javax.naming.NameNotFoundException：尝试查找'abc'时没有找到子上下文'abc' [英] javax.naming.NameNotFoundException: While trying to lookup 'abc' didn't find subcontext 'abc'

问题描述

我开发了一个带有Remote接口的EJB应用程序。这个应用程序部署在weblogic 12上。

I've developed a EJB application, with a Remote interface. This application was deployed on weblogic 12.

使用java应用程序，我正在尝试使用我的EJB应用程序，但是当我从类InitialContext调用方法查找时，我得到了此消息javax.naming.NameNotFoundException：尝试查找'NewSessionBean.remote'时未找到子上下文'NewSessionBean'

With a java application, i'm trying use my EJB application, but when I call method lookup from the class InitialContext, i get this message "javax.naming.NameNotFoundException: While trying to lookup 'NewSessionBean.remote' didn't find subcontext 'NewSessionBean"

这是来自远程接口的代码：

This is code from remote interface:

package co.com.tutorial.stateless;

import java.util.List;
import javax.ejb.Remote;

/**
 *
 * @author jquintep
 */
@Remote
public interface NewSessionBeanRemote {

    void addBook(String bookName);

    List getBooks();
}

这是实施代码的一部分：

This is part of the code from implementation:

package co.com.tutorial.stateless;

import java.util.ArrayList;
import java.util.List;
import javax.ejb.Stateless;

/**
 *
 * @author jquintep
 */
@Stateless
public class NewSessionBean implements NewSessionBeanRemote {

    List<String> bookShelf;

    public NewSessionBean() {
        bookShelf = new ArrayList<String>();
    }

当我调用lookup时，这是代码的一部分：

And this is a part of the code when i call lookup:

 try {
         int choice = 1; 
         NewSessionBeanRemote  libraryBean = 
         (NewSessionBeanRemote)ctx.lookup("NewSessionBean/remote");

感谢您考虑我的请求。

PS
我正在关注tutorialspoint上的EJB教程。

PS I am following the EJB tutorial at tutorialspoint.

推荐答案

你可以通过以下路径看到你的JNDI树Weblogic的控制台

You could see your JNDI tree through the following path in Weblogic's console

环境 - >服务器 - >选择你的服务器 - >点击查看JNDI树链接

Environment -> servers -> select your server -> click on view JNDI tree link

I总是检查JNDI树是否存在查找问题。

I always check JNDI tree for lookup problems.

为什么不使用JNDI可移植名称进行查找？

Why do not you use JNDI portable name for lookup?

https://docs.oracle.com/cd/E19798-01/821-1841/girgn/index.html

如果你有将您的实现部署为单独的EAR，您可以使用以下查找

If you had deployed your implementation as a separate EAR, you could use the following lookup

ctx.lookup("java:global/[your ear name]/[your jar file name(module name)]/NewSessionBean!co.com.tutorial.stateless.NewSessionBeanRemote");

如果您已将实现部署为单独的jar，则可以使用以下查找

If you had deployed your implementation as a separate jar, you could use the following lookup

ctx.lookup("java:global/[your jar file name(module name)]/NewSessionBean!co.com.tutorial.stateless.NewSessionBeanRemote");

如果你想在同一个EAR中查找但是在另一个罐子里

If you want to look up in the same EAR but in a different jar

ctx.lookup("java:app/[your jar file name(module name)]/NewSessionBean!co.com.tutorial.stateless.NewSessionBeanRemote");

如果你想在同一个EAR和同一个罐子中查找

If you want to look up in the same EAR and in the same jar

ctx.lookup("java:module//NewSessionBean!co.com.tutorial.stateless.NewSessionBeanRemote");

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