八、SpringBoot集成Kafka-Toy模板网

这篇具有很好参考价值的文章主要介绍了八、SpringBoot集成Kafka。希望对大家有所帮助。如果存在错误或未考虑完全的地方，请大家不吝赐教，您也可以点击"举报违法"按钮提交疑问。

一、添加依赖

<dependencies>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-web</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework.kafka</groupId>
            <artifactId>spring-kafka</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-test</artifactId>
            <scope>test</scope>
        </dependency>
    </dependencies>

二、SpringBoot 生产者

1、修改 SpringBoot 核心配置文件 application.propeties, 添加生产者相关信息

spring.application.name=atguigu_springboot_kafka
#指定kafka集群地址
spring.kafka.bootstrap-servers=192.168.239.11:9092,192.168.239.12:9092

#key value序列化
spring.kafka.producer.key-serializer=org.apache.kafka.common.serialization.StringSerializer
spring.kafka.producer.value-serializer=org.apache.kafka.common.serialization.StringSerializer

2、创建 controller 从浏览器接收数据, 并写入指定的 topic

@RestController
public class ProducerController {

    @Autowired
    KafkaTemplate<String, String> kafka;

    @RequestMapping("/atguigu")
    public String data(String msg){
        // 通过kafka发送出去
        kafka.send("first", msg);

        return "ok";
    }
}

三、SpringBoot 消费者

1、修改 SpringBoot 核心配置文件 application.propeti

#指定kafka集群地址
spring.kafka.bootstrap-servers=192.168.239.11:9092,192.168.239.12:9092

#key value序列化
spring.kafka.producer.key-serializer=org.apache.kafka.common.serialization.StringSerializer
spring.kafka.producer.value-serializer=org.apache.kafka.common.serialization.StringSerializer

# key value 反序列化器
spring.kafka.consumer.key-deserializer=org.apache.kafka.common.serialization.StringDeserializer
spring.kafka.consumer.value-deserializer=org.apache.kafka.common.serialization.StringDeserializer

#配置消费者组
spring.kafka.consumer.group-id=atguigu

2、创建类消费 Kafka 中指定 topic 的数据

@Configuration
public class KafkaConsumer {

    @KafkaListener(topics = "first")
    public void consumerTopic(String msg){
        System.out.println("收到消息：" + msg);
    }
}

一些配置总结文章来源地址https://www.toymoban.com/news/detail-686908.html

###########【Kafka集群】###########
spring.kafka.bootstrap-servers=55.10.24.135:9091,55.10.24.135:9092,55.10.24.135:9093,55.10.24.135:9094,55.10.24.135:9095,55.10.24.135:9096,55.10.24.135:9097,55.10.24.135:9098,55.10.24.135:9099,55.10.24.135:9100,55.10.24.135:9101,55.10.24.135:9102


###########【初始化生产者配置】###########
# 重试次数
spring.kafka.producer.retries=0
# 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、all/-1)
spring.kafka.producer.acks=-1
# 批量大小
spring.kafka.producer.batch-size=16384
# 提交延时
spring.kafka.producer.properties.linger.ms=0
# 当生产端积累的消息达到batch-size或接收到消息linger.ms后,生产者就会将消息提交给kafka
# linger.ms为0表示每接收到一条消息就提交给kafka,这时候batch-size其实就没用了

# 生产端缓冲区大小
spring.kafka.producer.buffer-memory = 33554432
# Kafka提供的序列化和反序列化类
spring.kafka.producer.key-serializer=org.apache.kafka.common.serialization.StringSerializer
spring.kafka.producer.value-serializer=org.apache.kafka.common.serialization.StringSerializer
# 自定义分区器
# spring.kafka.producer.properties.partitioner.class=com.felix.kafka.producer.CustomizePartitioner

# 授权配置
spring.kafka.producer.properties.sasl.mechanism=PLAIN
spring.kafka.producer.properties.security.protocol=SASL_PLAINTEXT
# 填入认证的账号密码
spring.kafka.producer.properties.sasl.jaas.config=org.apache.kafka.common.security.plain.PlainLoginModule required username="bintest" password="bintest";


###########【初始化消费者配置】###########
# 默认的消费组ID
spring.kafka.consumer.properties.group.id=GLT18_CMBKafkaExamples
# 是否自动提交offset
spring.kafka.consumer.enable-auto-commit=true
# 提交offset延时(接收到消息后多久提交offset)
spring.kafka.consumer.auto.commit.interval.ms=1000
# 当kafka中没有初始offset或offset超出范围时将自动重置offset
# earliest:重置为分区中最小的offset;
# latest:重置为分区中最新的offset(消费分区中新产生的数据);
# none:只要有一个分区不存在已提交的offset,就抛出异常;
spring.kafka.consumer.auto-offset-reset=latest
# 消费会话超时时间(超过这个时间consumer没有发送心跳,就会触发rebalance操作)
spring.kafka.consumer.properties.session.timeout.ms=120000
# 消费请求超时时间
spring.kafka.consumer.properties.request.timeout.ms=180000
# Kafka提供的序列化和反序列化类
spring.kafka.consumer.key-deserializer=org.apache.kafka.common.serialization.StringDeserializer
spring.kafka.consumer.value-deserializer=org.apache.kafka.common.serialization.StringDeserializer
# 消费端监听的topic不存在时，项目启动会报错(关掉)
spring.kafka.listener.missing-topics-fatal=false
# 设置批量消费
# spring.kafka.listener.type=batch
# 批量消费每次最多消费多少条消息
# spring.kafka.consumer.max-poll-records=50

# 授权配置
spring.kafka.consumer.properties.sasl.mechanism=PLAIN
spring.kafka.consumer.properties.security.protocol=SASL_PLAINTEXT
# 填入认证的账号密码
spring.kafka.consumer.properties.sasl.jaas.config=org.apache.kafka.common.security.plain.PlainLoginModule required username="bintest" password="bintest";

到了这里，关于八、SpringBoot集成Kafka的文章就介绍完了。如果您还想了解更多内容，请在右上角搜索TOY模板网以前的文章或继续浏览下面的相关文章，希望大家以后多多支持TOY模板网！