectly:
In Firefox, for example, all instances of the application running on the same machine will share the same cookies, therefore the same session, and would be considered one client.
MS IE will do the same if you use File - New to open a new wondow rather than clicking on the desktop icon.
If the different clients are using different machines and still getting shared data, then you may be using class-level variables in the servlet, which would not be thread safe and could lead to your problems...
public class MyServlet extends HttpServlet {
String data; //bad
int moredata; //bad
public void doGet(...) ... { ... }
}

Row level security with session variables, not a best practice?

Hello,
We are about to implement row level security in our BI project using OBIEE, and the solution we found most convenient for our requirement was to use session variables with initalization blocks.
The problem is that this method is listed as a "non best practice" in the Oracle documentation.
Alternative Security Administration Options - 11g Release 1 (11.1.1)
(This appendix describes alternative security administration options included for backward compatibility with upgraded systems and are not considered a best practice.)
Managing Session Variables
System session variables obtain their values from initialization blocks and are used to authenticate Oracle Business Intelligence users against external sources such as LDAP servers or database tables. Every active BI Server session generates session variables and initializes them. Each session variable instance can be initialized to a different value. For more information about how session variable and initialization blocks are used by Oracle Business Intelligence, see "Using Variables in the Oracle BI Repository" in Oracle Fusion Middleware Metadata Repository Builder's Guide for Oracle Business Intelligence Enterprise Edition.
How confusing... what is the best practice then?
Thank you for your help.
Joao Moreira

authenticating / authorizing part is take care by weblogic and then USER variable initialized and you may use it for any initblocks for security.
Init block for authenticating / authorizing and session variables are different, i guess you are mixing both.

Problem with session variable

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