Session management and java Web Service

Hi ,
Can I have two web services one based on Session bean and other on Simple java class, packaged into single ear file? Does NetWeaver supports web service session management/tracking? How can I get an handle to HttpRequest in my Web Service?
Any help will be appreciated.
Thanks in advance
regards,
rajinder

Container Managed Authentication. Does everything you need.

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Session management for a web service

I am building a web service where the user will need to login and the application will need to maintain a persistent session. I am using Apache Axis2 for client/server communication via SOAP/XML. What would the simplest and most common way of doing this? I know I could implement session management from scratch similarly to how a browser does it, using cookies, but I'd rather use standard Java libraries for this. Am I correct in assuming that even though I'm using Axis2, the solution doesn't really have anything to do with Axis2 since Axis2 is basically just a way for the client/server to send messages to each other?
I've read a lot of information online about this, but there's so much information that it's hard to know where to start. Basically I'm just looking for someone to point me in the right direction on what classes to use and so on. I just need a simple username password authentication and session management system for a web service.

Container Managed Authentication. Does everything you need.

Java Web Services wrapper and connection management.

We are currently evaluating the use of the SES Java web-services for a custom front end. I've downloaded the sample code and have read through the documentation but I'm confused on a few points.
We will be OSSO protecting the app, so the flow I think I need to use is (on the OracleSearchService object):
*setSoapURL
*proxyLogin
*setSearchUser
*doOracleSearch
(do whatever with results)
From what I can tell each one of these does a separate call into the actual web service. Does this keep a connection open between these calls and if so how do we need to manage our connections in this case. Is there an explicit close method we should be calling? I see that we can get an OracleSoapHTTPConnection from the undocumented getConnection method on OracleSearchService but I'm unsure if we are supposed to interact with it directly.
In a related vein how should we managing our OracleSearchService objects? Should we save an instance for each user in our httpSession, or just create a new instance on each call?
Any insights appreciated,
Jason

No Problem at all
Nomally the Web Service is big different between Web application. or you can build your Web service structure like web application structure. It depends on the web server:
If the Web Server of hosting company has WEB Service framework, you just need know how to deploy your Web service to Web Service framework and How to deploy to Web Server. In this case, you need deploy it two time, one is for Web Server framework and one is for Web Service framework
If the Web Server of hosting company doesn't has WEB Service framework, you need build your own Web Service framework into a web application, then you just need know how to deploy your web application with Web service into Web Server framework

Java Web Services Developer Pack 1.5 and SOAP?

Hi all,
I'm trying to figure out what, if any, support does Java Web Services Developer Pack 1.5 have for parsing and dealing with SOAP messages. I couldn't find any documentation or info in the tutorial about it, but founds some packages through JavaDoc that seem to deal with SOAP. Does anyone know what the deal is? Do you use this toolkit for SOAP, maybe even WS-security?
Thanks for any pointers!
Olia

You can use JWSDP 1.3 but the minimum requirement form that toolkit is JDK 1.4. So you need to download the JDK 1.4 from http:/java.sun.com and install it first and after that you can install that JWSDP 1.3. Good Luck.

Java Web Services Developer Pack 1.3 and JDK 1.3.1

Does anyone know if I can use Java Web Services Developer Pack 1.3 with JDK 1.3.1? The installation instructions only mention JDK 1.4.
Thanks,
Jerry

You can use JWSDP 1.3 but the minimum requirement form that toolkit is JDK 1.4. So you need to download the JDK 1.4 from http:/java.sun.com and install it first and after that you can install that JWSDP 1.3. Good Luck.

How to deploy and debug java web service in eclipes or using any other soft

Hai,
can any one tell me how to deploy and debug java web service in eclipes or using any other software.
i have used tomcat web server and jdk1.4.0 to develop web service.
we have used web service to interact with MS outlook .
bye
sudhakar.m

Hi Sudhakar,
If you are used to working with ant then you can very well use eclipse to deploy your web service.
You would usually have the ant script in the source root working directory. From eclipse if you select the build file from the navigator view and right click you will see a run ant option in the pop up menu.
Select that option and you would be able to see each targets with a checkbox select option. So define each target maybe one for wsdl2java conversion, one for compilation and one for deploying your web services. You can either make all of them run by having depends option on or you can run them individually as it takes your fancy.
I am not sure about debugging a web service yet.
Hope this helps
Aviroop
The truth is out there? Does anyone know the URL?

