PTP
PTP的过程理解起来简单。它好比两个人打电话,这两个人是独享这一条通信链路的。一方是发送消息,另外一方接收,就这么简单。在实际应用中因为有多个用户对使用PTP的链路,他的通信场景如下
Publish-Subscribe
发布订阅模式有点类似于我们日常生活中订阅报纸。每年到年尾的时候,邮局就会发一本报纸集合让我们来选择订阅哪一个。在这个表里头裂了所有出版发行的报纸,那么对于我们每一个订阅的报纸就相当于发布订阅模式里的topic。有很多个人订阅报纸,也有人可能和我订阅了相同的报纸。那么在这里相当于我们在同一个topic里注册了。对于一份报纸发行方来说,它和所有的订阅者构成了一个一对多的关系。这种关系如下图所示:
activeMQ与spring进行整合
activeMQ可以很轻松的与spring进行整合,Sping提供了一系列的接口类,非常的好用。
我们接下来使用spring框架整合activeMQ,里有消息中间件,异步处理任务的机制,比如异步消费数据、异步发送邮件、异步做查询操作等。
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Coding:
activemq-consumer
使用的是maven搭建的
pom.xml
<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/maven-v4_0_0.xsd">
<modelVersion>4.0.0</modelVersion>
<groupId>activemq</groupId>
<artifactId>activemq-consumer</artifactId>
<packaging>war</packaging>
<version>0.0.1-SNAPSHOT</version>
<name>activemq-consumer Maven Webapp</name>
<url>http://maven.apache.org</url>
<repositories>
<repository>
<snapshots>
<enabled>true</enabled>
</snapshots>
<id>public</id>
<name>Public Repositories</name>
<url>http://localhost:8081/nexus/content/groups/public/</url>
</repository>
</repositories>
<pluginRepositories>
<pluginRepository>
<id>public</id>
<name>Public Repositories</name>
<url>http://localhost:8081/nexus/content/groups/public/</url>
</pluginRepository>
</pluginRepositories>
<!-- 设置公共属性,可以被引用 ${attribute} -->
<properties>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
<junit.version>4.11</junit.version>
<spring.version>3.2.0.RELEASE</spring.version>
<httpclient.version>4.3.1</httpclient.version>
</properties>
<dependencies>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-test</artifactId>
<version>${spring.version}</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-webmvc</artifactId>
<version>${spring.version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-core</artifactId>
<version>${spring.version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-context</artifactId>
<version>${spring.version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-context-support</artifactId>
<version>${spring.version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-jms</artifactId>
<version>${spring.version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-oxm</artifactId>
<version>${spring.version}</version>
</dependency>
<dependency>
<groupId>org.mybatis</groupId>
<artifactId>mybatis</artifactId>
<version>3.2.8</version>
</dependency>
<dependency>
<groupId>org.mybatis</groupId>
<artifactId>mybatis-spring</artifactId>
<version>1.1.1</version>
</dependency>
<dependency>
<groupId>org.apache.activemq</groupId>
<artifactId>activemq-all</artifactId>
<version>5.11.1</version>
</dependency>
<dependency>
<groupId>org.apache.activemq</groupId>
<artifactId>activemq-pool</artifactId>
<version>5.11.1</version>
</dependency>
<dependency>
<groupId>com.alibaba</groupId>
<artifactId>druid</artifactId>
<version>0.2.9</version>
</dependency>
<dependency>
<groupId>org.aspectj</groupId>
<artifactId>aspectjweaver</artifactId>
<version>1.7.1</version>
</dependency>
<dependency>
<groupId>org.codehaus.jackson</groupId>
<artifactId>jackson-mapper-asl</artifactId>
<version>1.9.11</version>
</dependency>
<dependency>
<groupId>commons-fileupload</groupId>
<artifactId>commons-fileupload</artifactId>
<version>1.2.2</version>
</dependency>
<dependency>
<groupId>org.apache.commons</groupId>
<artifactId>commons-lang3</artifactId>
<version>3.3.1</version>
</dependency>
<dependency>
<groupId>commons-io</groupId>
<artifactId>commons-io</artifactId>
