关于EJB3.0中的一个异常问题??

[liangquan05170139]

我在用Myeclipse学习EJB3.0中抛出了下面这个异常.
javax.naming.NoInitialContextException: Need to specify class name in environment or system property, or as an applet parameter, or in an application resource file: java.naming.factory.initial
at javax.naming.spi.NamingManager.getInitialContext(NamingManager.java:645)
at javax.naming.InitialContext.getDefaultInitCtx(InitialContext.java:288)
at javax.naming.InitialContext.getURLOrDefaultInitCtx(InitialContext.java:325)
at javax.naming.InitialContext.lookup(InitialContext.java:392)
at hjj.liangquan.ejb.TestEjb.main(TestEjb.java:15)


请问是什么问题呀.谢谢!!!
//*** TestEjb.java.

public static void main(String[] args) {

try{
InitialContext ctx = new InitialContext();
MyEjbBeanRemote bean = (MyEjbBeanRemote)ctx.lookup("hjj.liangquan.ejb.MyEjbBeanRemote");
bean.doHello();
}catch(NamingException ex){
ex.printStackTrace();

}
}

[liangquan05170139]

大虾,帮帮忙,谢谢

[daniel_kaka]

InitialContext ctx = new InitialContext(); ??????//

初始化的时候，不同的服务器容器是不一样的，你的具体初始化在哪里？~~~~~~

给你个JBOSS的初始化：
public static Context getInitialContext() throws NamingException{
Properties prop = new Properties();
//下面是JBOSS的JNDI上下文
prop.put(Context.INITIAL_CONTEXT_FACTORY, "org.jnp.interfaces.NamingContextFactory");
prop.put(Context.URL_PKG_PREFIXES, "org.jboss.naming:org.jnp.interfaces");
prop.put(Context.PROVIDER_URL, "jnp://localhost:1099");
//prop.put(Context.PROVIDER_URL, "localhost:1099");//也正确

return new InitialContext(prop);
}

另外，无参数的初始化在web应用中可以，但在app应用中是不行的，必须指明具体初始化参数~

[liangquan05170139]

谢谢呀