????? 讓我們從一個例子開始。
????? 首先我們打開ActiveMQ。從ActiveMQ的安裝路徑上的bin目錄,那里有一個ActiveMQ.bat,雙擊執行即可。不過要注意必須先設置java_home環境變量。ActiveMQ默認的服務端口是61616。
????? 然后我們開始配置Spring配置文件。我起名為spring-jms.xml
- 首先要配置一個ConnectionFactory代碼如下
?<bean id="connectionFactory"
??????? class="org.apache.activemq.ActiveMQConnectionFactory">
??????? <property name="brokerURL" value="tcp://localhost:61616" />
</bean>
geronimo-jms_1.1_spec-1.0.jar,
activeio-core-3.0-beta3.jar,
activemq-core-4.0.1.jar,
backport-util-concurrent-2.1.jar,
commons-logging-1.0.4.jar,
geronimo-j2ee-management_1.0_spec-1.0.jar
以上這些Jar文件都存在于ActiveMQ安裝目錄的lib目錄下,這些可是我一個一個試驗出來的,累個半死。。
<bean id="jmsTemplate"
??????? class="org.springframework.jms.core.JmsTemplate102">
??????? <property name="connectionFactory" ref="connectionFactory"/>
??????? <property name="timeToLive" value="86400000"/>
??????? <property name="defaultDestinationName" value="cmpp" />
??????? <property name="messageConverter" ref="messageConverter" />
??????? <property name="receiveTimeout" value="30000" />
??? </bean>
上面的配置中用到了第一步配置的connectionFactory以及一個消息轉換的類 messageConverter,這個類實現了 org.springframework.jms.support.converter.MessageConverter接口,可以在消息發送之前和接受之后進行消息類型轉換。具體的看最后的實例代碼。配置代碼如下:
?<!-- Spring JMS SimpleConverter -->
?????? <bean id="simpleConverter"? class="org.springframework.jms.support.converter.SimpleMessageConverter" />
<!-- Message Converter -->
??? <bean id="messageConverter"
??????? class="com.liangj.apmgt.jms.ApmgtMessageConverter">
??????? <property name="converter">
??????????? <ref local="simpleConverter" />
??????? </property>
??? </bean>
4。配置發送代碼
??? <bean id="producer"
??????? class="com.liangj.apmgt.jms.DefaultApmgtMessageProducer">
??????? <property name="jmsTemplate" ref="jmsTemplate" />
??? </bean>
5。接著配置監聽器,這是Spring2.0新增的功能,配置如下:
<!-- this is the Message Driven POJO (MDP) -->
??? <bean id="messageListener"
??????? class="org.springframework.jms.listener.adapter.MessageListenerAdapter">
??????? <constructor-arg>
??????????? <bean
??????????????? class="com.liangj.apmgt.jms.DefaultApmgtMessageListener" />
??????? </constructor-arg>
??????? <property name="defaultListenerMethod" value="onMessage" />
??????? <property name="messageConverter" ref="messageConverter" />
??? </bean>
??? <!-- and this is the attendant message listener container -->
??? <bean id="listenerContainer"
??????? class="org.springframework.jms.listener.DefaultMessageListenerContainer">
??????? <property name="connectionFactory" ref="connectionFactory" />
??????? <property name="destinationName" value="${jms.destinationName.cmpp}" />
??????? <property name="messageSelector" value="${jms.messageSelector}" />
??????? <property name="messageListener" ref="messageListener" />
??? </bean>
?Spring配置監聽器有很多種選擇,在這里我選擇這回種MessageListenerAdapter方法主要是因為這個方法比較靈活。實現他只要一個很普通的java類即可,和JMS以及Spring的耦合度最低。其中方法onMessage可以隨便修改方法名,只要在配置文件中對應的修改就好了。
???? MessageListenerAdapter還有一個功能就是如果處理方法(我這里是onMessage)返回一個非空值,它將自動返回一個響應消息。這個消息會返回給JMS Reply-To屬性定義的目的地(如果存在),或者是MessageListenerAdapter設置(如果配置了)的缺省目的地;如果沒有定義目的地,那么將產生一個InvalidDestinationException異常(此異常將不會只被捕獲而不處理,它將沿著調用堆棧上傳)。
???? 這樣我們的配置就都完成了。接下來我們來實現對應的Java文件
先是接口文件發送消息接口IApmgtMessageProducer.java
public interface IApmgtMessageProducer {
??? public abstract void sendMessage(ApmgtMessageData messageData);
}
接受消息接口IApmgtMessageListener.java
public interface IApmgtMessageListener {
??? public void onMessage(ApmgtMessageData message);
}
發消息的文件DefaultApmgtMessageProducer.java
?public class DefaultApmgtMessageProducer implements IApmgtMessageProducer {
???
