Question

我试图运行以下代码：

EmbeddedActiveMQ server = new EmbeddedActiveMQ();
server.setConfiguration(new ConfigurationImpl()
        .setAcceptorConfigurations(singleton(new TransportConfiguration(
                InVMAcceptorFactory.class.getName())))
        .setPersistenceEnabled(false)
        .setSecurityEnabled(false));
server.start();

ConnectionFactory cf = new ActiveMQConnectionFactory("vm://0");
Connection connection = cf.createConnection();

但是我有这个例外：

javax.jms.JMSException: Could not create Transport. Reason: java.io.IOException: Transport scheme NOT recognized: [vm]
    at org.apache.activemq.util.JMSExceptionSupport.create(JMSExceptionSupport.java:36)
    at org.apache.activemq.ActiveMQConnectionFactory.createTransport(ActiveMQConnectionFactory.java:333)
    at org.apache.activemq.ActiveMQConnectionFactory.createActiveMQConnection(ActiveMQConnectionFactory.java:346)
    at org.apache.activemq.ActiveMQConnectionFactory.createActiveMQConnection(ActiveMQConnectionFactory.java:304)
    at org.apache.activemq.ActiveMQConnectionFactory.createConnection(ActiveMQConnectionFactory.java:244)
    at com.hazelcast.jet.examples.jms.JmsTopicSample.main(JmsTopicSample.java:84)
Caused by: java.io.IOException: Transport scheme NOT recognized: [vm]
    at org.apache.activemq.util.IOExceptionSupport.create(IOExceptionSupport.java:28)
    at org.apache.activemq.transport.TransportFactory.findTransportFactory(TransportFactory.java:185)
    at org.apache.activemq.transport.TransportFactory.connect(TransportFactory.java:64)
    at org.apache.activemq.ActiveMQConnectionFactory.createTransport(ActiveMQConnectionFactory.java:331)
    ... 4 more
Caused by: java.io.IOException: Could not find factory class for resource: META-INF/services/org/apache/activemq/transport/vm
    at org.apache.activemq.util.FactoryFinder$StandaloneObjectFactory.loadProperties(FactoryFinder.java:98)
    at org.apache.activemq.util.FactoryFinder$StandaloneObjectFactory.create(FactoryFinder.java:60)
    at org.apache.activemq.util.FactoryFinder.newInstance(FactoryFinder.java:148)
    at org.apache.activemq.transport.TransportFactory.findTransportFactory(TransportFactory.java:182)
    ... 6 more

我在网上可以找到的所有信息都表明我缺少对类路径的依赖，但是没有一个因vm协议而失败。

Answer 1

原来，我使用了错误的导入。我用过：

org.apache.activemq.ActiveMQConnectionFactory

但我应该使用过：

org.apache.activemq.artemis.jms.client.ActiveMQConnectionFactory

出于某种原因，apache-artemis:2.10.1包括对activemq版本5中activemq-client的依赖，其中包括另一个类。

Answer 2

如果您遇到此错误并且未使用 Apache Artemis，请确保 activemq-broker 位于类路径中。

ActiveMQ Artemis传输方案无法识别[vm]错误

2 个答案: