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./
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./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./schema/beans"
- xmlns:xsi="http://www./2001/XMLSchema-instance"
- xmlns:context="http://www./schema/context"
- xmlns:mvc="http://www./schema/mvc"
- xsi:schemaLocation="http://www./schema/beans
- http://www./schema/beans/spring-beans.xsd
- http://www./schema/context
- http://www./schema/context/spring-context-4.1.xsd
- http://www./schema/mvc
- http://www./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./schema/beans"
- xmlns:xsi="http://www./2001/XMLSchema-instance"
- xmlns:context="http://www./schema/context"
- xmlns:mvc="http://www./schema/mvc"
- xsi:schemaLocation="http://www./schema/beans
- http://www./schema/beans/spring-beans.xsd
- http://www./schema/context
- http://www./schema/context/spring-context-4.1.xsd
- http://www./schema/mvc
- http://www./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./schema/beans"
- xmlns:xsi="http://www./2001/XMLSchema-instance"
- xmlns:amq="http://activemq./schema/core"
- xmlns:jms="http://www./schema/jms"
- xmlns:context="http://www./schema/context"
- xmlns:mvc="http://www./schema/mvc"
- xsi:schemaLocation="
- http://www./schema/beans
- http://www./schema/beans/spring-beans-4.1.xsd
- http://www./schema/context
- http://www./schema/context/spring-context-4.1.xsd
- http://www./schema/mvc
- http://www./schema/mvc/spring-mvc-4.1.xsd
- http://www./schema/jms
- http://www./schema/jms/spring-jms-4.1.xsd
- http://activemq./schema/core
- http://activemq./schema/core/activemq-core-5.12.1.xsd"
- >
-
- <!-- <context:component-scan base-package="com.qqw" />
- <mvc:annotation-driven />
-
- -->
- //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!!
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