无法实例化类：org.jboss.naming.remote.client.InitialContextFactory [英] Cannot instantiate class: org.jboss.naming.remote.client.InitialContextFactory

问题描述

我正在尝试将jboss 7.1.1 final连接到三层架构方法，在我的业务层中保持连接逻辑，并从我的表示层访问此业务层。但它抛出以下异常无法实例化类：org.jboss.naming.remote.client.InitialContextFactory



如果我在相同的演示文稿中保持jboss连接逻辑，它的工作正常层。



以下是我的业务逻辑代码。

  public   static   void  Connect（）
 {
 尝试 
 {
 javax.naming.Context context =  null ; 
 ConnectionFactory connectionFactory; 
连接连接; 
会话会话; 
 字符串 topicName =   jms / topic / TestedTopic; 
目标dest =  null ; 
 MessageConsumer consumer =  null ; 
 TextListener listener =  null ; 
 java.util.Properties jndiProps =  new  java.util.Properties（）; 
 jndiProps.put（Context .__ Fields.INITIAL_CONTEXT_FACTORY，  org.jboss.naming.remote.client.InitialContextFactory ）; 
 jndiProps.put（Context .__ Fields.PROVIDER_URL，  remote：//10.1.7.149：4447< /跨度>）; 
 jndiProps.put（Context .__ Fields.SECURITY_PRINCIPAL，  admin）; 
 jndiProps.put（Context .__ Fields.SECURITY_CREDENTIALS，  admin123）; 
 jndiProps.put（  jboss.naming.client.ejb.context，真）; 
 
 
 context =  new  InitialContext（jndiProps）; 
 
 
 connectionFactory =（ConnectionFactory）context.lookup（  jms / RemoteConnectionFactory ）; 
 connection = connectionFactory.createConnection（）; 
 dest =（Destination）context.lookup（topicName）; 
 session = connection.createSession（ false ，Session .__ Fields.AUTO_ACKNOWLEDGE）; 
 consumer = session.createConsumer（dest）; 
 
 listener =  new  TextListener（）; 
 consumer.setMessageListener（listener）; 
 connection.start（）; 
} 
  catch （例外）
 {
 
  //   throw;  
} 
} 

解决方案

 添加  a   reference     Visual   Studio    不  add  < span class =code-leadattribute> a   reference      已编译 输出。 仅 如果   使用 一个 类 
  in  您的 代码 和 不  via   reflection  < span class =code-leadattribute> a   reference    加入。 
 
      3  选项： 
    best    你 使用  a  完整 合格。 NET   classname 。 此 包括      dll   name 。 
 
 或 你  use   BootClassPathAssemby       http：  //   sourceforge.net/apps/mediawiki/ikvm/ index.php？title = ClassLoader  
 
 
 或 你 使用 一个  class   file  来自    dll  和 使用    AppDomainAssemblyClassLoader 。 详细信息      http：  //   sourceforge.net/apps/mediawiki/ikvm/index.php ？标题=类加载器 

I am trrying to connect jboss 7.1.1 final with Three tier architecture approach keeping connection logic in my business layer and access this business layer from my presentation layer. But it is throwing following exception "Cannot instantiate class: org.jboss.naming.remote.client.InitialContextFactory

Its working fine if i keep jboss connection logic in same presentation layer.

following is my code in business logic.

public static void Connect()
    {
        try
        {
            javax.naming.Context context = null;
            ConnectionFactory connectionFactory;
            Connection connection;
            Session session;
            String topicName = "jms/topic/TestedTopic";
            Destination dest = null;
            MessageConsumer consumer = null;
            TextListener listener = null;
            java.util.Properties jndiProps = new java.util.Properties();
            jndiProps.put(Context.__Fields.INITIAL_CONTEXT_FACTORY, "org.jboss.naming.remote.client.InitialContextFactory");
            jndiProps.put(Context.__Fields.PROVIDER_URL, "remote://10.1.7.149:4447");
            jndiProps.put(Context.__Fields.SECURITY_PRINCIPAL, "admin");
            jndiProps.put(Context.__Fields.SECURITY_CREDENTIALS, "admin123");
            jndiProps.put("jboss.naming.client.ejb.context", true);


            context = new InitialContext(jndiProps);


            connectionFactory = (ConnectionFactory)context.lookup("jms/RemoteConnectionFactory");
            connection = connectionFactory.createConnection();
            dest = (Destination)context.lookup(topicName);
            session = connection.createSession(false, Session.__Fields.AUTO_ACKNOWLEDGE);
            consumer = session.createConsumer(dest);

            listener = new TextListener();
            consumer.setMessageListener(listener);
            connection.start();
        }
        catch (Exception)
        {

            //throw;
        }
    }

解决方案

Adding a reference to Visual Studio does not add a reference in the compiled output. Only if you use one class
in your code and not via reflection a reference is added.

There are 3 options:
The best is you use a full qualified .NET classname. This include also the dll name.

Or you use BootClassPathAssemby like in http://sourceforge.net/apps/mediawiki/ikvm/index.php?title=ClassLoader


Or you use one class file from the dll and use the AppDomainAssemblyClassLoader. Details are at http://sourceforge.net/apps/mediawiki/ikvm/index.php?title=ClassLoader

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