RocketMQ使用记录
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he following softwares are assumed installed:
- 64bit OS, Linux/Unix/Mac is recommended;
- 64bit JDK 1.8+;
- Maven 3.2.x;
- Git;
- 4g+ free disk for Broker server
Download & Build from Release
Click here to download the 4.4.0 source release. Also you could download a binary release from here.
Now execute the following commands to unpack 4.4.0 source release and build the binary artifact.
> unzip rocketmq-all-4.4.0-source-release.zip
> cd rocketmq-all-4.4.0/
> mvn -Prelease-all -DskipTests clean install -U
> cd distribution/target/apache-rocketmq
Start Name Server
> nohup sh bin/mqnamesrv &
> tail -f ~/logs/rocketmqlogs/namesrv.log
The Name Server boot success...
Start Broker
> nohup sh bin/mqbroker -n localhost:9876 &
> tail -f ~/logs/rocketmqlogs/broker.log
The broker[%s, 172.30.30.233:10911] boot success...
Send & Receive Messages
Before sending/receiving messages, we need to tell clients the location of name servers. RocketMQ provides multiple ways to achieve this. For simplicity, we use environment variable NAMESRV_ADDR
> export NAMESRV_ADDR=localhost:9876
> sh bin/tools.sh org.apache.rocketmq.example.quickstart.Producer
SendResult [sendStatus=SEND_OK, msgId= ...
> sh bin/tools.sh org.apache.rocketmq.example.quickstart.Consumer
ConsumeMessageThread_%d Receive New Messages: [MessageExt...
Shutdown Servers
> sh bin/mqshutdown broker
The mqbroker(36695) is running...
Send shutdown request to mqbroker(36695) OK
> sh bin/mqshutdown namesrv
The mqnamesrv(36664) is running...
Send shutdown request to mqnamesrv(36664) OK
Updated:December 30, 2016
好久没有更新博客了，这次讲讲RocketMQ的部署和使用。
http://rocketmq.apache.org/
首先去下载源码，网站上有说明RocketMQ的部署环境：
1、64bit OS, Linux/Unix/Mac is recommended;
2、64bit JDK 1.8+;
3、Maven 3.2.x
4、Git
这里的Git可有可无（用于Git工具从GitHub下载RocketMQ源码），如果没有也可以直接去上面的地址下载RocketMQ源码。
下载完成以后，根据 http://rocketmq.apache.org/docs/quick-start/ 的步骤完成解压、编译、运行。
待到Name Server和Broker都跑起来，就可以运行Java代码测试功能了。
MQProducer
package MQProducer;
import org.apache.rocketmq.client.producer.DefaultMQProducer;
import org.apache.rocketmq.client.producer.SendResult;
import org.apache.rocketmq.common.message.Message;
public class Producer {
public static void main(String[] args){
DefaultMQProducer producer = new DefaultMQProducer("Producer");
producer.setNamesrvAddr("127.0.0.1:9876");
try {
producer.start();
Message msg = new Message("PushTopic",
"push",
"1",
"Just for test.".getBytes());
SendResult result = producer.send(msg);
System.out.println("id:" + result.getMsgId() +
" result:" + result.getSendStatus());
msg = new Message("PushTopic",
"push",
"2",
"Just for test.".getBytes());
result = producer.send(msg);
System.out.println("id:" + result.getMsgId() +
" result:" + result.getSendStatus());
msg = new Message("PullTopic",
"pull",
"1",
"Just for test.".getBytes());
result = producer.send(msg);
System.out.println("id:" + result.getMsgId() +
" result:" + result.getSendStatus());
} catch (Exception e) {
e.printStackTrace();
}finally{
producer.shutdown();
}
}
}
MQConsumer
package MQConsumer;
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.common.consumer.ConsumeFromWhere;
import org.apache.rocketmq.common.message.Message;
import org.apache.rocketmq.common.message.MessageExt;
import java.util.List;
public class Consumer {
public static void main(String[] args){
DefaultMQPushConsumer consumer =
new DefaultMQPushConsumer("PushConsumer");
consumer.setNamesrvAddr("127.0.0.1:9876");
try {
//订阅PushTopic下Tag为push的消息
consumer.subscribe("PushTopic", "push");
//程序第一次启动从消息队列头取数据
consumer.setConsumeFromWhere(
ConsumeFromWhere.CONSUME_FROM_FIRST_OFFSET);
consumer.registerMessageListener(
new MessageListenerConcurrently() {
public ConsumeConcurrentlyStatus consumeMessage(
List<MessageExt> list,
ConsumeConcurrentlyContext Context) {
Message msg = list.get(0);
System.out.println(msg.toString());
return ConsumeConcurrentlyStatus.CONSUME_SUCCESS;
}
}
);
consumer.start();
} catch (Exception e) {
e.printStackTrace();
}
}
}
RocketMQ订阅是根据Topic的信息来的，所以这里只能收到PushTopic的消息，而收不到PullTopic的。
注意：下列jar包一个都不能少。
fastjson-1.2.44.jar
netty-all-4.1.19.Final.jar
rocketmq-client-4.2.0.jar
rocketmq-common-4.2.0.jar
rocketmq-remoting-4.2.0.jar
slf4j-api-1.7.25.jar
slf4j-nop-1.7.25.jar
slf4j是RocketMQ记录日志的。fastjson也是必要的，如果没有这个jar包，可能会出现找不到路由的错误。
java -version
java version "1.8.0_152"
Java(TM) SE Runtime Environment (build 1.8.0_152-b16)
Java HotSpot(TM) 64-Bit Server VM (build 25.152-b16, mixed mode)
1
2
3
mvn -v
Apache Maven 3.5.2
1
RocketMQ version
4.2.0
1
最后，开启RocketMQ，跑代码
---------------------
作者：Michael_Zhan_Tcys
来源：CSDN
原文：https://blog.csdn.net/u012138272/article/details/79050907
版权声明：本文为博主原创文章，转载请附上博文链接！
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使用rocketmq参考了下面这两篇博客
https://www.cnblogs.com/lizhangyong/p/8978855.html
https://blog.csdn.net/u013278314/article/details/82497132
感谢博主
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