Porting J2EE Applications to SAP WAS

Helloo,
Can anyone help me.
If u have informations about porting of J2EE Applications into SAP WAS , then plz help me.
I need certain J2EE Applications which are developed under J2EE 1.2 or lower than 1.3 (EAR files for conversion using convert tool).
Please help me with suficient help including links for downloading EAR files(J2EE 1.2 ) with help for porting.
I want to port one J2EE Application which is not developed under SAP WAS Netweaver (means not even under 6.2), completely out of SAP WAS environment.
How can i port that Application into SAP WAS?
What are the prerequisites for this?(I Have Netweaver Studio).
If any documents with helps available then help me with that links also..
With Regards
Kishor

Hi Kishor,
see guide to deploy pure-j2ee app to WAS 640?
Hope it helps
Detlev
PS: Please be more responsive! If you ask something and people answer, it is not more than kind to reply if it was helpful or not, and then, where the problem stayed. This is friendly against the ones who help as well as against other users running into the same issue. And: One can very efficiently say "thanks" on SDN by rewarding points for helpful answers.
This holds at least for the following threads opened by yours:
Netweaver Studio and Portal Development Application Creation (elp)
Netweaver Studio(J2EE) and Portal Applications (Help Me)
Webdynpro Flights Project using JCO Connection
Exceptions in Flights Webdynpro using JCO Connection

Similar Messages

Porting open source application to SAP WAS

Hi,
I'm porting jZForum ( http://www.jzforum.org ) to integrate it with SAP WAS and SAP Dictionary instead of internally used
HypersonicSQL database. I mainly changed obtaining connection to the database directly through JDBC:
jdbc:hsqldb:hsql://localhost:1476
into connection obtained through JNDI with Spring Framework (more precisely through org.springframework.jndi.JndiObjectFactoryBean class) :
jdbc/MY_DATABASE
with connection pooling parameters:
initial connections: 1
maximum connections: 50
maximum time to wait for connection: 120
expiration: yes
connection lifetime: 600
cleanup thread: 300
Unfortunately ported jzForum seems to "hang on". I see in Log Viewer (Visual Administrator) log that it is quering database with a lot of SELECTs,
I assume that it is indexer which on startup is indexing all objects from the forum to speed up searching this objects in the future.
After about 2-3 minutes hanging on, application shows generated page, but every subsequent request to
the server cause hanging on in the same way.
I assume that it might be the case that application is obtaining through JNDI connection to the database, but is
not releasing it. I have examined entire jzForum code, and closed all unnecesary Connection in final Java statements,
but it unfortunately didn't help.
Original jzForum (not ported to SAP Dictionary) works on SAP WAS just perfectly.
Have someone else experience with porting open source application from some database (eg. HSQL) to SAP Dictionary ?
Maybe it is a problem with Spring Framework implementation ? Maybe it is a problem with wrongly configured connection pool ?
I have no idea at the moment. Every help will be appreciated.
Kind regards,
Marcin Zduniak

Hi Marcin,
from what you are describing, the port to JNDI obtained connections and your "research" in visual admin uncovered some issues with the original code ( not closing open connection ).
My attempt to explain your difficulties:
1. Working with hsqldb in direct mode, where hsqldb connection are obtained by driver.getConnection(), works well, becuse GC "reclaims" unused but not closed
connections. Things seems to work out this way.
2. Getting connections through JNDI involves a datasource with its associated db pool. Not closed connections are then "trapped" in the pool as long as is specified by the "connection lifetime" DS parameter. Things get worse by the time, becuse the application leaks constantly connections.
Remedy for the problems described in 2:
- middle term: fix the application: here spring might be useful, consider using its JDBC support classes!
- short term: set the connection lifetime to a small value to let pool reclaim the unclosed connections
Hope it helps a bit,
Gregor

