1、概述

消息服务：一个中间件，用于解决两个或多个程序之间的耦合，底层由Java 实现。
优势：异步、可靠
消息模型：点对点，发布/订阅
JMS中的对象

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

在接下来的这篇博客中，我会和大家一起来整合Spring 和ActiveMq，这篇博文,我们基于Spring+JMS+ActiveMQ+Tomcat，实现了Point-To-Point的异步队列消息和PUB/SUB（发布/订阅）模型，简单实例，不包含任何业务。

2、项目结构

image.png

Spring 核心依赖 ActiveMq core和pool java servlet 相关依赖 fastjson依赖

<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
<modelVersion>4.0.0</modelVersion>
<groupId>com.quwei.activeMQ</groupId>
<artifactId>activeMQ-test</artifactId>
<packaging>war</packaging>
<version>1.0-SNAPSHOT</version>
<name>activeMQ-test Maven Webapp</name>
<url>http://maven.apache.org</url>

<properties>
<springframework>4.0.0.RELEASE</springframework>
</properties>

<dependencies>
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>3.8.1</version>
<scope>test</scope>
</dependency>

<!--spring对activemq的支持-->
<!-- JSP相关 -->
<dependency>
  <groupId>jstl</groupId>
  <artifactId>jstl</artifactId>
  <version>1.2</version>
</dependency>
<dependency>
  <groupId>javax.servlet</groupId>
  <artifactId>servlet-api</artifactId>
  <scope>provided</scope>
  <version>2.5</version>
</dependency>

<!-- spring -->
<dependency>
  <groupId>org.springframework</groupId>
  <artifactId>spring-core</artifactId>
  <version>${springframework}</version>
</dependency>
<dependency>
  <groupId>org.springframework</groupId>
  <artifactId>spring-context</artifactId>
  <version>${springframework}</version>
</dependency>
<dependency>
  <groupId>org.springframework</groupId>
  <artifactId>spring-tx</artifactId>
  <version>${springframework}</version>
</dependency>
<dependency>
  <groupId>org.springframework</groupId>
  <artifactId>spring-webmvc</artifactId>
  <version>${springframework}</version>
</dependency>

<!-- https://mvnrepository.com/artifact/org.springframework/spring-jms -->
<dependency>
  <groupId>org.springframework</groupId>
  <artifactId>spring-jms</artifactId>
  <version>${springframework}</version>
</dependency>


<!-- xbean 如<amq:connectionFactory /> -->
<dependency>
  <groupId>org.apache.xbean</groupId>
  <artifactId>xbean-spring</artifactId>
  <version>3.16</version>
</dependency>

<!-- activemq -->
<dependency>
  <groupId>org.apache.activemq</groupId>
  <artifactId>activemq-core</artifactId>
  <version>5.7.0</version>
</dependency>
<dependency>
  <groupId>org.apache.activemq</groupId>
  <artifactId>activemq-pool</artifactId>
  <version>5.12.1</version>
</dependency>

<!--添加springmvc对fastjson的支持-->
<dependency>
  <groupId>com.alibaba</groupId>
  <artifactId>fastjson</artifactId>
  <version>1.2.38</version>
</dependency>

</dependencies>
<build>
<finalName>activeMQ-test</finalName>
</build>
</project>

spring配置，这里只是测试，所以spring只有一个扫包，springmvc也只有常用配置

spring配置

image.png

springmvc配置

image.png

activemq配置

<context:component-scan base-package="com.quwei" />
<mvc:annotation-driven />

<amq:connectionFactory id="amqConnectionFactory"
                       brokerURL="tcp://127.0.0.1:61616"
                       userName="admin"
                       password="admin" />

<!-- 配置JMS连接工长 -->
<bean id="connectionFactory"
      class="org.springframework.jms.connection.CachingConnectionFactory">
    <constructor-arg ref="amqConnectionFactory" />
    <property name="sessionCacheSize" value="100" />
</bean>

<!-- 定义消息队列（Queue） -->
<bean id="demoQueueDestination" class="org.apache.activemq.command.ActiveMQQueue">
    <!-- 设置消息队列的名字 -->
    <constructor-arg>
        <value>Jaycekon</value>
    </constructor-arg>
</bean>

<!-- 配置JMS模板（Queue），Spring提供的JMS工具类，它发送、接收消息。 -->
<bean id="jmsTemplate" class="org.springframework.jms.core.JmsTemplate">
    <property name="connectionFactory" ref="connectionFactory" />
    <property name="defaultDestination" ref="demoQueueDestination" />
    <property name="receiveTimeout" value="10000" />
    <!-- true是topic，false是queue，默认是false，此处显示写出false -->
    <property name="pubSubDomain" value="false" />
</bean>

</beans>

tomcat配置

<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns="http://java.sun.com/xml/ns/javaee"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://java.sun.com/xml/ns/javaee

http://java.sun.com/xml/ns/javaee/web-app_3_0.xsd"

     version="3.0">

<display-name>Archetype Created Web Application</display-name>

<context-param>
<param-name>contextConfigLocation</param-name>
<param-value>
classpath:applicationContext*.xml;
</param-value>
</context-param>

<listener>
<listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
</listener>

<servlet>
<servlet-name>springMVC</servlet-name>
<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
<init-param>
<param-name>contextConfigLocation</param-name>
<param-value>classpath:spring-mvc.xml</param-value>
</init-param>
<load-on-startup>1</load-on-startup>
</servlet>
<servlet-mapping>
<servlet-name>springMVC</servlet-name>
<url-pattern>*.do</url-pattern>
</servlet-mapping>

<filter>
<filter-name>characterEncodingFilter</filter-name>
<filter-class>org.springframework.web.filter.CharacterEncodingFilter</filter-class>
<init-param>
<param-name>encoding</param-name>
<param-value>UTF-8</param-value>
</init-param>
<init-param>
<param-name>forceEncoding</param-name>
<param-value>true</param-value>
</init-param>
</filter>
<filter-mapping>
<filter-name>characterEncodingFilter</filter-name>
<url-pattern>/*</url-pattern>
</filter-mapping>

</web-app>

3.代码

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