Things to be checked before starting the application:

• Update the application.properties file with your MySQL username and password
• Create a new database schema with name springboot_rabbitmq_example
• If you wish to used a different database / schema, you will need to override values in application.properties
• Ensure that you have a rabbitmq server running and correctly configured in application.properties (default is localhost:5671) )

Application flow:

• Once the application is started, a browser at http://localhost:8080
• Create a new Product record
• Notice that the value for "Is Message Sent" in the http://localhost:8080/product/show/1 is currently set to false.
• There is a link at the bottom of this record "Send messages through queue listener"
• When this link is clicked, a message is put in a rabbitmq queue, the browser is redirected back to the product show page without getting blocked.
• This message is read and processed by MessageSender class.
• On the browser, keep refreshing the page: http://localhost:8080/product/show/1
• You will notice that the value for "Are Messages Sent" changes to true in a second or so.