WebService with Session manager and Connection pooling

I've created many a Oracle users in our RDBMS. It comes to this, that every
user in our Company has its own oracle account.
We are developing now a Web application (Internal information system) for my
Company.
This Web application will have GUI created in perl and middle tier will be
Oracle WebServices.
This WebServices will be connected to the DB for every oracle user and it also
must have a session management.
And this is a Action plan:
1. the user will log to the Web GUI with his oracle login name and a password
2. this oracle user name and the password will be sent from this Web app to the
WebService
3. this WebService will create a connection over a JDBC (not over DataSources)
and will create also a session (maybe like a servlet)
4. in this session the instance of the created connection for this user will be
saved and the WebService will return to the Web app the session id
5. and this session id will be then used for further calling of WebServices
Then comes another user, signs up over the Web app with his oracle account and
this whole process repeats.
Finally every logged user will have its own session id with his own connection
instance to DB.
Maybe it's possible, that it will work only with Servlet (with HttpSession) and
WebService created from this Servlet.

Take a look at the Statefull Java Web Services. It may be able to handle your use case.
http://download-west.oracle.com/docs/cd/B14099_04/web.1012/b14027/javaservices.htm#i1027664
You should be able to cache the database connection, directly in your service implementation class.
Hope this helps,
Eric

Java Web Service Deployed on App server does not run

hi,
I created a java web service and deployed it on my Application server. When i open the enterprise manager i find my webservice there. I click on test web service and it gives me two options one with a 4443 port and other with a 7777 port. It picks up a 0.0.0.0 hostname though i deplyoed it on to a different machine.
I choose to use the 7777 port and test the web service whrn i click invoke it give me the error
Internal Server Error
The server encountered an internal error or misconfiguration and was unable to complete your request.
Please contact the server administrator, [email protected] and inform them of the time the error occurred, and anything you might have done that may have caused the error.
More information about this error may be available in the server error log.
and when using the 4443 port it gives me the error as
"SSL Error: unable to find valid certification path to requested target"
please suggest how i can test a simple java webservice.
Thanks
Sravanti

I think the problem is to add the custom dll files while deploying the application. Could any one please suggest how i can add custom dll file for deployment?
Thanks
Sravanti

Generation Error - when trying to publish a Java web service

Hi All,
I keep getting the following Generation Error -- java.util.NoSuchElementException_ when I'm trying to create a Java Web Service using the jdeveloper wizard.
I have 2 entities and 2 stateless session beans acting as their facades. One entity has a One-One(FK) relationship with the other entity. I test out the entities and session beans using the test client and the OC4J embedded container and everything seems to work. When I try to generate a Java WebService from one of the entities I keep getting the "Generation Error". Could someone please provide me with some insight into why I'm facing this problem, because it seemed fine when I published J2EE web services previously and now this happens and I cant seem to publish web services anymore. Everytime I keep getting the same GenerationError. Thanks in advance.

Without going into any technical discussion about the code, my first question is what JDK version was used to create this which was imported into the form? Understand that Forms 10 runs on JDK 1.4.2, so if you used any newer JDK version, likely there will be problems.

Calling normal java web service from bpel

hi,
i want to call a normal java web service (which has been deployed in an application server) and not a bpel process from my .bpel file.
i see that while creating a partner link , i have to specify the wsdl file location.
there are two options.
from local bpel server and
from local file system.
since the web service is not a bpel prcess, it can not be deployed in the bpel process manager and i have to choose the wsdl file location from local file system.
now there are some major differences in the two type of wsdl file, i.e., that of a java web service and a bpel process.
let me give u all a concrete example.
let i have a hello world web service which takes a name as input , concatenates the name with "hello" and outputs.
i created a partner link to this web service.
after creating the partner link, a local copy of the wsdl file is added into my bpel project which only contains definition import and partnerlink statements.
but i can not progress any further.
can any one help me out of this problem.
also i will be helpful if any one can suggest a tutorial where bpel is used to orchestarate between normal java web services deployed in some other application server and not mere bpel processes.
thanks & regards.
sudipto

Hi Sudipto,
Just to add to the options. There are three options.
1 and 2 as mentioned by you.
3 you can give the hosted wsdl location directly in the text box. (i.e. somthing like http://ws.strikeiron.com/CensusData?WSDL)
This in turn will create a local wsdl which has partnerLink info and an import of the original wsdl.
once you have this select the appropreate Partner Link Type and Partner Role.
HTH
Dhaval

