ActiveMQ实例2--Spring JMS发送消息

参考文章：http://my.oschina.net/xiaoxishan/blog/381209#OSC_h3_7

一，步骤参照参考文献

二、新建的项目

三、补充

web.xml

<?xml version="1.0" encoding="UTF-8"?>  
<web-app version="3.0" 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">  
    
    <display-name>activemq</display-name>

    <!-- Spring ApplicationContext配置文件的路径,可使用通配符，用于后面的Spring Context Loader -->
    <context-param>
        <param-name>contextConfigLocation</param-name>
        <param-value>
            classpath:applicationContext.xml
        </param-value>
    </context-param>

    <!--Spring ApplicationContext 载入 -->
    <listener>
        <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
    </listener>

    <!-- Spring MVC Servlet -->
    <servlet>
        <servlet-name>dispatcher</servlet-name>
        <servlet-class>com.alibaba.dubbo.remoting.http.servlet.DispatcherServlet</servlet-class>
        <init-param>
            <param-name>contextConfigLocation</param-name>
            <param-value>classpath:DispatcherServlet.xml</param-value>
        </init-param>
        <load-on-startup>1</load-on-startup>
    </servlet>
    <servlet-mapping>
        <servlet-name>dispatcher</servlet-name>
        <url-pattern>/</url-pattern>
    </servlet-mapping>

    
    <welcome-file-list>
        <welcome-file>index.html</welcome-file>
    </welcome-file-list>
</web-app>

applicationContext.xml

<?xml version="1.0" encoding="UTF-8"?>
<beans
        xmlns="http://www.springframework.org/schema/beans"
        xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
        xmlns:context="http://www.springframework.org/schema/context"
        xmlns:goldfish="http://www.fangdd.com/schema/goldfish"
        xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd
          http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context.xsd
          http://www.fangdd.com/schema/goldfish http://www.fangdd.com/schema/goldfish/goldfish-1.0.0.xsd">

      <context:annotation-config/>
      
    <context:component-scan base-package="com.zp.test" >
    </context:component-scan>
      

    <!-- 使用annotation 自动注册bean,并保证@Required,@Autowired的属性被注入 -->
    <context:component-scan base-package="com.activemqtest.*"/>

    <!-- 配置JMS连接工厂 -->
    <bean id="connectionFactory" class="org.apache.activemq.ActiveMQConnectionFactory">
        <property name="brokerURL" value="failover:(tcp://localhost:61616)" />
    </bean>
    
    <!-- 定义消息队列（Queue） -->
    <bean id="queueDestination" class="org.apache.activemq.command.ActiveMQQueue">
        <!-- 设置消息队列的名字 -->
        <constructor-arg>
            <value>queue1</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="queueDestination" />
        <property name="receiveTimeout" value="10000" />
    </bean>
    
    <!--queue消息生产者 -->
    <bean id="producerService" class="com.activemqtest.serviceImpl.ProducerServiceImpl">
        <property name="jmsTemplate" ref="jmsTemplate"></property>
    </bean>

    <!--queue消息消费者 -->
    <bean id="consumerService" class="com.activemqtest.serviceImpl.ConsumerServiceImpl">
        <property name="jmsTemplate" ref="jmsTemplate"></property>
    </bean>
    
    <!-- 定义消息队列（Queue），我们监听一个新的队列，queue2 -->
    <bean id="queueDestination2" class="org.apache.activemq.command.ActiveMQQueue">
        <!-- 设置消息队列的名字 -->
        <constructor-arg>
            <value>queue2</value>
        </constructor-arg>
    </bean>
    
    <!-- 配置消息队列监听者（Queue），代码下面给出，只有一个onMessage方法 -->
    <bean id="queueMessageListener" class="com.activemqtest.serviceImpl.QueueMessageListener" />
    
    <!-- 消息监听容器（Queue），配置连接工厂，监听的队列是queue2，监听器是上面定义的监听器 -->
    <bean id="jmsContainer"
        class="org.springframework.jms.listener.DefaultMessageListenerContainer">
        <property name="connectionFactory" ref="connectionFactory" />
        <property name="destination" ref="queueDestination2" />
        <property name="messageListener" ref="queueMessageListener" />
    </bean>
    <!-- 定义消息主题（Topic） -->
    <bean id="topicDestination" class="org.apache.activemq.command.ActiveMQTopic">
        <constructor-arg>
            <value>JY_topic</value>
        </constructor-arg>
    </bean>
    <!-- 配置JMS模板（Topic），pubSubDomain="true"-->
    <bean id="topicJmsTemplate" class="org.springframework.jms.core.JmsTemplate">
        <property name="connectionFactory" ref="connectionFactory" />
        <property name="defaultDestination" ref="topicDestination" />
        <property name="pubSubDomain" value="true" />
        <property name="receiveTimeout" value="10000" />
    </bean>
    <!--topic消息发布者 -->
    <bean id="topicProvider" class="com.activemqtest.serviceImpl.TopicProvider">
        <property name="topicJmsTemplate" ref="topicJmsTemplate"></property>
    </bean>
    <!-- 消息主题监听者 和 主题监听容器 可以配置多个，即多个订阅者 -->
    <!-- 消息主题监听者(Topic) -->
    <bean id="topicMessageListener" class="com.activemqtest.serviceImpl.TopicMessageListener" />
    <!-- 主题监听容器 （Topic） -->
    <bean id="topicJmsContainer"
        class="org.springframework.jms.listener.DefaultMessageListenerContainer">
        <property name="connectionFactory" ref="connectionFactory" />
        <property name="destination" ref="topicDestination" />
        <property name="messageListener" ref="topicMessageListener" />
    </bean>
    
    </beans>

DispactcherServlet.xml

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
       xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
       xmlns:context="http://www.springframework.org/schema/context"
       xmlns:mvc="http://www.springframework.org/schema/mvc"
       xsi:schemaLocation="http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc-4.0.xsd
        http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-4.0.xsd
        http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-4.0.xsd">
    
    <context:annotation-config />    
    <context:component-scan base-package="com.zp.test.controller">
        <context:include-filter type="annotation" expression="org.springframework.stereotype.Controller"/>
    </context:component-scan>
 </beans>

四、运行结果

因为运行了两遍，所以是双数

五、遇到的问题

问题：Java.lang.IllegalStateException: Failed to load ApplicationContext 

原因：因为applicationContext里的包没有与实际的包对应，或者是没有注解导入对应的变量