Centos7 Apache-RocketMq4.+搭建及rocketmq demo
阿里云官方已经提供了云消息队列服务
官方文档地址：https://help.aliyun.com/product/29530.html?spm=5176.doc44712.3.1.DvSXmn
Apache的quick start 链接：
http://rocketmq.apache.org/docs/quick-start/
完整代码见Github：
https://github.com/cbamls/Apache-RocketMq-Demo
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环境要求：
64bit OS, Linux/Unix/Mac is recommended;
64bit JDK 1.7+;
Maven 3.2.x
Git
服务端安装
jdk自行安装
安装maven：
cd /usr/local/src
wget http://mirrors.hust.edu.cn/apache/maven/maven-3/3.5.0/binaries/apache-maven-3.5.0-bin.tar.gz配置环境变量， JAVA_HOME 因人而异啊。
# jdk7 settings
JAVA_HOME=/opt/jdk1.7.0_79
JRE_HOME=$JAVA_HOME/jre
PATH=$PATH:$JAVA_HOME/bin:$JRE_HOME/bin
CLASSPATH=:$JAVA_HOME/lib/dt.jar:$JAVA_HOME/lib/tools.jar:$JRE_HOME/lib
export JAVA_HOME JRE_HOME PATH CLASSPATH
export M2_HOME=/usr/local/src/apache-maven-3.5.0
export PATH=$ZOOKEEPER_HOME/bin:$M2_HOME/bin:$PATH
export PATH
检测maven：
[root@localhost ~]# mvn -v
Apache Maven 3.5.0 (ff8f5e7444045639af65f6095c62210b5713f426; 2017-04-04T03:39:06+08:00)
Maven home: /usr/local/src/apache-maven-3.5.0
Java version: 1.7.0_79, vendor: Oracle Corporation
Java home: /opt/jdk1.7.0_79/jre
Default locale: en_US, platform encoding: UTF-8
OS name: "linux", version: "2.6.32-642.4.2.el6.x86_64", arch: "amd64", family: "unix"
[root@localhost ~]# clone Apache-RocketMq源码并maven build：
> git clone https://github.com/apache/incubator-rocketmq.git
> cd incubator-rocketmq
> mvn clean package install -Prelease-all assembly:assembly -U
> cd target/apache-rocketmq-all/完成 build的结果：
To refactor, move this assembly into a child project and use the flag true in each moduleSet.
[INFO] Building tar: /usr/local/src/incubator-rocketmq/target/apache-rocketmq-all.tar.gz
[INFO] ------------------------------------------------------------------------
[INFO] Reactor Summary:
[INFO]
[INFO] Apache RocketMQ 4.1.0-incubating-SNAPSHOT .......... SUCCESS [ 17.218 s]
[INFO] rocketmq-remoting 4.1.0-incubating-SNAPSHOT ........ SUCCESS [ 26.766 s]
[INFO] rocketmq-common 4.1.0-incubating-SNAPSHOT .......... SUCCESS [ 9.472 s]
[INFO] rocketmq-client 4.1.0-incubating-SNAPSHOT .......... SUCCESS [ 16.182 s]
[INFO] rocketmq-store 4.1.0-incubating-SNAPSHOT ........... SUCCESS [ 16.367 s]
[INFO] rocketmq-srvutil 4.1.0-incubating-SNAPSHOT ......... SUCCESS [ 0.977 s]
[INFO] rocketmq-broker 4.1.0-incubating-SNAPSHOT .......... SUCCESS [ 28.364 s]
[INFO] rocketmq-tools 4.1.0-incubating-SNAPSHOT ........... SUCCESS [ 4.477 s]
[INFO] rocketmq-namesrv 4.1.0-incubating-SNAPSHOT ......... SUCCESS [ 32.307 s]
[INFO] rocketmq-example 4.1.0-incubating-SNAPSHOT ......... SUCCESS [ 1.684 s]
[INFO] rocketmq-filtersrv 4.1.0-incubating-SNAPSHOT ....... SUCCESS [ 1.585 s]
[INFO] rocketmq-test 4.1.0-incubating-SNAPSHOT ............ SUCCESS [ 7.249 s]
[INFO] ------------------------------------------------------------------------
[INFO] BUILD SUCCESS
[INFO] ------------------------------------------------------------------------
[INFO] Total time: 06:41 min
[INFO] Finished at: 2017-04-09T10:47:18+08:00
[INFO] Final Memory: 54M/653M
[INFO] ------------------------------------------------------------------------
启动namesrv和broker
nohup sh mqnamesrv &
nohup sh mqbroker -n localhost:9876 &关闭服务
> 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) OKProvider 和Consumer代码：
package cn.m1c.rocket;
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 java.util.concurrent.TimeUnit;
public class Producer {
public static void main(String[] args) throws MQClientException,
InterruptedException, MQClientException {
/**
* 一个应用创建一个Producer，由应用来维护此对象，可以设置为全局对象或者单例
* 注意：ProducerGroupName需要由应用来保证唯一
* ProducerGroup这个概念发送普通的消息时，作用不大，但是发送分布式事务消息时，比较关键，
* 因为服务器会回查这个Group下的任意一个Producer
*/
