ActiveMQの
開始デモ
ActiveMQの依存性
<dependency>
<groupId>org.apache.activemq</groupId>
<artifactId>activemq-client</artifactId>
<version>5.13.4</version>
</dependency>
Caused by: java.io.IOException: Transport scheme NOT recognized: [http]
ConnectionFactory connectionFactory = new ActiveMQConnectionFactory("http://192.168.20.131:61616");
Could not connect to broker URL: tcp://192.168.20.131:61616. Reason: java.net.ConnectException: Connection timed out: connect
メッセージパッシングポイント1. 2.パブリッシュ・サブスクライブ
ポイントへのポイント
達成するために、メッセージキュー、そうでない場合は、消費者と、メッセージは最初のメッセージキューに保存されます。メッセージは、消費者の消費となります。
package com.mozq;
import org.apache.activemq.ActiveMQConnectionFactory;
import javax.jms.*;
public class QueueProducer {
public static void main(String[] args) throws JMSException {
//创建连接工厂
ConnectionFactory connectionFactory = new ActiveMQConnectionFactory("tcp://192.168.20.131:61616");
//获取连接
Connection connection = connectionFactory.createConnection();
//启动连接
connection.start();
//获取会话
Session session = connection.createSession(false, Session.AUTO_ACKNOWLEDGE);
//创建队列
Queue queue = session.createQueue("test_queue");
//创建生产者
MessageProducer producer = session.createProducer(queue);
//创建消息
TextMessage message = session.createTextMessage("欢迎来到消息中间件世界");
//发送
for (int i = 0; i < 5; i++) {
producer.send(message);
}
//关闭资源
producer.close();
session.close();
connection.close();
}
}
消費者は、メッセージの再送再送メソッドを呼び出すことができます。そして、遅延の数。
RedeliveryPolicy
session.recover()
package com.mozq;
import org.apache.activemq.ActiveMQConnectionFactory;
import org.apache.activemq.RedeliveryPolicy;
import javax.jms.*;
import java.io.IOException;
public class QueueConsumer {
private static int i = 0;
public static void main(String[] args) throws JMSException, IOException {
//创建连接工厂
ConnectionFactory connectionFactory = new ActiveMQConnectionFactory("tcp://192.168.20.131:61616");
//重发策略
RedeliveryPolicy redeliveryPolicy = new RedeliveryPolicy();
redeliveryPolicy.setMaximumRedeliveries(2);
redeliveryPolicy.setRedeliveryDelay(3000);
((ActiveMQConnectionFactory) connectionFactory).setRedeliveryPolicy(redeliveryPolicy);
//获取连接
Connection connection = connectionFactory.createConnection();
//启动连接
connection.start();
//获取会话
Session session = connection.createSession(false, Session.AUTO_ACKNOWLEDGE);
//创建队列
Queue queue = session.createQueue("test_queue");
//创建消费者
MessageConsumer consumer = session.createConsumer(queue);
//监听消息
consumer.setMessageListener(new MessageListener() {
@Override
public void onMessage(Message message) {
TextMessage textMessage = (TextMessage) message;
try {
System.out.println(i++ + "消息处理");
int i = 1 / 0;
System.out.println("处理完成");
System.out.println(textMessage.getText());
} catch (Exception e) {
System.out.println("处理失败");
try {
session.recover();
} catch (JMSException e1) {
e1.printStackTrace();
}
}
}
});
System.in.read();
//关闭资源
session.close();
connection.close();
}
}
パブリッシュおよびサブスクライブ
パブリッシャーはありません、消費者ならば、このニュースが消費されないことを発表したとき。メッセージは、消費者がメッセージを投稿すると、すべてのアクティブ化に消費されます。
package com.mozq;
import org.apache.activemq.ActiveMQConnectionFactory;
import javax.jms.*;
public class TopicProducer {
private static final String url = "tcp://192.168.20.131:61616";
private static final String topicName = "test_topic";
public static void main(String[] args) throws JMSException {
//创建连接工厂
ConnectionFactory connectionFactory = new ActiveMQConnectionFactory(url);
//获取连接
Connection connection = connectionFactory.createConnection();
//启动连接
connection.start();
//获取会话
Session session = connection.createSession(false, Session.AUTO_ACKNOWLEDGE);
//创建主题
Topic topic = session.createTopic(topicName);
//创建生产者
MessageProducer producer = session.createProducer(topic);
//创建消息
TextMessage message = session.createTextMessage("欢迎来到消息中间件世界,主题消息");
//发送
for (int i = 0; i < 5; i++) {
producer.send(message);
}
//关闭资源
producer.close();
session.close();
connection.close();
}
}
package com.mozq;
import org.apache.activemq.ActiveMQConnectionFactory;
import javax.jms.*;
import java.io.IOException;
public class QueueConsumer {
public static void main(String[] args) throws JMSException, IOException {
//创建连接工厂
ConnectionFactory connectionFactory = new ActiveMQConnectionFactory("tcp://192.168.20.131:61616");
//获取连接