<version>2.4</version>
</dependency>
<dependency>
<groupId>org.apache.httpcomponents</groupId>
<artifactId>httpclient-cache</artifactId>
<version>${httpclient.version}</version>
</dependency>
<dependency>
<groupId>org.apache.httpcomponents</groupId>
<artifactId>httpclient</artifactId>
<version>${httpclient.version}</version>
</dependency>
<dependency>
<groupId>org.apache.httpcomponents</groupId>
<artifactId>httpcore</artifactId>
<version>${httpclient.version}</version>
</dependency>
<dependency>
<groupId>com.alibaba</groupId>
<artifactId>fastjson</artifactId>
<version>1.1.26</version>
</dependency>
<dependency>
<groupId>org.slf4j</groupId>
<artifactId>slf4j-api</artifactId>
<version>1.7.9</version>
</dependency>
<dependency>
<groupId>org.slf4j</groupId>
<artifactId>jul-to-slf4j</artifactId>
<version>1.7.6</version>
</dependency>
<dependency>
<groupId>org.slf4j</groupId>
<artifactId>jcl-over-slf4j</artifactId>
<version>1.7.6</version>
</dependency>
<dependency>
<groupId>javax.servlet</groupId>
<artifactId>jstl</artifactId>
<version>1.2</version>
</dependency>
<dependency>
<groupId>javax.servlet</groupId>
<artifactId>servlet-api</artifactId>
<version>3.0-alpha-1</version>
<scope>provided</scope>
</dependency>
<dependency>
<groupId>com.github.miemiedev</groupId>
<artifactId>mybatis-paginator</artifactId>
<version>1.2.10</version>
</dependency>
<dependency>
<groupId>com.ojdbc7</groupId>
<artifactId>ojdbc7</artifactId>
<version>1.0</version>
</dependency>
<dependency>
<groupId>mysql</groupId>
<artifactId>mysql-connector-java</artifactId>
<version>5.1.21</version>
</dependency>
<dependency>
<groupId>org.jboss.marshalling</groupId>
<artifactId>jboss-marshalling</artifactId>
<version>1.3.0.CR9</version>
</dependency>
<dependency>
<groupId>org.jboss.marshalling</groupId>
<artifactId>jboss-marshalling-serial</artifactId>
<version>1.3.0.CR9</version>
</dependency>
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>${junit.version}</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.apache.curator</groupId>
<artifactId>curator-framework</artifactId>
<version>2.4.2</version>
</dependency>
<dependency>
<groupId>org.apache.curator</groupId>
<artifactId>curator-recipes</artifactId>
<version>2.4.2</version>
</dependency>
</dependencies>
<build>
<finalName>activemq-consumer</finalName>
</build>
</project>
config.properties
## ActiveMQ Configuration
activemq.brokerURL=tcp\://192.168.1.200\:61616
activemq.userName=xxx
activemq.password=xxx
activemq.pool.maxConnections=10
#queueName
activemq.queueName=mailqueue
## SMTP Configuration
mail.host=smtp.163.com
##mail.port=21
mail.username=***@163.com
mail.password=
mail.smtp.auth=true
mail.smtp.timeout=30000
mail.default.from=***@163.com
spring-activemq.xml
<?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:p="http://www.springframework.org/schema/p"
xmlns:context="http://www.springframework.org/schema/context"
xmlns:aop="http://www.springframework.org/schema/aop" xmlns:tx="http://www.springframework.org/schema/tx"
xsi:schemaLocation="http://www.springframework.org/schema/beans
http://www.springframework.org/schema/beans/spring-beans-3.2.xsd
http://www.springframework.org/schema/aop
http://www.springframework.org/schema/aop/spring-aop-3.2.xsd
http://www.springframework.org/schema/tx
http://www.springframework.org/schema/tx/spring-tx-3.2.xsd
http://www.springframework.org/schema/context
http://www.springframework.org/schema/context/spring-context-3.2.xsd"
