dbuchko / rmq-test

rmq-test

Simple RabbitMQ Java publisher and consumer. The Publisher creates a fanout exchange called logs, and publishes a message to it every 0.5 seconds. The Consumer creates a queue specified by the command line parameter, and binds it to the logs exchange. It prints out messages as they are received.

Requirements

To successfully use the examples you will need a RabbitMQ node running locally.

You'll need to download the following JAR files from Maven Central, into the project lib directory:

• RabbitMQ Java Client
• SLF4J API
• SLF4J Simple

For example, with wget:

wget -P lib https://repo1.maven.org/maven2/com/rabbitmq/amqp-client/5.14.2/amqp-client-5.14.2.jar
wget -P lib https://repo1.maven.org/maven2/org/slf4j/slf4j-api/1.7.36/slf4j-api-1.7.36.jar
wget -P lib https://repo1.maven.org/maven2/org/slf4j/slf4j-simple/1.7.36/slf4j-simple-1.7.36.jar

You can set an environment variable for the jar files on the classpath, eg.

MacOS:

export CP=.:./target:lib/amqp-client-5.14.2.jar:lib/slf4j-api-1.7.36.jar:lib/slf4j-simple-1.7.36.jar

To compile you only need the RabbitMQ Java client jar on the classpath.

javac -cp $CP -d target Consume.java
javac -cp $CP -d target Publish.java

To run them you'll need all the dependencies.

The Publish app takes one argument, an identifier (for running multiple instances of the app). Eg:

java -cp $CP Publish p0

The Consume app takes a single argument, the queue name. Eg:

java -cp $CP Consume q0