SSO to J2EE application from SAP Portal

Hi
I am trying to do SSO from SAP Portal to a J2EE engine which runs on SAP Web AS.
Here are my queries
1. When I deploy a J2EE application on Web AS , I dont get any login screen. How can I make sure that if a user wants to access this J2EE application he should get a login screen and provide his login credentials first, only then would he be able to access the J2EE application.
2.When I am done with Part 1. If a user tries to access this J2EE application from the Portal (asuming the user Id's in Portal and J2EE application are same and both are in the same domain) , I should not get any login screen and should be able to view the J2EE application.
3.I want to use SAP Logon tickets generated by the Portal to enable SSO.
I have done all the necessary configurations in the J2EE server.
1. Imported the Portal's verify.der certificate.
2. Adjusted the login modules stack for the application accordingly.
Can anyone please help me out with this or throw some light.
Please help.
Thanks in advance,
Vivek
PS - Points will be definitely rewarded

Hi Vivek,
Let me give you the solution for both questions differently.
Ques 1. When I deploy a J2EE application on Web AS , I dont get any login screen. How can I make sure that if a user wants to access this J2EE application he should get a login screen and provide his login credentials first, only then would he be able to access the J2EE application.
Ans: For doing this in the code of your J2EE application you have to write a if statement which will check if the user ID is coming from the backend or not. If yes then you display that logon page else you just pass that username which is coming from backend and displ;ay the page accordingly.
Ques 2.When I am done with Part 1. If a user tries to access this J2EE application from the Portal (asuming the user Id's in Portal and J2EE application are same and both are in the same domain) , I should not get any login screen and should be able to view the J2EE application.
Ans: Yes, this is what I am explaining you. Even I had also made same kind of J2EE application in which if the user is coming from the backend then he/she will look the J2EE screen else if the username is not coming then he will se the Login screen. Exactly same as what are looking for.
3.I want to use SAP Logon tickets generated by the Portal to enable SSO.
Ans: I have used User Mapping instead of SAP Logon ticket. Well that is also the option for SSO but personally I think User Mapping is easy and better way for implementing SSO.
I dont know whether this will help you or not. Please let me know. I can definately help if you want to implement SSO using User Maping.
Regards
Pravesh
PS: Please dont forget to reward points.

Running Java/J2EE application On SAP Netweaver

Hi All,
I am a java/J2ee professional who is relatively new to SAP Netweaver studio. I have developed an application which consists of Core java,JSP and Servlets. Can anybody suggest me as to how to deploy this application on SAP Netweaver and how to test the same.I have already created a war file for the application.Quick suggestions will be highly appreciated as its very urgent for my project.
Regards
Ani

Hi
See this help
http://help.sap.com/saphelp_nw2004s/helpdata/en/a8/fcbc3d16f39e33e10000000a11405a/frameset.htm
http://help.sap.com/saphelp_nw2004s/helpdata/en/b7/9877fe13221244838a16e3683ad344/frameset.htm
Kind Regards
Mukesh

Porting j2ee application from Weblogic to Oracle 10g AS

What are the common guidelines/consideration when we port a J2EE application on Oracle Application server 10g. from WebLogic 8.1. If you have some inputs on pin points/guidelines/Architecture decisions that we might need to consider when we port a J2EE application on different J2EE application server
I got the link for app server migration but it is broken :
http://www.oracle.com/consulting/technology/appserver_migration_ds.pdf
Our application uses the following J2EE components
1. JDBC 2.0
2. JNDI
3. DAO
4. EJB
5. JMS
6. JAAS
7. JAVA Mails.
8. Servlets, JSP’s
I can think following point that needs to take care while porting
1. Its deployment configuration vis-a-vis the apps on top
2. The APIs it exposes (actually the information it allows the apps to pass in to the framework
3. The data it encapsulates (in order to be app-server agnostic; does it need to be now exposed to apps?)
Some J2EE specific areas
1. JNDI usage and exposure to apps 2. Properties files/XML files
2. Location specification 3. Resource bundle location specification
4. EJB deployment descriptors
5. Class/jar references between wars and ears
6. Jar sharing model across ears
7. Class loader differences across app-servers
8. JMS settings (queues, topics, factories, durability etc)
9. UI tags 10. Startup services
11. Managed services (JMX)
12. Security context passing
13. Clustered configurations if any and how they port across app-servers
Thanks
Santosh Maskar

This document is very old.
Take a look at the recent migration guide in the Oracle AS 10.1.3.1 documentation
http://download-uk.oracle.com/docs/cd/B31017_01/migrate.1013/b31269/toc.htm

