Connect swing and J2EE

In WEB Application i used JSP, Struts and J2EE.
But Now use swing application, and something for joing swing and j2ee
Somebody knows something...
I need your help....

In WEB Application i used JSP, Struts and J2EE.
But Now use swing application, and something for joing
swing and j2ee
hopefully, no business logic is in struts; only the application logic (i.e. order of screens, input type validation, etc.). If this is the case you have many options:
- direct calls to the ejb (assuming you have a service defined as an EJB)
- SOAP, SOAP-RPC, or a full web-service (as mentioned above)
- your own custom protocol over HTTP
- RMI (probably too much work; easier to just make direct EJB calls)
- JMS (probably more work than just using SOAP or HTTP)
- Socket based communication with your own custom protocol
Probably the fastest to get going is direct calls from swing to the EJB.
You'll have to re-implement your application logic; but this is fine as the swing app will probably have a different flow than the web-app.
Best of luck,
Andrew

Similar Messages

Error swing and j2ee

I have an application based on on j2ee. All the logica of the program this in J�E but the part client I am doing it in swing.
I want to know if there is "something" with which I can unite the transference of information between the layer swing and j2ee.
But of all ways I am making an example fast but I have an error and not like solving it.
I am using Oracle9i, JDevelepoer 9.0.5 and the code is:
Context context = new InitialContext();
clienteBOHome = (ClienteBOHome)PortableRemoteObject.narrow(context.lookup("java:comp/env/ejb/cliente"), ClienteBOHome.class);
clienteBO = clienteBOHome.create();
colClientes = (Vector)clienteBO.listarClientes();
And the error is:
javax.naming.NoInitialContextException: Need to specify class name in environment or system property, or as an applet parameter, or in an application resource file: java.naming.factory.initial
at javax.naming.spi.NamingManager.getInitialContext(NamingManager.java:640)
at javax.naming.InitialContext.getDefaultInitCtx(InitialContext.java:243)
at javax.naming.InitialContext.getURLOrDefaultInitCtx(InitialContext.java:280)
at javax.naming.InitialContext.lookup(InitialContext.java:347)
at com.tsawi.pm.gui.ListarClientes.jbInit(ListarClientes.java:58)
at com.tsawi.pm.gui.ListarClientes.<init>(ListarClientes.java:44)

Hi raguero,
if you want to create and use a naming context, you need a JNDI service provider. A JNDI service provider is who provides a client 2 thinks:
1) A Context Factory, which JNDI API uses tu build JNDI context
2) A service listening on an host-port
If you deploy your J2EE app under J2EE RI, you connect to JNDI service by this url:
iiop://hostname:1050 (by default)
and context factory to use is "com.sun.jndi.cosnaming.CNCtxFactory"
so you got context like this:
Properties prop=new Properties();
prop.add(Context.INITIAL_CONTEXT_FACTORY,"com.sun.jndi.cosnaming.CNCtxFactory");
prop.add(Context.PROVIDER_URL,"iiop://hostname:1050")
Context jndiContext=new InitialContext(prop);
Obvious, com.sun.jndi.cosnaming.CNCtxFactory class must be in client classpath.
Fil

