Spring JMS
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<context-param>
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<param-name>contextConfigLocation</param-name>
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<param-value>/WEB-INF/jmsconfig.xml</param-value>
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</context-param>
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<!-- 配置Spring容器 -->
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<listener>
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<listener-class>
org.springframework.web.context.ContextLoaderListener
</listener-class>
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</listener>
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<?xml version="1.0" encoding="UTF-8"?>
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<!DOCTYPE beans PUBLIC "-//SPRING//DTD BEAN//EN"
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"http://www.springframework.org/dtd/spring-beans.dtd">
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<beans>
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<bean id="jmsConnectionFactory"
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class="org.springframework.jndi.JndiObjectFactoryBean">
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<property name="jndiName">
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<value>UIL2ConnectionFactory</value>
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</property>
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</bean>
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<bean id="destination" class="org.springframework.jndi.JndiObjectFactoryBean">
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<property name="jndiName">
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<value>topic/scJms</value>
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</property>
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</bean>
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<!-- Spring JmsTemplate config -->
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<bean id="jmsTemplate" class="org.springframework.jms.core.JmsTemplate">
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<property name="connectionFactory">
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<bean
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class="org.springframework.jms.connection.SingleConnectionFactory">
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<property name="targetConnectionFactory"
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ref="jmsConnectionFactory"/>
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</bean>
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</property>
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</bean>
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<!-- POJO which send Message uses Spring JmsTemplate --> <!--配置消息發送者-->
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<bean id="messageProducer" class="co.transport.jms.MessageProducer">
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<property name="template" ref="jmsTemplate"/>
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<property name="destination" ref="destination"/>
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</bean>
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<!-- Message Driven POJO (MDP) -->
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<bean id="messageListener" class="co.transport.jms.MessageConsumer"/>
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<!-- listener container，MDP無需實現接口 -->
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<bean id="listenerContainer"
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class="org.springframework.jms.listener.DefaultMessageListenerContainer">
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<property name="connectionFactory" ref="jmsConnectionFactory"/>
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<property name="destination" ref="destination"/>
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<property name="messageListener" ref="messageListener"/>
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</bean>
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</beans>
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MessageConsumer.java
4. 寫一個Servlet作爲測試
JmsTest.java（不要忘記在web.xml中配置這個servlet哦！）
5. 在Jboss的deploy/jms目錄下創建sc-jms-service.xml
6. 將工程達成war包直接放到Jboss的deploy目錄下即可，然後啓動Jboss訪問JmsTest這個Servlet，你會在控制檯看到接受到的消息，至此，一個最簡單的Jms實例完成了
Spring框架提供了一個模板機制來隱藏Java APIs的細節。開發人員可以使用JDBCTemplate和JNDITemplate類來分別訪問後臺數據庫和JEE資源（數據源，連接池）。JMS也不例外，Spring提供JMSTemplate類，因此開發人員不用爲一個JMS實現去編寫樣本代碼。接下來是在開發JMS應用程序時Spring所具有一些的優勢。
- 提供JMS抽象API，簡化了訪問目標（隊列或主題）和向指定目標發佈消息時JMS的使用。
- 開發人員不需要關心JMS不同版本（例如JMS 1.0.2與JMS 1.1）之間的差異。
- 開發人員不必專門處理JMS異常，因爲Spring爲所有JMS異常提供了一個未經檢查的異常，並在JMS代碼中重新拋出。
實戰：下面是我在學習過程中的一個入門實例
1. 在web.xml文件中配置一個spring用的上下文：
<context-param> <param-name>contextConfigLocation</param-name> <param-value>/WEB-INF/jmsconfig.xml</param-value></context-param><!-- 配置Spring容器 --><listener> <listener-class>org.springframework.web.context.ContextLoaderListener
</listener-class>
</listener>2. 創建jmsconfig.xml用來裝配jms,內容如下：
