client.java

USB设计的一些源码！适合与USB开发的同学！还是蛮不错的！我用过一些！

import calculatorejb.*;
import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
import javax.swing.event.*;
import javax.naming.Context;
import javax.naming.InitialContext;
import javax.rmi.PortableRemoteObject;
import java.util.*;
public class Client extends JFrame{
        public static int w=500;
        public static int h=95;
        public static String str="Earnest Bank Welcomes You";
        Container c;

        JLabel l,result;
        JTextField t;
        JButton b;

        public static String value;
        public static double dbl;
        public static double amt;

        public Client(String str)
        {
                super(str);

                //The UI
                c=getContentPane();
                c.setLayout(new GridLayout(2,2,2,2));

                l=new JLabel("Enter the amount in Dollars($)");
                c.add(l);

                t=new JTextField(10);
                c.add(t);

                b=new JButton("Calculate");
                c.add(b);

                result=new JLabel();
                c.add(result);
                value=t.getText();
                b.addActionListener(new addEvent());
                setSize(w,h);
                show();
        }
        public class addEvent implements ActionListener
        {
                public void actionPerformed(ActionEvent e)
                {
                        value=t.getText();
                        dbl=Double.parseDouble(value);
                        try
                        {
                             Context ic = null;
                             Hashtable ht =new Hashtable();
                             ht.put(Context.INITIAL_CONTEXT_FACTORY,"weblogic.jndi.WLInitialContextFactory");
                             ht.put(Context.PROVIDER_URL,"t3://localhost:7001");
                             ic=new InitialContext(ht);
                             Object obj = ic.lookup("CalculatorEJB");










                                CalculatorEJBHome home = (CalculatorEJBHome)PortableRemoteObject.narrow(obj,CalculatorEJBHome.class);
                                CalculatorEJB calc = home.create();
                                amt = calc.dollarToRs(dbl);
                                result.setText("Result(Rs.): "+String.valueOf(amt));
                        }
                        catch (Exception ex)
                        {
                                System.err.println("Caught an unexpected exception!");
                                ex.printStackTrace();
                        }

                }
        }
        public static void main(String args[])
        {
                Client m=new Client("Client");
        }

}