1.安装kafka+zookeeper环境
2.利用命令创建好topic
参考官网 http://kafka.apache.org/documentation/
1) kafka-clients 包版本与服务器端kafka-clients版本保持一致(查看服务器kafka版本方法 在kafka安装目录下libs 中查找kafka-clients开头的jar文件)
2)引入的spring-kafka 版本在2.0或者2.X 时Spring版本在5.0才能支持
...
<dependency>
<groupId>org.apache.kafka</groupId>
<artifactId>kafka-clients</artifactId>
<version>1.0.1</version>
</dependency>
<dependency>
<groupId>org.springframework.kafka</groupId>
<artifactId>spring-kafka</artifactId>
<version>1.3.5.RELEASE</version>
<exclusions>
<exclusion>
<groupId>org.apache.kafka</groupId>
<artifactId>kafka-clients</artifactId>
</exclusion>
</exclusions>
</dependency>
...
1 # brokers集群 2 kafka.producer.bootstrap.servers = ip1:9092,ip2:9092,ip3:9092 3 4 kafka.producer.acks = all 5 6 #发送失败重试次数 7 kafka.producer.retries = 3 8 9 kafka.producer.linger.ms = 10 10 11 # 33554432 即32MB的批处理缓冲区 12 kafka.producer.buffer.memory = 40960 13 14 #批处理条数:当多个记录被发送到同一个分区时,生产者会尝试将记录合并到更少的请求中。这有助于客户端和服务器的性能 15 kafka.producer.batch.size = 4096 16 17 kafka.producer.defaultTopic = nwbs-eval-task 18 19 kafka.producer.key.serializer = org.apache.kafka.common.serialization.StringSerializer 20 21 kafka.producer.value.serializer = org.apache.kafka.common.serialization.StringSerializer 22 23 24 ################# kafka consumer ################## , 25 kafka.consumer.bootstrap.servers = ip1:9092,ip2,ip3:9092 26 27 # 如果为true,消费者的偏移量将在后台定期提交 28 kafka.consumer.enable.auto.commit = true 29 30 #如何设置为自动提交(enable.auto.commit=true),这里设置自动提交周期 31 kafka.consumer.auto.commit.interval.ms=1000 32 33 #order-beta 消费者群组ID,发布-订阅模式,即如果一个生产者,多个消费者都要消费,那么需要定义自己的群组,同一群组内的消费者只有一个能消费到消息 34 kafka.consumer.group.id = sccl-nwbs 35 36 #在使用Kafka的组管理时,用于检测消费者故障的超时 37 kafka.consumer.session.timeout.ms = 30000 38 39 kafka.consumer.key.deserializer = org.apache.kafka.common.serialization.StringDeserializer 40 kafka.consumer.value.deserializer = org.apache.kafka.common.serialization.StringDeserializer
需要注意cn.**.kafka.KafkaConsumerSerivceImpl 此类 需要实现 MessageListener 接口
1 <?xml version="1.0" encoding="UTF-8"?> 2 <beans xmlns="http://www.springframework.org/schema/beans" 3 xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" 4 xsi:schemaLocation="http://www.springframework.org/schema/beans 5 http://www.springframework.org/schema/beans/spring-beans.xsd"> 6 <!-- 1.定义consumer的参数 --> 7 <!--<context:property-placeholder location="classpath*:kafka/kafka.properties" />--> 8 <bean id="consumerProperties" class="java.util.HashMap"> 9 <constructor-arg> 10 <map> 11 <entry key="bootstrap.servers" value="${kafka.consumer.bootstrap.servers}" /> 12 <entry key="group.id" value="${kafka.consumer.group.id}" /> 13 <entry key="enable.auto.commit" value="${kafka.consumer.enable.auto.commit}" /> 14 <entry key="session.timeout.ms" value="${kafka.consumer.session.timeout.ms}" /> 15 <entry key="auto.commit.interval.ms" value="${kafka.consumer.auto.commit.interval.ms}" /> 16 <entry key="retry.backoff.ms" value="100" /> 17 <entry key="key.deserializer" 18 value="${kafka.consumer.key.deserializer}" /> 19 <entry key="value.deserializer" 20 value="${kafka.consumer.value.deserializer}" /> 21 </map> 22 </constructor-arg> 23 </bean> 24 25 <!-- 2.创建consumerFactory bean --> 26 <bean id="consumerFactory" 27 class="org.springframework.kafka.core.DefaultKafkaConsumerFactory" > 28 <constructor-arg> 29 <ref bean="consumerProperties" /> 30 </constructor-arg> 31 </bean> 32 33 <!--<!– 3.定义消费实现类 –>--> 34 <bean id="kafkaConsumerService" class="cn.**.kafka.KafkaConsumerSerivceImpl" /> 35 36 <!-- 4.消费者容器配置信息 --> 37 <bean id="containerProperties" class="org.springframework.kafka.listener.config.ContainerProperties"> 38 <!-- topic --> 39 <constructor-arg name="topics"> 40 <list> 41 <value>${kafka.task.eval.topic}</value> 42 <value>${kafka.task.optimizeNetwork.topic}</value> 43 <value>${kafka.task.business.topic}</value> 44 </list> 45 </constructor-arg> 46 <property name="messageListener" ref="kafkaConsumerService" /> 47 </bean> 48 <!-- 5.消费者并发消息监听容器,执行doStart()方法 --> 49 <bean id="messageListenerContainer" class="org.springframework.kafka.listener.ConcurrentMessageListenerContainer" init-method="doStart" > 50 <constructor-arg ref="consumerFactory" /> 51 <constructor-arg ref="containerProperties" /> 52 <property name="concurrency" value="${kafka.consumer.concurrency}" /> 53 </bean> 54 </beans>
