[BAEL-4847] Kafka SSL with Spring Boot client

spring-kafka/src/main/java/com/baeldung/kafka/ssl/KafkaProducer.java

@@ -0,0 +1,23 @@
+package com.baeldung.kafka.ssl;
+
+import lombok.AllArgsConstructor;
+import lombok.extern.slf4j.Slf4j;
+import org.springframework.kafka.core.KafkaTemplate;
+import org.springframework.stereotype.Component;
+
+@Slf4j
+@AllArgsConstructor
+@Component
+public class KafkaProducer {
+
+    private final KafkaTemplate<String, String> kafkaTemplate;
+
+    public void sendMessage(String message, String topic) {
+        log.info("Producing message: {}", message);
+        kafkaTemplate.send(topic, "key", message)
+          .addCallback(
+            result -> log.info("Message sent to topic: {}", message),
+            ex -> log.error("Failed to send message", ex)
+          );
+    }
+}