How to Produce Simple Kafka Message Using Spring Boot 3.5.0 and Java 21 on Windows | Step-by-Step

"In this step-by-step tutorial, I show you how to produce a simple Kafka message using Spring Boot 3.5.0 and Java 21 on Windows. Learn how to set up Kafka, configure Spring Boot, and send messages to Kafka topics. Perfect for Java developers and Kafka beginners!

✅ Creating a Spring Boot project with version 3.5.0-SNAPSHOT.
✅ Writing a REST endpoint to produce messages.

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⚡ Technologies Covered:
✔ Kafka
✔ Spring Boot 3.5.0-SNAPSHOT
✔ Java 21
✔ Windows

Don’t miss out on this powerful yet easy guide to mastering Kafka messaging with the latest technologies!

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1. Install Prerequisites
* Java 11 or later: KafBat is a Java application and requires Java Runtime Environment (JRE) to run. Verify if Java is installed by running:
java -version (command)
* Kafka Server: Ensure you have access to a running Kafka Server.
For Running up Kafka Server you need to follow following steps:
a. Install JDK: Ensure the Java Development Kit (JDK) is installed and set the JAVA_HOME environment variable.
b . Download Kafka: Obtain the latest Kafka version from the Apache Kafka downloads page and extract it to a directory, such as C:\kafka.
c. Start Zookeeper: Open a Command Prompt, navigate to the Kafka directory, and start Zookeeper with the command:
d. Start Kafka Server: In another Command Prompt, navigate to the Kafka directory and start the Kafka server:

Step 2 : Clone the github project which is given below and import into intelliJ and run it.

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