ActiveMQ简单介绍

ActiveMQ简单介绍消息通信的规范JMS,我们这篇博文介绍一款开源的JMS具体实现——ActiveMQ。ActiveMQ是一个易于使用的消息中间件。

消息中间件

我们简单的介绍一下消息中间件,对它有一个基本认识就好,消息中间件(MOM:Message Orient middleware)。

消息中间件有很多的用途和优点:

  1. 将数据从一个应用程序传送到另一个应用程序,或者从软件的一个模块传送到另外一个模块;
  2. 负责建立网络通信的通道,进行数据的可靠传送。
  3. 保证数据不重发,不丢失
  4. 能够实现跨平台操作,能够为不同操作系统上的软件集成技工数据传送服务

MQ

首先简单的介绍一下MQ,MQ英文名MessageQueue,中文名也就是大家用的消息队列,干嘛用的呢,说白了就是一个消息的接受和转发的容器,可用于消息推送。

ActiveMQ特性列表

多种语言和协议编写客户端。语言: Java, C, C++, C#, Ruby, Perl, Python, PHP。应用协议: OpenWire,Stomp REST,WS Notification,XMPP,AMQP
完全支持JMS1.1和J2EE 1.4规范 (持久化,XA消息,事务)
对Spring的支持,ActiveMQ可以很容易内嵌到使用Spring的系统里面去,而且也支持Spring2.0的特性
通过了常见J2EE服务器(如 Geronimo,JBoss 4, GlassFish,WebLogic)的测试,其中通过JCA 1.5 resource adaptors的配置,可以让ActiveMQ可以自动的部署到任何兼容J2EE 1.4 商业服务器上
支持多种传送协议:in-VM,TCP,SSL,NIO,UDP,JGroups,JXTA
支持通过JDBC和journal提供高速的消息持久化
从设计上保证了高性能的集群,客户端-服务器,点对点
支持Ajax
支持与Axis的整合
可以很容易得调用内嵌JMS provider,进行测试
什么情况下使用ActiveMQ?

多个项目之间集成
(1) 跨平台
(2) 多语言
(3) 多项目
降低系统间模块的耦合度,解耦
(1) 软件扩展性
系统前后端隔离
(1) 前后端隔离,屏蔽高安全区

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