使用EJB模块连接到Marklogic

我试图在EMB中使用java中的java api客户端连接到marklogic，如下所示。我在netbeans中创建了一个maven EJB模块项目，并将marklogic依赖项添加到pom中

   <dependency>
        <groupId>com.marklogic</groupId>
        <artifactId>java-client-api</artifactId>
        <version>3.0.1</version>
    </dependency>



    package com.xx.yy;
    import java.io.IOException;
    import java.util.concurrent.atomic.AtomicLong;
    import javax.ejb.ActivationConfigProperty;
    import javax.ejb.MessageDriven;
    import javax.jms.JMSException;
    import javax.jms.Message;
    import javax.jms.MessageListener;
    import javax.jms.TextMessage;
    import javax.xml.xpath.XPathExpressionException;


    @MessageDriven(activationConfig = {
        @ActivationConfigProperty(propertyName = "destinationType", propertyValue = "javax.jms.Topic"),
        @ActivationConfigProperty(propertyName = "destinationLookup", propertyValue = "jms/MyTopic"),
        @ActivationConfigProperty(propertyName = "subscriptionDurability", propertyValue = "Durable"),
        @ActivationConfigProperty(propertyName = "clientId", propertyValue = "jms/MyTopic"),
        @ActivationConfigProperty(propertyName = "subscriptionName", propertyValue = "jms/MyTopic")
    })
    public class CreateBlock implements MessageListener {

        AtomicLong count = new AtomicLong(0);

        public CreateBlock() {
        }

        @Override
        public void onMessage(Message m){
            long i;

            try {
                if (m instanceof TextMessage) {
                    i = count.incrementAndGet();

                    System.out.println("Reading message: " + m.getBody(String.class));
                    GenerateBlock.createblock(m.getBody(String.class));

                } else {
                    System.err.println("Message is not a TextMessage");
                }
            } catch (JMSException e) {
                System.err.println("JMSException in onMessage(): " + e.toString());
            }
            catch ( IOException e){
                System.err.println("IOException in onMessage(): " + e.toString());
            }
            catch (XPathExpressionException e){
                  System.err.println("XPathExpressionException in onMessage(): " + e.toString());

            }
        }
}

**

我可以从一个将文件上传到数据库的JSF应用程序中使用相同的连接代码和参数连接到数据库。然后，它释放客户机，并使用JMS调用上述代码，以便最终对数据进行更多处理，读取和写入marklogic

我应该使用不同类型的项目来使用JMS处理marklogic，还是我的代码有错误

问候

---

鉴于核心错误为：

Caused by: java.lang.NoClassDefFoundError: Could not initialize class com.marklogic.client.DatabaseClientFactory

您可能会遇到环境问题，而不是代码问题——特别是使MarkLogic jar可用于EJB类装入器的问题

顺便说一下，在生产代码中，您可能希望创建一次客户机，并对同一主机上的所有请求重复使用它，而不是为每个请求创建一个新的客户机

每个食谱都是独立的，这就是为什么它们不共享同一个数据库客户端

---

希望这会有所帮助，

也就是说，如果每次配置都是相同的，则重复使用客户机，即主机、端口、用户、数据库。如果其中任何一个不同，您将需要为每个配置单独连接。好的，非常感谢。。我试图在消息侦听器bean中创建连接，但是在其中我没有访问客户端的权限。我将客户端创建移动到会话bean中，该会话bean使用来自消息侦听器的消息，在那里我可以创建数据库连接。

