Using session bean in JSP

Dear All
I write a BorrowList session bean and tested OK in console mode. I can't use it in the JSP, Dose any body tell me How can I create this bean in the JSP and when should I place the bean classes(Home, Bean and Remote).
I'm now using the BEA Weblogic 7.0
I'm appreicate if anybody can help me.
Best Regards
YU

U may be used the code similar to following :
Context context = new InitialContext.();
Object obj = (Object)context.lookup("Your JNDI name");
YourHome home = (YourHome)obj.portableRemoteObject.narrow(obj,
YourHome.class);
YourRemote remote = home.create();
System.out.println("your Business methods : "+remote.businessMethod1());
Put this code or whatever code used in ur console client in JSP and invoke the businessMethods using remote object.
I worked with BEAWeblogic 5.1, I think similar case may be there with BEA Weblogic7 also.
First, make a jar file with ome.Remote and Bean by using the deploymenttool, then compile with ejb compiler, the new Jar is the complete deployable file. Take this file and register in weblogic.properties file that is specify the path of the Jar file in the weblogic.properties file. and put the JSP in public-html directory and start the server. if the bean is deployed successfully, open JSP file in a browser then it will work.... if the bean is not deployed you won't get any result.
I can say, just placing the initialContext part of code on the JSP and running the JSP. I think, this may helps u...
Ramana

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Calling Session Beans in JSP ?

Hi Folks,
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abishek1983 wrote:
Hi Folks,
I am new to EJB3, I am doing simple applicatuions.
Can any one please tell me how to call session beans in jsp page.
Not. You can, technically, but you shouldn't. JSP should be for display purposes only, containing no Java code whatsoever.
for example my case is.. iam entering two diffrent data,Wrong. You cannot possibly have "2 data", the very concept is impossible.
You can have "2 data items" which is probably what you intended to say?
lets say user name and password in jsp page and this should go in data base thru JPA (entity beans)
Iam able to enter data from JPA in data base but if the same i have to fetch from JSP page.. iam not getting..!
Same way you insert them. Of course JPA entities are distinctly different from entity beans. The very concept of entity beans no longer exists in the context of JPA, it's solely used to mean EJB 2.1 or earlier entity beans.
I would really appretiate for your help i need it urgent...!
It's not urgent.

How to use session object in jsp

hi all
marry christmas
can anyone plz tell me how to use session obect in jsp
rachna
Message was edited by:
rachna_arora82

hi rachna,
JSP has a default(implicit) session object...... use the getSession(true) method on the session object and then going u can either get or set attributes depending on the requirement
That was in general and now with the issue u have got..... what u can do is that the u can create session for every user who logs in and when he/she tries to login again then u can probably check for the existing session object in the JSP and perform the logic as required..... any clarifications plzzzzzzz let me know
Thanks n Regards
Naveen M
Message was edited by:
Novice_inJAVA
Message was edited by:
Novice_inJAVA

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thank you, but i have a problem left. the case is like this.
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Is it possible to connect database using session bean

Dear all,
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Sure it is.
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String name;
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Can I connect with Database using Session Bean

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I am new to EJB. I have small doubt.
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Regards,
Murali.

Double post of http://forum.java.sun.com/thread.jspa?threadID=687239&tstart=0

Using Session Beans on a read only database

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I guess it is NotSupported. If not try Never.
--Jay
www.architectslobby.org
An exclusive community for Enterprise Architects

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Bye

It's the classname under the initial context or a.b.MyLocal in your case.
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Hi,
I am new to JSP and servlets
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I try to keep the hard coding part out of JSP.
I dont how to use both JSP and Servlets in combination.
Hence If needed I write some functions in JSP.
but it gives me error
+<%! public void abc()+
+{+
int intUserId = Integer.valueOf((Integer) session.getAttribute("MySession_UserID"));
+}+
+%>+
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Thanks
Venkat

The application architecture when you use Servlets and JSP in a standard MVC pattern is explained here (under the heading "Integrating Servlets and JSP Pages") and here ...

