日期:2014-05-20  浏览次数:20899 次

学习EJB3遇到错误,进展不下去了,求高人指点~~
错误及代码如下:

EJBTest.jar   部署到jboss中,里面有   接口Hello,HelloBean
jboss里查看jndi为:
+-   HelloBean   (class:   org.jnp.interfaces.NamingContext)
    |       +-   remote   (proxy:   $Proxy65   implements   interface   com.dj.ejb.Hello,interface   org.jboss.ejb3.JBossProxy,interface   javax.ejb.EJBObject)


在Eclipse中新建的另外一个项目中调用EJB
代码如下:
接口   Hello
客户端:public   class   HelloClient   {

/**
  *   @param   args
  */
public   static   void   main(String[]   args)   throws   Exception{

Properties   prop=new   Properties();
FileInputStream   is=new   FileInputStream( "D:\\jndi.properties ");
prop.load(is);

Context   ctx=new   InitialContext(prop);
System.out.println(ctx.getEnvironment());

Hello   hello=(Hello)ctx.lookup( "HelloBean/remote ");//这一行报错
System.out.println(hello.hello());

}

}
按照教程,ctx.lookup( "HelloBean/remote ");是正确的,可是我运行的时候出现错误:
Exception   in   thread   "main "   java.lang.NoSuchFieldError:   TRACE
at   org.jboss.logging.Log4jLoggerPlugin.isTraceEnabled(Log4jLoggerPlugin.java:85)
at   org.jboss.logging.Logger.isTraceEnabled(Logger.java:122)
at   org.jnp.interfaces.NamingContext.lookup(NamingContext.java:622)
at   org.jnp.interfaces.NamingContext.lookup(NamingContext.java:589)
at   javax.naming.InitialContext.lookup(InitialContext.java:392)
at   com.dj.ejb.HelloClient.main(HelloClient.java:23)

百思不得其解啊,望明白人给指点一下,不胜感激!


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