This student information management system is an application based on MQTT protocol, which aims to realize the real-time publication and subscription of student information. Through MQTT protocol, the system can be easily extended to various devices and platforms to realize the rapid transmission and sharing of information.
The system consists of the following main components:
（1） MQTT Broker : Acts as a hub for information exchange, receiving and forwarding MQTT messages. （2） Back-end server : Processes student information data, provides RESTful apis to manage student information, and communicates with front-end clients via MQTT. （3） Front-end client : Use MQTT client library to communicate with MQTT Broker to achieve real-time display and update of student information.
（1）Student information Management ** : Add, delete, correct and check the basic information of students. （2）Real-time update ** : When the back-end server updates the student information, the front-end client can receive the update in real time. （3） Multi-Platform support ** : The system supports various MQTT clients, such as mobile applications, Web applications and desktop applications. （4）Scalability ** : Through the MQTT protocol, the system can be easily integrated with other MQTT devices or services.
（1）Install MQTT Broker ( EMQX) （2）Set up back-end server （3）Prepare the front-end client
（1）Configure the address and port of MQTT Broker. （2）Configure the connection information between the back-end server and MQTT Broker. （3）Configure front-end clients to connect to MQTT Broker.
（1）Start MQTT Broker. （2）Start the back-end server and ensure that the connection to MQTT Broker is normal. （3）Start the front-end client and connect to MQTT Broker to subscribe to the appropriate student information topic.
