client.java

演示简单Java语言基础

//引入相关包
import javax.naming.Context;
import javax.naming.directory.InitialDirContext;
import javax.naming.NamingException;
import java.util.Hashtable;
public class Client
{
	public static void main(String args[])
	{
		//设定初始参数值
		Hashtable ht=new Hashtable();
		//使用weblogic命名服务
        ht.put (Context.INITIAL_CONTEXT_FACTORY,"weblogic.jndi.WLInitialContextFactory");
        //服务器在本机
        ht.put(Context.PROVIDER_URL,"t3://localhost:789";
        //捕获NamingException
        try
        {
        	//调用InitialContext构造器，指定初始的参数值
        	Context ct=new InitialContext(ht);
        	//查找对象
        	object obj = ct.lookup("HelloJndiName");
 	        HelloHome home=(HelloHome)PortableRemoteObject.narrow(obj,HelloHome.class);
 	        //创建EJB对象
 	        hello hello=home.create();
 	        //调用sayHello方法
 	        String s=hello.sayHello();
 	        System.out.println(s);
 	        //清除EJB对象
 	        hello.remove();
        }
        catch(NamingException e)
        {
        	e.printStrackTrace();
        }
	}
}