Spring學習筆記 - Spring 整合 JMS - ActiveMQ

2019-11-10 20:14:21

字體：大中小

來源：轉載

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SPRing JMS

1 maven配置

<spring-activemq.version>5.14.3</spring-activemq.version><activemq.version>5.14.3</activemq.version><dependency> <groupId>org.springframework</groupId> <artifactId>spring-jms</artifactId> <version>${spring.version}</version></dependency><dependency> <groupId>org.apache.activemq</groupId> <artifactId>activemq-all</artifactId> <version>${activemq.version}</version></dependency>

2 spring整合jms

<?xml version="1.0" encoding="UTF-8"?><beans xmlns="http://www.springframework.org/schema/beans" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:jms="http://www.springframework.org/schema/jms" xsi:schemaLocation="http://www.springframework.org/schema/beanshttp://www.springframework.org/schema/beans/spring-beans-3.2.xsd http://www.springframework.org/schema/jms http://www.springframework.org/schema/jms/spring-jms.xsd">  <bean id="connectionFactory" class="org.apache.activemq.spring.ActiveMQConnectionFactory"> <property name="brokerURL" value="tcp://localhost:61616"/> <property name="trustAllPackages" value="true"/> </bean>  <bean id="messageConverter" class="org.springframework.jms.support.converter.SimpleMessageConverter"/>  <bean id="queue" class="org.apache.activemq.command.ActiveMQQueue"> <constructor-arg name="name" value="user.queue"/> </bean>  <bean id="jmsTemplate" class="org.springframework.jms.core.JmsTemplate"> <constructor-arg name="connectionFactory" ref="connectionFactory"/> <property name="messageConverter" ref="messageConverter"/> <property name="defaultDestination" ref="queue"/> </bean>  <bean id="userHandler" class="data_persistent.jms.UserHandler"/>  <jms:listener-container connection-factory="connectionFactory"> <jms:listener destination="user.queue" ref="userHandler" method="handleUserAlert"/> </jms:listener-container></beans>

3 發送消息、獲取消息測試

@RunWith(SpringJUnit4ClassRunner.class)//@ContextConfiguration(classes = {JMSConfig.class})@ContextConfiguration(value = "classpath*:spring/applicationContext-jms.xml")public class JMSTest{ @Autowired JmsTemplate jmsTemplate; @Autowired ActiveMQQueue queue; /** * 原生JMS發送消息 * @Author NikoBelic * @Date 03/02/2017 16:10 */ @Test public void sendMsg() { ConnectionFactory cf = new ActiveMQConnectionFactory("tcp://localhost:61616"); Connection conn = null; session session = null; try { conn = cf.createConnection(); session = conn.createSession(false, Session.AUTO_ACKNOWLEDGE); Destination destination = new ActiveMQQueue("user.queue"); MessageProducer producer = session.createProducer(destination); TextMessage message = session.createTextMessage(); message.setText("Hello ActiveMq"); producer.send(message); } catch (JMSException e) { e.printStackTrace(); } finally { try { if (session != null) session.close(); if (conn != null) conn.close(); } catch (JMSException e) { e.printStackTrace(); } } } /** * 原生JMS接收消息 * @Author NikoBelic * @Date 03/02/2017 16:10 */ @Test public void getMsg() { ConnectionFactory cf = new ActiveMQConnectionFactory("tcp://localhost:61616"); Connection conn = null; Session session = null; try { conn = cf.createConnection(); session = conn.createSession(false, Session.AUTO_ACKNOWLEDGE); Destination destination = new ActiveMQQueue("user.queue"); MessageConsumer consumer = session.createConsumer(destination); Message message = consumer.receive(); TextMessage textMessage = (TextMessage) message; System.out.println("Got a message: " + textMessage.getText()); conn.start(); } catch (JMSException e) { e.printStackTrace(); } finally { try { if (session != null) session.close(); if (conn != null) conn.close(); } catch (JMSException e) { e.printStackTrace(); } } } // ----------------------華麗的分割線---------------------- /** * 異步發送消息 * @Author NikoBelic * @Date 03/02/2017 18:13 */ @Test public void easySendMsg() { UserObj userObj = new UserObj(1, "NikoBleic", "12345", "None"); // 方法一 //jmsTemplate.send(queue, session -> { // return session.createTextMessage(userObj.toString()); //}); // 方法二 jmsTemplate.convertAndSend(userObj); } /** * 同步接收消息 * @Author NikoBelic * @Date 03/02/2017 18:14 */ @Test public void easyGetMsg() throws JMSException { while (true) { try { //TextMessage message = (TextMessage) jmsTemplate.receive(); //System.out.println(message.getText()); Message message = jmsTemplate.receive(); if (message instanceof ObjectMessage) { System.out.println("ObjectMsg Type"); System.out.println(((ObjectMessage) message).getObject()); } else { System.out.println("Other Type..." + message.getJMSType()); } }catch (Exception e) { System.out.println(e.getMessage()); } } }}異步消息監聽器收到了一條消息:UserObj{id=1, username='NikoBleic', passWord='12345', role='None'}