Connection pooling and auditing on an oracle database

Integration of a weblogic application with an oracle backend,
Connection pooling, and auditing ,2 conflicting requirements ?
Problem statement :
We are in the process of maintaining a legacy client server application where
the client is
written in PowerBuilder and the backend is using an Oracle database.
Almost all business logic is implemented in stored procedures on the database.
When working in client/server mode ,1 PowerBuilder User has a one-to-one relation
with
a connection(session) on the oracle database.
It is a requirement that the database administrator must see the real user connected
to the database
and NOT some kind of superuser, therefore in the PowerBuilder app each user connects
to the database
with his own username.(Each user is configured on the database via a seperate
powerbuilder security app).
For the PowerBuilder app all is fine and this app can maintain conversional state(setting
and
reading of global variables in oracle packages).
The management is pushing for web-based application where we will be using bea
weblogic appserver(J2EE based).
We have build an business app which is web-based and accessing the same oracle
backend app as
the PowerBuilder app is doing.
The first version of this web-based app is using a custom build connector(based
on JCA standard and
derived from a template provided by the weblogic integration installation).
This custom build connector is essentially a combination of a custom realm in
weblogic terms
and a degraded connection pool , where each web session(browser) has a one-to-one
relation
with the back end database.
The reason that this custom connector is combining the security functionality
and the pooling
functionality , is because each user must be authenticated against the oracle
database(security requirement)
and NOT against a LDAP server, and we are using a statefull backend(oracle packages)
which would make it
difficult to reuse connections.
A problem that surfaced while doing heavy loadtesting with the custom connector,
is that sometimes connections are closed and new ones made in the midst of a transaction.
If you imagine a scenario where a session bean creates a business entity ,and
the session bean
calls 1 entity bean for the header and 1 entity bean for the detail, then the
header and detail
must be created in the same transaction AND with the same connection(there is
a parent-child relationship
between header and detail enforced on the back end database via Primary and Foreing
Keys).
We have not yet found why weblogic is closing the connection!
A second problem that we are experincing with the custom connector, is the use
of CMP(container managed persistence)
within entity beans.
The J2EE developers state that the use of CMP decreases the develoment time and
thus also maintenance costs.
We have not yet found a way to integrate a custom connector with the CMP persistence
scheme !
In order to solve our loadtesting and CMP persistence problems i was asked to
come up with a solution
which should not use a custom connector,but use standard connection pools from
weblogic.
To resolve the authentication problem on weblogic i could make a custom realm
which connects to the
backend database with the username and password, and if the connection is ok ,
i could consider this
user as authenticated in weblogic.
That still leaves me with the problem of auditing and pooling.
If i were to use a standard connection pool,then all transaction made in the oracle
database
would be done by a pool user or super user, a solution which will be rejected
by our local security officer,
because you can not see which real user made a transaction in the database.
I could still use the connection pool and in the application , advise the application
developers
to set an oracle package variable with the real user, then on arrival of the request
in the database,
the logic could use this package variable to set the transaction user.
There are still problems with this approach :
- The administrator of the database can still not see who is connected , he will
only see the superuser connection.
- This scheme can not be used when you want to use CMP persistence , since it
is weblogic who will generate the code
to access the database.
I thought i had a solution when oracle provided us with a connection pool known
as OracleOCIConnectionPool
where there is a connection made by a superuser, but where sessions are multiplexed
over this physical pipe with the real user.
I can not seem to properly integrate this OCI connectionpool into weblogic.
When using this pool , and we are coming into a bean (session or entity bean)
weblogic is wrapping
this pool with it's own internal Datasource and giving me back a connection of
the superuser, but not one for the real user,
thus setting me with my back to the wall again.
I would appreciate if anyone had experienced the same problem to share a possible
solution with us
in order to satisfy all requirements(security,auditing,CMP).
Many Thanks
Blyau Gino
[email protected]