Problem in starting my j2ee application on SAP

Hi,
I have done a fresh installation of SAP NetWeaver, i deployed my application's .ear file through DeployTool.
Once deployed successfully, it asks to start application, and it shows started successfully.
Now when i access my application with its URL, it says, application is currently stopped, and status of application in 'Administration' is 'STARTING', it does not change.
Any guesses, what the problem could be, also I have just installed NetWeaver, do i need to install SQLDB as well.
Earlier it was working fine, but after reinstallation nothing seems working
Please suggest....
Thanks in advance

Hi,
Thanks for reply.
I'm not able to open this link, it asks for user name and password ..??
I'm using sql server for my application, i have not intalled SQLSB yet, I think installing SAP NeTWeaver installs MaxDB...
thanks

Problems in porting J2EE applications to EP

Hi Experts,
I'm looking for problems that are faced when one migrates J2EE applicaitons on to EP. If possible please share the solutions as well.
Thank you and Best Regards,
Chintamani

Hi Kishor,
see guide to deploy pure-j2ee app to WAS 640?
Hope it helps
Detlev
PS: Please be more responsive! If you ask something and people answer, it is not more than kind to reply if it was helpful or not, and then, where the problem stayed. This is friendly against the ones who help as well as against other users running into the same issue. And: One can very efficiently say "thanks" on SDN by rewarding points for helpful answers.
This holds at least for the following threads opened by yours:
Netweaver Studio and Portal Development Application Creation (elp)
Netweaver Studio(J2EE) and Portal Applications (Help Me)
Webdynpro Flights Project using JCO Connection
Exceptions in Flights Webdynpro using JCO Connection

Proxy authentication required when connecting to internet from SAP WAS

Hi,
I have deployed a J2EE application in SAP WAS 7.0 and this aplication wants to access an application from internet.
I have set the proxy server details in Visual Admin -> Web Service Container -> setting.
The server is installed locally in my PC.
I am able to run the same java application in my command prompt wit the same proxy details and it is able to access the 3rd party application , but when I am trying to access through web application through SAP WAS I am getting 407 Proxy authentication required.
Thanks in advance.
Regards,
Hari

Hi,
it seems like your Proxy requires authentication (e.g. Basic authentication)
I am able to run the same java application in my command prompt wit the same proxy details and it is able to access the 3rd party application
Are you providing any credentials here in order to access the internet via Proxy?
What kind of Proxy are you using
Cheers

Error in Accessign mySAP ERP from SAP WAS J2ee Engine

Hi all,
I have installed some applications on SAP WAS Java System SP17. When i am trying to access the mySAP ERP system from that Application, it is giving the following error
>(103) RFC_ERROR_LOGON_FAILURE: System received an expired SSO ticket
My ERP and WAS are on different Windows Domains. I have SSO and done the trust configurations and imported the Certificate on to mySAP ERP. I also increased the Lifetime of the SAP Logon ticket, but that also didnt work. In one of the documents i found that both the systems need to be in the same OS time.
1. How can i bring my ERP server and WAS on to same OS time?
(net time/set does not work since these machines are in different domains)
Or is there some other solution to this problem,Please help me
regards
deepu

Hi Deepu,
as long as the timezones are maintained correctly, the time DISPLAYED may be different, again it is GMT, which is required to be in sync. Looking at IST, do you mean Indian, Israelien or Irelend stadnard time ? (see <a href="http://www.timegenie.com/timezones.php">a list of timezones</a> for details). In any case, 4 hours seams odd to me, should be either
India: 4:30 hour
Ireland: 1 hour
Israel: 1 hour
can you please make sure, your systems are synced to GMT somehow, for instance using timeservices ?
From your name, I would guess you might sit in India, in which case at least one of your system is misconfigured (timewise) if they are 4 hours away.
Countries today 4 hours away from CET would either be
<a href="http://www.worldtimezone.com/utc/utc+0500.html">russia, pakistan and some more</a> or <a href="http://www.worldtimezone.com/utc/utc-0300.html">some countries in south america</a> (this changes over time
regards,
Patrick

Difference of J2EE Applications

what is the difference between J2EE applications developed using WAS and other Application server.
Is the Netweaver Web Application Server mainly used for developing J2EE Applications

Hi,
There are many Web Application server that are available in the market. Each of them try to focus on Specific Customers.
Lets take simple example SAP's NetWeaver. SAP has got its own Application Server called the WAS6.0, 6.2 and now 6.4. These type of servers are suitable to run any SAP developed applications. If we use them to run any other middleware products we might need extra plugins.
J2EE applications can be developed using WebSphere Studio, WebLogic, Jbuilder, JBoss, Netweaver Studio and many more available studios. They are all based on Eclipse- which is an Open Source IDE. Every Big firm used the common IDE and added it's own components to support thier own applications.
So J2EE applications that you develop will be the same But you have to add extra plugins in the form of Jar files.