The Best Java Web Services Technology for Developing Web Services

Hi,
I am new to Web services world.
I read the java web services page . there are more than 6 technologies.
JAX-WS,
JAX-RPC,
JAXB,
SAAJ,
JAXP,
WSIT,
XWS-Security
I went through several documents on web services.
I could not get a clear idea of which technolgy to use.
Which Java web service technology will be the best to develop web services independant of language, platform.
or is there any 3rd party implemetations available ? for rapid development of web services.
Could anyone help me !.
Thanks in advance.
Message was edited by:
Siva.Prakash

Which Java web service technology will be the best
to develop web services independant of language,
platform.
Java by nature is a cross-platform language, so if your focus is on the need for portability, the choisce of WS should not be a problem. However, each WS is best suited for paricular uses.
SAAJ, a low-level level API, offers much simplicity, but is not the first choice for programmers, as SOAP (Simple Object Access Protocol)messages need to be constructed piece by piece, making it a quite arduous code to program.
If you are not familiar with XML, your best bet would be to use JAX-RPC (Java API for XML-Remote Procedure Calls), as it hides the underlying detail from the programmer, in terms of SOAP and XML. The shortcoming with RPC-based WS is that it is "restricted to the local programming experience". Another failing is that assumes there is a network path- a reliability concern.
If your program will be contacting other services during downtimes, unlike JAX-RPC, JAXM is quite useful. However, your listing did not mention it, so I wont cover it.
JAXR is a client-side only API that acts as an interface between registries (not referring to JAXP)
I am not famiiar with JAXB, JAXP, WSIT or XWS-Security..
or is there any 3rd party implemetations available ?It depends on what platform you are used to. Assuming you are familiarized with the J2EE platform (now changed to Java EE SDK), the NetBeans IDE (either 5.5, 5.5.1 or the latest editiion) is quite useful. I am using 5.5.1, but have found that it is quite buggy, especially when adding WS operations, a core requirement of a WS. if you will be using to devlop a service for an immediate need, you may find the learning curve to be a bit high, in terms of getting to grips with how to use it. (Download link:
http://www.netbeans.info/downloads/index.php)
The IBM Autonomic IDE (or AIDE), based on the WSDM standard, includes 3 sub-tools, icluding the IBM Manageability Endpoint Builder which, according to their website, allows individuals to build endpoints to allow manageability interface exposure; Manageable Resource Browser and the IBM Manageability Endpoint Simulator. However, I'm not familiar with this IDE. (Download link: http://www.alphaworks.ibm.com/tech/aide/download)
The .NET Framework uses the Visual Studio IDE. For an unbiased comparison of J2EE and the .NET Framework in terms of WS, see http://www.webservicesarchitect.com/content/articles/hanson01.asp.
Apache Axis2, Geronimo and JiBX allows fast development of WS, or so the creators profess.
The PHP environment- you could try NuSPHERE PHPed. According to one website, with it you can develop a web service in under an hour.
I hope this was useful to you.
[Based partly on Topley, K. (2003) [i]Java TM Web Services in a Nutshell: A desktop Quick Reference. 1st ed. California: O�Reilly & Associates, Inc]

Java Web Service Book Recommendation

Hello,
my company is converting our old HP database system to Oracle database/server. I am looking for some books that can help me get familiar with Java Web Services. I want to use the latest Java.
If anyone owns/knows a good book to recommend is very appreciated. Also, I would like to get a book regarding security in Java Web Service.
Thank you.

Three words: Amazon.com user reviews. They've never let me down yet.
Note that the online documentation is absolutely not bad at all and the internet is riddled with examples; I managed to figure it all out without the help of a book.
JAX-WS: https://metro.java.net/discover/
JAX-RS: https://jersey.java.net/nonav/documentation/latest/index.html
Of course these are only the reference implementations. Many people choose to use Apache Axis 2 in stead of Metro for example, which has its own (rich) documentation, user base and forums.

JDeveloper 10g 10.1.3 Web Service Question: java web service calls another

I am looking for what I think should be a simple example/tutorial but so far no luck. I am using JDeveloper 10g 10.1.3 and the Oracle Application Server.
I want to do this:
- create a simple Java web service
- deploy it
- create another simple Java web service, that makes a call to a method on the first service
- deploy it
client->WSfront->WSback
I want to keep this as basic as possible.
Although I have found examples of how to create a web service proxy, there are no examples that I have found that show how to use that proxy in another web service:
I did what I thought were the right things; generated a proxy for the first web service, and used that proxy in the second web service's source Java class. However when I deployed and tested many classes were missing: all the classes the proxy class depends on.
I actually managed to get something like this working but had to manually create the .ear and .war files for WSfront, explode the archives, and manually add the missing classes to its WEB-INF/classes.
I am comparing this to things like Weblogic Workshop in which doing this exercise is a snap.
Is there a simple graphical way to do this in JDeveloper?