1 <?xml version="1.0" encoding="UTF-8"?> 2 <beans xmlns="http://www.springframework.org/schema/beans" 3 xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" 4 xsi:schemaLocation="http://www.springframework.org/schema/beans 5 http://www.springframework.org/schema/beans/spring-beans.xsd"> 6 7 <!--<context:property-placeholder location="classpath:kafka/kafka.properties" />--> 8 <!-- 定义producer的参数 --> 9 <bean id="producerProperties" class="java.util.HashMap"> 10 <constructor-arg> 11 <map> 12 <entry key="bootstrap.servers" value="${kafka.producer.bootstrap.servers}" /> 13 <!--<entry key="group.id" value="${group.id}" />--> 14 <entry key="retries" value="${kafka.producer.retries}" /> 15 <entry key="batch.size" value="${kafka.producer.batch.size}" /> 16 <entry key="linger.ms" value="${kafka.producer.linger.ms}" /> 17 <entry key="buffer.memory" value="${kafka.producer.buffer.memory}" /> 18 <entry key="acks" value="${kafka.producer.acks}" /> 19 <entry key="key.serializer" 20 value="${kafka.producer.key.serializer}" /> 21 <entry key="value.serializer" 22 value="${kafka.producer.value.serializer}"/> 23 </map> 24 </constructor-arg> 25 </bean> 26 27 <!-- 创建kafkatemplate需要使用的producerfactory bean --> 28 <bean id="producerFactory" 29 class="org.springframework.kafka.core.DefaultKafkaProducerFactory"> 30 <constructor-arg> 31 <ref bean="producerProperties" /> 32 </constructor-arg> 33 </bean> 34 35 <!-- 创建kafkatemplate bean,使用的时候,只需要注入这个bean,即可使用template的send消息方法 --> 36 <bean id="kafkaTemplate" class="org.springframework.kafka.core.KafkaTemplate"> 37 <constructor-arg ref="producerFactory" /> 38 <constructor-arg name="autoFlush" value="true" /> 39 <property name="defaultTopic" value="${kafka.producer.defaultTopic}" /> 40 </bean> 41 </beans>
/** * @author: hsc * @date: 2018/6/19 14:44 * @description 文件描述 */ @RestController @RequestMapping(value = "/kafka") public class KafkaController { @Autowired KafkaTemplate kafkaTemplate; @Value("nwbs-optimizeNetwork-task") private String optimizeTopic ; @Value("nwbs-business-task") private String businessTopic; @RequestMapping(value = "/producer" , method = RequestMethod.POST) public void producer(@RequestBody JSONObject params){ kafkaTemplate.send(optimizeTopic,params.toJSONString()+"optimizeTopic"); kafkaTemplate.send(businessTopic,params.toJSONString()+"businessTopic"); ListenableFuture<SendResult<String, String>> listenableFuture = kafkaTemplate.sendDefault(params.toJSONString());; //发送成功回调 SuccessCallback<SendResult<String, String>> successCallback = new SuccessCallback<SendResult<String, String>>() { @Override public void onSuccess(SendResult<String, String> result) { //成功业务逻辑 System.out.println("onSuccess"); } }; //发送失败回调 FailureCallback failureCallback = new FailureCallback() { @Override public void onFailure(Throwable ex) { //失败业务逻辑 System.out.println("onFailure"); } }; listenableFuture.addCallback(successCallback, failureCallback); } }
参考spring-kafka官方文档 https://docs.spring.io/spring-kafka/reference/htmlsingle/