Timeout Service in SAP WAS 6.40

Howdy,
I am currently in the process of migrating our enterprise application from Jboss 3.2.6 to SAP WAS 6.40.
In Jboss we have a standard Timer Service and our application class registers as a Listener to the Timer Service listening for notifications at regular intervals and I am trying to implement a similar mechanism in SAP WAS.
Came across a few options
1.To implement the JMX standard Timer mbean as a service and deploy it into SAP WAS so that it is deployed and automatically starteed and then to write a notification listener to this service - Now came across a post that suggested that this is not possible in 6.40 since deployment of custom services is not supported - not sure if it is still possible though
2. Second option is to use the Timeout service in SAP WAS itself but having huge problem in implemnting the listener to this service. First of all i had a problem locating the jar that contained the com.sap.engine.service.timer package, after having doen that i now face the hurdle of finding the file containing the com.sap.engine.frame.container.event package.
Documentation certainly ain't very useful.
Any help from anyone who has attempted to do a similar thing is much appreciated.
Thanks
Dushy

Fantastic, thanks Nathan. Will try that, i m trying to deploy my mbean from a servlet at the moment as that seems to be a preferaable option among the group here.
Having problems getting the servlet load at startup. My understanding is that the servlet should execute the code in the init() method as sooon as i deploy the application to SAP WAS.
My Web.xml looks as follows:
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE web-app PUBLIC "-//Sun Microsystems, Inc.//DTD Web Application 2.3//EN" "http://java.sun.com/dtd/web-app_2_3.dtd">
<web-app>
 <display-name>Rent-a-Car</display-name>
 <description>WEB APP description</description>
 <servlet>
 <servlet-name>quickCarRentalView.jsp</servlet-name>
 <jsp-file>/quickCarRentalView.jsp</jsp-file>
 </servlet>
 <servlet>
 <servlet-name>QuickReservationServlet</servlet-name>
 <servlet-class>com.sap.examples.quickcarrental.servlet.QuickReservationServlet</servlet-class>
 </servlet>
 <servlet>
 <servlet-name>Test</servlet-name>
 <servlet-class>com.sap.examples.quickcarrental.servlet.Test</servlet-class>
 <load-on-startup>0</load-on-startup>
 </servlet>
 <servlet-mapping>
 <servlet-name>quickCarRentalView.jsp</servlet-name>
 <url-pattern>/view</url-pattern>
 </servlet-mapping>
 <servlet-mapping>
 <servlet-name>QuickReservationServlet</servlet-name>
 <url-pattern>/</url-pattern>
 </servlet-mapping>
 <servlet-mapping>
 <servlet-name>Test</servlet-name>
 <url-pattern>/Test</url-pattern>
 </servlet-mapping>
 <ejb-local-ref>
 <ejb-ref-name>ejb/QuickOrderProcessorBean</ejb-ref-name>
 <ejb-ref-type>Session</ejb-ref-type>
 <local-home>com.yambay.quickcarrental.QuickOrderProcessorLocalHome</local-home>
 <local>com.yambay.quickcarrental.QuickOrderProcessorLocal</local>
 <ejb-link>QuickCarRentalEjb.jar#QuickOrderProcessorBean</ejb-link>
 </ejb-local-ref>
</web-app>
Any suggestions??
Dushy

First J2EE Application using IDE in sdn provided example

Hi guys!
REQ! can any one suggest!
First J2EE Application using SAP Netweaver Developer Studio provided by SDN is deployed succesfully to J2EE Engine but when I run the application JSP file in URL I am getting the Error as follows:
500 Internal Server Error SAP J2EE Engine/6.40
Application error occurred during the request processiong.
Details: com.sap.engine.services.servlets_jsp.server.exceptions.WebIOException:
Error compiling [/CalculatorFdx300/CalculatorFdx300.jsp] in application [CalculatorFdx300]. The ID of this error is
Exception id: [001125B854E9005F0000039E000013CC000414755D534457].
with regards
ganesh

