关于jms概念以及activemq这里不做具体赘述,activemq是apache的一款项目,介绍里号称是最方便最强大的jms实现方式。其实jms与webservice功能是一样的,侧重点不同而已。都是提供多系统之间的交互通信方式,前者相对于后者更加轻量级,可以实现延迟通信,避免系统高峰期交互通信,也不需要暴露接口等,开发起来更加方便,但是如果项目要求即时性很高那么就选择后者,当然他们两者也可以整合起来一起使用,本文重点介绍的是spring框架整合activemq实现点对点模式,关于activemq具体概念百度。
1:下载activemq中间件,地址:http://activemq.apache.org/
下载好压缩到本地,可以看到这个目录
从它的目录来说,还是很简单的:
bin存放的是脚本文件
conf存放的是基本配置文件
data存放的是日志文件
docs存放的是说明文档
examples存放的是简单的实例
lib存放的是activemq所需jar包
webapps用于存放项目的目录
其中conf里面有个activemq.xml里面有个配置<broker xmlns="http://activemq.apache.org/schema/core" brokerName="localhost" dataDirectory="${activemq.data}">默认是localhost,这个是可以修改,比如可以换成本机ip地址或是局域网另一台电脑ip,这样把中间件部署到同事电脑你也可以访问,同理部署到linux服务器上只需要把localhost换成服务器ip地址,关于这一段的修改用意在代码里面会提及。修改完后进入bin文件夹选择32或64位文件夹后点击activemq.bat批处理命令后中间件启动了起来。该项目还提供了一个管理页面,访问地址是http://(localhost或是你前面修改的同事ip或服务器ip地址):8161/admin 默认的用户名密码都是admin,见下图。我们主要点击Queues栏,里面会显示你的发送消息和接收消息的具体信息,也可以做删除等操作。
2:进行项目的搭建
pom.xml配置
<properties>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
<springframework>4.1.8.RELEASE</springframework>
</properties>
<dependencies>
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>3.8.1</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>javax.servlet</groupId>
<artifactId>jstl</artifactId>
<version>1.2</version>
</dependency>
<dependency>
<groupId>javax.servlet</groupId>
<artifactId>javax.servlet-api</artifactId>
<version>3.1.0</version>
</dependency>
<dependency>
<groupId>javax.servlet.jsp</groupId>
<artifactId>javax.servlet.jsp-api</artifactId>
<version>2.3.1</version>
</dependency>
<!-- spring -->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-core</artifactId>
<version>${springframework}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-context</artifactId>
<version>${springframework}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-tx</artifactId>
<version>${springframework}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-webmvc</artifactId>
<version>${springframework}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-web</artifactId>
<version>${springframework}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-jms</artifactId>
<version>${springframework}</version>
</dependency>
<!-- xbean 如<amq:connectionFactory /> -->
<dependency>
<groupId>org.apache.xbean</groupId>
<artifactId>xbean-spring</artifactId>
<version>3.16</version>
</dependency>
<!-- activemq -->
<dependency>
<groupId>org.apache.activemq</groupId>
<artifactId>activemq-core</artifactId>
<version>5.7.0</version>
</dependency>
<dependency>
<groupId>org.apache.activemq</groupId>
<artifactId>activemq-pool</artifactId>
<version>5.12.1</version>
</dependency>
<!--实现日志 -->
<dependency>
<groupId>org.slf4j</groupId>
<artifactId>slf4j-log4j12</artifactId>
<version>1.7.22</version>
</dependency>
<!--处理json -->
<dependency>
<groupId>com.alibaba</groupId>
<artifactId>fastjson</artifactId>
<version>1.2.0</version>
</dependency>
</dependencies>
applicationContext.xml配置
<?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:context="http://www.springframework.org/schema/context"
xmlns:mvc="http://www.springframework.org/schema/mvc"
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-4.1.xsd
http://www.springframework.org/schema/mvc
http://www.springframework.org/schema/mvc/spring-mvc-4.1.xsd">
<!-- 配置扫描路径 -->
<context:component-scan base-package="com.qqw">
<!-- 只扫描Service,也可以添加Repostory,但是要把Controller排除在外,Controller由spring-mvc.xml去加载 -->
<!-- <context:include-filter type="annotation" expression="org.springframework.stereotype.Service" /> -->
<!-- <context:include-filter type="annotation" expression="org.springframework.stereotype.Repository" /> -->
<!-- <context:include-filter type="annotation" expression="org.springframework.stereotype.Component" /> -->
<context:exclude-filter type="annotation" expression="org.springframework.stereotype.Controller"/>