1 /** 2 * @author: hsc 3 * @date: 2018/6/21 15:58 4 * @description kafka 消费者配置 5 */ 6 @Configuration 7 @EnableKafka 8 public class KafkaConsumerConfig { 9 public KafkaConsumerConfig(){ 10 System.out.println("kafka消费者配置加载..."); 11 } 12 @Bean 13 KafkaListenerContainerFactory<ConcurrentMessageListenerContainer<Integer, String>> 14 kafkaListenerContainerFactory() { 15 ConcurrentKafkaListenerContainerFactory<Integer, String> factory = 16 new ConcurrentKafkaListenerContainerFactory(); 17 factory.setConsumerFactory(consumerFactory()); 18 factory.setConcurrency(3); 19 factory.getContainerProperties().setPollTimeout(3000); 20 return factory; 21 } 22 23 @Bean 24 public ConsumerFactory<Integer, String> consumerFactory() { 25 return new DefaultKafkaConsumerFactory(consumerProperties()); 26 } 27 28 @Bean 29 public Map<String, Object> consumerProperties() { 30 Map<String, Object> props= new HashMap<String, Object>(); 31 props.put(ConsumerConfig.BOOTSTRAP_SERVERS_CONFIG, PropertiesUtil.getInstance().getString("kafka.consumer.bootstrap.servers")); 32 props.put(ConsumerConfig.GROUP_ID_CONFIG, PropertiesUtil.getInstance().getString("kafka.consumer.group.id")); 33 props.put(ConsumerConfig.ENABLE_AUTO_COMMIT_CONFIG, PropertiesUtil.getInstance().getString("kafka.consumer.enable.auto.commit")); 34 props.put(ConsumerConfig.AUTO_COMMIT_INTERVAL_MS_CONFIG, PropertiesUtil.getInstance().getString("kafka.consumer.auto.commit.interval.ms")); 35 props.put(ConsumerConfig.SESSION_TIMEOUT_MS_CONFIG, PropertiesUtil.getInstance().getString("kafka.consumer.session.timeout.ms")); 36 props.put(ConsumerConfig.KEY_DESERIALIZER_CLASS_CONFIG, PropertiesUtil.getInstance().getString("kafka.consumer.key.deserializer")); 37 props.put(ConsumerConfig.VALUE_DESERIALIZER_CLASS_CONFIG, PropertiesUtil.getInstance().getString("kafka.consumer.value.deserializer")); 38 return props; 39 } 40 41 @Bean 42 public KafkaConsumerListener kafkaConsumerListener(){ 43 return new KafkaConsumerListener(); 44 } 45 46 }
1 /** 2 * @author: hsc 3 * @date: 2018/6/21 21:30 4 * @description kafka 生产者配置 5 */ 6 @Configuration 7 @EnableKafka 8 public class KafkaProducerConfig { 9 public KafkaProducerConfig(){ 10 System.out.println("kafka生产者配置"); 11 } 12 @Bean 13 public ProducerFactory<Integer, String> producerFactory() { 14 return new DefaultKafkaProducerFactory(producerProperties()); 15 } 16 17 @Bean 18 public Map<String, Object> producerProperties() { 19 Map<String, Object> props = new HashMap<String, Object>(); 20 props.put(ProducerConfig.BOOTSTRAP_SERVERS_CONFIG, PropertiesUtil.getInstance().getString("kafka.producer.bootstrap.servers")); 21 props.put(ProducerConfig.KEY_SERIALIZER_CLASS_CONFIG, PropertiesUtil.getInstance().getString("kafka.producer.key.serializer")); 22 props.put(ProducerConfig.VALUE_SERIALIZER_CLASS_CONFIG,PropertiesUtil.getInstance().getString("kafka.producer.value.serializer")); 23 props.put(ProducerConfig.RETRIES_CONFIG,PropertiesUtil.getInstance().getInt("kafka.producer.retries")); 24 props.put(ProducerConfig.BATCH_SIZE_CONFIG,PropertiesUtil.getInstance().getInt("kafka.producer.batch.size",1048576)); 25 props.put(ProducerConfig.LINGER_MS_CONFIG,PropertiesUtil.getInstance().getInt("kafka.producer.linger.ms")); 26 props.put(ProducerConfig.BUFFER_MEMORY_CONFIG,PropertiesUtil.getInstance().getLong("kafka.producer.buffer.memory",33554432L)); 27 props.put(ProducerConfig.ACKS_CONFIG,PropertiesUtil.getInstance().getString("kafka.producer.acks","all")); 28 return props; 29 } 30 31 @Bean 32 public KafkaTemplate<Integer, String> kafkaTemplate() { 33 KafkaTemplate kafkaTemplate = new KafkaTemplate<Integer, String>(producerFactory(),true); 34 kafkaTemplate.setDefaultTopic(PropertiesUtil.getInstance().getString("kafka.producer.defaultTopic","default")); 35 return kafkaTemplate; 36 } 37 38 }
/** * @author: hsc * @date: 2018/6/21 16:33 * @description 消费者listener */ public class KafkaConsumerListener { /** * @param data */ @KafkaListener(groupId="xxx" ,topics = "xxx") void listener(ConsumerRecord<String, String> data){ System.out.println("消费者线程:"+Thread.currentThread().getName()+"[ 消息 来自kafkatopic:"+data.topic()+",分区:"+data.partition() +" ,委托时间:"+data.timestamp()+"]消息内容如下:"); System.out.println(data.value()); } }
参考文章(结合官方文档一起看)
http://www.cnblogs.com/dennyzhangdd/p/7759875.html
原文:https://www.cnblogs.com/hsc13-lxy14/p/9211224.html