Hi Blyau,
As Joe has already provided some technical advice,
I'll try to say something on engineering process level.
While migrating an application from one technology to
other, like client-server to n-tier in you case, customers and
stakeholders want to push into the new system as many old
requirements as possible. This approach is AKA "we must
have ALL of the features of the old system". Mostly it happens
because they don't know what they want. Ad little understanding
of abilities of the new technology, and you will get a requirement
like the one you have in you hands.
I think "DBA must see real user" is one of those. For this
type of requirements it can make sense to try to drop it,
or to understand its nature and suggest alternatives. In this
particular case it can be a system that logs user names,
login and logout times.
Blind copying of old features into an incompatible new architecture
may endanger the whole project and can result in its failure.
Hope this helps.
Regards,
Slava Imeshev
"Blyau Gino" <[email protected]> wrote in message
news:[email protected]...
>
Integration of a weblogic application with an oracle backend,
Connection pooling, and auditing ,2 conflicting requirements ?
Problem statement :
We are in the process of maintaining a legacy client server applicationwhere
the client is
written in PowerBuilder and the backend is using an Oracle database.
Almost all business logic is implemented in stored procedures on thedatabase.
When working in client/server mode ,1 PowerBuilder User has a one-to-onerelation
with
a connection(session) on the oracle database.
It is a requirement that the database administrator must see the real userconnected
to the database
and NOT some kind of superuser, therefore in the PowerBuilder app eachuser connects
to the database
with his own username.(Each user is configured on the database via aseperate
powerbuilder security app).
For the PowerBuilder app all is fine and this app can maintainconversional state(setting
and
reading of global variables in oracle packages).
The management is pushing for web-based application where we will be usingbea
weblogic appserver(J2EE based).
We have build an business app which is web-based and accessing the sameoracle
backend app as
the PowerBuilder app is doing.
The first version of this web-based app is using a custom buildconnector(based
on JCA standard and
derived from a template provided by the weblogic integrationinstallation).
This custom build connector is essentially a combination of a custom realmin
weblogic terms
and a degraded connection pool , where each web session(browser) has aone-to-one
relation
with the back end database.
The reason that this custom connector is combining the securityfunctionality
and the pooling
functionality , is because each user must be authenticated against theoracle
database(security requirement)
and NOT against a LDAP server, and we are using a statefull backend(oraclepackages)
which would make it
difficult to reuse connections.
A problem that surfaced while doing heavy loadtesting with the customconnector,
>
is that sometimes connections are closed and new ones made in the midst ofa transaction.
If you imagine a scenario where a session bean creates a business entity,and
the session bean
calls 1 entity bean for the header and 1 entity bean for the detail, thenthe
header and detail
must be created in the same transaction AND with the same connection(thereis
a parent-child relationship
between header and detail enforced on the back end database via Primaryand Foreing
Keys).
We have not yet found why weblogic is closing the connection!
A second problem that we are experincing with the custom connector, is theuse
of CMP(container managed persistence)
within entity beans.
The J2EE developers state that the use of CMP decreases the develomenttime and
thus also maintenance costs.
We have not yet found a way to integrate a custom connector with the CMPpersistence
scheme !
In order to solve our loadtesting and CMP persistence problems i was askedto
come up with a solution
which should not use a custom connector,but use standard connection poolsfrom
weblogic.
To resolve the authentication problem on weblogic i could make a customrealm
which connects to the
backend database with the username and password, and if the connection isok ,
i could consider this
user as authenticated in weblogic.
That still leaves me with the problem of auditing and pooling.
If i were to use a standard connection pool,then all transaction made inthe oracle
database
would be done by a pool user or super user, a solution which will berejected
by our local security officer,
because you can not see which real user made a transaction in thedatabase.
I could still use the connection pool and in the application , advise theapplication
developers
to set an oracle package variable with the real user, then on arrival ofthe request
in the database,
the logic could use this package variable to set the transaction user.
There are still problems with this approach :
- The administrator of the database can still not see who is connected ,he will
only see the superuser connection.
- This scheme can not be used when you want to use CMP persistence , sinceit
is weblogic who will generate the code
to access the database.
I thought i had a solution when oracle provided us with a connection poolknown
as OracleOCIConnectionPool
where there is a connection made by a superuser, but where sessions aremultiplexed
over this physical pipe with the real user.
I can not seem to properly integrate this OCI connectionpool intoweblogic.
When using this pool , and we are coming into a bean (session or entitybean)
weblogic is wrapping
this pool with it's own internal Datasource and giving me back aconnection of
the superuser, but not one for the real user,
thus setting me with my back to the wall again.
I would appreciate if anyone had experienced the same problem to share apossible
solution with us
in order to satisfy all requirements(security,auditing,CMP).
Many Thanks
Blyau Gino
[email protected]

How dynamically create connection pool and Datasource

Hi
How I can dynamically create a connection pool and Data source in Oracle 10g Application server. In our J2EE application the user will be login with db user name, password and database name. I want to create connection pool and data source on the fly while login the user with database name. I our application we have access approximate 80 Databases. so my approach is given bellow
1) Planning to create 80 connection pools and 80 Data sources so when user logs in while selecting the db name i will call the appropriate data source and create the DB connection. Is there any limitation to create number of data sources in oracle app server?
2) Create DB connection with out using connection pool and data source. But i am not prefer this approach coz we need to handle some transaction in our application.
Kindly throw some light on managing connection pool programmatically or in application run time.
I would really appreciate if any one can provide any links or any inormation on this issue.
Thanks in advance.

Kindly let me know is there any drawbacks to create 80 Data Sources to connect 80 database in Oracle 10G App server and each data sources should have one connection pool. so i need to create 80 connection pool. Please let me know is this right approach or any work around to create Data source on fly for each request for corresponding database.

JWSDP and J2EE Integration: Doesn't work. What's the point?

