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EJB Deploy


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Compile the Source Code

Now we have all of our files in the correct directories. The next step is to compile the source code into class files.

A D V E R T I S E M E N T
The following commands should be executed from the top of the directory structure created earlier (c:\ejb_example on my computer). Also, you'll need to ensure your javac command is working and that you have the proper development kits installed. (These commands are for Microsoft Windows. If running this example on another operating system, just edit these commands as required.) The LIBDIR variable should point to the directory that contains jboss-j2ee.jar.

(The line breaks are for formatting only. Execute these on one line.)


javac -classpath %LIBDIR%\jboss-j2ee.jar -d
target\client src\client\com\examples\*.java
src\shared\com\examples\*.java

javac -classpath %LIBDIR%\jboss-j2ee.jar -d
target\server src\server\com\examples\*.java
src\shared\com\examples\*.java

 





Create the Jar Files

Remember that EJBs execute in an EJB container on the server. In our case this will be the jboss application server. We need to package the server code into a jar file named helloserver.jar. This jar will be copied into the proper jboss deployment directory in the next step. Likewise, we need to package the client code, the code that will call and use the EJB, into a jar file named helloclient.jar. The client code can be run from any computer on the network, but in our case we'll just run jboss in one DOS window and the client in another DOS window on the same computer.

Execute the following command from your c:\ejb_example\target\client directory. (Don't forget the trailing "." at the end.)

jar cvf ..\..\assemble\helloclient.jar .

Execute the next command from your c:\ejb_example\target\server directory. (Again, there is a trailing ".".)

jar cvf ..\..\assemble\helloserver.jar .

After executing these jar commands you should have a helloclient.jar and a helloserver.jar in the assemble directory.




Deploy to jboss

  1. Create a JBOSS_HOME environment variable and set it to the jboss installation directory (for instance, c:\jboss-3.2.5). 
  2. Create a LIBDIR environment variable and set it to the client directory under JBOSS_HOME (for instance, %JBOSS_HOME%\client). 
  3. Place the helloserver.jar in the %JBOSS_HOME%\server\default\deploy directory. 
  4. From the command prompt: 

%JBOSS_HOME%\bin\run.bat



When jboss starts up, you should see logging statements indicating that the Hello EJB has been deployed. Here is what I have in my command window:


08:56:07,656 INFO [EjbModule] Deploying Hello
08:56:08,424 INFO [EJBDeployer] Deployed: file:c:\jboss-4.0.1sp1\server\default\deploy\helloserver.jar



Run The Client

To run the client, open a new DOS window (you should have jboss already running in a separate window).
  1. Create a JBOSS_HOME environment variable and set it to the jboss installation directory (for instance, c:\jboss-3.2.5)
  2. Create a LIBDIR environment variable and set it to the client directory under JBOSS_HOME (for instance, %JBOSS_HOME%\client)
  3. Change directory to the assemble directory that contains helloclient.jar
  4. From the command prompt (all as one line)

java -classpath helloclient.jar;%LIBDIR%\jnp-client.jar;%LIBDIR%\jboss-common-client.jar;
%LIBDIR%\jboss-j2ee.jar;%LIBDIR%\jboss-net-client.jar;%LIBDIR%\jbossall-client.jar;;%LIBDIR%\jnet.jar
com.examples.HelloClient

In your client DOS window, you should see "Hello! World" print out. In the server DOS window, you should see "Someone called sayHello()" print out. The client just executed our sayHello business method from within the jboss application server.


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