Chapter 3. Getting started
Chapter 3. Getting started This chapter guides you through the steps to set up your environment and run a simple messaging program. 3.1. Prerequisites To build the example, Maven must be configured to use the Red Hat repository or a local repository . You must install the examples . You must have a message broker listening for connections on localhost . It must have anonymous access enabled. For more information, see Starting the broker . You must have a queue named queue . For more information, see Creating a queue . 3.2. Running Hello World The Hello World example calls createConnection() for each character of the string "Hello World", transferring one at a time. Because AMQ JMS Pool is in use, each call reuses the same underlying JMS Connection object. Procedure Use Maven to build the examples by running the following command in the <source-dir> /pooled-jms-examples directory. USD mvn clean package dependency:copy-dependencies -DincludeScope=runtime -DskipTests The addition of dependency:copy-dependencies results in the dependencies being copied into the target/dependency directory. Use the java command to run the example. On Linux or UNIX: USD java -cp "target/classes:target/dependency/*" org.messaginghub.jms.example.HelloWorld On Windows: > java -cp "target\classes;target\dependency\*" org.messaginghub.jms.example.HelloWorld Running it on Linux results in the following output: USD java -cp "target/classes/:target/dependency/*" org.messaginghub.jms.example.HelloWorld 2018-05-17 11:04:23,393 [main ] - INFO JmsPoolConnectionFactory - Provided ConnectionFactory is JMS 2.0+ capable. 2018-05-17 11:04:23,715 [localhost:5672]] - INFO SaslMechanismFinder - Best match for SASL auth was: SASL-ANONYMOUS 2018-05-17 11:04:23,739 [localhost:5672]] - INFO JmsConnection - Connection ID:104dfd29-d18d-4bf5-aab9-a53660f58633:1 connected to remote Broker: amqp://localhost:5672 Hello World The source code for the example is in the <source-dir> /pooled-jms-examples/src/main/java directory. The JNDI and logging configuration is in the <source-dir> /pooled-jms-examples/src/main/resources directory.
mvn clean package dependency:copy-dependencies -DincludeScope=runtime -DskipTests java -cp "target/classes:target/dependency/*" org.messaginghub.jms.example.HelloWorld > java -cp "target\classes;target\dependency\*" org.messaginghub.jms.example.HelloWorld java -cp "target/classes/:target/dependency/*" org.messaginghub.jms.example.HelloWorld 2018-05-17 11:04:23,393 [main ] - INFO JmsPoolConnectionFactory - Provided ConnectionFactory is JMS 2.0+ capable. 2018-05-17 11:04:23,715 [localhost:5672]] - INFO SaslMechanismFinder - Best match for SASL auth was: SASL-ANONYMOUS 2018-05-17 11:04:23,739 [localhost:5672]] - INFO JmsConnection - Connection ID:104dfd29-d18d-4bf5-aab9-a53660f58633:1 connected to remote Broker: amqp://localhost:5672 Hello World