RocketMQ实现数据分发

1.生产者

依赖

        <dependency>
            <groupId>org.apache.rocketmq</groupId>
            <artifactId>rocketmq-client</artifactId>
            <version>4.7.1</version>
        </dependency>

代码

import org.apache.rocketmq.client.exception.MQBrokerException;
import org.apache.rocketmq.client.exception.MQClientException;
import org.apache.rocketmq.client.producer.DefaultMQProducer;
import org.apache.rocketmq.client.producer.SendResult;
import org.apache.rocketmq.common.message.Message;
import org.apache.rocketmq.remoting.common.RemotingHelper;
import org.apache.rocketmq.remoting.exception.RemotingException;
import java.io.UnsupportedEncodingException;
/**
 * @description: RocketListener
 * @author: xxx
 * @date: 2020-08-05 11:09
 */
public class SyncProducer {
    
    
    public static void main(String[] args) throws Exception {
    
    
        //Instantiate with a producer group name.
        DefaultMQProducer producer = new
                DefaultMQProducer("qes");
        // Specify name server addresses.
        producer.setNamesrvAddr("127.127.127.127:9876");
        //Launch the instance.
        producer.start();
        for (int i = 0; i < 1; i++) {
    
    
            //Create a message instance, specifying topic, tag and message body.
            try {
    
    
                String messageJson = "{\"action\":3,\"subject\":\"dim_product\",\"data\":[{\"id\":\"459\",\"brand\":\"Lenovo\",\"productline\":\"PH\",\"productfamily\":\"Lenovo A Series\",\"marketname\":\"Lenovo A7\",\"internalname\":\"AK47\",\"sci_npi_pmd_program_name\":\"N/A\",\"design_type\":\"ODM-Fast Track\",\"odm\":\"Sprocomm\",\"modelname\":\"L19111\",\"blurname\":\"\",\"carrier\":\"N/A\",\"apccode\":\"N/A\",\"sadate\":\"\",\"dualsim\":\"\",\"isbarcode\":\"0\",\"launch_year\":\"FY20\",\"archive\":\"1\",\"design_type0\":\"ODM\",\"updatetime\":\"2020-06-05 17:40:494\"}]}";
                Message msg = new Message("qesTT" /* Topic */,
                        "product-addOrUpdate" /* Tag */,
                        "OrderId188" /* key */,
                        messageJson.getBytes(RemotingHelper.DEFAULT_CHARSET) /* Message body,DEFAULT_CAHRSET:UTF-8*/
                );
                //Call send message to deliver message to one of brokers.
                SendResult sendResult = producer.send(msg);
                System.out.printf("%s%n", sendResult);
            } catch (UnsupportedEncodingException e) {
    
    
                e.printStackTrace();
            } catch (MQClientException e) {
    
    
                e.printStackTrace();
            } catch (RemotingException e) {
    
    
                e.printStackTrace();
            } catch (MQBrokerException e) {
    
    
                e.printStackTrace();
            } catch (InterruptedException e) {
    
    
                e.printStackTrace();
            }
        }
        //Shut down once the producer instance is not longer in use.
        producer.shutdown();

    }
}

2.消费者

依赖

        <dependency>
            <groupId>org.apache.rocketmq</groupId>
            <artifactId>rocketmq-spring-boot</artifactId>
            <version>2.1.1</version>
        </dependency>

消费者配置

rocketmq:
  name-server: 127.127.127.127:9876

代码

import com.alibaba.fastjson.JSON;
import com.alibaba.fastjson.JSONArray;
import com.alibaba.fastjson.JSONObject;
import com.lenovo.qit.system.service.IDimProductService;
import org.apache.commons.collections.CollectionUtils;
import org.apache.commons.lang3.StringUtils;
import org.apache.rocketmq.spring.annotation.ConsumeMode;
import org.apache.rocketmq.spring.annotation.RocketMQMessageListener;
import org.apache.rocketmq.spring.core.RocketMQListener;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.stereotype.Component;

import javax.annotation.Resource;
import java.util.Arrays;
import java.util.List;

/**
 * @description: RocketListener
 * @author: xxx
 * @date: 2020-08-05 11:09
 */
@RocketMQMessageListener(topic = "qes",
        consumerGroup = "qit",
        selectorExpression = "qit || sqm|qit",
        consumeMode = ConsumeMode.ORDERLY)
@Component
public class RocketListener
        implements RocketMQListener<String>
{
    
    

参考：
https://blog.csdn.net/zhoudingding/article/details/106942574