Need help on J2EE
Hi Genies
I am basically a java programmer and did lot of applets and application for two years. I was in the R&D for last 16 months and when i look back at the java it's gone very fast. Now i am lacking knowledge in J2EE. I know reading books won�t help that much so i would like to learn with some practical work. I heard that some Java technology-based open source projects are available? Did anybody know about it ?
If yes please advise me to some site or i am glad to work (not for money) with any Java Guru's from this forum to improve my knowledge.
Thanks
Shan
www.jboss.org
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Need help for J2EE Server0 failed starting
I am new in SAP and learning BI with ECC6.0 IDES. When I was doing BI-Java post-installation, I changed a little bit in EP, then J2EE Server0 failed to start, JVM exit code is -11113.
What I did is, in EP->System Administration->System Configuration->UME Configuration->SAP System, I changed the user/password from SAPJSF to J2EE_ADMIN because connection test failed. After change, the connection test succeed, so I save it. After restart, Server0 process in MMC failed with exit code -11113. I can not find any way to change it back because I can not access Portal any more.
I know it's stupid. Any help would be appreciated.
ShawnHi,
Have you tried to use the config tool? You might be able to make the change via the config tool as it can be accessed when the portal is stopped.
Here is some info from SAP Help on using the config tool: [http://help.sap.com/saphelp_nw70/helpdata/en/6f/258b2ef17d45a4afa45a00309a6a33/frameset.htm|http://help.sap.com/saphelp_nw70/helpdata/en/6f/258b2ef17d45a4afa45a00309a6a33/frameset.htm]
Hope this helps,
Simon -
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Hi,
what you may want to read is the following:
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skip the parts of XML parsing, soap etc.
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Chapter 1, 3
Chapter 11 to 14
Chapter 22-29
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I am a J2SE developer and I need to learn J2EE. I am trying to figure out how to compile .java files that I write that use J2EE such as servlets. I am using eclipse and Textpad but I can't get either program to recognize J2EE classes. Is this possible? I have downloaded the J2EE SDK and started with some basic .jsp pages but I am more of a programmer than a web designer, and I really don't like using markup languages(HTML, XML). This is probably really stupid, but can anyone help me out or just give me some starting words of wisdom?
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Need help in creating webas abap system
hi
new to create jco and techinical system need help
experts i have few faqs on creating techinical system plz help me
i have 4.7ee r/3 and portal 2004s sp9
wer can i find these values plz give me navigation
SID == ?
MESG SEVER PORT ===?
to add application server
application host name ==?
application instance number ==?
client number ==?
logical client name ==?
it is asking to select a software component wat we have to select to finish
wen i gave some dummy values
i get an error
CIM_ERR_ALREADY_EXISTS: Instance already exists: SAP_BCApplicationServer.CreationClassName="SAP_BCApplicationServer",Name="C11.Number.00.HostName.rama"
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but for that we need to create a techinical system
i followed these steps for techinical system
1 Step
selected web as abap
2nd step
sid = PRD
installation number== INITIAL
database host name== super
3rd step
message server name = 3600+instance
i took system number from sap gui(21)
so i gave 3600+21=3621
central application sever
instance number ==21
next pressed button -->add new logon group
entered longon group == entered value
which i found in t-code -smlg
4th Step
Add application server
host == gave r/3 ip 198.168.0.2
instance==21
client number = 800
logical client = left it empty
5 th step
selected one componenet and finished
after this i created the jco
1st Step general data
name =test1
client=800
2nd step j2ee cluster
checked the box
use local j2ee engine
3rd step
selected dictionary meta data
4 th
selected the techinical system
5th
user name -->sapuser
pasww-->india
pressed finish
now i found the jco in green color
but i pinged it
i got mesg
ping failed -
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I desperately need help for my project. I'm doing a shopping cart project. Created a java bean to establish connection to my sql 7 server database. But the following always appear. I'm using dreamweaver mx to create my webpage and so I use its binding and components feature.
Here's the error message I always get..
org.apache.jasper.JasperException: Unable to compile class for JSPNote: sun.tools.javac.Main has been deprecated.
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Generated servlet error:
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^
An error occurred at line: 36 in the jsp file: /TMP8ouafocg7v.jsp
Generated servlet error:
C:\tomcat4\work\Standalone\localhost\ArtGallery\TMP8ouafocg7v$jsp.java:166: Class org.apache.jsp.DBConn not found.
connect= (DBConn)
^
An error occurred at line: 36 in the jsp file: /TMP8ouafocg7v.jsp
Generated servlet error:
C:\tomcat4\work\Standalone\localhost\ArtGallery\TMP8ouafocg7v$jsp.java:171: Class org.apache.jsp.DBConn not found.
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^
3 errors, 1 warning
Anyone out there, pls let me know the solution soon. Thanks!I was glad I came across this note. I recently started a tutorial on J2EE , and have run into exactly the same error. Have you found a solution? Can you share it with me?
