简介

消息中间件已经成为互联网企业应用系统内部通信的核心手段，是目前企业内主流标配技术，
它具有解耦、异步、削峰、签收、事务、流量控制、最终一致性等一系列高性能架构所需功能。
当前使用较多的消息中间件有RabbitMQ、RocketMQ、ActiveMQ、Kafka、ZeroMQ、MetaMQ等，

下载安装

下载地址http://activemq.apache.org/components/classic/download/
在这里插入图片描述
这里以linux（CentOS7）为例:
下载 apache-activemq-5.15.11-bin.tar.gz 然后解压：

tar -zvxf apache-activemq-5.15.11-bin.tar.gz

解压后，进入bin目录，启动：
启动命令： ./activemq start

[root@wangdy opt]# cd apache-activemq-5.15.11
[root@wangdy apache-activemq-5.15.11]# cd bin/
[root@wangdy bin]# pwd
/opt/apache-activemq-5.15.11/bin
[root@wangdy bin]# ./activemq start
INFO: Loading '/opt/apache-activemq-5.15.11//bin/env'
INFO: Using java '/live/jdk8/bin/java'
INFO: Starting - inspect logfiles specified in logging.properties and log4j.properties to get details
INFO: pidfile created : '/opt/apache-activemq-5.15.11//data/activemq.pid' (pid '27875')
[root@wangdy bin]# ps -ef | grep activemq
root     27875     1 99 22:01 pts/0    00:00:07 /live/jdk8/bin/java -Xms64M -Xmx1G -Djava.util.logging.config.file=logging.properties -Djava.security.auth.login.config=/opt/apache-activemq-5.15.11//conf/login.config -Dcom.sun.management.jmxremote -Djava.awt.headless=true -Djava.io.tmpdir=/opt/apache-activemq-5.15.11//tmp -Dactivemq.classpath=/opt/apache-activemq-5.15.11//conf:/opt/apache-activemq-5.15.11//../lib/: -Dactivemq.home=/opt/apache-activemq-5.15.11/ -Dactivemq.base=/opt/apache-activemq-5.15.11/ -Dactivemq.conf=/opt/apache-activemq-5.15.11//conf -Dactivemq.data=/opt/apache-activemq-5.15.11//data -jar /opt/apache-activemq-5.15.11//bin/activemq.jar start
root     27921 27718  0 22:01 pts/0    00:00:00 grep --color=auto activemq

停止命令：

[root@wangdy bin]# ./activemq stop
INFO: Loading '/opt/apache-activemq-5.15.11//bin/env'
INFO: Using java '/live/jdk8/bin/java'
INFO: Waiting at least 30 seconds for regular process termination of pid '27215' : 
Java Runtime: Oracle Corporation 1.8.0_171 /live/jdk8/jre
  Heap sizes: current=62976k  free=61992k  max=932352k
    JVM args: -Xms64M -Xmx1G -Djava.util.logging.config.file=logging.properties -Djava.security.auth.login.config=/opt/apache-activemq-5.15.11//conf/login.config -Dactivemq.classpath=/opt/apache-activemq-5.15.11//conf:/opt/apache-activemq-5.15.11//../lib/: -Dactivemq.home=/opt/apache-activemq-5.15.11/ -Dactivemq.base=/opt/apache-activemq-5.15.11/ -Dactivemq.conf=/opt/apache-activemq-5.15.11//conf -Dactivemq.data=/opt/apache-activemq-5.15.11//data
Extensions classpath:
  [/opt/apache-activemq-5.15.11/lib,/opt/apache-activemq-5.15.11/lib/camel,/opt/apache-activemq-5.15.11/lib/optional,/opt/apache-activemq-5.15.11/lib/web,/opt/apache-activemq-5.15.11/lib/extra]
ACTIVEMQ_HOME: /opt/apache-activemq-5.15.11
ACTIVEMQ_BASE: /opt/apache-activemq-5.15.11
ACTIVEMQ_CONF: /opt/apache-activemq-5.15.11/conf
ACTIVEMQ_DATA: /opt/apache-activemq-5.15.11/data
Connecting to pid: 27215
Stopping broker: localhost
. TERMINATED