spring 消息列队

spring-amqp结合使用rabbitmq

Spring AMQP提供了org.springframework.amqp.core.AmqpTemplate来发送与接收消息。AMQP模板实现支持发送与接收POJOs而非javax.jms.Message实例。他们还提供了一种方式来自定义用于编排对象的MessageConverter。Spring与JMS用户会发现JmsTemplate与新的AmqpTemplate之间的相似性。

下面的代码片段介绍了如何联合使用Spring AMQP与RabbitMQ处理同步消息。RabbitMQ是VMware的产品，并且是官方Spring AMQP示例中所用的默认AMQP实现。

Maven项目添加依赖包spring-rabbit

<dependencies>    <dependency>        <groupId>org.springframework.amqp</groupId>        <artifactId>spring-rabbit</artifactId>        <version>1.3.5.RELEASE</version>    </dependency></dependencies>

just Java

public static void main(final String... args) throws Exception {    ConnectionFactory cf = new CachingConnectionFactory();    // set up the queue, exchange, binding on the broker    RabbitAdmin admin = new RabbitAdmin(cf);    Queue queue = new Queue("myQueue");    admin.declareQueue(queue);    TopicExchange exchange = new TopicExchange("myExchange");    admin.declareExchange(exchange);    admin.declareBinding(        BindingBuilder.bind(queue).to(exchange).with("foo.*"));    // set up the listener and container    SimpleMessageListenerContainer container =            new SimpleMessageListenerContainer(cf);    Object listener = new Object() {        public void handleMessage(String foo) {            System.out.println(foo);        }    };    MessageListenerAdapter adapter = new MessageListenerAdapter(listener);    container.setMessageListener(adapter);    container.setQueueNames("myQueue");    container.start();    // send something    RabbitTemplate template = new RabbitTemplate(cf);    template.convertAndSend("myExchange", "foo.bar", "Hello, world!");    Thread.sleep(1000);    container.stop();}

Or, the Spring way

1.applicationContext-amqp.xml

<rabbit:connection-factory id="connectionFactory" /><rabbit:template id="amqpTemplate" connection-factory="connectionFactory"    exchange="myExchange" routing-key="foo.bar"/><rabbit:admin connection-factory="connectionFactory" /><rabbit:queue name="myQueue" /><rabbit:topic-exchange name="myExchange">    <rabbit:bindings>        <rabbit:binding queue="myQueue" pattern="foo.*" />    </rabbit:bindings></rabbit:topic-exchange><rabbit:listener-container connection-factory="connectionFactory">    <rabbit:listener ref="foo" method="listen" queue-names="myQueue" /></rabbit:listener-container><bean id="foo" class="foo.Foo" />

2.Method Foo

public class Foo {    public void listen(String foo) {        System.out.println(foo);    }}

3.Method Main

public static void main(final String... args) throws Exception {    AbstractApplicationContext ctx =        new ClassPathXmlApplicationContext("applicationContext-amqp.xml");    RabbitTemplate template = ctx.getBean(RabbitTemplate.class);    template.convertAndSend("Hello, world!");    Thread.sleep(1000);    ctx.destroy();}