以下是一个简单的Spring Boot Kafka发送消息的完整例子:
首先,添加Spring Boot Kafka的依赖到你的pom.xml文件:
xml
<dependencies> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-kafka</artifactId> </dependency>
</dependencies>
在application.properties文件中配置Kafka的相关属性:
properties
spring.kafka.bootstrap-servers=localhost:9092
spring.kafka.consumer.group-id=test-group
spring.kafka.template.default-topic=test-topic
创建一个Kafka生产者类,并注入KafkaTemplate:
java
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.kafka.core.KafkaTemplate;
import org.springframework.stereotype.Service; @Service
public class KafkaProducerService { @Autowired private KafkaTemplate<String, String> kafkaTemplate; public void sendMessage(String message) { kafkaTemplate.send("test-topic", message); }
}
在你的Spring Boot应用程序中,你可以调用sendMessage方法发送消息:
java
@Autowired
private KafkaProducerService kafkaProducerService; public static void main(String[] args) { SpringApplication.run(MyApplication.class, args); KafkaProducerService kafkaProducerService = SpringApplicationContext.getBean(KafkaProducerService.class); kafkaProducerService.sendMessage("Hello, Kafka!");
}
以上是一个简单的Spring Boot Kafka发送消息的完整例子。你可以根据自己的需求进行修改和扩展。