由于配置了異步消息監聽器，使用測試方法時，jmsTemplate.receive()將會與異步消息監聽器爭搶消息，誰搶到不一定。看下面示例

@Test public void easyGetMsg() throws JMSException { while (true) { try { //TextMessage message = (TextMessage) jmsTemplate.receive(); //System.out.println(message.getText()); Message message = jmsTemplate.receive(); if (message instanceof ObjectMessage) { System.out.println("JMS模板接收到了消息:" + ((ObjectMessage) message).getObject()); System.out.println(""); } else { System.out.println("Other Type..." + message.getJMSType()); } }catch (Exception e) { System.out.println(e.getMessage()); } } }

執行后什么都不會輸出，記控制臺輸出窗口為ConsoleA

@Test public void easySendMsg() { for (int i = 0; i < 100; i++) { // 方法二 UserObj userObj = new UserObj(i, "NikoBleic", "12345", "None"); jmsTemplate.convertAndSend(userObj); } // 方法一 //jmsTemplate.send(queue, session -> { // return session.createTextMessage(userObj.toString()); //}); }

執行以后ConsoleA會輸出如下，可以看到異步消息監聽器與template.receive發生了爭搶，但是以下顯示的不是全部數據，因為執行發送程序的時候，發送端也會初始化項目中的異步消息監聽器，導致總共有2個異步消息監聽器和1個template一起爭搶消息