</context:component-scan>
<!-- <mvc:annotation-driven /> -->
</beans>
spring-mvc.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:context="http://www.springframework.org/schema/context"
xmlns:mvc="http://www.springframework.org/schema/mvc"
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-4.1.xsd
http://www.springframework.org/schema/mvc
http://www.springframework.org/schema/mvc/spring-mvc-4.1.xsd">
<!-- 启用MVC注解 -->
<mvc:annotation-driven />
<!-- 静态资源文件,不会被Spring MVC拦截 -->
<mvc:resources location="/resources/" mapping="/resources/**"/>
<!-- 指定Sping组件扫描的基本包路径 -->
<context:component-scan base-package="com.qqw" >
<!-- 这里只扫描Controller,不可重复加载Service -->
<context:include-filter type="annotation" expression="org.springframework.stereotype.Controller"/>
</context:component-scan>
<!-- JSP视图解析器-->
<bean id="viewResolver" class="org.springframework.web.servlet.view.InternalResourceViewResolver">
<property name="viewClass" value="org.springframework.web.servlet.view.JstlView"/>
<!-- <property name="prefix" value="/WEB-INF/jsp/"/> -->
<property name="prefix" value="/"/>
<property name="suffix" value=".jsp"/>
<!-- 定义其解析视图的order顺序为1 -->
<property name="order" value="1" />
</bean>
</beans>
接下来就是重要的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:amq="http://activemq.apache.org/schema/core"
xmlns:jms="http://www.springframework.org/schema/jms"
xmlns:context="http://www.springframework.org/schema/context"
xmlns:mvc="http://www.springframework.org/schema/mvc"
xsi:schemaLocation="
http://www.springframework.org/schema/beans
http://www.springframework.org/schema/beans/spring-beans-4.1.xsd
http://www.springframework.org/schema/context
http://www.springframework.org/schema/context/spring-context-4.1.xsd
http://www.springframework.org/schema/mvc
http://www.springframework.org/schema/mvc/spring-mvc-4.1.xsd
http://www.springframework.org/schema/jms
http://www.springframework.org/schema/jms/spring-jms-4.1.xsd
http://activemq.apache.org/schema/core
http://activemq.apache.org/schema/core/activemq-core-5.12.1.xsd"
>
//这里的是用默认的localhost,如果做了修改或是项目上线,这个要换成网络ip地址,具体见上面的配置提到
<amq:connectionFactory id="amqConnectionFactory"
brokerURL="tcp://localhost:61616"
userName="admin"
password="admin" />
<!-- 配置JMS连接工长 -->
<bean id="connectionFactory"
class="org.springframework.jms.connection.CachingConnectionFactory">
<constructor-arg ref="amqConnectionFactory" />
<property name="sessionCacheSize" value="100" />
</bean>
<!-- 定义消息队列(Queue) -->
<bean id="demoQueueDestination" class="org.apache.activemq.command.ActiveMQQueue">
<!-- 设置消息队列的名字 -->
<constructor-arg>
<value>gzframe.demo</value>
</constructor-arg>
</bean>
<!-- 配置JMS模板(Queue),Spring提供的JMS工具类,它发送、接收消息。 -->
<bean id="jmsTemplate" class="org.springframework.jms.core.JmsTemplate">
<property name="connectionFactory" ref="connectionFactory" />
<property name="defaultDestination" ref="demoQueueDestination" />
<property name="receiveTimeout" value="10000" />
<!-- true是topic,false是queue,默认是false,此处显示写出false -->
<property name="pubSubDomain" value="false" />
</bean>
<!--加入监听器 -->
<bean id="queueMessageListener" class="com.qqw.active.QueueMessageListener" />
<!-- 显示注入消息监听容器(Queue),配置连接工厂,监听的目标是demoQueueDestination,监听器是上面定义的监听器 -->
<bean id="queueListenerContainer"
class="org.springframework.jms.listener.DefaultMessageListenerContainer">
<property name="connectionFactory" ref="connectionFactory" />
<property name="destination" ref="demoQueueDestination" />
<property name="messageListener" ref="queueMessageListener" />
</bean>
</beans>
3:逻辑代码
(1)消息发送者
package com.qqw.active;
import javax.annotation.Resource;
import javax.jms.Destination;
import javax.jms.JMSException;
import javax.jms.Message;
import javax.jms.Session;
import org.springframework.jms.core.JmsTemplate;