??? private JmsTemplate jmsTemplate;
??? public void setJmsTemplate(JmsTemplate jmsTemplate) {
??????? this.jmsTemplate = jmsTemplate;
??? }
??? public void sendMessage(ApmgtMessageData messageData) {
??????? this.jmsTemplate.convertAndSend(messageData);
??? }
}
收消息文件DefaultApmgtMessageListener.java
public class DefaultApmgtMessageListener implements IApmgtMessageListener {
??? public void onMessage(ApmgtMessageData message) {
??????? System.out.println("監聽到消息:"+message);
??? }
}
消息轉換類ApmgtMessageConverter.java
public class ApmgtMessageConverter implements MessageConverter {
??? private Log log = LogFactory.getLog(ApmgtMessageConverter.class);
??? private SimpleMessageConverter converter;
??? public void setConverter(SimpleMessageConverter converter) {
??????? this.converter = converter;
??? }
??? public Object fromMessage(Message message) throws JMSException, MessageConversionException {
??????? if (message instanceof ObjectMessage) {
??????????? ObjectMessage o_message = (ObjectMessage)message;
??????????? MessageHeader header = new MessageHeader();
??????????? header.setId(message.getLongProperty("id"));
??????????? header.setReceiver(message.getIntProperty("receiver"));
??????????? header.setSender(message.getIntProperty("sender"));
??????????? header.setSendPerson(message.getStringProperty("sendPerson"));
??????????? header.setType(message.getIntProperty("type"));
??????????? Serializable messageContent = o_message.getObject();
??????????? ApmgtMessageData<Serializable> messageData = new ApmgtMessageData<Serializable>();
??????????? messageData.setMessageContent(messageContent);
??????????? messageData.setMessageHeader(header);
??????????? return messageData;
??????? }
??????? return null;
??? }
??? public Message toMessage(Object object, Session session) throws JMSException, MessageConversionException {
??????? if (object instanceof ApmgtMessageData) {
??????????? ApmgtMessageData data = (ApmgtMessageData) object;
??????????? Message message = converter.toMessage(data.getMessageContent(), session);
??????????? message.setLongProperty("id", data.getMessageHeader().getId());
??????????? message.setIntProperty("receiver", data.getMessageHeader().getReceiver());
??????????? message.setIntProperty("sender", data.getMessageHeader().getSender());
??????????? message.setIntProperty("type", data.getMessageHeader().getType());
??????????? message.setStringProperty("sendPerson", data.getMessageHeader().getSendPerson());
??????????? log.info("發送消息[MessageSender]:\n" + message);
???????????? return message;
??????? } else {
??????????? return null;
??????? }
??? }
}
消息類文件? 消息父類:ApmgtMessageData.java
public class ApmgtMessageData<T extends Serializable>{
??? protected T messageContent;
???
??? protected MessageHeader messageHeader;
??? public T getMessageContent() {
??????? return this.messageContent;
??? }
??? public MessageHeader getMessageHeader() {
??????? return this.messageHeader;
??? }
??? public void setMessageContent(T messageContent) {
??????? this.messageContent = messageContent;
??? }
??? public void setMessageHeader(MessageHeader messageHeader) {
??????? this.messageHeader = messageHeader;
??? }
}
消息屬性的一個類MessageHeader.java
public class MessageHeader {
??? /**
???? * 消息ID
???? */
??? private long id;
??? /**
???? * 消息類型
???? */
??? private int type;
??? /**
???? * 消息發送方,發送消息的模塊
???? */
??? private int sender;
??? /**
???? * 消息接收方,接收消息的模塊
???? */
??? private int receiver;
??? /**
???? * 消息發送者,具體的用戶
???? */
??? private String sendPerson;
??? public MessageHeader(){
??????? this.id = System.currentTimeMillis() ;
??? }
???
??? public long getId() {
??????? return id;
??? }
??? public void setId(long id) {
??????? this.id = id;
??? }
??? public String getSendPerson() {
??????? return sendPerson;
??? }
??? public void setSendPerson(String sendPerson) {
??????? this.sendPerson = sendPerson;
??? }
??? public int getReceiver() {
??????? return receiver;
??? }
??? public void setReceiver(int receiver) {
??????? this.receiver = receiver;
??? }
??? public int getSender() {
??????? return sender;
??? }
??? public void setSender(int sender) {
??????? this.sender = sender;
??? }
??? public int getType() {
??????? return type;
??? }
??? public void setType(int type) {
??????? this.type = type;
??? }
}
消息體的類ModPasswordRequest.java
public class ModPasswordRequest implements Serializable{
??? private static final long serialVersionUID = 1L;
??? /**
???? * 舊密碼
???? */
??? private String oldPassword;
???
??? /**
???? * 新密碼
???? */
??? private String newPassword;
??? public String getNewPassword() {
??????? return newPassword;
??? }
??? public void setNewPassword(String newPassword) {
??????? this.newPassword = newPassword;
??? }
??? public String getOldPassword() {
??????? return oldPassword;
??? }
??? public void setOldPassword(String oldPassword) {
??????? this.oldPassword = oldPassword;
??? }
}
消息類:ApmgtModPasswordRequest.java
public class ApmgtModPasswordRequest extends ApmgtMessageData<ModPasswordRequest> {
???