Connection connection = connectionFactory.createConnection();
//启动连接
connection.start();
//获取会话
Session session = connection.createSession(false, Session.AUTO_ACKNOWLEDGE);
//创建队列
Queue queue = session.createQueue("test_queue");
//创建消费者
MessageConsumer consumer = session.createConsumer(queue);
//监听消息
consumer.setMessageListener(new MessageListener() {
@Override
public void onMessage(Message message) {
TextMessage textMessage = (TextMessage) message;
try {
System.out.println(textMessage.getText());
} catch (JMSException e) {
e.printStackTrace();
}
}
});
System.in.read();
//关闭资源
session.close();
connection.close();
}
}
package com.mozq;
import org.apache.activemq.ActiveMQConnectionFactory;
import javax.jms.*;
import java.io.IOException;
public class TopicConsumer {
private static final String url = "tcp://192.168.20.131:61616";
private static final String topicName = "test_topic";
public static void main(String[] args) throws JMSException, IOException {
//创建连接工厂
ConnectionFactory connectionFactory = new ActiveMQConnectionFactory(url);
//获取连接
Connection connection = connectionFactory.createConnection();
//启动连接
connection.start();
//获取会话
Session session = connection.createSession(false, Session.AUTO_ACKNOWLEDGE);
//创建主题
Topic topic = session.createTopic(topicName);
//创建消费者
MessageConsumer consumer = session.createConsumer(topic);
//监听消息
consumer.setMessageListener(new MessageListener() {
@Override
public void onMessage(Message message) {
TextMessage textMessage = (TextMessage) message;
try {
System.out.println(textMessage.getText());
} catch (JMSException e) {
e.printStackTrace();
}
}
});
System.in.read();
//关闭资源
session.close();
connection.close();
}
}
春の統合のActiveMQ
依存春-JMS
<properties>
<spring.version>4.2.4.RELEASE</spring.version>
</properties>
<dependencies>
<!-- activemq 相关 -->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-jms</artifactId>
<version>${spring.version}</version>
</dependency>
<dependency>
<groupId>org.apache.activemq</groupId>
<artifactId>activemq-client</artifactId>
<version>5.13.4</version>
</dependency>
<!-- 测试相关 -->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-test</artifactId>
<version>${spring.version}</version>
</dependency>
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>4.9</version>
</dependency>
</dependencies>
ポイントへのポイント
配置バネJMS-プロデューサー
<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:context="http://www.springframework.org/schema/context"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns:jms="http://www.springframework.org/schema/jms"
xsi:schemaLocation="http://www.springframework.org/schema/beans
http://www.springframework.org/schema/beans/spring-beans.xsd
http://www.springframework.org/schema/context
http://www.springframework.org/schema/context/spring-context.xsd">
<context:component-scan base-package="cn.itcast.demo"></context:component-scan>
<!-- 真正可以产生Connection的ConnectionFactory,由对应的 JMS服务厂商提供-->
<bean id="targetConnectionFactory" class="org.apache.activemq.ActiveMQConnectionFactory">
<property name="brokerURL" value="tcp://192.168.20.131:61616" />
</bean>
<!-- Spring用于管理真正的ConnectionFactory的ConnectionFactory -->
<bean id="connectionFactory" class="org.springframework.jms.connection.SingleConnectionFactory">
<property name="targetConnectionFactory" ref="targetConnectionFactory" />
</bean>
<!-- Spring提供的JMS工具类,它可以进行消息发送、接收等 -->
<bean id="jmsTemplate" class="org.springframework.jms.core.JmsTemplate">
<property name="connectionFactory" ref="connectionFactory" />
</bean>
<!--点对点-->
<bean id="queueTextDestination" class="org.apache.activemq.command.ActiveMQQueue">
<constructor-arg value="queue_text" />
</bean>
<!-- 发布订阅 -->
<bean id="topicTextDestination" class="org.apache.activemq.command.ActiveMQTopic">
<constructor-arg value="topic_text" />
</bean>
</beans>
package cn.itcast.demo;
import org.apache.activemq.command.ActiveMQQueue;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.jms.core.JmsTemplate;
import org.springframework.jms.core.MessageCreator;
import org.springframework.stereotype.Component;
import javax.jms.JMSException;
import javax.jms.Message;
import javax.jms.Session;
@Component
public class QueueProducer {
@Autowired
private JmsTemplate jmsTemplate;
@Autowired
private ActiveMQQueue queueTextDestination;
