EJB3 Glassfish JNDI查找 [英] EJB3 Glassfish JNDI lookup
本文介绍了EJB3 Glassfish JNDI查找的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着小编来一起学习吧!
问题描述
我正在使用Glassfish捆绑的Eclipse IDE。我编写了一个简单的EJB应用程序。但它不起作用。
I am using Glassfish-bundled Eclipse IDE. I wrote a simple EJB application. but it doesn't work.
@Stateless
@Remote(CalculatorRemote.class)
@Local(CalculatorLocal.class)
public class Calculator implements CalculatorRemote, CalculatorLocal {
@Override
public String sayHello(String name) {
System.out.println("ejb:"+name);
return null;
}
}
----
@Remote
public interface CalculatorRemote {
public String sayHello(String name);
}
-------
@Local
public interface CalculatorLocal {
public String sayHello(String name);
}
我写了一个独立的客户端进行测试,但是失败了。找不到JNDI。
I wrote a standalone client to test, but failed. can't find JNDI.
public class Main {
public static void main(String[] args) throws Exception {
InitialContext ctx = new InitialContext();
CalculatorRemote bean = (CalculatorRemote) ctx.lookup("java:global/TestEAR/TEjb/Calculator!com.CalculatorRemote");
bean.sayHello("Billy Bob");
}
}
在服务器中日志,它说
INFO: Portable JNDI names for EJB Calculator : [java:global/TestEAR/TEjb/Calculator!com.CalculatorRemote, java:global/TestEAR/TEjb/Calculator!com.CalculatorLocal]
INFO: Glassfish-specific (Non-portable) JNDI names for EJB Calculator : [com.CalculatorRemote, com.CalculatorRemote#com.CalculatorRemote]
我也尝试过
ctx.lookup("com.CalculatorRemote")
仍然不工作。
错误消息是
java.lang.NullPointerException
at com.sun.enterprise.naming.impl.SerialContext.getRemoteProvider(SerialContext.java:297)
at com.sun.enterprise.naming.impl.SerialContext.getProvider(SerialContext.java:271)
at com.sun.enterprise.naming.impl.SerialContext.lookup(SerialContext.java:430)
at javax.naming.InitialContext.lookup(InitialContext.java:392)
at com.Main.main(Main.java:9)
Exception in thread "main" javax.naming.NamingException: Lookup failed for 'java:global/TestEAR/TEjb/Calculator!com.CalculatorRemote' in SerialContext [Root exception is javax.naming.NamingException: Unable to acquire SerialContextProvider for SerialContext [Root exception is java.lang.NullPointerException]]
at com.sun.enterprise.naming.impl.SerialContext.lookup(SerialContext.java:442)
at javax.naming.InitialContext.lookup(InitialContext.java:392)
at com.Main.main(Main.java:9)
Caused by: javax.naming.NamingException: Unable to acquire SerialContextProvider for SerialContext [Root exception is java.lang.NullPointerException]
at com.sun.enterprise.naming.impl.SerialContext.getProvider(SerialContext.java:276)
at com.sun.enterprise.naming.impl.SerialContext.lookup(SerialContext.java:430)
... 2 more
Caused by: java.lang.NullPointerException
at com.sun.enterprise.naming.impl.SerialContext.getRemoteProvider(SerialContext.java:297)
at com.sun.enterprise.naming.impl.SerialContext.getProvider(SerialContext.java:271)
... 3 more
请帮助我。
推荐答案
是否可以添加上述行:
Properties props = new Properties();
props.put(Context.INITIAL_CONTEXT_FACTORY, "com.sun.enterprise.naming.SerialInitContextFactory");
props.setProperty("org.omg.CORBA.ORBInitialHost", "localhost");
// glassfish default port value will be 3700,
props.setProperty("org.omg.CORBA.ORBInitialPort", "3700");
InitialContext ctx = new InitialContext(props);
CalculatorRemote bean = (CalculatorRemote) ctx.lookup("java:global/TestEAR/TEjb/Calculator! com.CalculatorRemote");
我在这里使用EJB3x和Glassfish v3创建了一个博客文章。
http:// anirbanchowdhury。 wordpress.com/2012/06/07/ejb-3-application-in-glassfish-3x/
I have created a blog post here using EJB3x with Glassfish v3. http://anirbanchowdhury.wordpress.com/2012/06/07/ejb-3-application-in-glassfish-3x/
这篇关于EJB3 Glassfish JNDI查找的文章就介绍到这了,希望我们推荐的答案对大家有所帮助,也希望大家多多支持IT屋!
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