My problems involve the integration of JWSDP and J2EE as described in these two documents:
http://developer.java.sun.com/developer/technicalArticles/WebServices/wsj2ee/
http://java.sun.com/j2ee/documentation/windows_guide.html
It looks like a long one, but it�s really not that bad. All comments are appreciated.
I�ve numbered each line-paragraph-section for easy reference later.
(1) My ultimate goal is to setup a website that displays data from a database. I will use Java, Apache, Oracle, and whatever else I need to create a website that uses servlets, JavaServer Pages (JSP), and JDBC.
(2) I�ve got four Pentium III computers:
1. Windows 2000 Server to be the web server (MyWebServer, IP = 10.10.1.1).
2. Windows 2000 Professional to be the database server (MyDatabaseServer, IP = 10.10.1.2).
3. Windows 2000 Professional that I use to develop and test (MyDeveloperPC, IP = 10.10.1.3).
4. Windows 2000 Professional that I use as a client to connect to the website (MyClientPC, IP = 10.10.1.4).
(3) On MyWebServer I installed the following:
Java 2 Standard Edition (J2SE)
Java 2 Enterprise Edition (J2EE)
Java Web Services Developer Pack (JWSDP)
The JWSDP tutorial
Apache HTTP Server
(4) The files I downloaded and installed are as follows:
j2sdk-1_4_0-rc-win.exe
j2sdkee-1_3_1-win.exe
jwsdp-1_0-ea1-win.exe
jwsdp-1_0-ea1_01-tutorial.zip
apache_1.3.23-win32-x86-no_src.exe
(5) After installing these products, I set the environment variables as follows:
JAVA_HOME = c:\j2se
J2EE_HOME = c:\j2ee
JWSDP_HOME = c:\jwsdp
Path = c:\j2se\bin;c:\j2ee\bin;c:\jwsdp\bin; [and other previous statements]
(6) I checked to see that Apache is running as a service. It is.
On MyWebServer I start Tomcat and J2EE. Both start properly and are operating simultaneously.
(7) From MyClientPC I open Internet Explorer and in the address box I type:
http://10.10.1.1
This displays the page c:\ApacheHTTP\apache\htdocs\index.html.en (The Apache default server installation page.)
(8) I then enter this address in IE:
http://10.10.1.1:8080
This displays the page c:\jwsdp\webapps\root\index.html (The default JWSDP page).
(9) I then enter this address in IE:
http://10.10.1.1:8000
This displays the page c:\j2ee\public_html\index.html (The J2EE 1.3 Default Home Page).
(10) So far so good. Now I want to test JWSDP as a container for JSP pages.
(11) I use ant to build the converter app found in the tutorial examples (in folder c:\jwsdp\�\tutorial\examples\gs). I then deploy the converter app to the c:\jwsdp\webapps\gs folder.
(12) From MyClientPC I open Internet Explorer and in the address box I type:
http://10.10.1.1:8080/gs
The converter app works perfectly.
(13) To eliminate the need to enter the port number, I create a link from the Apache default server installation page to the converter app. From MyClientPC and enter this address into IE:
http://10.10.1.1
I then click on the link to the converter app and it works perfectly.
(14) Question: Is this the best way to display JSP pages without having to enter the port number?
(15) Now it�s time to integrate JWSDP and J2EE as described in these two documents:
http://developer.java.sun.com/developer/technicalArticles/WebServices/wsj2ee/
http://java.sun.com/j2ee/documentation/windows_guide.html
(16) After I complete this integration I cannot start both Tomcat and J2EE at the same time. This makes sense because they both share port 8080.
I start Tomcat.
(17) From MyClientPC and use Internet Explorer to test the various relevant addresses. Everything works the same as it did before except this one:
http://10.10.1.1:8000
The page cannot be displayed. The J2EE default home page is not displayed, which makes sense because the J2EE port is no longer 8000; it has been changed to 8080.
(18) Now I shutdown Tomcat and start J2EE.
From MyClientPC and use Internet Explorer to test the various relevant addresses:
(19) http://10.10.1.1:8080
Displays the JWSDP default home page.
(20) http://10.10.1.1:8080/gs
The page cannot be displayed. The converter app no longer works.
(21) From MyWebServer and use Internet Explorer to test localhost:
http://localhost:8080
This displays the J2EE default home page.
(22) Question: Why does localhost give me a different page than the IP address?
(23) Question: What was the point of integrating JWSDP and J2EE?
(24) I want to get the converter app working, so I create a .war file and attempt to add it to the J2EE deploytool (see the two integration documents listed above at section 15.) I create the .war file following the instructions in the JWSDP tutorial:
http://java.sun.com/webservices/docs/ea1/tutorial/doc/WebApp3.html#64606
(25) I change to the c:\jwsdp\�\tutorial\examples\gs\build folder.
I then type:
jar cvf converter.war .
A .war file is created.
(26) I open the deploytool: File, New, Application, and I name it �converter�.
I attempt to add the .war file: File, Add to Application, Web WAR.
(27) When I attempt to add the converter.war file I get this error:
�converter.war does not appear to be a valid web JAR.�
I tried a few different attempts, all with the same result. I�m stuck.
(28) I ask again, What was the point of integrating JWSDP and J2EE?
(29) If this is the preferred configuration, how do I display my JSP pages like the converter app?
Please help!!!