Thanks..... -
Need HELP with JAVA RUNTIME Environment
Hi,
I just download J2EE, J2SE, and Ant from sun site. I am having problem to compile java program. Here what I did
1) Download J2EE at c:\j2sdkee1.3.1 directory
2) J2SE at c:\Program Files\Java\j2re1.4.1_01 dir
3) Ant at ant c:\Jakarta_ant-1.3 dir
My operating system is windows 2000. Therefore, I set up environment variables from system ->Advance ->Environment ->Variables ->System variables ->New
Variable = ANT_HOME
Value = c:\ant\Jakarta_ant-1.3
Variable = J2EE_HOME
Value = C:\j2sdkee1.3.1
Variable = JAVA_HOME
Value = c:\Program Files\java\j2re1.4.1_01
Variable = CLASSPATH
Value = c:\j2sdk221.3.1\lib\j2eetools.jar
Edit
Variable = Path
Value =
%SystemRoot%\system32;%SystemRoot%;%SystemRoot%\System32\Wbem;C:\MSSQL7\BINN;%JAVA_HOME%\bin;%J2EE_HOME%\bin;%ANT_HOME%\bin
I restart my machine and try to execute the following command from command Prompt in c:\ dir
C:\> j2ee ?verbose
The following message pop up
?C:\Program? is not recognized as an internal or external command, operable program or batch file.
I would appreciate if someone explain me what I did wrong in set up so this test program is not working.
Do I need to run j2ee ?verbose some other directory? Which directory should I compile my java file?
Did I set up my environment variable correctly or I need to do something else?
Please help me out.
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Samtry to set JAVA_HOME environment variable to
C:\PROGRA~1\java\J2RE14~1.1_0
when you dir name contains space symbols, you should enclose it in commas or use a short form
"C:\Program Files\java\j2re1.4.1_01"
is equals to
C:\PROGRA~1\java\J2RE14~1.1_0 -
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I try to install Apache Axis on WLS6.1 (running on W2k), the WLS6.1 complains <Error>
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I have no problem to install Axis on Tomcat4.0.4(jdk1.3.1 on w2k)
and get samples running. Also I am using Apache soap2.3 on WLS6.1 and it works
fine.
Need help on Axis on WLS6.1. Thanks in advance.
cheers,
tom"David Maddison" <[email protected]> wrote:
The commons-logging.jar has a bad manifest file.
I solved this issue, by opening up the commons-logging.jar file in winzip,
deleting the manifest file, and Axis installed correctly.
Dave Maddison
"Tom Y" <[email protected]> wrote in message
news:[email protected]..
I try to install Apache Axis on WLS6.1 (running on W2k), the WLS6.1complains <Error>
<J2EE> <Error deploying application axis: Could not load axis>
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and get samples running. Also I am using Apache soap2.3 on WLS6.1 andit
works
fine.
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cheers,
tom -
Datasource connection with jboss, need help
Hi friends,
I am doing data source connection through Jboss (jboss-4.0.2) with mysql database. I am using java(j2sdk1.4.2_04). I have made all changes given in this link -- http://community.jboss.org/wiki/SetUpAMysqlDatasource
After making changes I restart jboss properly, but when I am going to attempt to connection through class. it give following error.
1.ERROR! Shared library ioser12 could not be found.
Can't find SerialContextProvider
When a create a diffrent new class, then give me this error.
2. ERROR! Shared library ioser12 could not be found.
Cannot get connection: javax.naming.CommunicationException: Can't find SerialContextProvider
Kindly help me out for this problem.
Thanks
Abhishek Jainuser13428037 wrote:
,,, JBoss ... give following error.
1.ERROR! Shared library ioser12 could not be found.
Can't find SerialContextProvider
When a create a diffrent new class, then give me this error.
2. ERROR! Shared library ioser12 could not be found.
Cannot get connection: javax.naming.CommunicationException: Can't find SerialContextProviderPlease don't crosspost http://www.javaprogrammingforums.com/jdbc-databases/6353-datsource-connection-mysql-need-help.html#post22533
The
ERROR! Shared library ioser12 could not be found.error message has nothing to do with you adding a datasource.
It would happen even before you made the datasource configuration changes.
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All Web Dynpros are down... I really need help.
Hi. I really need help because our portal has serious problems since yesterday. All of them seem to be related to missing Jar files.
After installing several SCA files using SDM (Software Deployment Manager) yesterday, all Web Dynpros stopped working (even SAP Dynpros such as User Management).