異步消息監聽器收到了一條消息:UserObj{id=0, username='NikoBleic', password='12345', role='None'}JMS模板接收到了消息:UserObj{id=1, username='NikoBleic', password='12345', role='None'}異步消息監聽器收到了一條消息:UserObj{id=3, username='NikoBleic', password='12345', role='None'}JMS模板接收到了消息:UserObj{id=4, username='NikoBleic', password='12345', role='None'}異步消息監聽器收到了一條消息:UserObj{id=6, username='NikoBleic', password='12345', role='None'}JMS模板接收到了消息:UserObj{id=7, username='NikoBleic', password='12345', role='None'}異步消息監聽器收到了一條消息:UserObj{id=9, username='NikoBleic', password='12345', role='None'}JMS模板接收到了消息:UserObj{id=10, username='NikoBleic', password='12345', role='None'}異步消息監聽器收到了一條消息:UserObj{id=12, username='NikoBleic', password='12345', role='None'}JMS模板接收到了消息:UserObj{id=13, username='NikoBleic', password='12345', role='None'}異步消息監聽器收到了一條消息:UserObj{id=15, username='NikoBleic', password='12345', role='None'}JMS模板接收到了消息:UserObj{id=16, username='NikoBleic', password='12345', role='None'}異步消息監聽器收到了一條消息:UserObj{id=18, username='NikoBleic', password='12345', role='None'}JMS模板接收到了消息:UserObj{id=19, username='NikoBleic', password='12345', role='None'}異步消息監聽器收到了一條消息:UserObj{id=21, username='NikoBleic', password='12345', role='None'}JMS模板接收到了消息:UserObj{id=22, username='NikoBleic', password='12345', role='None'}異步消息監聽器收到了一條消息:UserObj{id=24, username='NikoBleic', password='12345', role='None'}JMS模板接收到了消息:UserObj{id=25, username='NikoBleic', password='12345', role='None'}異步消息監聽器收到了一條消息:UserObj{id=27, username='NikoBleic', password='12345', role='None'}JMS模板接收到了消息:UserObj{id=28, username='NikoBleic', password='12345', role='None'}異步消息監聽器收到了一條消息:UserObj{id=30, username='NikoBleic', password='12345', role='None'}JMS模板接收到了消息:UserObj{id=31, username='NikoBleic', password='12345', role='None'}異步消息監聽器收到了一條消息:UserObj{id=33, username='NikoBleic', password='12345', role='None'}JMS模板接收到了消息:UserObj{id=34, username='NikoBleic', password='12345', role='None'}異步消息監聽器收到了一條消息:UserObj{id=36, username='NikoBleic', password='12345', role='None'}JMS模板接收到了消息:UserObj{id=37, username='NikoBleic', password='12345', role='None'}異步消息監聽器收到了一條消息:UserObj{id=39, username='NikoBleic', password='12345', role='None'}異步消息監聽器收到了一條消息:UserObj{id=42, username='NikoBleic', password='12345', role='None'}JMS模板接收到了消息:UserObj{id=40, username='NikoBleic', password='12345', role='None'}異步消息監聽器收到了一條消息:UserObj{id=44, username='NikoBleic', password='12345', role='None'}JMS模板接收到了消息:UserObj{id=46, username='NikoBleic', password='12345', role='None'}異步消息監聽器收到了一條消息:UserObj{id=47, username='NikoBleic', password='12345', role='None'}JMS模板接收到了消息:UserObj{id=49, username='NikoBleic', password='12345', role='None'}異步消息監聽器收到了一條消息:UserObj{id=50, username='NikoBleic', password='12345', role='None'}JMS模板接收到了消息:UserObj{id=52, username='NikoBleic', password='12345', role='None'}異步消息監聽器收到了一條消息:UserObj{id=53, username='NikoBleic', password='12345', role='None'}JMS模板接收到了消息:UserObj{id=55, username='NikoBleic', password='12345', role='None'}異步消息監聽器收到了一條消息:UserObj{id=56, username='NikoBleic', password='12345', role='None'}異步消息監聽器收到了一條消息:UserObj{id=58, username='NikoBleic', password='12345', role='None'}JMS模板接收到了消息:UserObj{id=59, username='NikoBleic', password='12345', role='None'}異步消息監聽器收到了一條消息:UserObj{id=61, username='NikoBleic', password='12345', role='None'}JMS模板接收到了消息:UserObj{id=62, username='NikoBleic', password='12345', role='None'}異步消息監聽器收到了一條消息:UserObj{id=64, username='NikoBleic', password='12345', role='None'}JMS模板接收到了消息:UserObj{id=65, username='NikoBleic', password='12345', role='None'}異步消息監聽器收到了一條消息:UserObj{id=67, username='NikoBleic', password='12345', role='None'}JMS模板接收到了消息:UserObj{id=68, username='NikoBleic', password='12345', role='None'}異步消息監聽器收到了一條消息:UserObj{id=70, username='NikoBleic', password='12345', role='None'}JMS模板接收到了消息:UserObj{id=71, username='NikoBleic', password='12345', role='None'}異步消息監聽器收到了一條消息:UserObj{id=73, username='NikoBleic', password='12345', role='None'}JMS模板接收到了消息:UserObj{id=74, username='NikoBleic', password='12345', role='None'}異步消息監聽器收到了一條消息:UserObj{id=76, username='NikoBleic', password='12345', role='None'}JMS模板接收到了消息:UserObj{id=78, username='NikoBleic', password='12345', role='None'}異步消息監聽器收到了一條消息:UserObj{id=79, username='NikoBleic', password='12345', role='None'}JMS模板接收到了消息:UserObj{id=81, username='NikoBleic', password='12345', role='None'}異步消息監聽器收到了一條消息:UserObj{id=82, username='NikoBleic', password='12345', role='None'}JMS模板接收到了消息:UserObj{id=84, username='NikoBleic', password='12345', role='None'}異步消息監聽器收到了一條消息:UserObj{id=85, username='NikoBleic', password='12345', role='None'}JMS模板接收到了消息:UserObj{id=87, username='NikoBleic', password='12345', role='None'}異步消息監聽器收到了一條消息:UserObj{id=88, username='NikoBleic', password='12345', role='None'}JMS模板接收到了消息:UserObj{id=90, username='NikoBleic', password='12345', role='None'}異步消息監聽器收到了一條消息:UserObj{id=91, username='NikoBleic', password='12345', role='None'}JMS模板接收到了消息:UserObj{id=93, username='NikoBleic', password='12345', role='None'}異步消息監聽器收到了一條消息:UserObj{id=94, username='NikoBleic', password='12345', role='None'}JMS模板接收到了消息:UserObj{id=96, username='NikoBleic', password='12345', role='None'}異步消息監聽器收到了一條消息:UserObj{id=97, username='NikoBleic', password='12345', role='None'}JMS模板接收到了消息:UserObj{id=99, username='NikoBleic', password='12345', role='None'}

