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Learn to implement the new JMS Client introduced in Spring Boot 4 through this hands-on tutorial that demonstrates building a complete order messaging system using Apache ActiveMQ Artemis and Docker Compose. Discover how the fluent API pattern, similar to RestClient and JdbcClient from Spring Boot 3.2, replaces JMSTemplate with clean, readable code that enhances the developer experience. Set up a Spring Boot 4 project with JMS and Artemis using Docker Compose, then master the new JMS Client's fluent API for sending messages while creating a custom message converter with Jackson 3's JSONMapper. Implement JMS Listeners to receive and process messages, configure Quality of Service settings including priority, TTL, and delivery delay, and access the Artemis web console to inspect queues. Build the Order model and messaging service, create REST controller endpoints, and test implementations using IntelliJ's HTTP client. Explore why JMS remains relevant in enterprise applications despite newer messaging technologies, and gain practical experience with priority messaging and QoS settings. The tutorial includes comprehensive coverage of Docker Compose setup, custom Jackson 3 message conversion, REST endpoint creation, and best practices for JMS implementation in modern Spring Boot applications.
