一、安装ActiveMQ
具体的安装步骤,请参考我的另一篇博文
二、新建spring boot工程,并加入JMS(ActiveMQ)依赖
三、工程结构
pom依赖如下:
1. <?xml version="1.0" encoding="UTF-8"?>
2. <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
3. xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
4. <modelVersion>4.0.0</modelVersion>
5.
6. <groupId>com.chhliu.springboot.jms</groupId>
7. <artifactId>springboot-jms</artifactId>
8. <version>0.0.1-SNAPSHOT</version>
9. <packaging>jar</packaging>
10.
11. <name>springboot-jms</name>
12. <description>Demo project for Spring Boot Jms</description>
13.
14. <parent>
15. <groupId>org.springframework.boot</groupId>
16. <artifactId>spring-boot-starter-parent</artifactId>
17. <version>1.4.3.RELEASE</version>
18. <relativePath/> <!-- lookup parent from repository -->
19. </parent>
20.
21. <properties>
22. <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
23. <project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
24. <java.version>1.7</java.version>
25. </properties>
26.
27. <dependencies>
28. <dependency>
29. <groupId>org.springframework.boot</groupId>
30. <artifactId>spring-boot-starter-activemq</artifactId>
31. </dependency>
32.
33. <dependency>
34. <groupId>org.springframework.boot</groupId>
35. <artifactId>spring-boot-starter-test</artifactId>
36. <scope>test</scope>
37. </dependency>
38. </dependencies>
39.
40. <build>
41. <plugins>
42. <plugin>
43. <groupId>org.springframework.boot</groupId>
44. <artifactId>spring-boot-maven-plugin</artifactId>
45. </plugin>
46. </plugins>
47. </build>
48. </project>
四、修改application.properties配置文件
1. ## URL of the ActiveMQ broker. Auto-generated by default. For instance `tcp://localhost:61616`
2. # failover:(tcp://localhost:61616,tcp://localhost:61617)
3. # tcp://localhost:61616
4. spring.activemq.broker-url=tcp://localhost:61616
5. spring.activemq.in-memory=true
6. spring.activemq.pool.enabled=false
五、消息生产者
1. package com.chhliu.springboot.jms;
2.
3. import javax.jms.Destination;
4.
5. import org.springframework.beans.factory.annotation.Autowired;
6. import org.springframework.jms.core.JmsMessagingTemplate;
7. import org.springframework.stereotype.Service;
8.
9. @Service("producer")
10. public class Producer {
11. @Autowired // 也可以注入JmsTemplate,JmsMessagingTemplate对JmsTemplate进行了封装
12. private JmsMessagingTemplate jmsTemplate;
13. // 发送消息,destination是发送到的队列,message是待发送的消息
14. public void sendMessage(Destination destination, final String message){
15. jmsTemplate.convertAndSend(destination, message);
16. }
17. }
六、消息消费者
1. package com.chhliu.springboot.jms;
2.
3. import org.springframework.jms.annotation.JmsListener;
4. import org.springframework.stereotype.Component;
5.
6. @Component
7. public class Consumer {
8. // 使用JmsListener配置消费者监听的队列,其中text是接收到的消息
9. @JmsListener(destination = "mytest.queue")
10. public void receiveQueue(String text) {
11. "Consumer收到的报文为:"+text);
12. }
13. }
消费者2的代码同上,注意,消息消费者的类上必须加上@Component,或者是@Service,这样的话,消息消费者类就会被委派给Listener类,原理类似于使用SessionAwareMessageListener以及MessageListenerAdapter来实现消息驱动POJO
七、测试
1. package com.chhliu.springboot.jms;
2.
3. import javax.jms.Destination;
4.
5. import org.apache.activemq.command.ActiveMQQueue;
6. import org.junit.Test;
7. import org.junit.runner.RunWith;
8. import org.springframework.beans.factory.annotation.Autowired;
9. import org.springframework.boot.test.context.SpringBootTest;
10. import org.springframework.test.context.junit4.SpringRunner;
11.
