ActiveMQ 5.x数据库持久化配置和嵌入式Broker的使用

1.持久化配置

ActiveMQ 5.x以上实现数据库持久化配置：

<beans  xmlns="http://www.springframework.org/schema/beans"  xmlns:amq="http://activemq.apache.org/schema/core"  xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"  xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-2.0.xsd  http://activemq.apache.org/schema/core http://activemq.apache.org/schema/core/activemq-core.xsd">  <bean class="org.springframework.beans.factory.config.PropertyPlaceholderConfigurer"/>  <broker useJmx="true" xmlns="http://activemq.apache.org/schema/core">    <networkConnectors>      <!--       <networkConnector uri="multicast://default?initialReconnectDelay=100" />      <networkConnector uri="static://(tcp://localhost:61616)" />       -->    </networkConnectors>    <persistenceFactory>      <journalPersistenceAdapterFactory journalLogFiles="5" dataDirectory="${basedir}/target" />             <!-- To use a different dataSource, use the following syntax : -->      <!--       <journalPersistenceAdapterFactory journalLogFiles="5" dataDirectory="${basedir}/activemq-data" dataSource="#mysql-ds"/>       -->    </persistenceFactory>    <transportConnectors>      <transportConnector uri="tcp://localhost:61636" />    </transportConnectors>  </broker>  <!-- MySql DataSource Sample Setup -->  <!--   <bean id="mysql-ds" class="org.apache.commons.dbcp2.BasicDataSource" destroy-method="close">    <property name="driverClassName" value="com.mysql.jdbc.Driver"/>    <property name="url" value="jdbc:mysql://localhost/activemq?relaxAutoCommit=true"/>    <property name="username" value="activemq"/>    <property name="password" value="activemq"/>    <property name="poolPreparedStatements" value="true"/>  </bean>  --> </beans>

From：http://activemq.apache.org/persistence.html

2.Broker的使用

在许多消息拓扑有JMS代理(服务器端)和JMS客户端。通常是有意义的部署一个Broker在您的JVM。这允许您优化了网络跃点;使JMS作为高效的网络纯RMI,但通常的位置独立性JMS的特性,可靠性、负载平衡等。有多种方法嵌入一个Broker在ActiveMQ取决于如果您使用的是Java,Spring,XBean ActiveMQConnectionFactory或使用ActiveMQConnectionFactory。

下面的Java代码将创建一个嵌入式broker；

BrokerService broker = new BrokerService(); // configure the brokerbroker.addConnector("tcp://localhost:61616"); broker.start();

如果你想延迟绑定传输连接器的一部分start(),有用的时候start()将阻塞等待一个存储锁(如一个slave节点启动),您可以使用下面的代码；

BrokerService broker = new BrokerService(); TransportConnector connector = new TransportConnector();connector.setUri(new URI("tcp://localhost:61616"));broker.addConnector(connector);broker.start();

在同一个JVM客户可以使用vm:/ /transport连接到嵌入式broker,同时外部客户可以使用tcp://protocol
如果你有超过一个嵌入式代理,确保你给他们一个唯一的名称,如:

BrokerService broker = new BrokerService();// configure the brokerbroker.setBrokerName("fred");broker.addConnector("tcp://localhost:61616");broker.start();

然后如果你想连接到代理名叫“fred”在相同的JVM中,您可以通过使用uri vm:/ /fred可以通过应用程序代码如完全配置代理;

BrokerService broker = new BrokerService();broker.setBrokerName("fred");broker.setUseShutdownHook(false);//Add pluginbroker.setPlugins(new BrokerPlugin[]{new JaasAuthenticationPlugin()});//Add a network connectionNetworkConnector connector = answer.addNetworkConnector("static://"+"tcp://somehost:61616");connector.setDuplex(true);broker.addConnector("tcp://localhost:61616");broker.start();

BrokerFactory

BrokerService broker = BrokerFactory.createBroker(new URI(someURI));