The JWSDP tutorial says to be in the �build� folder of the example when issuing the jar command to create the .war file. The build folder is created when I run the �ant build� command.
Attempt 1 from the command prompt in folder c:\jwsdp\tutorial\examples\gs\build>
I typed this command:
jar cvf c:\jaxmservices\converter.war .
In this case I directed the .war file to be placed in a different folder as you suggested. Here�s the output:
added manifest
adding: index.jsp(in = 921) (out= 525)(deflated 42%)
adding: WEB-INF/(in = 0) (out= 0)(stored 0%)
adding: WEB-INF/classes/(in = 0) (out= 0)(stored 0%)
adding: WEB-INF/classes/Converter.class(in = 582) (out= 358)(deflated 38%)
Didn�t work. Same error as before.
Attempt 2 from the same folder:
I typed this command as you suggested (I tried it with and without the final dot):
jar tvf converter.war
Here is the output:
java.io.FileNotFoundException: converter.war (The system cannot find the file specified)
at java.io.FileInputStream.open(Native Method)
at java.io.FileInputStream.<init>(FileInputStream.java:103)
at java.io.FileInputStream.<init>(FileInputStream.java:66)
at sun.tools.jar.Main.run(Main.java:185)
at sun.tools.jar.Main.main(Main.java:904)
I tried a few other variations on these attempts with no luck. I�m stuck.
I�m attempting to create a .war file out of two files: index.jsp and converter.class.
Now that I�ve integrated JWSDP and J2EE, is there some other way that I can run the converter app instead of a .war file and the deploytool? In other words, if I go back to using ant to build and deploy converter, where would I deploy it so that it will work with J2EE?
By the way, it doesn�t have to be converter. I�d be happy if I could get any JSP page to work in J2EE after the integration.
Forever grateful,
Logan

Java.lang.NullPointerException when connect to the J2EE engine

I want to connect to the J2EE engine ,but the error message "java.lang.NullPointerException" is displayed in the console. Please help me ! Thank you !! The full error exception like this:
java.lang.NullPointerException
        at com.sap.engine.services.adminadapter.gui.tasks.LoginTask.connectActio
n(LoginTask.java:191)
        at com.sap.engine.services.adminadapter.gui.tasks.LoginTask.run(LoginTas
k.java:79)
        at java.lang.Thread.run(Thread.java:534)

