<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
? ?xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
? ?<modelVersion>4.0.0</modelVersion>
? ?<parent>
? ? ? <groupId>org.springframework.boot</groupId>
? ? ? <artifactId>spring-boot-starter-parent</artifactId>
? ? ? <version>2.1.5.RELEASE</version>
? ? ? <relativePath/> <!-- lookup parent from repository -->
? ?</parent>
? ?<groupId>com.example</groupId>
? ?<artifactId>kafkaproducer</artifactId>
? ?<version>0.0.1-SNAPSHOT</version>
? ?<name>kafkaproducer</name>
? ?<description>Demo project for Spring Boot</description>
?
? ?<properties>
? ? ? <java.version>1.8</java.version>
? ?</properties>
?
? ?<dependencies>
? ? ? <dependency>
? ? ? ? ?<groupId>org.springframework.boot</groupId>
? ? ? ? ?<artifactId>spring-boot-starter-web</artifactId>
? ? ? </dependency>
?
? ? ? <dependency>
? ? ? ? ?<groupId>org.projectlombok</groupId>
? ? ? ? ?<artifactId>lombok</artifactId>
? ? ? ? ?<optional>true</optional>
? ? ? </dependency>
? ? ? <dependency>
? ? ? ? ?<groupId>org.springframework.boot</groupId>
? ? ? ? ?<artifactId>spring-boot-starter-test</artifactId>
? ? ? ? ?<scope>test</scope>
? ? ? </dependency>
? ? ? <dependency>
? ? ? ? ?<groupId>org.springframework.kafka</groupId>
? ? ? ? ?<artifactId>spring-kafka</artifactId>
? ? ? </dependency>
? ?</dependencies>
?
? ?<build>
? ? ? <plugins>
? ? ? ? ?<plugin>
? ? ? ? ? ? <groupId>org.springframework.boot</groupId>
? ? ? ? ? ? <artifactId>spring-boot-maven-plugin</artifactId>
? ? ? ? ?</plugin>
? ? ? </plugins>
? ?</build>
?
?
</project>

server.port=8089
spring.kafka.bootstrap-servers=ip:port
spring.kafka.producer.retries= 0
spring.kafka.producer.batch-size=16384
spring.kafka.producer.buffer-memory=33554432
spring.kafka.producer.key-serializer=org.apache.kafka.common.serialization.StringSerializer
spring.kafka.producer.value-serializer=org.apache.kafka.common.serialization.StringSerializer
spring.kafka.producer.linger.ms=1

package com.example.kafkaproducer;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.kafka.core.KafkaTemplate;
import org.springframework.stereotype.Component;
?
@Component
public class KafkaProducer {
? ? @Autowired
? ? KafkaTemplate kafkaTemplate;
? ? public void produce(){
? ? ? ? kafkaTemplate.send("test","hello word");
? ? ? ? System.out.println("發(fā)送消息");
? ? }
}

package com.example.kafkaproducer;??
import org.junit.Test;
import org.junit.runner.RunWith;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.boot.test.context.SpringBootTest;
import org.springframework.test.context.junit4.SpringRunner;?
?
@RunWith(SpringRunner.class)
@SpringBootTest
public class KafkaproducerApplicationTests {?
? ?@Autowired KafkaProducer kafkaProducer;?
? ?@Test
? ?public void contextLoads() {
? ? ? kafkaProducer.produce();
? ?}?
}

./bin/kafka-console-consumer.sh --bootstrap-server ip:9092 ?--topic test

listeners = PLAINTEXT://your.host.name:9092
advertised.listeners=PLAINTEXT://your.host.name:9092