<?xml version="1.0" encoding="UTF-8"?> <!DOCTYPE beans PUBLIC "-//SPRING//DTD BEAN//EN" "http://www.springframework.org/dtd/spring-beans.dtd"> <beans> <bean id="jmsConnectionFactory" class="org.springframework.jndi.JndiObjectFactoryBean"> <property name="jndiName"> <value>UIL2ConnectionFactory</value> </property> </bean> <bean id="destination" class="org.springframework.jndi.JndiObjectFactoryBean"> <property name="jndiName"> <value>topic/scJms</value> </property> </bean> <!-- Spring JmsTemplate config --> <bean id="jmsTemplate" class="org.springframework.jms.core.JmsTemplate"> <property name="connectionFactory"> <bean class="org.springframework.jms.connection.SingleConnectionFactory"> <property name="targetConnectionFactory" ref="jmsConnectionFactory"/> </bean> </property> </bean> <!-- POJO which send Message uses Spring JmsTemplate --> <!--配置消息發送者--> <bean id="messageProducer" class="co.transport.jms.MessageProducer"> <property name="template" ref="jmsTemplate"/> <property name="destination" ref="destination"/> </bean> <!-- Message Driven POJO (MDP) --> <bean id="messageListener" class="co.transport.jms.MessageConsumer"/> <!-- listener container，MDP無需實現接口 --> <bean id="listenerContainer" class="org.springframework.jms.listener.DefaultMessageListenerContainer"> <property name="connectionFactory" ref="jmsConnectionFactory"/> <property name="destination" ref="destination"/> <property name="messageListener" ref="messageListener"/> </bean></beans>其中：
1) jmsConnectionFactory用的是Jboss自帶的一個ConnectionFactory，可以在Jboss的deploy/jms目錄下的uil2-service.xml文件中找到。
2) destination使用自定義的，需要在Jboss加一個配置文件，下面會介紹。
3) MessageProducer是消息發送方
4) MessageConsumer實現了一個MessageListener，監聽是否收到消息。
3. 發送和接收消息的class如下：
MessageProducer.java
public class MessageProducer {
private JmsTemplate template;
private Destination destination;
public void send(final String message) {
template.send(destination, new MessageCreator() {
public Message createMessage(Session session) throws JMSException {
Message m = session.createTextMessage(message);
return m;
}
});
}
public void setDestination(Destination destination) {
this.destination = destination;
}
public void setTemplate(JmsTemplate template) {
this.template = template;
}
}
private JmsTemplate template;
private Destination destination;
public void send(final String message) {
template.send(destination, new MessageCreator() {
public Message createMessage(Session session) throws JMSException {
Message m = session.createTextMessage(message);
return m;
}
});
}
public void setDestination(Destination destination) {
this.destination = destination;
}
public void setTemplate(JmsTemplate template) {
this.template = template;
}
}
MessageConsumer.java
public class MessageConsumer implements MessageListener {
public void onMessage(Message message) {
System.out.println("****************************************");
System.out.println(message);
}
}
public void onMessage(Message message) {
System.out.println("****************************************");
System.out.println(message);
}
}
4. 寫一個Servlet作爲測試
JmsTest.java（不要忘記在web.xml中配置這個servlet哦！）
public class JmsTest extends HttpServlet {
public void service(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
PrintWriter pw = response.getWriter();
pw.println("<html>");
pw.println("<head>");
pw.println("</head>");
pw.println("<body>");
try {
ServletContext servletContext = this.getServletContext();
WebApplicationContext wac = WebApplicationContextUtils
.getRequiredWebApplicationContext(servletContext);
MessageProducer mp = (MessageProducer) wac.getBean("messageProducer");
mp.send("Message!!!!");
pw.println("<h3>success</h3>");
} catch (JmsException e) {
pw.println(e);
}
pw.println("</body>");
pw.println("</html>");
}
}
public void service(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
PrintWriter pw = response.getWriter();
pw.println("<html>");
pw.println("<head>");
pw.println("</head>");
pw.println("<body>");
try {
ServletContext servletContext = this.getServletContext();
WebApplicationContext wac = WebApplicationContextUtils
.getRequiredWebApplicationContext(servletContext);
MessageProducer mp = (MessageProducer) wac.getBean("messageProducer");
mp.send("Message!!!!");
pw.println("<h3>success</h3>");
} catch (JmsException e) {
pw.println(e);
}
pw.println("</body>");
pw.println("</html>");
}
}
5. 在Jboss的deploy/jms目錄下創建sc-jms-service.xml
<?xml version="1.0" encoding="UTF-8"?>
<server>
<mbean code="org.jboss.mq.server.jmx.Topic"
name="jboss.mq.destination:service=Topic,name=somcJms">
<depends optional-attribute-name="DestinationManager">
jboss.mq:service=DestinationManager
</depends>
<depends optional-attribute-name="SecurityManager">
jboss.mq:service=SecurityManager
</depends>
<attribute name="SecurityConf">
<security>
<role name="guest" read="true" write="true"/>
<role name="publisher" read="true" write="true" create="false"/>
<role name="durpublisher" read="true" write="true" create="true"/>
</security>
</attribute>
</mbean>
</server>
<server>
<mbean code="org.jboss.mq.server.jmx.Topic"
name="jboss.mq.destination:service=Topic,name=somcJms">
<depends optional-attribute-name="DestinationManager">
jboss.mq:service=DestinationManager
</depends>
<depends optional-attribute-name="SecurityManager">
jboss.mq:service=SecurityManager
</depends>
<attribute name="SecurityConf">
<security>
<role name="guest" read="true" write="true"/>
<role name="publisher" read="true" write="true" create="false"/>
<role name="durpublisher" read="true" write="true" create="true"/>
</security>
</attribute>
</mbean>
</server>
6. 將工程達成war包直接放到Jboss的deploy目錄下即可，然後啓動Jboss訪問JmsTest這個Servlet，你會在控制檯看到接受到的消息，至此，一個最簡單的Jms實例完成了
