ledwinson / spring-boot-amqp-multiple-vhosts

Sending messages to multiple virtual hosts using spring AMQP and SimpleRoutingConnectionFactory

Creating a spring boot project to send messages to multiple vhosts - rabbitmq

Steps

First of all you need to create the virtual hosts manually

curl -u guest:guest -X PUT http://localhost:15672/api/vhosts/firstvhost

curl -u guest:guest -X PUT http://localhost:15672/api/vhosts/secondvhost

Now follow these steps

• Create a Spring boot project
• Add spring rabbit dependencies
• Create a global configuration with exchange, queue names etc.
• Create a configuration for each virtual host connection.
• Add the above connectionFactories for eac h vhost to SimpleRoutingConnectionFactory
• try sending messages.

Sample project

• In this project a message is send to two different vhosts.
• Note that the que names, exchange names will be same for both vhosts.
• Once you run the app you can see following vhots and queues
• also you will be able to see messages in the queues.

vhost	exchanges	Queues	Routig key
firstvhost	mytest.exchange	mytest.routing.queue	mytest.routing.key
firstvhost	mytest.deadletter.exchange	mytest.deadletter.routing.queue	mytest.deadletter.routing.key
secondvhost	mytest.exchange	mytest.routing.queue	mytest.routing.key
secondvhost	mytest.deadletter.exchange	mytest.deadletter.routing.queue	mytest.deadletter.routing.key

The following guides illustrate how to use some features concretely:

• Messaging with RabbitMQ

Output after running project

Sending Message to secondvhost count = 1
2020-06-18 10:46:56.661  INFO 21971 --- [           main] o.s.a.r.c.CachingConnectionFactory       : Attempting to connect to: localhost:5672
2020-06-18 10:46:56.699  INFO 21971 --- [           main] o.s.a.r.c.CachingConnectionFactory       : Created new connection: secondConnectionFactory#100f9bbe:0/SimpleConnection@522ba524 [delegate=amqp://guest@127.0.0.1:5672/secondvhost, localPort= 57953]
Sending Message to firstvhost count = 2
2020-06-18 10:46:56.779  INFO 21971 --- [           main] o.s.a.r.c.CachingConnectionFactory       : Attempting to connect to: localhost:5672
2020-06-18 10:46:56.793  INFO 21971 --- [           main] o.s.a.r.c.CachingConnectionFactory       : Created new connection: firstConnectionFactory#367795c7:0/SimpleConnection@22bd2039 [delegate=amqp://guest@127.0.0.1:5672/firstvhost, localPort= 57954]
Sending Message to secondvhost count = 3
Sending Message to firstvhost count = 4
Sending Message to secondvhost count = 5
Sending Message to firstvhost count = 6
Sending Message to secondvhost count = 7
Sending Message to firstvhost count = 8
Sending Message to secondvhost count = 9
Sending Message to firstvhost count = 10