Hi:
The whole errror message like this:(deploy aborted error message)
2009/4/27 上午 08:53:52 /userOut/deploy (com.sap.ide.eclipse.sdm.threading.DeployThreadManager) [Thread[Deploy Thread,5,main]] ERROR:
[001]Deployment aborted
Settings
SDM host : 10.138.6.10
SDM port : 50118
URL to deploy : file:/C:/DOCUME1/F3221789/LOCALS1/Temp/temp53268foxconn.com~bbs_demo.ear
Result
=> deployment aborted : file:/C:/DOCUME1/F3221789/LOCALS1/Temp/temp53268foxconn.com~bbs_demo.ear
Aborted: development component 'bbs_demo'/'foxconn.com'/'LOKAL'/'0.2009.04.27.08.53.22':
Cannot login to the SAP J2EE Engine using user and password as provided in the Filesystem Secure Store. Enter valid login information in the Filesystem Secure Store using the SAP J2EE Engine Config Tool. For more information, see SAP note 701654.
com.sap.sdm.serverext.servertype.inqmy.extern.DeployManagerAuthExceptionWrapper: Wrong security credentials detected while trying to obtain connection to the J2EE Engine.
(message ID: com.sap.sdm.serverext.servertype.inqmy.extern.EngineApplOnlineDeployerImpl.checkLoginCredentials.DMAUTHEXC)
Deployment exception : The deployment of at least one item aborted
The Log infomation is like this:
2009/4/27 上午 08:53:52 /userOut/deploy (com.sap.ide.eclipse.sdm.threading.DeployThreadManager) [Thread[Deploy Thread,5,main]] INFO:
[001]Additional log information about the deployment
<!LOGHEADER[START]/>
<!HELP[Manual modification of the header may cause parsing problem!]/>
<!LOGGINGVERSION[1.5.3.7185 - 630]/>
<!NAME[D:\usr\sap\SCM\DVEBMGS01\SDM\program\log\sdmcl20090427005331.log]/>
<!PATTERN[sdmcl20090427005331.log]/>
<!FORMATTER[com.sap.tc.logging.TraceFormatter(%24d %s: %m)]/>
<!ENCODING[MS950]/>
<!LOGHEADER[END]/>
Apr 27, 2009 8:53:32 AM Info: -
Starting deployment -
Apr 27, 2009 8:53:32 AM Info: Error handling strategy: OnErrorStop
Apr 27, 2009 8:53:32 AM Info: Prerequisite error handling strategy: OnPrerequisiteErrorStop
Apr 27, 2009 8:53:32 AM Info: Update strategy: UpdateAllVersions
Apr 27, 2009 8:53:32 AM Info: Starting deployment prerequisites:
Apr 27, 2009 8:53:36 AM Info: Loading selected archives...
Apr 27, 2009 8:53:36 AM Info: Loading archive 'D:\usr\sap\SCM\DVEBMGS01\SDM\program\temp\temp53268foxconn.com~bbs_demo.ear'
Apr 27, 2009 8:53:37 AM Info: Selected archives successfully loaded.
Apr 27, 2009 8:53:37 AM Info: Actions per selected component:
Apr 27, 2009 8:53:37 AM Info: Update: Selected development component 'bbs_demo'/'foxconn.com'/'LOKAL'/'0.2009.04.27.08.53.22' updates currently deployed development component 'bbs_demo'/'foxconn.com'/'LOKAL'/'0.2009.04.23.14.34.21'.
Apr 27, 2009 8:53:37 AM Info: Ending deployment prerequisites. All items are correct.
Apr 27, 2009 8:53:39 AM Error: Unable to compare host[sidcsms.foxconn.com] and host[GDS-SF-F21789] Throwable: java.net.UnknownHostException Throwable message: GDS-SF-F21789: GDS-SF-F21789
Apr 27, 2009 8:53:39 AM Info: Saved current Engine state.
Apr 27, 2009 8:53:39 AM Info: Starting: Update: Selected development component 'bbs_demo'/'foxconn.com'/'LOKAL'/'0.2009.04.27.08.53.22' updates currently deployed development component 'bbs_demo'/'foxconn.com'/'LOKAL'/'0.2009.04.23.14.34.21'.
Apr 27, 2009 8:53:39 AM Info: SDA to be deployed: D:\usr\sap\SCM\DVEBMGS01\SDM\root\origin\foxconn.com\bbs_demo\LOKAL\0.2009.04.27.08.53.22\temp53268foxconn.com~bbs_demo.ear
Apr 27, 2009 8:53:39 AM Info: Software type of SDA: J2EE
Apr 27, 2009 8:53:40 AM Info: ***** Begin of SAP J2EE Engine Deployment (J2EE Application) *****
Apr 27, 2009 8:53:43 AM Error: Unable to compare host[sidcsms.foxconn.com] and host[GDS-SF-F21789] Throwable: java.net.UnknownHostException Throwable message: GDS-SF-F21789: GDS-SF-F21789
Apr 27, 2009 8:53:44 AM Info: ***** End of SAP J2EE Engine Deployment (J2EE Application) *****
Apr 27, 2009 8:53:44 AM Error: Aborted: development component 'bbs_demo'/'foxconn.com'/'LOKAL'/'0.2009.04.27.08.53.22':
Cannot login to the SAP J2EE Engine using user and password as provided in the Filesystem Secure Store. Enter valid login information in the Filesystem Secure Store using the SAP J2EE Engine Config Tool. For more information, see SAP note 701654.
com.sap.sdm.serverext.servertype.inqmy.extern.DeployManagerAuthExceptionWrapper: Wrong security credentials detected while trying to obtain connection to the J2EE Engine.
(message ID: com.sap.sdm.serverext.servertype.inqmy.extern.EngineApplOnlineDeployerImpl.checkLoginCredentials.DMAUTHEXC)
Apr 27, 2009 8:53:44 AM Info: Starting to save the repository
Apr 27, 2009 8:53:44 AM Info: Finished saving the repository
Apr 27, 2009 8:53:44 AM Info: J2EE Engine is in same state (online/offline) as it has been before this deployment process.
Apr 27, 2009 8:53:44 AM Error: -
At least one of the Deployments failed -
Edited by: sap-abap-tw on Apr 27, 2009 3:01 AM

Java Swing and Socket Programming

I am making a Messenger like yahoo Messenger using Swing and Socket Programming ,Multithreading .
Is this techology feasible or i should try something else.
I want to display my messenger icon on task bar as it comes when i install and run Yahoo Messenger.
Which class i should use.

