求教：初学EJB遇到问题

2013-12-10 09:26:21 736 阅读 AI 写同款 · GEO 优化AI 选题数据监测一键分发 ›

MAPPO实战：从理论到代码的协作智能体训练指南本文详细介绍了MAPPO算法在多智能体协作训练中的实战应用，从理论基础到代码实现全面解析。通过对比PPO与MAPPO的差异，深入讲解CTDE框架、网络架构设计、参数调优等关键环节，并提供实际项目中的调参经验和常见问题解决方案，帮助开发者快速掌握这一强化学习前沿技术。阅读详情



public interface HelloWorldRemote {



	String name();

}



public interface HelloWorldLocal extends HelloWorldRemote{}



@Stateless

@Remote(HelloWorldRemote.class)

@Local(HelloWorldLocal.class)

public class HelloWorld implements HelloWorldRemote, HelloWorldLocal {

	@Override

	public String name() {

		return "getName";

	}

}



public static void main(String[] args) throws NamingException {

		Properties props = new Properties();

		props.setProperty(Context.INITIAL_CONTEXT_FACTORY,

				"org.jnp.interfaces.NamingContextFactory");

		props.setProperty(Context.PROVIDER_URL, "127.0.0.1:1099");

		props.setProperty(Context.URL_PKG_PREFIXES, "org.jboss.naming");

		InitialContext ctx = new InitialContext(props);

		HelloWorldRemote remote = (HelloWorldRemote) ctx.lookup("HelloWorld/remote");

		System.out.println(remote.name());

	}

用的是JBOSS7发布的

运行JBOSS的standalone.bat

异常信息：
Exception in thread "main" javax.naming.CommunicationException: Receive timed out [Root exception is java.net.SocketTimeoutException: Receive timed out]
at org.jnp.interfaces.NamingContext.discoverServer(NamingContext.java:1115)
at org.jnp.interfaces.NamingContext.checkRef(NamingContext.java:1192)
at org.jnp.interfaces.NamingContext.lookup(NamingContext.java:514)
at org.jnp.interfaces.NamingContext.lookup(NamingContext.java:507)
at javax.naming.InitialContext.lookup(InitialContext.java:411)
at com.leon.Test.main(Test.java:23)
Caused by: java.net.SocketTimeoutException: Receive timed out
at java.net.TwoStacksPlainDatagramSocketImpl.receive0(Native Method)
at java.net.TwoStacksPlainDatagramSocketImpl.receive(TwoStacksPlainDatagramSocketImpl.java:90)
at java.net.DatagramSocket.receive(DatagramSocket.java:786)
at org.jnp.interfaces.NamingContext.discoverServer(NamingContext.java:1093)
... 5 more

谢谢。。。。。。

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