default-autowire="byName" default-lazy-init="false">
<!-- 第三方MQ工厂: ConnectionFactory -->
<bean id="targetConnectionFactory" class="org.apache.activemq.ActiveMQConnectionFactory">
<!-- ActiveMQ服务地址 -->
<property name="brokerURL" value="${activemq.brokerURL}" />
<property name="userName" value="${activemq.userName}"></property>
<property name="password" value="${activemq.password}"></property>
</bean>
<!--
ActiveMQ为我们提供了一个PooledConnectionFactory,通过往里面注入一个ActiveMQConnectionFactory
可以用来将Connection、Session和MessageProducer池化,这样可以大大的减少我们的资源消耗,要依赖于 activemq-pool包
-->
<bean id="pooledConnectionFactory" class="org.apache.activemq.pool.PooledConnectionFactory">
<property name="connectionFactory" ref="targetConnectionFactory" />
<property name="maxConnections" value="${activemq.pool.maxConnections}" />
</bean>
<!-- Spring用于管理真正的ConnectionFactory的ConnectionFactory -->
<bean id="connectionFactory" class="org.springframework.jms.connection.SingleConnectionFactory">
<!-- 目标ConnectionFactory对应真实的可以产生JMS Connection的ConnectionFactory -->
<property name="targetConnectionFactory" ref="pooledConnectionFactory" />
</bean>
<!-- Spring提供的JMS工具类,它可以进行消息发送、接收等 -->
<!-- 队列模板 -->
<bean id="jmsTemplate" class="org.springframework.jms.core.JmsTemplate">
<!-- 这个connectionFactory对应的是我们定义的Spring提供的那个ConnectionFactory对象 -->
<property name="connectionFactory" ref="connectionFactory"/>
<property name="defaultDestinationName" value="${activemq.queueName}"></property>
</bean>
<!--这个是目的地:mailQueue -->
<bean id="mailQueue" class="org.apache.activemq.command.ActiveMQQueue">
<constructor-arg>
<value>${activemq.queueName}</value>
</constructor-arg>
</bean>
<!-- 配置自定义监听:MessageListener -->
<bean id="mailQueueMessageListener" class="bhz.mq.MailQueueMessageListener"></bean>
<!-- 将连接工厂、目标对了、自定义监听注入jms模板 -->
<bean id="sessionAwareListenerContainer" class="org.springframework.jms.listener.DefaultMessageListenerContainer">
<property name="connectionFactory" ref="connectionFactory" />
<property name="destination" ref="mailQueue" />
<property name="messageListener" ref="mailQueueMessageListener" />
</bean>
</beans>
spring-context.xml
<?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:p="http://www.springframework.org/schema/p" xmlns:context="http://www.springframework.org/schema/context" xmlns:aop="http://www.springframework.org/schema/aop"
xmlns:tx="http://www.springframework.org/schema/tx"
xsi:schemaLocation="http://www.springframework.org/schema/beans
http://www.springframework.org/schema/beans/spring-beans-3.2.xsd
http://www.springframework.org/schema/aop
http://www.springframework.org/schema/aop/spring-aop-3.2.xsd
http://www.springframework.org/schema/tx
http://www.springframework.org/schema/tx/spring-tx-3.2.xsd
http://www.springframework.org/schema/context
http://www.springframework.org/schema/context/spring-context-3.2.xsd"
default-autowire="byName" default-lazy-init="false">
<!-- 读入配置属性文件 -->
<context:property-placeholder location="classpath:config.properties" />
<!-- 注释配置 -->
<context:annotation-config />
<!-- 扫描包起始位置 -->
<context:component-scan base-package="bhz" />
<!-- proxy-target-class默认"false",更改为"ture"使用CGLib动态代理 -->
<aop:aspectj-autoproxy proxy-target-class="true" />
<import resource="classpath:spring-activemq.xml" />
<import resource="classpath:spring-mail.xml" />
</beans>
spring-mail.xml
<?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:p="http://www.springframework.org/schema/p"