I don't really have an answer to what you are asking. But I am developing the same kind of application. I am using RMI for client-server and server-server (i have distributed servers) communication and TCP/IP for client-client. So may be we might be able to help each other out. My email id is [email protected]
Are you opening a new socket for every conversation? I was wondering how to multithread a socket to reuse it for different connections, if it is possible at all.
--Poonam.

How to connect Mysql to J2EE server exactly?

Hi,there
I would like thank you for offering me your precious opinion in advance.
I got a problem with installing Mysql database into J2EE server. All I have done is:
1.Install Mysql and put the Mysql driver,mm.mysql-2.0.4-bin.jar into the directory of J2EE which is j2ee1.3.1/lib.
2. Set the environment variable for invoking the Mysql driver like
this,CLASSPATH=.;%JAVA_HOME%\lib\mysql-connector-java-2.0.14-bin;%
J2EE_HOME%\lib\mysql-connector-java-2.0.14-bin;%JAVA_HOME%\bin;
3.Modify the content of Server.xml file located in J2EE directory like this:
<DefaultContext>
<Resource name="jdbc/mysql" auth="Container"
type="javax.sql.DataSource" />
<ResourceParams name="jdbc/mysql">
<parameter>
<name>driverClassName</name>
<value>org.gjt.mm.mysql.Driver</value>
</parameter>
<parameter>
<name>drivername</name>
<value>jdbc:mysql:localhost:3306:mobiledb</value>
</parameter>
</ResourceParams>
</DefaultContext>
So far,I have no success in connect Mysql to J2EE server. What am I doing wrong?
Thank you for your kind help.

hi, sameer
Thank you for reply. Could you tell me exactly the documents that you see? Do you mean "J2EE tutorial documents"?
Thanks for advice.
Revon

Difference between J2SE and J2EE...

Hi all. I was wondering what the difference between J2SE and J2EE were. I mean in the code structure. Are the packages the same, like Swing, IO, things like that. I'm a bit of a beginner in Java, only been messing around with it for about 6 months now kind of in my spare time, and I know I'm in now way ready for J2EE, but it's something I think I'd like to maybe look into. I know it's for Enterprise Applications, much bigger scale than I'm used to, but fundamentally, how is it different? Different coding conventions? New packages not in J2SE? I hope what I want is coming across okay. Thanks for all the input.
James

J2EE defines a large number of specifications, in addition to J2SE. Examples are the Servlet, JSP, JMS, and EJB specifications. Most of those specifications are designed to have implementations running inside an Application Server. There are free implementations available such as JBoss (combined with for example Tomcat), and I think youre best bet to learn is to download one of those and go from there. Servlets and JSP are a good beginning, and then maybe move on to EJB and the rest.
Br - J

Error creating connection pool in j2ee 1.4

i want to create a connection pool in j2ee 1.4 but it is giving an error " sun.jdbc.odbc.JdbcOdbcDriver"
the driver class i enter is sun.jdbc.odbc.JdbcOdbcDriver
please tell me the possible error

now, i have installed j2ee 1.5 bundled version. Now i have tried the same thing. nut it is giving an error "sun.jdbc.odbc.JdbcOdbcDriver canot be cast to javax.sql.XADataSource".
Now, i have downloaded Microsoft jdbc Driver for SQL Server 2000 and set the classpath for those three files that comes under the lib folder. Then i used "com.microsoft.jdbcx.sqlserver.SQLServerDataSource" class, then another error comes "Class not found or classpath is not set for "com.microsoft.jdbcx.sqlserver.SQLServerDataSource" class.
however, this class file is packed in one of those three jar files for which i have set the classpath.
PLEASE HELP

Connector for tomcat and j2ee

I have a login system created. It creates accounts into a mysql server at the moment. I want the users to be able to log in. I need the correct details in my "my-DB-plan.xml" file in order to be able to connect to the SQL server. Im not sur what to put in this file or whether im to use a server.xml file
Any Help.Please.