import org.springframework.jms.core.MessageCreator;
import org.springframework.stereotype.Service;
@Service
public class ProducerService {
@Resource(name="jmsTemplate")
private JmsTemplate jmsTemplate;
/**
* 向指定队列发送消息
*/
public void sendMessage(Destination destination, final String msg) {
System.out.println("向队列" + destination.toString() + "发送了消息------------" + msg);
jmsTemplate.send(destination, new MessageCreator() {
public Message createMessage(Session session) throws JMSException {
return session.createTextMessage(msg);
}
});
}
/**
* 向默认队列发送消息
*/
public void sendMessage(final String msg) {
String destination = jmsTemplate.getDefaultDestination().toString();
System.out.println("向队列" +destination+ "发送了消息------------" + msg);
jmsTemplate.send(new MessageCreator() {
public Message createMessage(Session session) throws JMSException {
return session.createTextMessage(msg);
}
});
}
}
(2)消息接受者
package com.qqw.active;
import javax.annotation.Resource;
import javax.jms.Destination;
import javax.jms.JMSException;
import javax.jms.TextMessage;
import org.springframework.jms.core.JmsTemplate;
import org.springframework.stereotype.Service;
import com.alibaba.fastjson.JSON;
@Service
public class ConsumerService {
@Resource(name="jmsTemplate")
private JmsTemplate jmsTemplate;
/**
* 接收消息
*/
public TextMessage receive(Destination destination) {
TextMessage tm = (TextMessage) jmsTemplate.receive(destination);
try {
System.out.println("从队列" + destination.toString() + "收到了消息:\t"
+ tm.getText());
/*Gson gson = new Gson();*/
Person fromJson = JSON.parseObject(tm.getText(), Person.class);
System.out.println(fromJson.toString());
} catch (JMSException e) {
e.printStackTrace();
}
return tm;
}
}
(3)传递的实体类
package com.qqw.active;
public class Person {
private String name;
private String sex;
private int age;
public Person() {
super();
// TODO Auto-generated constructor stub
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public String getSex() {
return sex;
}
public void setSex(String sex) {
this.sex = sex;
}
public int getAge() {
return age;
}
public void setAge(int age) {
this.age = age;
}
@Override
public String toString() {
return "Person [name=" + name + ", sex=" + sex + ", age=" + age + "]";
}
}
(4)为接受者定义监听器,这样消息一发到中间件会自动接收处理,如果不需要自动,这段不用写,并且把activemq.xml后两个bean注释掉
package com.qqw.active;
import javax.jms.JMSException;
import javax.jms.Message;
import javax.jms.MessageListener;
import javax.jms.TextMessage;
public class QueueMessageListener implements MessageListener {
//当收到消息后,自动调用该方法
@Override
public void onMessage(Message message) {
TextMessage tm = (TextMessage) message;
try {
System.out.println("QueueMessageListener监听到了文本消息:\t"
+ tm.getText());
Person fromJson = JSON.parseObject(tm.getText(), Person.class);
System.out.println(fromJson.toString());
//do something ...
} catch (JMSException e){ e.printStackTrace();
}
}
}
}
(5)具体业务逻辑
//发送queue消息
@RequestMapping(value="/onsend",method=RequestMethod.POST)
public ModelAndView producer(@RequestParam("message") String message) {
System.out.println("------------send to jms");
com.alibaba.fastjson.JSONObject jsonObj = new com.alibaba.fastjson.JSONObject();
jsonObj.put("name", "张三");
jsonObj.put("sex", "男");
jsonObj.put("age", 20);
String resultjson=JSON.toJSONString(jsonObj);
ModelAndView mv = null;
producer.sendMessage(demoQueueDestination, resultjson);
mv=new ModelAndView("index");
return mv;
}
//如果不需要监听器想手动去接收消息的方式
@RequestMapping(value="/receive",method=RequestMethod.GET)
public ModelAndView queue_receive() throws JMSException {
System.out.println("------------receive message");
ModelAndView mv = new ModelAndView();
TextMessage tm = consumer.receive(demoQueueDestination);
mv.addObject("textMessage", tm.getText());
mv.setViewName("queue_receive");
return mv;
}
(6)本地运行截图
以上就介绍完了,参考了网上资料以及自己的一些实践,大家互相交流学习!!!