Hi Ganesh,
It seems. It can be any one of the following
1) Check the JDK Path
2) Check the JNDI name
3) Check the package structure
4) Check the client file name and other files naming convention
Hope it will resolve your problem
cheers
Jawahar Govindaraj

R/3 4.6C to SAP WAS J2EE engine

Hi,
I am new ABAP Programming and more into J2EE. I would like to know different approachs available to communicate or send data from ABAP to J2EE engine/Web Applicaiton asynchronously.
I am looking for SAP WAS 6.40
Thanks in Advance

Hi,
J2EE Applications communicate with the R/3 System by means of making a Remote Function Call (RFC) to access the required BAPI. By passing input parameters, output is obtained from the BAPI. While making RFC calls, the R/3 system credentials like username, pwd, client needs to be given. JCO (Java Connector) establishes the link between the application and R/3 system and is configured in the Enterprise Portal.
Hope this helps.
Best regards,
Srinivasan T
Helpful answer=>points

Have anyone done porting COBOL application to ABAP and J2EE?

Hi all,
(Hi Stefan Klensch: this is my next question:-))
I am a newby in the SAP world and just walking around a few days.
The problem I am facing is porting a large COBOL application to ABAP and mapping the generic business functions of that COBOL application according to the business process involved to adequate functions of the CRM- and HRM suites.
AND
The required customization of strategic business domain knowledge must be implemented in the J2EE domain e.g. for portability reasons. So at the end of the day I will have a SAP J2EE application and the above mentioned SAP ABAP solutions.
Yes, I want to use UML for the analysis and design (e.g. clas/component diagrams) because UML diagrams give me an better architectural (and maintainable) view and design of the system.
I am looking for the rare developer(s) who did such a kind of challenging job before. I hope they can give me hints and information the way they handled and solved such a problem. E.g. roadmap, methods, tooling, etc.
Many thanks in advance.
Thiel Chang

etresoft,
I downloaded the sample code for EvenBetterAuthorizationSample project and I changed the userid for the Developer id application as suggested by Apple below and built it, but still when I run the app and click on the "Read License" button or other buttons I get the error NSCocoaErrorDomain 4099 connectionInvalid
Before you build you need to adjust some Info.plist values to match your Developer ID. Specifically, search the entire sample code directory hierarchy for all instances of "SKMME9E2Y8" and replace it with the User ID value from your "Developer ID Application" certificate.
As far as I can tell, the sample app is properly code signed with our certificate along with the helper tool
Is there something else I need to change to get this sample app working so I can understand this better

