批量发送，报错，请求修改调试成功后再粘贴正确答案

Question

package com.example.rocketmq.comj;

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.exception.RemotingException;

import java.nio.charset.StandardCharsets;
import java.util.ArrayList;
//批量发送
public class BatchProducer {
    public static void main(String[] args) throws MQClientException, RemotingException, InterruptedException, MQBrokerException {
        //创建生产组
        DefaultMQProducer producer = new DefaultMQProducer("BatchProducer");
        //连接
        producer.setNamesrvAddr("192.168.88.130:9876");
        //开始
        producer.start();
        ArrayList<Message> messages = new ArrayList<>();
        for (int i=0;i<2;i++){
            //把消息放入Simple中
            Message message = new Message("Simple","Tags","BatchProducer".getBytes(StandardCharsets.UTF_8));
            messages.add(message);

        }
        SendResult sendResult = producer.send(messages);
        System.out.println("消息发送成功"+sendResult);

        producer.shutdown();

    }
}
package com.example.rocketmq.comj;

import org.apache.rocketmq.client.consumer.DefaultMQPushConsumer;
import org.apache.rocketmq.client.consumer.listener.ConsumeConcurrentlyContext;
import org.apache.rocketmq.client.consumer.listener.ConsumeConcurrentlyStatus;
import org.apache.rocketmq.client.consumer.listener.MessageListenerConcurrently;
import org.apache.rocketmq.client.exception.MQClientException;
import org.apache.rocketmq.common.message.MessageExt;

import java.util.List;

//批量发送
public class Comsumer {
    public static void main(String[] args) throws MQClientException {
        //创建消息组
        DefaultMQPushConsumer consumer = new DefaultMQPushConsumer("Synccomsumer");
        //连接
        consumer.setNamesrvAddr("192.168.88.130:9876");
        //拿到Simple，再过滤
        consumer.subscribe("Simple","*");
        consumer.setMessageListener(new MessageListenerConcurrently() {
            @Override
            public ConsumeConcurrentlyStatus consumeMessage(List<MessageExt> list, ConsumeConcurrentlyContext consumeConcurrentlyContext) {
                for (int i=1;i<list.size();i++){
                    System.out.println("消息消费成功_"+new String(list.get(i).getBody()));
                }

                return ConsumeConcurrentlyStatus.CONSUME_SUCCESS;
            }
        });
        consumer.start();
        System.out.println("消费者启动成功");

    }
}

Answer 1

发送消息时，容易超时，增加超时时间设置。

SendResult sendResult = producer.send(messages);
改为：
SendResult sendResult = producer.send(messages,30*1000);