URI scheme

Example

Description

xbean:

xbean:activemq.xml

Searches the classpath (and file system) for an XML document with the given URI (activemq.xml in this case) which will then be used as theXml Configuration

broker:

broker:tcp://localhost:61616

Uses the Broker Configuration URI to confgure the broker

Spring

<bean id="broker" class="org.apache.activemq.xbean.BrokerFactoryBean">    <property name="config" value="classpath:org/apache/activemq/xbean/activemq.xml" />    <property name="start" value="true" />  </bean>

XBean

<beans   xmlns="http://www.springframework.org/schema/beans"  xmlns:amq="http://activemq.apache.org/schema/core"  xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"  xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-2.0.xsd  http://activemq.apache.org/schema/core http://activemq.apache.org/schema/core/activemq-core.xsd">   <bean class="org.springframework.beans.factory.config.PropertyPlaceholderConfigurer"/>   <broker useJmx="true" xmlns="http://activemq.apache.org/schema/core">     <persistenceFactory>      <kahaDB directory="${basedir}/target" />    </persistenceFactory>     <transportConnectors>      <transportConnector uri="tcp://localhost:61636" />    </transportConnectors>   </broker></beans>

Spring 2.0 Example

<beans   xmlns="http://www.springframework.org/schema/beans"  xmlns:amq="http://activemq.apache.org/schema/core"  xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"  xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-2.0.xsd  http://activemq.apache.org/schema/core http://activemq.apache.org/schema/core/activemq-core.xsd">     <!--  lets create an embedded ActiveMQ Broker -->  <amq:broker useJmx="false" persistent="false">    <amq:transportConnectors>      <amq:transportConnector uri="tcp://localhost:0" />    </amq:transportConnectors>  </amq:broker>    <!--  ActiveMQ destinations to use  -->  <amq:queue id="destination"  physicalName="org.apache.activemq.spring.Test.spring.embedded"/>   <!-- JMS ConnectionFactory to use, configuring the embedded broker using XML -->  <amq:connectionFactory id="jmsFactory" brokerURL="vm://localhost"/>      <!-- Spring JMS Template -->  <bean id="myJmsTemplate" class="org.springframework.jms.core.JmsTemplate">    <property name="connectionFactory">      <!-- lets wrap in a pool to avoid creating a connection per send -->      <bean class="org.springframework.jms.connection.SingleConnectionFactory">        <property name="targetConnectionFactory">          <ref local="jmsFactory" />        </property>      </bean>    </property>  </bean>   <bean id="consumerJmsTemplate" class="org.springframework.jms.core.JmsTemplate">    <property name="connectionFactory" ref="jmsFactory"/>  </bean>   <!-- a sample POJO which uses a Spring JmsTemplate -->  <bean id="producer" class="org.apache.activemq.spring.SpringProducer">    <property name="template">      <ref bean="myJmsTemplate"></ref>    </property>     <property name="destination">      <ref bean="destination" />    </property>     <property name="messageCount">      <value>10</value>    </property>  </bean>   <!-- a sample POJO consumer -->  <bean id="consumer" class="org.apache.activemq.spring.SpringConsumer">    <property name="template" ref="consumerJmsTemplate"/>    <property name="destination" ref="destination"/>  </bean> </beans>

ActiveMQConnectionFactory

1.嵌入式broker也可以使用一个ActiveMQConnectionFactory创建和使用一个vm连接器作为一个uri:

ActiveMQConnectionFactory cf = new ActiveMQConnectionFactory("vm://localhost?broker.persistent=false");

2.使用查询参数”broker.<property>”来配置代理,<property>匹配BrokerService bean属性。
broker将在创建第一个创建连接,你可以关掉自动创建通过设置在VM创建属性传输错误:

ActiveMQConnectionFactory cf = new ActiveMQConnectionFactory("vm://localhost?create=false");

From:http://activemq.apache.org/how-do-i-embed-a-broker-inside-a-connection.html
更多经典文章参考：http://topmanopensource.iteye.com/category/64329