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PostHeaderIcon Tutorial: Tomcat / OpenJMS integration

Install and Config

  • Let’s assume you would like to run OpenJMS and Tomcat on the same server, eg myLocalServer
  • Download OpenJMS from this page.
  • Unzip the archive, extract it to C:\exe\openjms-0.7.7-beta-1
  • Set an environment variable:set OPENJMS_HOME=C:\exe\openjms-0.7.7-beta-1
  • Take the archive $OPENJMS_HOME/lib/openjms-tunnel-0.7.7-beta-1.war
    • copy it to: $CATALINA_HOME/webapps
    • rename it as: openjms-tunnel.war
  • Edit OPENJMS_HOME/config/openjms.xml:
    • Before the ending tag</connectors>, add the block:
      <Connector scheme="http">
            <ConnectionFactories>
              <ConnectionFactory name="HTTPConnectionFactory"/>
            </ConnectionFactories>
       </Connector>
    • After the ending tag </connectors>, add the block:
      <HttpConfiguration port="3030" bindAll="true"
             webServerHost="myLocalServer" webServerPort="8080"
             servlet="/openjms-tunnel/tunnel"/>


Run applications

  • Launch $OPENJMS_HOME/bin/startup.bat. The following output is expected:
    OpenJMS 0.7.7-beta-1
    The OpenJMS Group. (C) 1999-2007. All rights reserved.
    http://openjms.sourceforge.net
    15:15:27.531 INFO  [Main Thread] - Server accepting connections on tcp://myLocalServer:3035/
    15:15:27.547 INFO  [Main Thread] - JNDI service accepting connections on tcp://myLocalServer:3035/
    15:15:27.547 INFO  [Main Thread] - Admin service accepting connections on tcp://myLocalServer:3035/
    15:15:27.609 INFO  [Main Thread] - Server accepting connections on rmi://myLocalServer:1099/
    15:15:27.609 INFO  [Main Thread] - JNDI service accepting connections on rmi://myLocalServer:1099/
    15:15:27.625 INFO  [Main Thread] - Admin service accepting connections on rmi://myLocalServer:1099/
    15:15:27.625 INFO  [Main Thread] - Server accepting connections on http-server://myLocalServer:3030/
    15:15:27.625 INFO  [Main Thread] - JNDI service accepting connections on http-server://myLocalServer:3030/
    15:15:27.625 INFO  [Main Thread] - Admin service accepting connections on http-server://myLocalServer:3030/
  • Launch Tomcat. A webapp with path /openjms-tunnel and display name “OpenJMS HTTP tunnel” should appear.


Checks

    • Open Console² or an MS-DOS prompt
    • Go to $OPENJMS/examples/basic
    • Run: build. This will compile all the examples.


Check that OpenJMS is OK:

    • Edit jndi.properties,
      • Comment the property
        java.naming.provider.url
      • Add the line:
        java.naming.provider.url=tcp://myLocalServer:3035
    • Run:
      run Listener queue1
    • Open a second tab
    • Run:
      run Sender queue1 5

      • Expected output in the second tab:
        C:\exe\openjms-0.7.7-beta-1\examples\basic>run Sender queue1 5
        Using OPENJMS_HOME: ..\..
        Using JAVA_HOME:    C:\exe\beaweblo922\jdk150_10
        Using CLASSPATH:    .\;..\..\lib\openjms-0.7.7-beta-1.jar
        Sent: Message 1
        Sent: Message 2
        Sent: Message 3
        Sent: Message 4
        Sent: Message 5
      • Expected output in the first tab:
        C:\exe\openjms-0.7.7-beta-1\examples\basic>run Listener queue1
        Using OPENJMS_HOME: C:\exe\openjms-0.7.7-beta-1
        Using JAVA_HOME:    C:\exe\beaweblo922\jdk150_10
        Using CLASSPATH:    .\;C:\exe\openjms-0.7.7-beta-1\lib\openjms-0.7.7-beta-1.jar
        Waiting for messages...
        Press [return] to quit
        Received: Message 1
        Received: Message 2
        Received: Message 3
        Received: Message 4
        Received: Message 5


Check that OpenJMS/Tomcat link is OK:


Manual Check

    • Stop the Listener instance launched sooner
    • Edit jndi.properties,
      • Comment the line
        java.naming.provider.url=tcp://myLocalServer:3035
      • Add the line:
        java.naming.provider.url=http://myLocalServer:8080

        (this is Tomcat manager URL)

    • Run: run Listener queue1
    • Open a second tab
    • Run:
      run Sender queue1 5
    • The expected output are the same as above.


GUI Check

  • Stop the Listener instance launched sooner
  • Ensure jndi.properties contains the line:
    java.naming.provider.url=http://myLocalServer:8080
  • Run: $OPENJMS_HOME/bin/admin.bat

    • A Swing application should start.
    • Go to:
      Actions > Connections > Online
    • The queue queue1 should be followed by a ‘0’.
    • Run: run Sender queue1 50

      • Action > Refresh
      • The queue queue1 should be followed by a ’50’.
    • Run: run Listener queue1

      • Action > Refresh
      • The queue queue1 should be followed by a ‘0’.

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