public void sendTextMessage(String message){
jmsTemplate.send(queueTextDestination, new MessageCreator() {
@Override
public Message createMessage(Session session) throws JMSException {
return session.createTextMessage(message);
}
});
}
}
package cn.itcast.demo;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.test.context.ContextConfiguration;
import org.springframework.test.context.junit4.SpringJUnit4ClassRunner;
@RunWith(SpringJUnit4ClassRunner.class)
@ContextConfiguration("classpath:spring-jms-producer.xml")
public class QueueProducerTest {
@Autowired
private QueueProducer queueProducer;
@Test
public void testSend(){
queueProducer.sendTextMessage("spring-jms 队列消息");
}
}
春-JMS-消費者の設定
<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:context="http://www.springframework.org/schema/context"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns:jms="http://www.springframework.org/schema/jms"
xsi:schemaLocation="http://www.springframework.org/schema/beans
http://www.springframework.org/schema/beans/spring-beans.xsd
http://www.springframework.org/schema/context
http://www.springframework.org/schema/context/spring-context.xsd">
<context:component-scan base-package="cn.itcast.demo" />
<!-- 真正可以产生Connection的ConnectionFactory,由对应的 JMS服务厂商提供-->
<bean id="targetConnectionFactory" class="org.apache.activemq.ActiveMQConnectionFactory">
<property name="brokerURL" value="tcp://192.168.20.131:61616" />
</bean>
<!-- Spring用于管理真正的ConnectionFactory的ConnectionFactory -->
<bean id="connectionFactory" class="org.springframework.jms.connection.SingleConnectionFactory">
<property name="targetConnectionFactory" ref="targetConnectionFactory" />
</bean>
<!-- Spring提供的JMS工具类,它可以进行消息发送、接收等 -->
<bean id="jmsTemplate" class="org.springframework.jms.core.JmsTemplate">
<property name="connectionFactory" ref="connectionFactory" />
</bean>
<!--点对点-->
<bean id="queueTextDestination" class="org.apache.activemq.command.ActiveMQQueue">
<constructor-arg value="queue_text" />
</bean>
<!-- 发布订阅 -->
<bean id="topicTextDestination" class="org.apache.activemq.command.ActiveMQTopic">
<constructor-arg value="topic_text" />
</bean>
<!-- 消息监听实现类 -->
<bean id="myTextMessageListener" class="cn.itcast.demo.MyTextMessageListener" />
<!-- 消息监听容器 -->
<bean id="defaultMessageListenerContainer" class="org.springframework.jms.listener.DefaultMessageListenerContainer">
<property name="connectionFactory" ref="connectionFactory" />
<property name="destination" ref="queueTextDestination" />
<property name="messageListener" ref="myTextMessageListener" />
</bean>
</beans>
リスナークラス
package cn.itcast.demo;
import org.springframework.stereotype.Component;
import javax.jms.JMSException;
import javax.jms.Message;
import javax.jms.MessageListener;
import javax.jms.TextMessage;
@Component
public class MyTextMessageListener implements MessageListener {
@Override
public void onMessage(Message message) {
if(message instanceof TextMessage){
TextMessage textMessage = (TextMessage) message;
try {
String text = textMessage.getText();
System.out.println(text);
} catch (JMSException e) {
e.printStackTrace();
}
}
}
}
package cn.itcast.demo;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.springframework.test.context.ContextConfiguration;
import org.springframework.test.context.junit4.SpringJUnit4ClassRunner;
import java.io.IOException;
@RunWith(SpringJUnit4ClassRunner.class)
@ContextConfiguration("classpath:spring-jms-consumer.xml")
public class QueueConsumerTest {
@Test
public void test(){
try {
System.in.read();
} catch (IOException e) {
e.printStackTrace();
}
}
}
パブリッシュおよびサブスクライブ
解除
package cn.itcast.demo;
import org.apache.activemq.command.ActiveMQQueue;
import org.apache.activemq.command.ActiveMQTopic;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.jms.core.JmsTemplate;
import org.springframework.jms.core.MessageCreator;
import org.springframework.stereotype.Component;
import javax.jms.JMSException;
import javax.jms.Message;
import javax.jms.Session;
@Component
public class TopicProducer {
@Autowired
private JmsTemplate jmsTemplate;
@Autowired
private ActiveMQTopic topicTextDestination;
public void sendTextMessage(String message){
jmsTemplate.send(topicTextDestination, new MessageCreator() {
@Override
