SPRing 是J2EE 最重要的框架，ActiveMQ 是Jms的框架，用于兩個程序、系統中的異步通信，兩者的用途都挺廣泛。上一篇博文介紹的是發(fā)布-訂閱形式，今次以點-點形式做一個案例。先看看效果：
環(huán)境準備：linux + jdk1.7 + myeclipse2014 + maven + tomcat8+ ActiveMQ-5.11.1 + Spring-4.1.6
源碼在github上：https://github.com/fuckyourdick/myRegisterSystem/tree/master/SpringJms
項目結構：
1).pom.xml
<?xml version="1.0" encoding="UTF-8"?><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/xsd/maven-4.0.0.xsd"> <modelVersion>4.0.0</modelVersion> <groupId>com.msayem</groupId> <artifactId>spring-jms-with-activemq</artifactId> <name>Spring JMS with ActiveMQ</name> <version>0.0.1-SNAPSHOT</version> <packaging>war</packaging> <properties> <org.springframework-version>4.1.6.RELEASE</org.springframework-version> <org.apache.activemq-version>5.11.1</org.apache.activemq-version> <log4j-version>1.2.17</log4j-version> <org.slf4j-version>1.7.12</org.slf4j-version> <junit-version>3.8.1</junit-version> <org.mockito-version>1.10.19</org.mockito-version> <servlet-api-version>3.1.0</servlet-api-version> </properties> <dependencies> <!-- Spring --> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-webmvc</artifactId> <version>${org.springframework-version}</version> </dependency> <!-- Spring JMS and ActiveMQ --> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-jms</artifactId> <version>${org.springframework-version}</version> </dependency> <dependency> <groupId>org.apache.activemq</groupId> <artifactId>activemq-all</artifactId> <version>${org.apache.activemq-version}</version> <scope>compile</scope> </dependency> <!-- Logging --> <dependency> <groupId>log4j</groupId> <artifactId>log4j</artifactId> <version>${log4j-version}</version> </dependency> <dependency> <groupId>org.slf4j</groupId> <artifactId>slf4j-api</artifactId> <version>${org.slf4j-version}</version> </dependency> <dependency> <groupId>org.slf4j</groupId> <artifactId>slf4j-log4j12</artifactId> <version>${org.slf4j-version}</version> </dependency> <!-- Testing --> <dependency> <groupId>junit</groupId> <artifactId>junit</artifactId> <version>${junit-version}</version> <scope>test</scope> </dependency> <dependency> <groupId>javax.servlet</groupId> <artifactId>javax.servlet-api</artifactId> <version>${servlet-api-version}</version> </dependency> <dependency> <groupId>org.mockito</groupId> <artifactId>mockito-core</artifactId> <version>${org.mockito-version}</version> </dependency> </dependencies> <build> <finalName>spingAndJmsDemo</finalName> </build></project>2).application-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:context="http://www.springframework.org/schema/context" xmlns:jms="http://www.springframework.org/schema/jms" xsi:schemaLocation="http://www.springframework.org/schema/jms http://www.springframework.org/schema/jms/spring-jms-4.1.xsd http://www.springframework.org/schema/jee http://www.springframework.org/schema/jee/spring-jee-4.1.xsd 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"> <!-- 掃描注解 --> <context:component-scan base-package="com.hsp"> <context:exclude-filter type="annotation" expression="org.springframework.stereotype.Controller" /> </context:component-scan> <!-- 開啟注解 --> <context:annotation-config/> <!-- 創(chuàng)建連接工廠 --> <bean id="connectionFactory" class="org.apache.activemq.ActiveMQConnectionFactory"> <property name="brokerURL"> <value>tcp://localhost:61616</value> </property> </bean> <!-- 創(chuàng)建目的的（這里的ActiveMQQueue代表點對點，如果要使用發(fā)布/訂閱的， 用ActiveMQTopic） --> <bean id="destination" class="org.apache.activemq.command.ActiveMQQueue"> <constructor-arg value="amqMessageQueue"/> </bean> <!-- 創(chuàng)建消息發(fā)布者 --> <bean id="jmsTemplate" class="org.springframework.jms.core.JmsTemplate"> <property name="connectionFactory" ref="connectionFactory" /> <property name="defaultDestination" ref="destination" /> </bean> <!-- 設置監(jiān)聽者監(jiān)聽發(fā)布者 --> <jms:listener-container connection-factory="connectionFactory"> <!-- method代表監(jiān)聽到發(fā)布者發(fā)布消息時做出的反應 --> <jms:listener destination="amqMessageQueue" ref="listener" method="messageReceived" /> </jms:listener-container></beans>3).spring-mvc.xml
<?xml version="1.0" encoding="UTF-8"?><beans:beans xmlns="http://www.springframework.org/schema/mvc" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:beans="http://www.springframework.org/schema/beans" 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.xsd http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc.xsd"> <mvc:annotation-driven /> <context:component-scan base-package="com.hsp.controller" /> <!-- 定義跳轉的文件的前后綴 ，視圖模式配置--> <beans:bean class="org.springframework.web.servlet.view.InternalResourceViewResolver"> <beans:property name="prefix" value="/WEB-INF/" /> <beans:property name="suffix" value=".jsp" /> </beans:bean></beans:beans>4).web.xml