I've been looking for solutions all day and can't find anything. Any help would be greatly appreciated. Here are the errors I get:
All homemode Dynpros show the following error:
java.lang.NoClassDefFoundError
at com.sap.tc.webdynpro.serverimpl.wdc.sl.SystemLandscapeFactory.getJCOClientConnectionUnMapped(SystemLandscapeFactory.java:168)
at com.sap.tc.webdynpro.serverimpl.wdc.sl.SystemLandscapeFactory.getJCOClientConnectionUnMapped(SystemLandscapeFactory.java:178)
at com.sap.tc.webdynpro.services.sal.sl.core.SystemLandscapeInternal.getJCOClientConnectionUnMapped(SystemLandscapeInternal.java:62)
at com.sap.tc.webdynpro.services.datatypes.core.DataTypeBroker$1.fillSldConnection(DataTypeBroker.java:77)
at com.sap.dictionary.runtime.ProviderFactory.internalResolveLogicalNameToJCODestination(ProviderFactory.java:437)
... 61 more
For SAP's Dynpros, I get the following error:
java.lang.NoSuchMethodError: com.sap.portal.activitydatacollector.ICollectorHook.isActive()Z
at com.sap.portal.activityreport.ActivityReportHookInterface.updateADCAfterInteraction(ActivityReportHookInterface.java:176)
at com.sap.portal.activityreport.ActivityReportHookInterface.onAfterInteraction(ActivityReportHookInterface.java:145)
at com.sap.portal.activityreport.wdp.InternalActivityReportHookInterface.onAfterInteraction(InternalActivityReportHookInterface.java:128)
at com.sap.portal.activityreport.wdp.InternalActivityReportHookInterface$External.onAfterInteraction(InternalActivityReportHookInterface.java:167)
at com.sap.portal.pb.hook.PortalHooksManager.updateHooks(PortalHooksManager.java:58)
... 34 moreI do have access to it.
Here are two examples of errors/warnings we got a lot during the upgrade:
Caused by: com.sap.engine.frame.core.locking.LockException: Cannot lock [2010112417061085000000portail......................3814850, DEPLOY_LOCK_AREA, sap.com/com.sap.lcr, X]; it is in use by the same owner. In case of lock mode "R" the lock propagation failed, because the optimistic lock is gone.
Caught exception during application deployment from SAP J2EE Engine's deploy service:
java.rmi.RemoteException: Already started operation with application sap.com/com.sap.lcr in the cluster. No other operation with this application is allowed at the moment..
Another thing that could help you understand my problem: when I log into Portal and go to Content Admin / Web Dynpro / Main JCO destinations, even if my destination's status is set to OK (green light), I get this Java error if I click on "test":
java.lang.NoClassDefFoundError
at com.sap.tc.webdynpro.serverimpl.wdc.sl.SystemLandscapeFactory.getJCOClientConnection (SystemLandscapeFactory.java:150)
at com.sap.tc.webdynpro.services.sal.sl.api.WDSystemLandscape.getJCOClientConnection(WDSystemLandscape.java:30)
at com.sap.tc.webdynpro.tools.explorer.JCOConnectionsDetails.onActionTestConnection(JCOConnectionsDetails.java:226)
at com.sap.tc.webdynpro.tools.explorer.wdp.InternalJCOConnectionsDetails.wdInvokeEventHandler(InternalJCOConnectionsDetails.java:303)
at com.sap.tc.webdynpro.progmodel.generation.DelegatingView.invokeEventHandler(DelegatingView.java:87)
... 28 more
Thanks again.
Edited by: Mathieu St-Gelais on Nov 29, 2010 3:13 PM -
Need help to develop Pythagoras theorem-
Hi i need help to develop proofs 2,3,4
of pythagoras theorems in java as demonstrations
These are applets can anyone help me with it or give me an idea of how to go about developing it -
the site is the following
http://www.uni-koeln.de/ew-fak/Mathe/Projekte/VisuPro/pythagoras/pythagoras.html
then double click on the screen to make it startPardon my ASCII art, but I've always liked the following, simple, geometric proof:
a b
---------------------------------------+
| | |
a| I | II |
| | |
---------------------------------------+
| | |
| | |
| | |
| | |
| | |
b| IV | III |
| | |
| | |
| | |
| | |
| | |
| | |
---------------------------------------+It almost goes without saying that I+II+III+IV == (a+b)^2, and II == IV == a*b,
I == a*a and III == b*b, showing that (a+b)^2 == a^2+a*b+a*b+b^2.
I hope the following sketch makes sense, stand back, ASCII art alert again: a b
---------------------------------------+
| . VI |
| . . |a
| V . |
| +
| |
| . |
b| . |
| |
| IX |
| . |
| . |b
| |
+ |
| . |
a| . . VII |
| VIII . |
---------------------------------------+
a bThe total area equals (a+b)^2 again and equals the sum of the smaller areas:
(a+b)^2 == V+VI+VII+VIII+IX. Let area IX be c^2 for whatever c may be.
V+VII == VI+VIII == a*b, so a^2+b^2+2*ab= c^2+2*a*b; IOW a^2+b^2 == c^2
Given this fundamental result, the others can easily be derived from this one,
or did I answer a question you didn't ask?
kind regards,
Jos -
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Need help to open audios attached in a PDF file
Hello
I just need help. I have ordered a reviewer online that has audios and texts in a pdf file. I was told to download the latest adobe reader on my computer. I have done the same thing on my ipad mini. I am not so technical with regards to these things. Therefore I need help. I can access the audios on my computer but not on my ipad.
I want to listen to audios with scripts or texts on them so i can listen to them when i am on the go. I was also informed that these files should work in any device. How come the audios doesnt work on my ipad.
Please help me on what to do.
ThanksAudio and video are not currently support on Adobe Reader. :-<
You need to buy a PDF reader that supports them. My suggestion is PDF Expert from Readdle ($US 9.99)
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