public Message createMessage(Session session) throws JMSException {
return session.createTextMessage(message);
}
});
}
}
package cn.itcast.demo;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.test.context.ContextConfiguration;
import org.springframework.test.context.junit4.SpringJUnit4ClassRunner;
@RunWith(SpringJUnit4ClassRunner.class)
@ContextConfiguration("classpath:spring-jms-producer.xml")
public class TopicProducerTest {
@Autowired
private TopicProducer topicProducer;
@Test
public void testSend(){
topicProducer.sendTextMessage("spring-jms 主题消息");
}
}
購読
<!-- 发布订阅的目的地 -->
<bean id="topicTextDestination" class="org.apache.activemq.command.ActiveMQTopic">
<constructor-arg value="topic_text" />
</bean>
<!-- 消息监听实现类 -->
<bean id="myTextMessageListener" class="cn.itcast.demo.MyTextMessageListener" />
<!-- 消息监听容器 -->
<bean id="defaultMessageListenerContainer" class="org.springframework.jms.listener.DefaultMessageListenerContainer">
<property name="connectionFactory" ref="connectionFactory" />
<property name="destination" ref="topicTextDestination" />
<property name="messageListener" ref="myTextMessageListener" />
</bean>
同じメッセージリスナーとアドホックモードを行う方法。
ActiveMQのは、アイデアを使用します
JMSは規範に従ってください
の2種類を渡すメッセージ
- メッセージキューポイントツーポイントモードでは、一度だけ消費されます
- 公開ニューストピックサブスクリプションは、より多くの消費者が消費され、
メッセージの5種類
メール
ObjectMessage
MapMessage
メッセージを変更します
StreamMessageの
MQの使用シナリオ:
システム間の完全デカップリング。生産者は消費者がコードの生産を呼び出すときに結果を返す必要はありません。
用户注册,发送验证邮件。
商品审核,生成静态页面,更新 solr 数据。
春と統合するアイデアのActiveMQ
- プロデューサー(JmsTemplate)
春注入することJmsTemplate工場は、メッセージを送信するときJmsTemplate先を渡す必要があり、使用の接続ファクトリーのActiveMQを接続する必要があり、接続ファクトリを提供します。
<!-- 真正可以产生Connection的ConnectionFactory,由对应的 JMS服务厂商提供-->
<bean id="targetConnectionFactory" class="org.apache.activemq.ActiveMQConnectionFactory">
<property name="brokerURL" value="tcp://192.168.20.131:61616" />
</bean>
<!-- Spring用于管理真正的ConnectionFactory的ConnectionFactory -->
<bean id="connectionFactory" class="org.springframework.jms.connection.SingleConnectionFactory">
<property name="targetConnectionFactory" ref="targetConnectionFactory" />
</bean>
<!-- Spring提供的JMS工具类,它可以进行消息发送、接收等 -->
<bean id="jmsTemplate" class="org.springframework.jms.core.JmsTemplate">
<property name="connectionFactory" ref="connectionFactory" />
</bean>
<!--点对点-->
<bean id="queueTextDestination" class="org.apache.activemq.command.ActiveMQQueue">
<constructor-arg value="queue_text" />
</bean>
<!-- 发布订阅 -->
<bean id="topicTextDestination" class="org.apache.activemq.command.ActiveMQTopic">
<constructor-arg value="topic_text" />
</bean>
- 消費者(DefaultMessageListenerContainer)
コンテナは、メッセージ、メッセージリスナ、2スプリング接続ファクトリを監視する必要があり、工場は、ActiveMQの3ターゲット宛先を設け必要スプリング接続ファクトリに接続されています。メッセージを受信したときにメッセージリスナにメッセージを処理し、接続を開始春自動的に作成され、リスナーメソッドが自動的に呼び出されます。
<!-- 消息监听容器 生成页面 -->
<bean class="org.springframework.jms.listener.DefaultMessageListenerContainer">
<property name="connectionFactory" ref="connectionFactory" />
<property name="destination" ref="topicPageDeleteDestination" />
<property name="messageListener" ref="pageDeleteListener" />
</bean>
問題
org.springframework.jms.connection.ConnectionFactoryUtils.releaseConnection(ConnectionFactoryUtils.java:83)Could not close JMS Connection
org.apache.activemq.ConnectionFailedException: The JMS connection has failed: java.io.EOFException
原因:
重启下服务好了。
org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'temListImportMessageListenerContainer' defined in file [D:\Code\IdeaProject\IdeaCode\pinyougou-work\pinyougou-parent\pinyougou-search-service\target\classes\spring\applicationContext-jms.xml]: Error setting property values; nested exception is org.springframework.beans.PropertyBatchUpdateException; nested PropertyAccessExceptions (1) are:
PropertyAccessException 1: org.springframework.beans.MethodInvocationException: Property 'messageListener' threw exception; nested exception is java.lang.IllegalArgumentException: Message listener needs to be of type [javax.jms.MessageListener] or [org.springframework.jms.listener.SessionAwareMessageListener]
原因:
没有实现 MessageListener 接口。
org.springframework.jms.UncategorizedJmsException: Uncategorized exception occured during JMS processing;
Caused by: org.apache.activemq.ConnectionFailedException: The JMS connection has failed: java.io.EOFException
原因:
重启下服务好了。