xmlns:context="http://www.springframework.org/schema/context" xmlns:aop="http://www.springframework.org/schema/aop" xmlns:tx="http://www.springframework.org/schema/tx"
xmlns:cache="http://www.springframework.org/schema/cache"
xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.2.xsd
http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-3.2.xsd
http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-3.2.xsd
http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-3.2.xsd
http://www.springframework.org/schema/cache http://www.springframework.org/schema/cache/spring-cache-3.2.xsd">
<!-- Spring提供的发送电子邮件的高级抽象类 -->
<bean id="mailSender" class="org.springframework.mail.javamail.JavaMailSenderImpl">
<property name="host" value="${mail.host}" />
<property name="username" value="${mail.username}" />
<property name="password" value="${mail.password}" />
<property name="defaultEncoding" value="UTF-8"></property>
<property name="javaMailProperties">
<props>
<prop key="mail.smtp.auth">${mail.smtp.auth}</prop>
<prop key="mail.smtp.timeout">${mail.smtp.timeout}</prop>
</props>
</property>
</bean>
<bean id="simpleMailMessage" class="org.springframework.mail.SimpleMailMessage">
<property name="from">
<value>${mail.default.from}</value>
</property>
</bean>
<!-- 配置线程池 -->
<bean id="threadPool" class="org.springframework.scheduling.concurrent.ThreadPoolTaskExecutor">
<!-- 线程池维护线程的最少数量 -->
<property name="corePoolSize" value="5" />
<!-- 线程池维护线程所允许的空闲时间 -->
<property name="keepAliveSeconds" value="30000" />
<!-- 线程池维护线程的最大数量 -->
<property name="maxPoolSize" value="50" />
<!-- 线程池所使用的缓冲队列 -->
<property name="queueCapacity" value="100" />
</bean>
</beans>
Mail.java
package bhz.entity;
public class Mail {
/** 发件人 **/
private String from;
/** 收件人 **/
private String to;
/** 主题 **/
private String subject;
/** 邮件内容 **/
private String content;
public Mail(){}
public Mail(String from, String to, String subject, String content) {
super();
this.from = from;
this.to = to;
this.subject = subject;
this.content = content;
}
public String getFrom() {
return from;
}
public void setFrom(String from) {
this.from = from;
}
public String getTo() {
return to;
}
public void setTo(String to) {
this.to = to;
}
public String getSubject() {
return subject;
}
public void setSubject(String subject) {
this.subject = subject;
}
public String getContent() {
return content;
}
public void setContent(String content) {
this.content = content;
}
}
MailQueueMessageListener.java
package bhz.mq;
import javax.jms.Destination;
import javax.jms.Message;
import javax.jms.Session;
import javax.jms.TextMessage;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.jms.core.JmsTemplate;
import org.springframework.jms.listener.SessionAwareMessageListener;
import org.springframework.stereotype.Component;
import bhz.entity.Mail;
import bhz.service.MailService;
import com.alibaba.fastjson.JSONObject;
/**
* <B>系统名称:</B><BR>
* <B>模块名称:</B><BR>
* <B>中文类名:</B><BR>
* <B>概要说明:</B><BR>
*/
@Component
public class MailQueueMessageListener implements SessionAwareMessageListener<Message> {
@Autowired
private JmsTemplate jmsTemplate;
@Autowired
private Destination mailQueue;
@Autowired
private MailService mailService;
public synchronized void onMessage(Message message, Session session) {
try {
TextMessage msg = (TextMessage) message;
final String ms = msg.getText();
System.out.println("收到消息:" + ms);
//转换成相应的对象
Mail mail = JSONObject.parseObject(ms, Mail.class);
if (mail == null) {
return;
}
try {
//执行发送业务