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env.put(Context.INITIAL_CONTEXT_FACTORY, "com.evermind.server.rmi.RMIInitialContextFactory");
env.put(Context.SECURITY_PRINCIPAL, "admin");
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I've also change the port in the config/rmi.xml file to 23893.
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Hi Gauarv,
Did you not see my reply in the following post?
Re: 502 service temporarily unavailable
If I'm not mistaken, this is exactly the same question as you asked
there.
By the way, is there some reason you are still using OC4J version
1.0.2.2? Is there something stopping you from upgrading to the later
versions (9.0.2 and 9.0.3)?
Good Luck,
Avi.

Issue with Webservice Creation using Session Beans.

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Thanks & Regards,
Kumar Madhavan.

I can't give you much of a walk through, as I have just started it myself, but I'm using a universal unique identifier to represent each client. Whenever a client posts data from a jsp or applet the uuid is also sent. I use POST to pass all my parameters. If the server hasen't received data in say 5 minutes from the client then it is assumed the client went offline. Its working for me so far.
COn

Using java beans in jsp using tomcat

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whew thats a lot of questions... All of this is pretty basic stuff. I would recommend you take a look at the web services tutorial: http://java.sun.com/j2ee/1.4/docs/tutorial/doc/
lets see.
Starting a package name with com is just a generic standard which is followed.
It is most correct when creating commercial packages to create packages like com.companyName.project
http://java.sun.com/docs/codeconv/html/CodeConventions.doc8.html
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Your directory structure should be something like this
webApplicationRootDirectory
- page1.html
- page2.html
- page3.jsp
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- WEB-INF
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Problem with Session Beans in JSP

Hi,
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          Paul Visan


          classcastexception are generally due to bad classpaths...
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          "Paul Visan" <[email protected]> wrote:
          >Hi,
          >
          >I'm testing Weblogic for our company's IT department and just ran into a
          >strange error. I wrote a simple JSP script to use a bean that works fine
          >except when trying to set the bean scope to session. I looked at the the log
          >file and the only exception recorded was a ClassCastException. Could anyone
          >please clarify this to me? Is this a current bug in Weblogic?
          >
          >Thank you for your attention,
          >Paul Visan
          >
          >

What role can ejb Session Beans play jsp session tracking

          I am also looking for a way to use JSP as ejb client with WLS5.1. i would appreciate any help.
          -Girish
          Prasad Peddada <[email protected]> wrote:
          >David,
          >     The beans which are refered in jsp specs are java beans and not EJB.
          >
          >Prasad
          >
          >David Levy wrote:
          >>
          >> Hello,
          >>
          >> We are using Jsp/Servlets which will hold session state and subsequently
          >> call ejb Session Beans for transaction/persistence coordination . We are
          >> not sure if we are using the correct techniques to control object memory.
          >>
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          >>
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          >>
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          >>
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          >> passivate/activate feature) we can control instances in memory as more web
          >> clients start the session from the jsp page. I.E. all web clients will have
          >> their own HttpSession instance which holds on to an ejb Session Bean object
          >> "MySession"( or a passivated representation of it)
          >>
          >> 1) Is this a sufficient approach or will there be other memory concerns?
          >> I.E. What about all the HttpSession objects out there? Do they need to be
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          >>
          >> 4) How does clustering relate to this topic?
          >>
          >> 5) Can we change the "jsp:useBean" directive so MySession is an ejb Session
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          >> thanks,
          >> dave

How can i design a EJB application using session Beans?

Hello,
I am designing a Find application using EJB. Here a user is prompted a search page, where he can enter the search criteria's. Then on click of submit, the query is formed at the server side depending on what criteria's were selected. Then a jdbc query is performed and the results are returned back to the user. Here no session is maintained for the users. Can anyone suggest me how to design this application using EJB. Should i use entity beans for this or session beans will suffice? Should the jdbc query be performed in the bean itself or should it be outside in a helper class? Please kindlu suggest me the design for this application...
Regards,
Subbu

Hi,
First of all, I'm unable to figure out why you need to use EJB for this scenario. You can write a helper class to frame and execute the query.
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Regards,
Raj.

Using session bean in JSP

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