final DefaultMQProducer producer = new DefaultMQProducer("ProducerGroupName");
producer.setNamesrvAddr("222.27.196.8:9876");
producer.setInstanceName("Producer");
/**
* Producer对象在使用之前必须要调用start初始化，初始化一次即可
* 注意：切记不可以在每次发送消息时，都调用start方法
*/
producer.start();
/**
* 下面这段代码表明一个Producer对象可以发送多个topic，多个tag的消息。
* 注意：send方法是同步调用，只要不抛异常就标识成功。但是发送成功也可会有多种状态，
* 例如消息写入Master成功，但是Slave不成功，这种情况消息属于成功，但是对于个别应用如果对消息可靠性要求极高，
* 需要对这种情况做处理。另外，消息可能会存在发送失败的情况，失败重试由应用来处理。
*/
for(int m =0;m<1;m++){
for (int i = 0; i < 100000; i++){
try {
{
Message msg = new Message("TopicTest2",// topic
"push",// tag
"OrderID00"+i,// key
("Hello MetaQ"+i).getBytes());// body
SendResult sendResult = producer.send(msg);
System.out.print(i);
System.out.print(sendResult);
System.out.print(",");
System.out.print(StringUtils.bytesToString(msg.getBody()));
System.out.println(",");
}
// {
// Message msg = new Message("TopicTest2",// topic
// "TagB",// tag
// "OrderID0034",// key
// ("Hello MetaQB").getBytes());// body
// SendResult sendResult = producer.send(msg);
// System.out.println(sendResult);
// }
//
// {
// Message msg = new Message("TopicTest3",// topic
// "TagC",// tag
// "OrderID061",// key
// ("Hello MetaQC").getBytes());// body
// SendResult sendResult = producer.send(msg);
// System.out.println(sendResult);
// }
try {
TimeUnit.MILLISECONDS.sleep(100);
} catch (InterruptedException e) {
e.printStackTrace();
}
}catch(Exception e) {
e.printStackTrace();
}
// TimeUnit.MILLISECONDS.sleep(10);
}
}
/**
* 应用退出时，要调用shutdown来清理资源，关闭网络连接，从MetaQ服务器上注销自己
* 注意：我们建议应用在JBOSS、Tomcat等容器的退出钩子里调用shutdown方法
*/
// producer.shutdown();
Runtime.getRuntime().addShutdownHook(new Thread(new Runnable() {
public void run() {
producer.shutdown();
}
}));
System.exit(0);
}
}消费端：
package cn.m1c.rocket;
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 org.apache.rocketmq.common.protocol.heartbeat.MessageModel;
import java.util.List;
public class PushConsumer {
/**
* 当前例子是PushConsumer用法，使用方式给用户感觉是消息从RocketMQ服务器推到了应用客户端。
* 但是实际PushConsumer内部是使用长轮询Pull方式从MetaQ服务器拉消息，然后再回调用户Listener方法
*/
public static void main(String[] args) throws InterruptedException, MQClientException, MQClientException {
/**
* 一个应用创建一个Consumer，由应用来维护此对象，可以设置为全局对象或者单例
* 注意：ConsumerGroupName需要由应用来保证唯一
*/
DefaultMQPushConsumer consumer = new DefaultMQPushConsumer(
"ConsumerGroupName");
consumer.setNamesrvAddr("222.27.196.8:9876");
consumer.setInstanceName("Consumber");
consumer.setMessageModel(MessageModel.CLUSTERING);
// consumer.setConsumeThreadMin(1);
// consumer.setConsumeThreadMax(1);
/**
* 订阅指定topic下tags分别等于TagA或TagC或TagD
*/
consumer.subscribe("TopicTest1","TagA || TagC || TagD");
/**
* 订阅指定topic下所有消息
* 注意：一个consumer对象可以订阅多个tag
*/
consumer.subscribe("TopicTest2","*");
consumer.registerMessageListener(new MessageListenerConcurrently() {
public ConsumeConcurrentlyStatus consumeMessage(
List msgs, ConsumeConcurrentlyContext context) {
System.out.println(Thread.currentThread().getName()
+" Receive New Messages: " + msgs.size());
MessageExt msg = msgs.get(0);
if(msg.getTopic().equals("TopicTest1")) {
//执行TopicTest1的消费逻辑
if(msg.getTags() != null && msg.getTags().equals("TagA")) {
//执行TagA的消费
System.out.println(StringUtils.bytesToString(msg.getBody()));
}else if (msg.getTags() != null
&&msg.getTags().equals("TagC")) {
//执行TagC的消费
System.out.println(StringUtils.bytesToString(msg.getBody()));
}else if (msg.getTags() != null
&&msg.getTags().equals("TagD")) {
//执行TagD的消费
System.out.println(StringUtils.bytesToString(msg.getBody()));
}
}else if (msg.getTopic().equals("TopicTest2")) {
System.out.println(StringUtils.bytesToString(msg.getBody()));
}
return ConsumeConcurrentlyStatus.CONSUME_SUCCESS;
}
});
/**
* Consumer对象在使用之前必须要调用start初始化，初始化一次即可
*/
consumer.start();
System.out.println("ConsumerStarted.");
}
}