Sap was java 6.40 giving error while deploying webdynpro applications

I have 7.0.11 Dev studio and when I am trying to publish dynpro application to preveiew WAS 6.40 , It is giving following error
.However when published to production version , it is working fine . Any settings to be enabled in preview version of WAS to enable dynpro hosting ?
Web Dynpro product information:
Product: null, Vendor: SAP AG, Version: null, Build ID: 6.3004.00.0000.20040209174308.0000, Build Date: Fri Jan 04 14:25:09 GMT+05:30 2008
Error stacktrace:
java.lang.NoClassDefFoundError: com/sap/tc/webdynpro/progmodel/gci/IGCIComponentDelegate
Loader Info -
ClassLoader name: [local/FirstWebDynProj]
Parent loader name: [Frame ClassLoader]
References:
 common:service:http;service:servlet_jsp
 service:ejb
 common:service:iiop;service:naming;service:p4;service:ts
 service:jmsconnector
 library:jsse
 library:servlet
 common:library:IAIKSecurity;library:activation;library:mail;library:tcsecssl
 library:ejb20
 library:j2eeca
 library:jms
 library:opensql
 library:webservices_lib
 interface:resourcecontext_api
 interface:webservices
 sap.com/tcwddispwda
 sap.com/tcwdcorecomp
 service:webdynpro
 service:sld
 library:com.sap.aii.util.xml
 library:com.sap.aii.proxy.framework
 library:tc~cmi
 library:com.sap.aii.util.misc
 library:com.sap.aii.util.rb
 library:tcgraphicsigs
 library:com.sap.util.monitor.jarm
 library:tcddicddicruntime
 common:library:com.sap.security.api.sda;library:com.sap.security.core.sda;library:security.class;service:com.sap.security.core.ume.service;service:connector;service:dbpool;service:keystore;service:security;service:userstore
 library:com.sap.mw.jco
 library:com.sap.lcr.api.cimclient
 library:sapxmltoolkit
 library:tcddicddicservices
Resources:
 D:\usr\sap\J2E\JC00\j2ee\cluster\server0\apps\local\FirstWebDynProj\webdynpro\public\lib\app.jar
Loading model: {parent,references,local}
The error occurred while trying to load "firstcomppkg.wdp.InternalFirstComp".
 at com.sap.engine.frame.core.load.ReferencedLoader.loadClass(ReferencedLoader.java:326)
 at com.sap.tc.webdynpro.progmodel.generation.DelegatingComponent.<init>(DelegatingComponent.java:42)
 at com.sap.tc.webdynpro.clientserver.cal.ClientComponent.doInit(ClientComponent.java:748)
 at com.sap.tc.webdynpro.clientserver.cal.ClientComponent.init(ClientComponent.java:333)
 at com.sap.tc.webdynpro.clientserver.cal.ClientApplication.init(ClientApplication.java:341)
 at com.sap.tc.webdynpro.clientserver.task.Task.createApplication(Task.java:181)
 at com.sap.tc.webdynpro.clientserver.task.WebDynproMainTask.execute(WebDynproMainTask.java:494)
 at com.sap.tc.webdynpro.clientserver.cal.AbstractClient.executeTasks(AbstractClient.java:49)
 at com.sap.tc.webdynpro.clientserver.cal.ClientManager.doProcessing(ClientManager.java:239)
 at com.sap.tc.webdynpro.serverimpl.defaultimpl.DispatcherServlet.doWebDynproProcessing(DispatcherServlet.java:130)
 at com.sap.tc.webdynpro.serverimpl.defaultimpl.DispatcherServlet.doContent(DispatcherServlet.java:92)
 at com.sap.tc.webdynpro.serverimpl.defaultimpl.DispatcherServlet.doGet(DispatcherServlet.java:35)
 at javax.servlet.http.HttpServlet.service(HttpServlet.java:740)
 at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)
 at com.sap.engine.services.servlets_jsp.server.HttpHandlerImpl.runServlet(HttpHandlerImpl.java:373)
 at com.sap.engine.services.servlets_jsp.server.HttpHandlerImpl.handleRequest(HttpHandlerImpl.java:250)
 at com.sap.engine.services.httpserver.server.RequestAnalizer.startServlet(RequestAnalizer.java:319)
 at com.sap.engine.services.httpserver.server.RequestAnalizer.startServlet(RequestAnalizer.java:297)
 at com.sap.engine.services.httpserver.server.RequestAnalizer.invokeWebContainer(RequestAnalizer.java:696)
 at com.sap.engine.services.httpserver.server.RequestAnalizer.handle(RequestAnalizer.java:221)
 at com.sap.engine.services.httpserver.server.Client.handle(Client.java:92)
 at com.sap.engine.services.httpserver.server.Processor.request(Processor.java:146)
 at com.sap.engine.core.service630.context.cluster.session.ApplicationSessionMessageListener.process(ApplicationSessionMessageListener.java:37)
 at com.sap.engine.core.cluster.impl6.session.UnorderedChannel$MessageRunner.run(UnorderedChannel.java:71)
 at com.sap.engine.core.thread.impl3.ActionObject.run(ActionObject.java:37)
 at java.security.AccessController.doPrivileged(Native Method)
 at com.sap.engine.core.thread.impl3.SingleThread.execute(SingleThread.java:94)
 at com.sap.engine.core.thread.impl3.SingleThread.run(SingleThread.java:140)

Seems your Web AS preview is rather old - 6.40 SP4. While NWDS is 7.0 SP11. For WD development IDE and server must be at the same version and SP level.
HTH!
\-- Vladimir

Porting J2EE Applications to SAP WAS

Similar Messages

Maybe you are looking for