How to setup Apache kafka producer in spring boot Application

To create an Apache Kafka producer using Spring Boot, you can leverage the Spring Kafka project, which provides a set of abstractions and tools to simplify Kafka integration within a Spring Boot application. Here are the steps to create a Kafka producer in a Spring Boot application:

Add Dependencies:

Start by adding the necessary dependencies to your pom.xml (if you're using Maven) or build.gradle (if you're using Gradle): 

Configure Kafka Producer Properties:

Configure the Kafka producer properties in your application.properties or application.yml file. Here's an example configuration for connecting to a Kafka broker:

You can customize these properties based on your Kafka setup.

Create a Kafka Producer:

Create a Kafka producer component in your Spring Boot application. You can use the KafkaTemplate provided by Spring Kafka to send messages to Kafka topics. Here's an 

Use the Kafka Producer:

You can now use the KafkaProducerService to send messages to Kafka topics in your application. For example, you can inject the service into a controller or another service and call the sendMessage method

Run Your Spring Boot Application:

Start your Spring Boot application, and it should be able to produce messages to the Kafka topic specified in the sendMessage method.

Make sure you have a Kafka broker running and that the topic ("my-topic" in the example) exists. Adjust the configuration and code to match your Kafka setup and requirements.

By following these steps, you can create a Kafka producer in your Spring Boot application, making it easy to send messages to Kafka topics.