分布式-信息方式-ActiveMQ构建应用

ActivemQ构建应用
Broker:相当于一个 ActiveMQ服务器实例
命令行启动参数示例如下:
1: activemq start:使用默认的 actived.xml来启动
2: activemq start xbean:file: ../onf/ actived-2.xml:使用指定的配置文件
来启动
3:如果不指定file,也就是 xbean: activemq-2.xml,那么xml必须在 classpath下面
用 ActiveMQ米构建Java应用
这里主要将用 Activemq broken作为独立的消息服务器来构建JAVA应用
ActiveMQ也支持在vm中通信基于嵌入式的 broker,能够无缝的集成其它Java应用

■嵌入式 Broker启动
1: Broker service启动 broker,示例如下:

BrokerService broker=new BrokerService();
broker.setUseJmx(true);
broker.addConnector(“tcp://localhost:61616”);
broker.start();

package com.mq.test.activeMQ;import java.net.URI;import org.apache.activemq.broker.BrokerFactory;
import org.apache.activemq.broker.BrokerService;
import org.omg.CORBA.portable.ApplicationException;
import org.springframework.context.ApplicationContext;
import org.springframework.context.support.ClassPathXmlApplicationContext;public class InnerBroker {
    public static void main(String[] args) throws Exception {
        BrokerService  broker=new BrokerService();
        broker.setUseJmx(true);
        broker.addConnector("tcp://localhost:61616");
        broker.start();    }
}

2: BrokerFactory启动 broker,示例如下:

String Uri =”properties:broker.properties”;
BrokerService broker1 =BrokerFactory.createBroker(new URI(Uri));
broker1.addConnector(“tcp://localhost:61616”);
broker1.start();

broker.properties

useJmx=true
persistent=false
brokerName=cheese

package com.mq.test.activeMQ;import java.net.URI;import org.apache.activemq.broker.BrokerFactory;
import org.apache.activemq.broker.BrokerService;
import org.omg.CORBA.portable.ApplicationException;
import org.springframework.context.ApplicationContext;
import org.springframework.context.support.ClassPathXmlApplicationContext;public class InnerBroker {
    public static void main(String[] args) throws Exception {
                String Uri ="properties:broker.properties";
                BrokerService broker1 =BrokerFactory.createBroker(new URI(Uri));
                broker1.addConnector("tcp://localhost:61616");
                broker1.start();    }
}

3:利用Spring集成Broker,Spring的配置文件如下：

<bean id=”broker” class=”org.apache.activemq.broker.BrokerService” init-method=”start” destroy-method=”stop”>
<property name=”brokerName” value=”myBroker” />
<property name=”persistent” value=”false”></property>
<property name=”transportConnectorURIs” >
<list>
<value>tcp://localhost:61616</value>
</list>
</property>
</bean>

package com.mq.test.activeMQ;import java.net.URI;import org.apache.activemq.broker.BrokerFactory;
import org.apache.activemq.broker.BrokerService;
import org.omg.CORBA.portable.ApplicationException;
import org.springframework.context.ApplicationContext;
import org.springframework.context.support.ClassPathXmlApplicationContext;public class InnerBroker {
    public static void main(String[] args) throws Exception { ApplicationContext  ctx =new  ClassPathXmlApplicationContext("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:p="http://www.springframework.org/schema/p"
    xmlns:context="http://www.springframework.org/schema/context"
    xmlns:aop="http://www.springframework.org/schema/aop" xmlns:tx="http://www.springframework.org/schema/tx"
    xsi:schemaLocation="http://www.springframework.org/schema/beans
           http://www.springframework.org/schema/beans/spring-beans-3.2.xsd
           http://www.springframework.org/schema/aop
           http://www.springframework.org/schema/aop/spring-aop-3.2.xsd
           http://www.springframework.org/schema/tx
           http://www.springframework.org/schema/tx/spring-tx-3.2.xsd
           http://www.springframework.org/schema/context
           http://www.springframework.org/schema/context/spring-context-3.2.xsd"
    default-autowire="byName" default-lazy-init="false">    <bean  id="broker" class="org.apache.activemq.broker.BrokerService" init-method="start" destroy-method="stop">
         <property name="brokerName" value="myBroker" />
         <property name="persistent" value="false"></property>
         <property name="transportConnectorURIs"  >
                 <list>
                      <value>tcp://localhost:61616</value>
                 </list>
         </property>
    </bean></beans>

或者配置 BrokerFactoryBean,示例如下:
<beans>
<bean id=broker class=”org. apache. activemq. xbean. BrokerFactoryBean”>
<Property name=”config” value=”resources/activemq-simple.xml”/>
<property name=”start” value=”true”/>
</bean>
</beans>
■ ActiveMQ的启动:
1:可以通过在应用程序中以编码的方式启动 broker,例如: broker. start(
如果需要启动多个 broker,那么需要为 broker设置一个名字。例如
BrokerService broker= new BrokerService();
broker.setName(“fred”)
broker.addConnector(“tcp: //localhost: 61616”)
broker.start
2:还可以通过 spring来启动,前面已经演示过了

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