（转）RabbitMQ学习之spring整合发送异步消息(注解实现)

http://blog.csdn.net/zhu_tianwei/article/details/40919249

实现使用Exchange类型为DirectExchange. routingkey的名称默认为Queue的名称。注解实现异步发送消息。

1.生产者配置ProducerConfiguration.Java

1. package cn.slimsmart.rabbitmq.demo.spring.async;
2. import java.util.concurrent.atomic.AtomicInteger;
3. import org.springframework.amqp.rabbit.connection.CachingConnectionFactory;
4. import org.springframework.amqp.rabbit.connection.ConnectionFactory;
5. import org.springframework.amqp.rabbit.core.RabbitTemplate;
6. import org.springframework.beans.factory.annotation.Autowired;
7. import org.springframework.beans.factory.config.BeanPostProcessor;
8. import org.springframework.context.annotation.Bean;
9. import org.springframework.context.annotation.Configuration;
10. import org.springframework.scheduling.annotation.Scheduled;
11. import org.springframework.scheduling.annotation.ScheduledAnnotationBeanPostProcessor;
12. import com.rabbitmq.client.AMQP;
13. @Configuration
14. public class ProducerConfiguration {
15. // 指定队列名称 routingkey的名称默认为Queue的名称，使用Exchange类型为DirectExchange
16. protected final String helloWorldQueueName = "spring-queue-async";
17. // 创建链接
18. @Bean
19. public ConnectionFactory connectionFactory() {
20. CachingConnectionFactory connectionFactory = new CachingConnectionFactory("192.168.36.102");
21. connectionFactory.setUsername("admin");
22. connectionFactory.setPassword("admin");
23. connectionFactory.setPort(AMQP.PROTOCOL.PORT);
24. return connectionFactory;
25. }
26. // 创建rabbitTemplate 消息模板类
27. @Bean
28. public RabbitTemplate rabbitTemplate() {
29. RabbitTemplate template = new RabbitTemplate(connectionFactory());
30. template.setRoutingKey(this.helloWorldQueueName);
31. return template;
32. }
33. //创建一个调度
34. @Bean
35. public ScheduledProducer scheduledProducer() {
36. return new ScheduledProducer();
37. }
38. @Bean
39. public BeanPostProcessor postProcessor() {
40. return new ScheduledAnnotationBeanPostProcessor();
41. }
42. static class ScheduledProducer {
43. @Autowired
44. private volatile RabbitTemplate rabbitTemplate;
45. //自增整数
46. private final AtomicInteger counter = new AtomicInteger();
47. /**
48. * 每3秒发送一条消息
49. *
50. * Spring3中加强了注解的使用，其中计划任务也得到了增强，现在创建一个计划任务只需要两步就完成了：
51. 创建一个Java类，添加一个无参无返回值的方法，在方法上用@Scheduled注解修饰一下；
52. 在Spring配置文件中添加三个<task:**** />节点；
53. 参考：http://zywang.iteye.com/blog/949123
54. */
55. @Scheduled(fixedRate = 3000)
56. public void sendMessage() {
57. rabbitTemplate.convertAndSend("Hello World " + counter.incrementAndGet());
58. }
59. }
60. }

2.生产者启动类Producer,java

1. package cn.slimsmart.rabbitmq.demo.spring.async;
2. import org.springframework.context.annotation.AnnotationConfigApplicationContext;
3. public class Producer {
4. public static void main(String[] args) {
5. new AnnotationConfigApplicationContext(ProducerConfiguration.class);
6. }
7. }

3.接收消息处理类ReceiveMsgHandler.java

1. package cn.slimsmart.rabbitmq.demo.spring.async;
2. public class ReceiveMsgHandler {
3. public void handleMessage(String text) {
4. System.out.println("Received: " + text);
5. }
6. }

4.消费者配置ConsumerConfiguration

1. package cn.slimsmart.rabbitmq.demo.spring.async;
2. import org.springframework.amqp.core.AmqpAdmin;
3. import org.springframework.amqp.core.Queue;
4. import org.springframework.amqp.rabbit.connection.CachingConnectionFactory;
5. import org.springframework.amqp.rabbit.connection.ConnectionFactory;
6. import org.springframework.amqp.rabbit.core.RabbitAdmin;
7. import org.springframework.amqp.rabbit.core.RabbitTemplate;
8. import org.springframework.amqp.rabbit.listener.SimpleMessageListenerContainer;
9. import org.springframework.amqp.rabbit.listener.adapter.MessageListenerAdapter;
10. import org.springframework.context.annotation.Bean;
11. import org.springframework.context.annotation.Configuration;
12. import com.rabbitmq.client.AMQP;
13. @Configuration
14. public class ConsumerConfiguration {
15. // 指定队列名称 routingkey的名称默认为Queue的名称，使用Exchange类型为DirectExchange
16. protected String springQueueDemo = "spring-queue-async";
17. // 创建链接
18. @Bean
19. public ConnectionFactory connectionFactory() {
20. CachingConnectionFactory connectionFactory = new CachingConnectionFactory(
21. "192.168.36.102");
22. connectionFactory.setUsername("admin");
23. connectionFactory.setPassword("admin");
24. connectionFactory.setPort(AMQP.PROTOCOL.PORT);
25. return connectionFactory;
26. }
27. // 创建rabbitAdmin 代理类
28. @Bean
29. public AmqpAdmin amqpAdmin() {
30. return new RabbitAdmin(connectionFactory());
31. }
32. // 创建rabbitTemplate 消息模板类
33. @Bean
34. public RabbitTemplate rabbitTemplate() {
35. RabbitTemplate template = new RabbitTemplate(connectionFactory());
36. // The routing key is set to the name of the queue by the broker for the
37. // default exchange.
38. template.setRoutingKey(this.springQueueDemo);
39. // Where we will synchronously receive messages from
40. template.setQueue(this.springQueueDemo);
41. return template;
42. }
43. //
44. // Every queue is bound to the default direct exchange
45. public Queue helloWorldQueue() {
46. return new Queue(this.springQueueDemo);
47. }
48. @Bean
49. public SimpleMessageListenerContainer listenerContainer() {
50. SimpleMessageListenerContainer container = new SimpleMessageListenerContainer();
51. container.setConnectionFactory(connectionFactory());
52. container.setQueueNames(this.springQueueDemo);
53. container.setMessageListener(new MessageListenerAdapter(
54. new ReceiveMsgHandler()));
55. return container;
56. }
57. }

5.消费者启动类Consumer.java

1. package cn.slimsmart.rabbitmq.demo.spring.async;
2. import org.springframework.context.annotation.AnnotationConfigApplicationContext;
3. public class Consumer {
4. public static void main(String[] args) {
5. new AnnotationConfigApplicationContext(ConsumerConfiguration.class);
6. }
7. }

启动接收消息，再发送消息

1. Received: Hello World 1
2. Received: Hello World 2
3. Received: Hello World 3
4. Received: Hello World 4
5. Received: Hello World 5
6. Received: Hello World 6
7. Received: Hello World 7
8. ......

若报spring-queue-async消息队列不存在，请在控制台添加。