???
???
??? private static final int REQ_MODPASSWORD = 0;
??? private static final int INTF = 1;
??? private static final int APMGT = 2;
??? public void init(){
??????? messageHeader = new MessageHeader();
??????? messageContent = new ModPasswordRequest();
??????? messageHeader.setType(REQ_MODPASSWORD);
??????? messageHeader.setSender(INTF);
??????? messageHeader.setReceiver(APMGT);
??????? messageContent.setNewPassword("123456");
??????? messageContent.setOldPassword("654321");
??? }
??
}
最后是測試類Main.java
??? public class Main {
??? public static void main(final String[] args) throws Exception {
???????
??????? PropertyConfigurator.configure("log4j.properties");
???????
??????? AbstractApplicationContext ctx = new ClassPathXmlApplicationContext(new String[] { "spring-jms.xml" });
//??????? ctx.registerShutdownHook();
???????
??????? IApmgtMessageProducer producer = (IApmgtMessageProducer)ctx.getBean("producer");
???????
??????? ApmgtModPasswordRequest messageData = new ApmgtModPasswordRequest();
??????? messageData.setMessageHeader(new MessageHeader());
??????? messageData.setMessageContent(new ModPasswordRequest());
??????? messageData.init();
???????
??????? producer.sendMessage(messageData);
??? }
}
還有兩個配置文件,第一個spring-jms.xml
<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="[url]http://www.springframework.org/schema/beans"[/url]
??? xmlns:xsi="[url]http://www.w3.org/2001/XMLSchema-instance"[/url]
??? xsi:schemaLocation="[url]http://www.springframework.org/schema/beans[/url] [url]http://www.springframework.org/schema/beans/spring-beans.xsd">[/url]
??? <bean id="propertyConfigurer"
??????? class="org.springframework.beans.factory.config.PropertyPlaceholderConfigurer">
??????? <property name="locations">
??????????? <list>
??????????????? <value>apmgt.properties</value>
??????????? </list>
??????? </property>
??? </bean>
??? <!-- ####################################### -->
??? <!--????????? JMS Spring Beans?????????????? -->
??? <!-- ####################################### -->
??? <!-- Jms ConnectionFactory -->
??? <bean id="connectionFactory"
??????? class="org.apache.activemq.ActiveMQConnectionFactory">
??????? <property name="brokerURL" value="${jms.brokerURL}" />
??? </bean>
??? <!-- Spring JMS SimpleConverter -->
??? <bean id="simpleConverter"
??????? class="org.springframework.jms.support.converter.SimpleMessageConverter" />
??? <!-- JMS Queue Template -->
??? <bean id="jmsTemplate"
??????? class="org.springframework.jms.core.JmsTemplate102">
??????? <property name="connectionFactory" ref="connectionFactory"/>
??????? <property name="timeToLive" value="${jms.timeToLive}"/>
??????? <property name="defaultDestinationName" value="${jms.destinationName.cmpp}" />
??????? <property name="messageConverter" ref="messageConverter" />
??????? <property name="receiveTimeout" value="${jms.receiveTimeout}" />
??? </bean>
??? <!-- Message Converter -->
??? <bean id="messageConverter"
??????? class="com.liangj.apmgt.jms.ApmgtMessageConverter">
??????? <property name="converter">
??????????? <ref local="simpleConverter" />
??????? </property>
??? </bean>
??? <!-- Message porducer -->
??? <bean id="producer"
??????? class="com.liangj.apmgt.jms.DefaultApmgtMessageProducer">
??????? <property name="jmsTemplate" ref="jmsTemplate" />
??? </bean>
??? <!-- this is the Message Driven POJO (MDP) -->
??? <bean id="messageListener"
??????? class="org.springframework.jms.listener.adapter.MessageListenerAdapter">
??????? <constructor-arg>
??????????? <bean
??????????????? class="com.liangj.apmgt.jms.DefaultApmgtMessageListener" />
??????? </constructor-arg>
??????? <property name="defaultListenerMethod" value="onMessage" />
??????? <property name="messageConverter" ref="messageConverter" />
??? </bean>
??? <!-- and this is the attendant message listener container -->
??? <bean id="listenerContainer"
??????? class="org.springframework.jms.listener.DefaultMessageListenerContainer">
??????? <property name="connectionFactory" ref="connectionFactory" />
??????? <property name="destinationName" value="${jms.destinationName.cmpp}" />
??????? <property name="messageSelector" value="${jms.messageSelector}" />
??????? <property name="messageListener" ref="messageListener" />
??? </bean>
</beans>
apmgt.properties
#jms properties
jms.brokerURL=tcp://localhost:61616
jms.receiveTimeout=3000
jms.destinationName.cmpp=cmpp
jms.messageSelector=receiver=2
#one day is 86400000 ms. 0 is means that it lives forever.
jms.timeToLive=86400000
轉:http://blog.iecn.net/blog/html/do-showone-tid-1035.html