文章目录
- 1、生产者服务搭建
- 1.1、引入spring–kafka依赖
- 1.2、application.yml配置—-v1版
- 1.3、使用Java代码创建主题分区副本
- 1.4、发送消息
1、生产者服务搭建
1.1、引入spring-kafka依赖
<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>3.0.5</version>
<relativePath/>
</parent>
<groupId>com.atguigu.kafka</groupId>
<artifactId>kafka-producer</artifactId>
<version>0.0.1-SNAPSHOT</version>
<name>kafka-producer</name>
<description>kafka-producer</description>
<properties>
<java.version>17</java.version>
</properties>
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter</artifactId>
</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>
1.2、application.yml配置—-v1版
server:
port: 8110
# v1
spring:
kafka:
bootstrap-servers: 192.168.74.148:9095,192.168.74.148:9096,192.168.74.148:9097
producer: # producer 生产者
retries: 0 # 重试次数 0表示不重试
acks: -1 # 应答级别:多少个分区副本备份完成时向生产者发送ack确认(可选0、1、-1/all)
batch-size: 16384 # 批次大小 单位byte
buffer-memory: 33554432 # 生产者缓冲区大小 单位byte
key-serializer: org.apache.kafka.common.serialization.StringSerializer # key的序列化器
value-serializer: org.apache.kafka.common.serialization.StringSerializer # value的序列化器
1.3、使用Java代码创建主题分区副本
package com.atguigu.kafka.config;
import org.apache.kafka.clients.admin.NewTopic;
import org.springframework.context.annotation.Bean;
import org.springframework.kafka.config.TopicBuilder;
import org.springframework.stereotype.Component;
@Component
public class KafkaTopicConfig {
@Bean
public NewTopic myTopic1() {
return TopicBuilder.name("my_topic1")
.partitions(3)
.replicas(3)
.build();
}
}
1.4、发送消息
package com.atguigu.kafka.producer;
import jakarta.annotation.Resource;
import org.junit.jupiter.api.Test;
import org.springframework.boot.test.context.SpringBootTest;
import org.springframework.kafka.core.KafkaTemplate;
@SpringBootTest
class KafkaProducerApplicationTests {
@Resource
KafkaTemplate kafkaTemplate;
@Test
void contextLoads() {
kafkaTemplate.send("my_topic1", "spring-kafka");
}
}
[
[
{
"partition": 0,
"offset": 0,
"msg": "spring-kafka",
"timespan": 1717483674110,
"date": "2024-06-04 06:47:54"
}
]
]