Transfer: https://blog.csdn.net/lin000_0/article/details/91884684
A note similar to the rabbitmq support functions, through access to information, kafka communication mechanism must know that I do not write, you can directly see the figure below to understand the kafka profile:
In particular surgeon in the project as follows:
1. MAVEN increase in transmission and reception of the following dependencies PROJECT
2. The following configuration information received in the system configuration file PROJECT, mainly in order to connect consumer group and topic kafka server
3. increase in the reception prodject following components, primarily for receiving information, wherein KafkaListener to listen for the topic information zll
import org.springframework.kafka.annotation.KafkaListener;
import org.springframework.stereotype.Component;
@Component
public class ListenerMsg {
@KafkaListener(topics = "zll")
public void processMessage(String content) {
// ...
System.out.println("recieve msg:" + content);
}
}
4. Add the following in the project's transmission profile springboot
5. Add the following in the transmission component in the project
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.kafka.core.KafkaTemplate;
import org.springframework.kafka.support.SendResult;
import org.springframework.stereotype.Component;
import org.springframework.util.concurrent.ListenableFuture;
@Component
public class SendMsg {
private Log log = LogFactory.getLog(SendMsg.class);
private final KafkaTemplate kafkaTemplate;
@Value("${spring.kafka.topic}")
private String topic;
@Autowired
public SendMsg(KafkaTemplate kafkaTemplate) {
this.kafkaTemplate = kafkaTemplate;
for(int i=0;i<100;i++) {
this.SendMessge("hello "+i);
}
}
public void SendMessge(String msg) {
log.info("send send msg :"+msg);
this.kafkaTemplate.send("zll", msg);
}
}
7. The first project will be able to see both sides turned to receive a log in the development of project delivery
The sender logs:
The recipient logs:
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Author: lin000_0
Source: CSDN
Original: https: //blog.csdn.net/lin000_0/article/details/91884684
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