**

Info:   MQJMSRA_MR1101: run:Message returned & marked for routing to the DMQ
    Warning:   MDB00037: [StoneManBuilder:CreateBlock]: Message-driven bean invocation exception: [javax.ejb.EJBException]    
    Warning:   javax.ejb.EJBException
    javax.ejb.EJBException
    at com.sun.ejb.containers.EJBContainerTransactionManager.processSystemException(EJBContainerTransactionManager.java:750)
    at com.sun.ejb.containers.EJBContainerTransactionManager.completeNewTx(EJBContainerTransactionManager.java:700)
    at com.sun.ejb.containers.EJBContainerTransactionManager.postInvokeTx(EJBContainerTransactionManager.java:505)
    at com.sun.ejb.containers.BaseContainer.postInvokeTx(BaseContainer.java:4566)
    at org.glassfish.ejb.mdb.MessageBeanContainer.afterMessageDeliveryInternal(MessageBeanContainer.java:1326)
    at org.glassfish.ejb.mdb.MessageBeanContainer.afterMessageDelivery(MessageBeanContainer.java:1301)
    at org.glassfish.ejb.mdb.MessageBeanListenerImpl.afterMessageDelivery(MessageBeanListenerImpl.java:86)
    at com.sun.enterprise.connectors.inbound.MessageEndpointInvocationHandler.invoke(MessageEndpointInvocationHandler.java:143)
    at com.sun.proxy.$Proxy348.afterDelivery(Unknown Source)
    at com.sun.messaging.jms.ra.OnMessageRunner.run(OnMessageRunner.java:361)
    at com.sun.enterprise.connectors.work.OneWork.doWork(OneWork.java:107)
    at com.sun.corba.ee.impl.threadpool.ThreadPoolImpl$WorkerThread.performWork(ThreadPoolImpl.java:497)
    at com.sun.corba.ee.impl.threadpool.ThreadPoolImpl$WorkerThread.run(ThreadPoolImpl.java:540)
    Caused by: java.lang.NoClassDefFoundError: Could not initialize class com.marklogic.client.DatabaseClientFactory
    at com.kode100.stonemanbuilder.GenerateBlock.createblock(GenerateBlock.java:31)
    at com.kode100.stonemanbuilder.CreateBlock.onMessage(CreateBlock.java:45)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke(Method.java:606)
    at org.glassfish.ejb.security.application.EJBSecurityManager.runMethod(EJBSecurityManager.java:1081)
    at org.glassfish.ejb.security.application.EJBSecurityManager.invoke(EJBSecurityManager.java:1153)
    at com.sun.ejb.containers.BaseContainer.invokeBeanMethod(BaseContainer.java:4786)
    at com.sun.ejb.EjbInvocation.invokeBeanMethod(EjbInvocation.java:656)
    at com.sun.ejb.containers.interceptors.AroundInvokeChainImpl.invokeNext(InterceptorManager.java:822)
    at com.sun.ejb.EjbInvocation.proceed(EjbInvocation.java:608)
    at org.jboss.weld.ejb.AbstractEJBRequestScopeActivationInterceptor.aroundInvoke(AbstractEJBRequestScopeActivationInterceptor.java:73)
    at org.jboss.weld.ejb.SessionBeanInterceptor.aroundInvoke(SessionBeanInterceptor.java:52)
    at sun.reflect.GeneratedMethodAccessor196.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke(Method.java:606)
    at com.sun.ejb.containers.interceptors.AroundInvokeInterceptor.intercept(InterceptorManager.java:883)
    at com.sun.ejb.containers.interceptors.AroundInvokeChainImpl.invokeNext(InterceptorManager.java:822)
    at com.sun.ejb.containers.interceptors.InterceptorManager.intercept(InterceptorManager.java:369)
    at com.sun.ejb.containers.BaseContainer.__intercept(BaseContainer.java:4758)
    at com.sun.ejb.containers.BaseContainer.intercept(BaseContainer.java:4746)
    at org.glassfish.ejb.mdb.MessageBeanContainer.deliverMessage(MessageBeanContainer.java:1219)
    at org.glassfish.ejb.mdb.MessageBeanListenerImpl.deliverMessage(MessageBeanListenerImpl.java:81)
    at com.sun.enterprise.connectors.inbound.MessageEndpointInvocationHandler.invoke(MessageEndpointInvocationHandler.java:171)
    at com.sun.proxy.$Proxy348.onMessage(Unknown Source)
    at com.sun.messaging.jms.ra.OnMessageRunner.run(OnMessageRunner.java:283)
    ... 3 more

Caused by: java.lang.NoClassDefFoundError: Could not initialize class com.marklogic.client.DatabaseClientFactory