我使用ActiveMq作爲JMS服務器和Atomikos作爲事務管理器。使用ActiveMq和Atomikos兩次出列的JMS消息
關於ActiveMq管理員web界面我看到一條消息已入隊,但2(!)消息已出隊。
但是,jms消費者只處理消息一次,沒有重複處理。當我使用簡單的Spring JmsTransactionManager時,有一個入隊消息和一個出隊消息。該問題僅出現在Atomikos JTA交易管理器中。
什麼問題?如何配置Atomikos不會看到兩次出隊郵件?
我的配置如下。它和教程中的幾乎一樣。順便說一下,Atomikos的Spring集成示例運行良好,但它使用Spring 2.0,而我使用Spring 3.1。
<bean id="activeMqXaConnectionFactory" class="org.apache.activemq.spring.ActiveMQXAConnectionFactory">
<property name="brokerURL" value="tcp://localhost:61616"/>
</bean>
<bean id="atomikosQueueConnectionFactory" class="com.atomikos.jms.QueueConnectionFactoryBean" init-method="init">
<property name="resourceName" value="xaMq"/>
<property name="xaQueueConnectionFactory" ref="activeMqXaConnectionFactory"/>
</bean>
<bean id="singleConnectionFactory" class="org.springframework.jms.connection.SingleConnectionFactory">
<property name="targetConnectionFactory" ref="atomikosQueueConnectionFactory"/>
</bean>
<bean id="jmsDefaultContainer" class="org.springframework.jms.listener.DefaultMessageListenerContainer">
<property name="connectionFactory" ref="singleConnectionFactory"/>
<property name="messageListener" ref="consumer"/>
<property name="concurrentConsumers" value="1"/>
<property name="destinationName" value="q.jtaxa"/>
<property name="receiveTimeout" value="3000"/>
<property name="recoveryInterval" value="5000"/>
<property name="transactionManager" ref="transactionManager"/>
<property name="sessionTransacted" value="true"/>
</bean>
<!-- Transactions -->
<!--Construct Atomikos UserTransactionManager, needed to configure Spring-->
<bean id="atomikosTransactionManager" class="com.atomikos.icatch.jta.UserTransactionManager" init-method="init"
destroy-method="close">
<!-- when close is called, should we force transactions to terminate or not? -->
<property name="forceShutdown" value="true"/>
</bean>
<!-- Also use Atomikos UserTransactionImp, needed to configure Spring -->
<bean id="atomikosUserTransaction" class="com.atomikos.icatch.jta.UserTransactionImp">
<property name="transactionTimeout" value="300"/>
</bean>
<!-- Configure the Spring framework to use JTA transactions from Atomikos -->
<bean id="transactionManager" class="org.springframework.transaction.jta.JtaTransactionManager">
<property name="transactionManager" ref="atomikosTransactionManager"/>
<property name="userTransaction" ref="atomikosUserTransaction"/>
<property name="nestedTransactionAllowed" value="true"/>
</bean>
消費類:
@Component
public class Consumer implements MessageListener {
@Override
public void onMessage(Message message) {
if (message instanceof TextMessage) {
try {
TextMessage textMsg = (TextMessage) message;
System.out.println(" " + textMsg.getText());
} catch (JMSException ex) {
ex.printStackTrace();
}
}
}
}