kafka整合springboot

1、pom.xml添加依赖

 <dependency>
            <groupId>org.springframework.kafka</groupId>
            <artifactId>spring-kafka</artifactId>
 </dependency>

<dependency>
    <groupId>com.typesafe</groupId>
    <artifactId>config</artifactId>
    <version>1.2.1</version>
</dependency>

2、创建配置文件

package com.youfan.config;

import org.apache.kafka.clients.producer.ProducerConfig;
import org.apache.kafka.common.serialization.StringSerializer;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.kafka.annotation.EnableKafka;
import org.springframework.kafka.core.DefaultKafkaProducerFactory;
import org.springframework.kafka.core.KafkaTemplate;
import org.springframework.kafka.core.ProducerFactory;

import java.util.HashMap;
import java.util.Map;

@Configuration
@EnableKafka
public class KafkaProducerConfig {

    @Value("${kafka.producer.servers}")
    private String servers;
    @Value("${kafka.producer.retries}")
    private int retries;
    @Value("${kafka.producer.batch.size}")
    private int batchSize;
    @Value("${kafka.producer.linger}")
    private int linger;
    @Value("${kafka.producer.buffer.memory}")
    private int bufferMemory;

    public Map<String, Object> producerConfigs() {
        Map<String, Object> props = new HashMap<>();
        props.put(ProducerConfig.BOOTSTRAP_SERVERS_CONFIG, servers);
        props.put(ProducerConfig.RETRIES_CONFIG, retries);
        props.put(ProducerConfig.BATCH_SIZE_CONFIG, batchSize);
        props.put(ProducerConfig.LINGER_MS_CONFIG, linger);
        props.put(ProducerConfig.BUFFER_MEMORY_CONFIG, bufferMemory);
        props.put(ProducerConfig.KEY_SERIALIZER_CLASS_CONFIG, StringSerializer.class);
        props.put(ProducerConfig.VALUE_SERIALIZER_CLASS_CONFIG, StringSerializer.class);
        return props;
    }

    public ProducerFactory<String, String> producerFactory() {
        return new DefaultKafkaProducerFactory<String, String>(producerConfigs());
    }

    @Bean
    public KafkaTemplate<String, String> kafkaTemplate() {
        return new KafkaTemplate<String, String>(producerFactory());
    }
}

3、properties文件添加配置信息

                kafka.consumer.zookeeper.connect=192.168.227.129:2181
                kafka.consumer.servers=192.168.227.129:9092
                kafka.consumer.enable.auto.commit=true
                kafka.consumer.session.timeout=6000
                kafka.consumer.auto.commit.interval=100
                kafka.consumer.auto.offset.reset=latest
                kafka.consumer.topic=test
                kafka.consumer.group.id=test
                kafka.consumer.concurrency=10

                kafka.producer.servers=192.168.227.129:9092
                kafka.producer.retries=0
                kafka.producer.batch.size=4096
                kafka.producer.linger=1
                kafka.producer.buffer.memory=40960                

4、编写读取topic的配置文件

public class ReadProperties {
    public final static Config config = ConfigFactory.load("kafka.properties");
    public static String getKey(String key){
        return config.getString(key).trim();
    }
    public static String getKey(String key,String filename){
        Config config =  ConfigFactory.load(filename);
        return config.getString(key).trim();
    }
}
//配置文件内容

//attentionProductLog=attentionProductLog
//buyCartProductLog=buyCartProductLog
//collectProductLog=collectProductLog
//scanProductLog=scanProductLog

5、使用kafka

package com.youfan.Control;

import com.alibaba.fastjson.JSONObject;
import com.youfan.entity.ResultMessage;
import com.youfan.log.AttentionProductLog;
import com.youfan.log.BuyCartProductLog;
import com.youfan.log.CollectProductLog;
import com.youfan.log.ScanProductLog;
import com.youfan.utils.ReadProperties;
import org.apache.commons.lang3.StringUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.kafka.core.KafkaTemplate;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import org.springframework.web.bind.annotation.RestController;

import javax.servlet.http.HttpServletRequest;
import java.util.Date;

/**
 *
 */
@RestController
@RequestMapping("infolog")
public class InfoInControl {
    private final String attentionProductLogTopic = ReadProperties.getKey("attentionProductLog");
    private final String buyCartProductLogTopic = ReadProperties.getKey("buyCartProductLog");
    private final String collectProductLogTopic = ReadProperties.getKey("collectProductLog");
    private final String scanProductLogTopic = ReadProperties.getKey("scanProductLog");

    @Autowired
    private KafkaTemplate<String, String> kafkaTemplate;

    @RequestMapping(value = "helloworld",method = RequestMethod.GET)
    public String hellowolrd(HttpServletRequest req){
        String ip =req.getRemoteAddr();
        ResultMessage resultMessage = new ResultMessage();
        resultMessage.setMessage("hello:"+ip);
        resultMessage.setStatus("success");
        String result = JSONObject.toJSONString(resultMessage);
        return result;
    }

    /**
     * AttentionProductLog:{productid:productid....}
     BuyCartProductLog:{productid:productid....}
     CollectProductLog:{productid:productid....}
     ScanProductLog:{productid:productid....}
     * @param recevicelog
     * @param req
     * @return
     */
    @RequestMapping(value = "receivelog",method = RequestMethod.POST)
    public String hellowolrd(String recevicelog,HttpServletRequest req){
        if(StringUtils.isBlank(recevicelog)){
            return null;
        }
        String[] rearrays = recevicelog.split(":",2);
        String classname = rearrays[0];
        String data = rearrays[1];
        String resulmesage= "";

        if("AttentionProductLog".equals(classname)){
            AttentionProductLog attentionProductLog = JSONObject.parseObject(data,AttentionProductLog.class);
            resulmesage = JSONObject.toJSONString(attentionProductLog);
            kafkaTemplate.send(attentionProductLogTopic,resulmesage+"##1##"+new Date().getTime());
        }else if("BuyCartProductLog".equals(classname)){
            BuyCartProductLog buyCartProductLog = JSONObject.parseObject(data,BuyCartProductLog.class);
            resulmesage = JSONObject.toJSONString(buyCartProductLog);
            kafkaTemplate.send(buyCartProductLogTopic,resulmesage+"##1##"+new Date().getTime());
        }else if("CollectProductLog".equals(classname)){
            CollectProductLog collectProductLog = JSONObject.parseObject(data,CollectProductLog.class);
            resulmesage = JSONObject.toJSONString(collectProductLog);
            kafkaTemplate.send(collectProductLogTopic,resulmesage+"##1##"+new Date().getTime());
        }else if("ScanProductLog".equals(classname)){
            ScanProductLog scanProductLog = JSONObject.parseObject(data,ScanProductLog.class);
            resulmesage = JSONObject.toJSONString(scanProductLog);
            kafkaTemplate.send(scanProductLogTopic,resulmesage+"##1##"+new Date().getTime());
        }
        ResultMessage resultMessage = new ResultMessage();
        resultMessage.setMessage(resulmesage);
        resultMessage.setStatus("success");
        String result = JSONObject.toJSONString(resultMessage);
        return result;
    }

}