<?xml version="1.0" encoding="UTF-8"?><web-app version="3.1" xmlns="http://xmlns.jcp.org/xml/ns/javaee" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/javaee http://xmlns.jcp.org/xml/ns/javaee/web-app_3_1.xsd"> <!-- 初始化application-context.xml --> <context-param> <param-name>contextConfigLocation</param-name> <param-value> classpath:application-context.xml </param-value> </context-param> <!-- spring-mvc 分派器--> <servlet> <servlet-name>dispatcherServlet</servlet-name> <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class> <init-param> <param-name>contextConfigLocation</param-name> <param-value>classpath:spring-mvc.xml</param-value> </init-param> <load-on-startup>1</load-on-startup> </servlet> <servlet-mapping> <servlet-name>dispatcherServlet</servlet-name> <url-pattern>/</url-pattern> </servlet-mapping> <!-- 編碼過濾器 --> <filter> <filter-name>encodingFilter</filter-name> <filter-class>org.springframework.web.filter.CharacterEncodingFilter</filter-class> <async-supported>true</async-supported> <init-param> <param-name>encoding</param-name> <param-value>UTF-8</param-value> </init-param> </filter> <filter-mapping> <filter-name>encodingFilter</filter-name> <url-pattern>/*</url-pattern> </filter-mapping> <!-- Spring監(jiān)聽器 --> <listener> <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class> </listener></web-app>5).Talk.java
package com.hsp.domain;public class Talk { private String said; public String getSaid() { return said; } public void setSaid(String said) { this.said = said; } public Talk(String said) { this.said = said; }}6).Publisher.java
package com.hsp.jms;import javax.jms.JMSException;import javax.jms.MapMessage;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 com.hsp.domain.Talk;@Service("publisher")public class Publisher { @Autowired private JmsTemplate jmsTemplate; //發(fā)布 public void sendTalk(String said) { Talk talk = new Talk(said); sendMessage(talk); } public void sendMessage(final Talk talk) { //內部類利用jmsTemplate創(chuàng)建session jmsTemplate.send( new MessageCreator() { public Message createMessage(Session session) throws JMSException { MapMessage mapMessage = session.createMapMessage(); mapMessage.setString("said", talk.getSaid()); return mapMessage; } } ); System.out.println("Publisher: " + talk.getSaid()); }}7).Listener.java
package com.hsp.jms;import java.util.Map;import org.springframework.jms.annotation.JmsListener;import org.springframework.stereotype.Service;@Service("listener")public class Listener { //監(jiān)聽 @JmsListener(destination="amqMessageQueue") public void messageReceived(Map<String, Object> message) throws Exception { String said = (String) message.get("said"); System.out.println( "Listener: " + said); }}8).ChattingAction.java
package com.hsp.controller;import javax.servlet.http.HttpServletRequest;import org.slf4j.Logger;import org.slf4j.LoggerFactory;import org.springframework.context.ApplicationContext;import org.springframework.context.support.ClassPathXmlApplicationContext;import org.springframework.stereotype.Controller;import org.springframework.web.bind.annotation.RequestMapping;import org.springframework.web.bind.annotation.RequestMethod;import com.hsp.jms.Listener;import com.hsp.jms.Publisher;@Controllerpublic class ChattingAction{ @RequestMapping(value = "/publish", method = RequestMethod.POST) public String jmsMessagePublish(HttpServletRequest request) { //從sring容器中取出publisher，執(zhí)行發(fā)布的動作 ApplicationContext context = new ClassPathXmlApplicationContext("application-context.xml"); Publisher publisher = (Publisher) context.getBean("publisher"); String said = request.getParameter("said"); publisher.sendTalk(said); //關閉ApplicationContext ((ClassPathXmlApplicationContext)context).close(); return "redirect:/"; }}9).chat.jsp
<%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%><%String path = request.getContextPath();String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/";%><!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"><html> <head> <base href="<%=basePath%>"> <title>chat</title> </head> <body> <div> <form action="/SpringJms/publish" method="post"> <input type="text" name="said"/> <input type='submit' value='publish'/> </form> </div> </body></html>10).index.jsp
<%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%><%String path = request.getContextPath();String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/";%><!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"><html> <head> <base href="<%=basePath%>"> <title>index</title> </head> <body> <jsp:forward page="/WEB-INF/chat.jsp"></jsp:forward> </body></html>11).在瀏覽器訪問：http://localhost:8080/SpringJms/ 即可。
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