Our[b] login.html page is simple as follows:
<html><head><title>
J2EE SQL Security and Registry System Demo
</title></head><body>
<h1>LOGIN using Derby and J2EE declarative security!</h1>
<form method="POST" action="j_security_check">
Username:<br>
<input size="20" name="j_username">
<br><br>
Password:<br>
<input size="20" name="j_password" type="password">
<input name="submit" type="submit" value="Login">
</form>
</html>The connection is not made on the page but rather the username and password is authenticated by "j_security_check".
It's something to do with the my-db-plan.xml file I think, but I don't know if I'm to replace that file, change it or what..
It's setup for the Derby Database server rather than MySQL. I'm not sure how you'd change it. This login system we are using can be seen here: http://www-128.ibm.com/developerworks/opensource/library/os-ag-logreg2/

Java Client and J2EE

Hello
I am new in j2ee, and have developed to an application using ejb, struts and jsp's.
Now I need to make an application in swing and nonencounter the way to be able �
to make calls from the classes of swing.
Or if tecnologia exists some with which I can replace to Struts. Any aid I am thankful to them.

Hi
I'm not sure about the design you've followed for the web based application. The easiest way to solve the problem is to create a stateless session bean as front controller then let the swing client interact with the front controller. From the front controller , controll can be diverted to different business services as per your need.
HTH
Jobinesh

Anybody explain ABAP client and J2ee engine?

There are client 000,001,066.
But for J2ee Engine the client is in a different way.
What is the relationship of User data between ABAP client and J2ee Engine?
and tell me some inside about client copy? I have read some docs of help online, I 'd like more tech fact.

Hello Shen,
First ground rule: ABAP stack can support mutiple clients while JAVA stack supports only one client at one given time. In terms of user master data you can have 1:1 relationship between ABAP client and corresponding J2EE client provided there is connection between ABAP and UME which normally is there as it configured during installation. So if a user exists in client X in ABAP you can also view it in client X of J2EE.
Regarding client copy what type of client copy are you asking about?
Regards.
Ruchit.

Can we use applets as user interfaces with sockets, RMI and J2EE

Dear Sir or Madam,
Since I am a TA for software architecture class, some one ask me the following question: I think the answer is "No" based on the document on http://java.sun.com/sfaq/
How I answer the quesions? Looking forward your help!!!
1.You may have 2 applets and 2 html files. One applet with one html file may stay at a client PC and run on this PC, and the other applet with the other html file may stay at a server PC and run on this PC. In this case, all the applets are run locally.
2.Could applets works with sockets, RMI and J2EE?
3.Can we use applets as user interfaces with sockets, RMI and J2EE?
Thank you very much!
Best regards,
Jing

The scenario you paint doesn't quite make sense. The "server PC" wouldn't be running an applet, normally, since applets are by definition in a web browser page, and most likely involve user interaction, and "server processes" generally are done without user interaction.
The security rules around applets are that -- by default -- applets can connect with sockets ONLY to the server from whence the applet was loaded. RMI uses sockets (J2EE is too broad a spec) and hence RMI calls would also be limited to the server from whence the applet was loaded. Within that limitation, an applet could open all the sockets it wants, so long as they are all on the server from whence the applet was loaded.
If you want two applets on two different systems to communicate with each other, the simplest way is to have them rendevous through a server process on the server(s) from whence each applet was loaded. Maybe it's PC-a <-> server-a <-> server-b <-> PC-b ...? Or maybe PC-a and PC-b both are talking to the same server.
The limitation is rooted in the security subsystem. You can specify a policy file and override anything in the security subsystem. That does mean signing the applet and then cajoling the user into agreeing to grant greater levels of security than the default. In such a case you can open sockets more broadly and then PC-a could talk directly to PC-b without going through any servers.
- David

DB-Communication in ABAP and J2EE

Hello!
I would like to know the similarities and differences in ABAP and J2EE regarding their DB-Connectivity.
Which <b>DB-API</b> is used in <b>ABAP-</b> and <b>J2EE</b>?
What is about the management of the resources and processes, performance in both parts?
Thank You!
P. Henke

Hi, Peter!
For both languages - ABAP and Java - SAP offers a Dictionary (for definition of database objects) and Open SQL (for database independency), you may also in both languages embed static SQL scripts into you code (via SQL/J in Java).
For Java there' s the Persistence-Framework offering three support levels, Vendor-JDBC, Native and Open SQL the last one guaranteeing the maximum support. You may in Java access data - via JDBC and SQLJ - in a relational or - via EJB/CMP or JDO - in a object-relational way.
Performance-Features like Table-Buffering exist also in both stacks.
Please have a look at <a href="http://help.sap.com/saphelp_nw2004s/helpdata/de/61/fdbc3d16f39e33e10000000a11405a/frameset.htm">Developing Java Persistence</a> for more information regarding the Java-Part.
Regards,
Thomas

Connect swing and J2EE

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