Hello again,
I am quite surprised I got no responses to my query below.
Can anyone explain how I might do this?
Please feel free to respond to [email protected]
I am looking for what I think should be a simple
example/tutorial but so far no luck. I am using
JDeveloper 10g 10.1.3 and the Oracle Application
Server.
want to do this:
create a simple Java web service
deploy it
create another simple Java web service, that makes a
call to a method on the first service
deploy it
client->WSfront->WSback
want to keep this as basic as possible.
lthough I have found examples of how to create a web
service proxy, there are no examples that I have
found that show how to use that proxy in another web
service:
I did what I thought were the right things; generated
a proxy for the first web service, and used that
proxy in the second web service's source Java class.
However when I deployed and tested many classes were
missing: all the classes the proxy class depends
on.
I actually managed to get something like this working
but had to manually create the .ear and .war files
for WSfront, explode the archives, and manually add
the missing classes to its WEB-INF/classes.

Java Web Services Security with 10.1.2.1

I have developed a Java Web Service with J Developer 10.1.2.1 which was deployed onto Oracle 10.1.2.1 application server. Now I have to implement Security for this Web Service (similar to ws-security etc.,), how I can achieve Security with 10.1.2.1?
J Developer 10.1.3.1 seems to have the feature to implement Web Service Security, but a Java Web Service developed using J Developer 10 .1.3.1 with security enabled cannot be deployed onto Oracle 10.1.2.1 application server.
Please help as how I can implement Java Web Service Security with 10.1.2.1?
Email: [email protected]
Thanks for the help in advance.

You can use Oracle Web Services Manager to virtualize the end point and still implement WS-Security.
Thanks
Ram

Seeking advice with concept / design of a Java Web Services Application

Hi all,
After a week of searching the internet I'm not sure how which projects, services, etc. I should use to develop my application. Please could someone offer some advice?
Application outline (Java application running on Linux):
1. Wait for an instruction from a Windows WCF application. Instruction contains a list of domain names and one or two other parameters.
2. Perform queries upon those domain names (find if they are registered, etc. - takes 10-20 mins to do complete list)
3. Send back results to WCF application.
Solution 1 (first idea):
1. Create SOAP web service using Java Web Services / Apache to listen for requests. Executes a Java Client Application upon request.
2. Java Client Application performs the queries...
3. Java Client Application sends results to the Windows web service.
Solution 1 Problems:
a) Using 2 applications, they won't be able to share the same memory.
b) The whole process will be slow (having to pass the domain names from the service to application and execute the application each time) - A quick response is critical.
c) Would like is for the whole process to be done under one application, sharing the same memory.
Solution 2:
1. Create a Java Daemon from scratch listening for an incoming SOAP message (no web service like Apache/Tomcat involved).
2. Query the domain names in a new thread inside the Java Daemon
3. Send the results back via SOAP.
Solution 2 Problems:
Cannot find examples of how to create a SOAP service from scratch. E.g. creating a WSDL file based on my application; converting application methods to SOAP-callable methods easily (without writing a framework).
With all the Java tools and projects out there - Java EE, Glassfish Project - there must be a very easy way to achieve this seemingly simple task. Please can someone offer some advice?
Many thanks for reading this.
Richard
Edited by: jazzinbrazil on Mar 30, 2009 4:58 AM

You just need an app server like Tomcat.If I'm not wrong, Tomcat is a Servlet container.
Servlets aren't deactivated when they don't receive
any request for some time?
How can I deploy an application to Tomcat in order to
keep it always active?I don't know what you mean. Tomcat is an application that is always running. In what way are the Servlets deactivated?
Apache Axis: http://ws.apache.org/axis/
Yes I'm collecting some info about this... let's see
it!
Finally, to be more clearer... I don't want to start
a new application at each invocation (something like
getting the request, instantiating the necessary
classes and executing them) but to call an already
running app at each invocation (so, getting request
and invoking, in a manner that I don't know, the
running application).The container manages this. If you have data that must remain loaded, you can associate it with the class (use a static modifier.) This will complicate threading, however.
I can use Axis to get the request, but it also grants
me that my app will always be active?I think you are just using the wrong terminology here. What I think you are asking is whether the resources will be loded into memory at all times. If you want to ensure this behavior, you need to associate the data with a class. I'm not 100% positive, but I don't think Tomcat will unload classes in normal circumstances.

Session management and java Web Service

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