RocketMQ 4.2.0 在windows7上安装和开发使用

下载及安装可以参考这个博客：

RocketMQ 安装 For Windows10(完整版）

https://blog.csdn.net/Micholas_Net/article/details/89178761

CMD窗口中，切换到H:\RocketMQ4P2\bin
启动nameserver命令：start mqnamesrv.cmd
启动broker命令：start mqbroker.cmd -n 127.0.0.1:9876
检查下nameserver中是否成功注册了broker: start mqadmin.cmd clusterList -n 127.0.0.1:9876
检查进程成功启动与否：jps
查看broker配置参数：mqbroker -m
查看nameserver配置：mqnamesrv -p

重设Java_home路径,添加set JAVA_HOME=C:\Java\jdk1.8.0_151，假如系统环境不满足。
修改bin下runserver.cmd、runbroker.cmd、tools.cmd以及对应的XML文件，修改JVM大小
修改conf下logback_开头的几个文件，重新指定日志文件路径

eclipse写个demo程序，导入rocketmq-client-4.2.0.jar等等若干jar包，JDK指定为1.8.0。

package cn.rocketmq.demo;

import java.util.List;

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;

public class Consumer {

	public static void main(String[] args) throws MQClientException {
		// 杩欓噷濉啓group鍚嶅瓧
		DefaultMQPushConsumer consumer = new DefaultMQPushConsumer("my-group-name-A");
		// NameServer鍦板潃
		consumer.setNamesrvAddr("127.0.0.1:9876");
		// 1锛歵opic鍚嶅瓧 2锛歵ag鍚嶅瓧
		consumer.subscribe("topic-name-A", "tag-name-A");
		consumer.registerMessageListener(new MessageListenerConcurrently() {

			@Override
			public ConsumeConcurrentlyStatus consumeMessage(
					List<MessageExt> msgs, ConsumeConcurrentlyContext context) {
				
				for (MessageExt msg : msgs) {
					System.out.println(new String(msg.getBody()));
				}
				return ConsumeConcurrentlyStatus.CONSUME_SUCCESS;
			}
		});
		consumer.start();
		System.out.println("Consumer Started!");
	}

}

------------------------------------------------------------------------------

package cn.rocketmq.demo;

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.common.message.Message;
import org.apache.rocketmq.remoting.exception.RemotingException;
 

public class Producer {
 
	public static void main(String[] args) throws MQClientException, RemotingException, InterruptedException, MQBrokerException {
		DefaultMQProducer producer = new DefaultMQProducer("my-group-name-A");
		producer.setNamesrvAddr("127.0.0.1:9876");
		producer.start();
		Message message = new Message("topic-name-A","tag-name-A","Message : My blog address guozh.net".getBytes());
		producer.send(message);
		System.out.println("Message sended");
		producer.shutdown();
		}

}

唯一不爽是如下这个错误折腾了好久，最终下载fastjson-1.2.62.jar，替换之前的fastjson-1.2.29.jar，搞定！！