来自:https://dzone.com/refcardz/getting-started-with-mqtt SECTION 1 Why MQTT? The Internet of Things (IoT) has recently gained massive traction. IoT challenges enterprises, small companies, and developers with new problems to solve. While HTTP is the d…
In this section we’ll look at two useful features of ActiveMQ: subscribing to multiple destinations using wildcards, and publishing to multiple destinations using composite destinations. ActiveMQ uses a special notation to denote a wildcard subscript…