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spring boot整合JMS(ActiveMQ實現)

一、安裝ActiveMQ

具體的安裝步驟,請參考我的另一篇博文:

二、新建spring boot工程,並加入JMS(ActiveMQ)依賴

三、工程結構

pom依賴如下:

<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
	xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
	<modelVersion>4.0.0</modelVersion>

	<groupId>com.chhliu.springboot.jms</groupId>
	<artifactId>springboot-jms</artifactId>
	<version>0.0.1-SNAPSHOT</version>
	<packaging>jar</packaging>

	<name>springboot-jms</name>
	<description>Demo project for Spring Boot Jms</description>

	<parent>
		<groupId>org.springframework.boot</groupId>
		<artifactId>spring-boot-starter-parent</artifactId>
		<version>1.4.3.RELEASE</version>
		<relativePath/> <!-- lookup parent from repository -->
	</parent>

	<properties>
		<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
		<project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
		<java.version>1.7</java.version>
	</properties>

	<dependencies>
		<dependency>
			<groupId>org.springframework.boot</groupId>
			<artifactId>spring-boot-starter-activemq</artifactId>
		</dependency>

		<dependency>
			<groupId>org.springframework.boot</groupId>
			<artifactId>spring-boot-starter-test</artifactId>
			<scope>test</scope>
		</dependency>
	</dependencies>

	<build>
		<plugins>
			<plugin>
				<groupId>org.springframework.boot</groupId>
				<artifactId>spring-boot-maven-plugin</artifactId>
			</plugin>
		</plugins>
	</build>
</project>
四、修改application.properties配置檔案
## URL of the ActiveMQ broker. Auto-generated by default. For instance `tcp://localhost:61616`
# failover:(tcp://localhost:61616,tcp://localhost:61617)
# tcp://localhost:61616
spring.activemq.broker-url=tcp://localhost:61616
spring.activemq.in-memory=true
spring.activemq.pool.enabled=false //如果此處設定為true,需要加如下的依賴包,否則會自動配置失敗,報JmsMessagingTemplate注入失敗
<dependency>
			<groupId>org.apache.activemq</groupId>
			<artifactId>activemq-pool</artifactId>
			<!-- <version>5.7.0</version> -->
		</dependency>


五、訊息生產者

package com.chhliu.springboot.jms;

import javax.jms.Destination;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.jms.core.JmsMessagingTemplate;
import org.springframework.stereotype.Service;

@Service("producer")
public class Producer {
	@Autowired // 也可以注入JmsTemplate,JmsMessagingTemplate對JmsTemplate進行了封裝
	private JmsMessagingTemplate jmsTemplate;
	// 傳送訊息,destination是傳送到的佇列,message是待發送的訊息
	public void sendMessage(Destination destination, final String message){
		jmsTemplate.convertAndSend(destination, message);
	}
}
六、訊息消費者
package com.chhliu.springboot.jms;

import org.springframework.jms.annotation.JmsListener;
import org.springframework.stereotype.Component;

@Component
public class Consumer {
        // 使用JmsListener配置消費者監聽的佇列,其中text是接收到的訊息
	@JmsListener(destination = "mytest.queue")
	public void receiveQueue(String text) {
		System.out.println("Consumer收到的報文為:"+text);
	}
}
消費者2的程式碼同上,注意,訊息消費者的類上必須加上@Component,或者是@Service,這樣的話,訊息消費者類就會被委派給Listener類,原理類似於使用SessionAwareMessageListener以及MessageListenerAdapter來實現訊息驅動POJO

七、測試

package com.chhliu.springboot.jms;

import javax.jms.Destination;

import org.apache.activemq.command.ActiveMQQueue;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.boot.test.context.SpringBootTest;
import org.springframework.test.context.junit4.SpringRunner;

@RunWith(SpringRunner.class)
@SpringBootTest
public class SpringbootJmsApplicationTests {
	
	@Autowired
	private Producer producer;
	
	@Test
	public void contextLoads() throws InterruptedException {
		Destination destination = new ActiveMQQueue("mytest.queue");
		
		for(int i=0; i<100; i++){
			producer.sendMessage(destination, "myname is chhliu!!!");
		}
	}

}
測試結果如下:
Consumer2收到的報文為:myname is chhliu!!!
Consumer收到的報文為:myname is chhliu!!!
Consumer2收到的報文為:myname is chhliu!!!
Consumer收到的報文為:myname is chhliu!!!
Consumer2收到的報文為:myname is chhliu!!!
Consumer收到的報文為:myname is chhliu!!!
Consumer2收到的報文為:myname is chhliu!!!
Consumer收到的報文為:myname is chhliu!!!
Consumer2收到的報文為:myname is chhliu!!!
Consumer收到的報文為:myname is chhliu!!!
Consumer2收到的報文為:myname is chhliu!!!
Consumer收到的報文為:myname is chhliu!!!
Consumer2收到的報文為:myname is chhliu!!!

經過上面的幾個步驟,spring boot和Jms就基本上整合完成了,是不是使用起來很方便了!

八、實現雙向佇列

1、下面首先來對Consumer2這個消費者來進行下改造,程式碼如下:

package com.chhliu.springboot.jms;

import org.springframework.jms.annotation.JmsListener;
import org.springframework.messaging.handler.annotation.SendTo;
import org.springframework.stereotype.Component;

@Component
public class Consumer2 {

	@JmsListener(destination = "mytest.queue")
	@SendTo("out.queue")
	public String receiveQueue(String text) {
		System.out.println("Consumer2收到的報文為:"+text);
		return "return message"+text;
	}
}
從上面的程式碼可以看出,我們在receiveQueue方法上面多加了一個註解@SendTo("out.queue"),該註解的意思是將return回的值,再發送的"out.queue"佇列中,下面我們再來跑一下前面的測試,在監控頁面中,我們發現,"out.queue"佇列中已經有內容了,如下:

進入Browse介面觀看:

最後看下收到的具體資訊:

我們發現,該佇列中的訊息,就是我們返回的值!

九、對Producer進行改造

通過上面的示例,我們現在對Producer進行改造,使其既能生產報文,又能消費佇列中的報文,程式碼如下:

package com.chhliu.springboot.jms;

import javax.jms.Destination;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.jms.annotation.JmsListener;
import org.springframework.jms.core.JmsMessagingTemplate;
import org.springframework.stereotype.Service;

@Service("producer")
public class Producer {
	@Autowired
	private JmsMessagingTemplate jmsTemplate;
	
	public void sendMessage(Destination destination, final String message){
		jmsTemplate.convertAndSend(destination, message);
	}
	
	@JmsListener(destination="out.queue")
	public void consumerMessage(String text){
		System.out.println("從out.queue佇列收到的回覆報文為:"+text);
	}
}
測試結果如下:
從out.queue佇列收到的回覆報文為:return messagemyname is chhliu!!!
Consumer收到的報文為:myname is chhliu!!!
Consumer2收到的報文為:myname is chhliu!!!
從out.queue佇列收到的回覆報文為:return messagemyname is chhliu!!!
Consumer收到的報文為:myname is chhliu!!!
Consumer2收到的報文為:myname is chhliu!!!
從out.queue佇列收到的回覆報文為:return messagemyname is chhliu!!!
Consumer收到的報文為:myname is chhliu!!!
Consumer2收到的報文為:myname is chhliu!!!
從out.queue佇列收到的回覆報文為:return messagemyname is chhliu!!!