2:34 AM 1/6/2002 Dear All, Hey, I am a long lost SCJP. Lost the touch in somewhere June 2001. Now I am planning to be back in the stream, starting right from things like ejb, j2ee, statefull, stateless etc etc. I 'll be needing a lot of help here... Rest is fine. Thanks & Bye, Tualha Khan & BTW, congrats on giving my best java companion a facelift....
=================================== 3:04 PM 1/6/2002 Ok Here starts my queries.
I am studying from Ed Roman's Mastering EJB. I have just made my first enterprise bean ("Hello World"). I have the following structure of my bean: Package: HelloBean 3 Java source files: Hello.java -- The interface which extends javax.ejb.EJBObject -- The Remote Interface file HelloHome.java -- The interface which extends javax.ejb.EJBHome -- The Home Interface file HelloBean.java -- The Actual Bean class which implements javax.ejb.SessionBean interface -- The Bean class file
1 Deployment Descriptor: Deployment_Descriptor.txt (Copied and edited from Ed Roman's Source code)
Now, when I try to compile these files, I get the error stating that javax.ejb.* class files not found. package javax.ejb does not exist cannot resolve symbol
I compile these files using the following command: javac HelloBean\*.java
I was able to get j2ee up and running, I also have installed the Weblogic 6.1 server and it also seems to be running ok. My directory structure is as follows: Bea Home : c:\bea JDK 1.3.1 : c:\bea\jdk131 J2EE 1.3.1: c:\j2ee
Can anybody help me on compiling my .java files and further steps. Thanks & Bye, Tualha Khan
SCJP2, BEA WLS 6.0, DB2 UDB 7.1
Joined: Nov 22, 2000
Dear All, Hey, I was able to finally compile my .java files successfully (thanks a tonne to someone on this forum). Now the next question is about deployment. I have both J2ee and Weblogic up and running, what is a better choice?? Also, if I deploy my ejb in one environment, then can I with a little effort deploy it in the other environment? Do guide! Thanks & Bye, Tualha Khan
Joined: Nov 22, 2000
12:51 AM 1/7/2002 Dear All, Hey, I have successfully, deployed my first EJB. However there seems to be some problem in the client code. I am using the J2EE's deploytool to deploy the Application. Here is the summary from the Deploytool =========================== Deploy the application in C:\bea\jfiles\HelloWorldApp.ear on the server localhost saving the client jar as C:\bea\jfiles\HelloWorldAppClient.jar Sender object Deploy Tool : Deploy HelloWorldApp on localhost Remote message: Contacted Server.... Remote message: Application HelloWorldApp transferred. Remote message: HelloWorldApp has 1 ejbs, 0 web components to deploy. Remote message: Deploying Ejbs.... Remote message: Processing beans .... Remote message: Compiling wrapper code .... Remote message: Compiling RMI-IIOP code .... Remote message: Making client JARs .... Remote message: Making server JARs .... Remote message: Deployment of HelloWorldApp is complete.. Sender object Deploy Tool : client code at http://127.0.0.1:9191/HelloWorldAppClient.jar Remote message: Client code for the deployed application HelloWorldApp saved to C:\bea\jfiles\HelloWorldAppClient.jar. =========================== Here is the complete session after running the client:- =========================== C:\bea\jfiles>runclient -client HelloWorldApp.ear -name HelloWorldClient -textauth Initiating login ... Username = null Enter Username:guest Enter Password:guest123 Binding name:`java:comp/env/SimpleHelloWorld` Before Object Creation --->>> Caught an Exception: java.rmi.AccessException: CORBA NO_PERMISSION 0 No; nested exception is: org.omg.CORBA.NO_PERMISSION: minor code: 0 completed: No java.rmi.AccessException: CORBA NO_PERMISSION 0 No; nested exception is: org.omg.CORBA.NO_PERMISSION: minor code: 0 completed: No org.omg.CORBA.NO_PERMISSION: minor code: 0 completed: No at java.lang.Class.newInstance0(Native Method) at java.lang.Class.newInstance(Class.java:237) at com.sun.corba.ee.internal.iiop.messages.ReplyMessage_1_2.getSystemExc eption(ReplyMessage_1_2.java:93) at com.sun.corba.ee.internal.iiop.ClientResponseImpl.getSystemException( ClientResponseImpl.java:108) at com.sun.corba.ee.internal.POA.GenericPOAClientSC.invoke(GenericPOACli entSC.java:136) at org.omg.CORBA.portable.ObjectImpl._invoke(ObjectImpl.java:459) at _HelloWorldHome_Stub.create(Unknown Source) at HelloWorldClient.main(HelloWorldClient.java:18) at java.lang.reflect.Method.invoke(Native Method) at com.sun.enterprise.util.Utility.invokeApplicationMain(Utility.java:24 3) at com.sun.enterprise.appclient.Main.main(Main.java:159) Unbinding name:`java:comp/env/SimpleHelloWorld` C:\bea\jfiles> =========================== The StackTrace suggests some problem arises when I call the create() method on the Home interface of my app. Following are the four source files. ========================== HelloWorld.java (The Remote Interface) import javax.ejb.*; import java.rmi.*;