12. @RunWith(SpringRunner.class)
13. @SpringBootTest
14. public class SpringbootJmsApplicationTests {
15.
16. @Autowired
17. private Producer producer;
18.
19. @Test
20. public void contextLoads() throws InterruptedException {
21. new ActiveMQQueue("mytest.queue");
22.
23. for(int i=0; i<100; i++){
24. "myname is chhliu!!!");
25. }
26. }
27.
28. }
测试结果如下:
1. Consumer2收到的报文为:myname is chhliu!!!
2. Consumer收到的报文为:myname is chhliu!!!
3. Consumer2收到的报文为:myname is chhliu!!!
4. Consumer收到的报文为:myname is chhliu!!!
5. Consumer2收到的报文为:myname is chhliu!!!
6. Consumer收到的报文为:myname is chhliu!!!
7. Consumer2收到的报文为:myname is chhliu!!!
8. Consumer收到的报文为:myname is chhliu!!!
9. Consumer2收到的报文为:myname is chhliu!!!
10. Consumer收到的报文为:myname is chhliu!!!
11. Consumer2收到的报文为:myname is chhliu!!!
12. Consumer收到的报文为:myname is chhliu!!!
13. Consumer2收到的报文为:myname is chhliu!!!
经过上面的几个步骤,spring boot和Jms就基本上整合完成了,是不是使用起来很方便了!
八、实现双向队列
1、下面首先来对Consumer2这个消费者来进行下改造,代码如下:
1. package com.chhliu.springboot.jms;
2.
3. import org.springframework.jms.annotation.JmsListener;
4. import org.springframework.messaging.handler.annotation.SendTo;
5. import org.springframework.stereotype.Component;
6.
7. @Component
8. public class Consumer2 {
9.
10. @JmsListener(destination = "mytest.queue")
11. @SendTo("out.queue")
12. public String receiveQueue(String text) {
13. "Consumer2收到的报文为:"+text);
14. return "return message"+text;
15. }
16. }
从上面的代码可以看出,我们在receiveQueue方法上面多加了一个注解@SendTo("out.queue"),该注解的意思是将return回的值,再发送的"out.queue"队列中,下面我们再来跑一下前面的测试,在监控页面中,我们发现,"out.queue"队列中已经有内容了,如下:
进入Browse界面观看:
最后看下收到的具体信息:
我们发现,该队列中的消息,就是我们返回的值!
九、对Producer进行改造
通过上面的示例,我们现在对Producer进行改造,使其既能生产报文,又能消费队列中的报文,代码如下:
1. package com.chhliu.springboot.jms;
2.
3. import javax.jms.Destination;
4.
5. import org.springframework.beans.factory.annotation.Autowired;
6. import org.springframework.jms.annotation.JmsListener;
7. import org.springframework.jms.core.JmsMessagingTemplate;
8. import org.springframework.stereotype.Service;
9.
10. @Service("producer")
11. public class Producer {
12. @Autowired
13. private JmsMessagingTemplate jmsTemplate;
14.
15. public void sendMessage(Destination destination, final String message){
16. jmsTemplate.convertAndSend(destination, message);
17. }
18.
19. @JmsListener(destination="out.queue")
20. public void consumerMessage(String text){
21. "从out.queue队列收到的回复报文为:"+text);
22. }
23. }
测试结果如下:
1. 从out.queue队列收到的回复报文为:return messagemyname is chhliu!!!
2. Consumer收到的报文为:myname is chhliu!!!
3. Consumer2收到的报文为:myname is chhliu!!!
4. 从out.queue队列收到的回复报文为:return messagemyname is chhliu!!!
5. Consumer收到的报文为:myname is chhliu!!!
6. Consumer2收到的报文为:myname is chhliu!!!
7. 从out.queue队列收到的回复报文为:return messagemyname is chhliu!!!
8. Consumer收到的报文为:myname is chhliu!!!
9. Consumer2收到的报文为:myname is chhliu!!!
10. 从out.queue队列收到的回复报文为:return messagemyname is chhliu!!!