mailService.mailSend(mail);
} catch (Exception e) {
// 发送异常,重新放回队列
// jmsTemplate.send(mailQueue, new MessageCreator() {
// @Override
// public Message createMessage(Session session) throws JMSException {
// return session.createTextMessage(ms);
// }
// });
e.printStackTrace();
}
} catch (Exception e) {
e.printStackTrace();
}
}
}
MailService.java
package bhz.service;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.mail.MailException;
import org.springframework.mail.SimpleMailMessage;
import org.springframework.mail.javamail.JavaMailSender;
import org.springframework.scheduling.concurrent.ThreadPoolTaskExecutor;
import org.springframework.stereotype.Service;
import bhz.entity.Mail;
@Service("mailService")
public class MailService {
@Autowired
private JavaMailSender mailSender;
@Autowired
private SimpleMailMessage simpleMailMessage;
@Autowired
private ThreadPoolTaskExecutor threadPool;
/**
* <B>方法名称:</B>发送邮件<BR>
* <B>概要说明:</B>发送邮件<BR>
* @param mail
*/
public void mailSend(final Mail mail) {
threadPool.execute(new Runnable() {
public void run() {
try {
simpleMailMessage.setFrom(simpleMailMessage.getFrom());
simpleMailMessage.setTo(mail.getTo());
simpleMailMessage.setSubject(mail.getSubject());
simpleMailMessage.setText(mail.getContent());
mailSender.send(simpleMailMessage);
} catch (MailException e) {
e.printStackTrace();
throw e;
}
}
});
}
}
TestConsumer.java
package bhz.test;
import org.springframework.context.support.ClassPathXmlApplicationContext;
/**
* <B>系统名称:</B><BR>
* <B>模块名称:</B><BR>
* <B>中文类名:</B><BR>
* <B>概要说明:</B><BR>
*/
public class TestConsumer {
public static void main(String[] args) {
try {
ClassPathXmlApplicationContext context = new ClassPathXmlApplicationContext(new String[] { "spring-context.xml" });
context.start();
} catch (Exception e) {
e.printStackTrace();
}
}
}
activemq-provider
以上配置文件里面的内容和activemq-consumer一样。
MQProducer.java
package bhz.mq;
import javax.jms.JMSException;
import javax.jms.Message;
import javax.jms.Session;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.jms.core.JmsTemplate;
import org.springframework.jms.core.MessageCreator;
import org.springframework.stereotype.Service;
import bhz.entity.Mail;
import com.alibaba.fastjson.JSONObject;
/**
* <B>系统名称:</B><BR>
* <B>模块名称:</B><BR>
* <B>中文类名:</B><BR>
* <B>概要说明:</B><BR>
*/
@Service("mqProducer")
public class MQProducer {
private JmsTemplate jmsTemplate;
public JmsTemplate getJmsTemplate() {
return jmsTemplate;
}
@Autowired
public void setJmsTemplate(JmsTemplate jmsTemplate) {
this.jmsTemplate = jmsTemplate;
}
/**
* <B>方法名称:</B>发送邮件信息对象<BR>
* <B>概要说明:</B>发送邮件信息对象<BR>
* @param mail
*/
public void sendMessage(final Mail mail) {
jmsTemplate.send(new MessageCreator() {
public Message createMessage(Session session) throws JMSException {
return session.createTextMessage(JSONObject.toJSONString(mail));
}
});
}
}
TestProducer.java
package bhz.test;
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;
import bhz.entity.Mail;
import bhz.mq.MQProducer;
/**
* <B>系统名称:</B><BR>
* <B>模块名称:</B><BR>
* <B>中文类名:</B><BR>
* <B>概要说明:</B><BR>
*/
@ContextConfiguration(locations = {"classpath:spring-context.xml" })
@RunWith(SpringJUnit4ClassRunner.class)
public class TestProducer {
@Autowired
private MQProducer mqProducer;
@Test
public void send(){
Mail mail = new Mail();
mail.setTo("[email protected]");
mail.setSubject("异步发送邮件");
mail.setContent("Hi,This is a message!");
this.mqProducer.sendMessage(mail);
System.out.println("发送成功..");
}
}