當前窗口會輸出如下

異步消息監聽器收到了一條消息:UserObj{id=2, username='NikoBleic', password='12345', role='None'}異步消息監聽器收到了一條消息:UserObj{id=5, username='NikoBleic', password='12345', role='None'}異步消息監聽器收到了一條消息:UserObj{id=8, username='NikoBleic', password='12345', role='None'}異步消息監聽器收到了一條消息:UserObj{id=11, username='NikoBleic', password='12345', role='None'}異步消息監聽器收到了一條消息:UserObj{id=14, username='NikoBleic', password='12345', role='None'}異步消息監聽器收到了一條消息:UserObj{id=17, username='NikoBleic', password='12345', role='None'}異步消息監聽器收到了一條消息:UserObj{id=20, username='NikoBleic', password='12345', role='None'}異步消息監聽器收到了一條消息:UserObj{id=23, username='NikoBleic', password='12345', role='None'}異步消息監聽器收到了一條消息:UserObj{id=26, username='NikoBleic', password='12345', role='None'}異步消息監聽器收到了一條消息:UserObj{id=29, username='NikoBleic', password='12345', role='None'}異步消息監聽器收到了一條消息:UserObj{id=32, username='NikoBleic', password='12345', role='None'}異步消息監聽器收到了一條消息:UserObj{id=35, username='NikoBleic', password='12345', role='None'}異步消息監聽器收到了一條消息:UserObj{id=38, username='NikoBleic', password='12345', role='None'}異步消息監聽器收到了一條消息:UserObj{id=41, username='NikoBleic', password='12345', role='None'}異步消息監聽器收到了一條消息:UserObj{id=43, username='NikoBleic', password='12345', role='None'}異步消息監聽器收到了一條消息:UserObj{id=45, username='NikoBleic', password='12345', role='None'}異步消息監聽器收到了一條消息:UserObj{id=48, username='NikoBleic', password='12345', role='None'}異步消息監聽器收到了一條消息:UserObj{id=51, username='NikoBleic', password='12345', role='None'}異步消息監聽器收到了一條消息:UserObj{id=54, username='NikoBleic', password='12345', role='None'}異步消息監聽器收到了一條消息:UserObj{id=57, username='NikoBleic', password='12345', role='None'}異步消息監聽器收到了一條消息:UserObj{id=60, username='NikoBleic', password='12345', role='None'}異步消息監聽器收到了一條消息:UserObj{id=63, username='NikoBleic', password='12345', role='None'}異步消息監聽器收到了一條消息:UserObj{id=66, username='NikoBleic', password='12345', role='None'}異步消息監聽器收到了一條消息:UserObj{id=69, username='NikoBleic', password='12345', role='None'}異步消息監聽器收到了一條消息:UserObj{id=72, username='NikoBleic', password='12345', role='None'}異步消息監聽器收到了一條消息:UserObj{id=75, username='NikoBleic', password='12345', role='None'}異步消息監聽器收到了一條消息:UserObj{id=77, username='NikoBleic', password='12345', role='None'}異步消息監聽器收到了一條消息:UserObj{id=80, username='NikoBleic', password='12345', role='None'}異步消息監聽器收到了一條消息:UserObj{id=83, username='NikoBleic', password='12345', role='None'}異步消息監聽器收到了一條消息:UserObj{id=86, username='NikoBleic', password='12345', role='None'}異步消息監聽器收到了一條消息:UserObj{id=89, username='NikoBleic', password='12345', role='None'}異步消息監聽器收到了一條消息:UserObj{id=92, username='NikoBleic', password='12345', role='None'}異步消息監聽器收到了一條消息:UserObj{id=95, username='NikoBleic', password='12345', role='None'}異步消息監聽器收到了一條消息:UserObj{id=98, username='NikoBleic', password='12345', role='None'}