邮件客户端程序

用mailapi实现的java邮件客户端，能实现简单的邮件收发功能！

import java.awt.*;
import sun.net.smtp.*;
import java.awt.event.*;
import javax.swing.*;
import java.io.*;
import javax.swing.event.*;
import javax.swing.border.*;

public class MailClient extends Jframe{

protected SmtpClient sc;
protected JTextField senderadressessubjectserver;
protected JTextArea message;
protected JButton sendButton;
protected JLabel l1l2l3l4;
protected PrintStream ps;
protected JDialog dialogBox;
protected String toName=““;

public MailClient（）{

/*******************************Graphical interface**************************/

super（“SMTP Mail Client“）;
getContentPane（）.setLayout（new BorderLayout（））;

JPanel header = new JPanel（）;

JPanel p1=new JPanel（new FlowLayout（FlowLayout.LEFT））;
l1=new JLabel（“ To:          “）;
l1.setForeground（Color.black）;
p1.add（l1）;
adresses=new JTextField（40）;

adresses.addFocusListener（new FocusAdapter（）{
public void focusGained（FocusEvent e）{
l1.setForeground（new Color（98156245））;
}
}）;

adresses.addFocusListener（new FocusAdapter（）{
public void focusLost（FocusEvent e）{
l1.setForeground（Color.black）;
}
}）;

p1.add（adresses）;

JPanel p2=new JPanel（new FlowLayout（FlowLayout.LEFT））;
l2=new JLabel（“ From:      “）;
l2.setForeground（Color.black）;
p2.add（l2）;
sender=new JTextField（40）;
sender.addFocusListener（new FocusAdapter（）{
public void focusGained（FocusEvent e）{
l2.setForeground（new Color（98156245））;
}
}）;

sender.addFocusListener（new FocusAdapter（）{
public void focusLost（FocusEvent e）{
l2.setForeground（Color.black）;
}
}）;

p2.add（sender）;

JPanel p3=new JPanel（new FlowLayout（FlowLayout.LEFT））;
l3=new JLabel（“ Subject:   “）;
l3.setForeground（Color.black）;
p3.add（l3）;
subject=new JTextField（40）;
subject.addFocusListener（new FocusAdapter（）{
public void focusGained（FocusEvent e）{
l3.setForeground（new Color（98156245））;
}
}）;

subject.addFocusListener（new FocusAdapter（）{
public void focusLost（FocusEvent e）{
l3.setForeground（Color.black）;
}
}）;

p3.add（subject）;

JPanel p=new JPanel（new FlowLayout（FlowLayout.LEFT））;
l4=new JLabel（“ Server:   “）;
l4.setForeground（Color.black）;
p.add（l4）;
server=new JTextField（40）;
server.addFocusListener（new FocusAdapter（）{
public void focusGained（FocusEvent e）{
l4.setForeground（new Color（98156245））;
}
}）;

server.addFocusListener（new FocusAdapter（）{
public void focusLost（FocusEvent e）{
l4.setForeground（Color.black）;
}
}）;

p.add（server）;


JLabel label=new JLabel（“JAVA MAIL CLIENT APPLICATION“）;
label.setFont（new Font（“TimesRoman“Font.BOLD20））;
label.setForeground（Color.blue）;
label.setSize（25030）;
label.setHorizontalAlignment（JLabel.CENTER）;

header.setLayout（new GridLayout（51））;
header.add（label）;
header.add（p1）;
header.add（p2）;
header.add（p3）;
header.add（p）;

message=new JTextArea（7050）;
message.setFont（new Font（“SansSerif“Font.BOLD14））;
JScrollPane pScroll=new JScrollPane（message）;
pScroll.setBorder（new titledBorder（new
EtchedBorder（）“Mail Message“））;

JPanel p4=new JPanel（new FlowLayout（））;
sendButton=new JButton（“SEND MESSAGE“）;
sendButton.setM

 属性            大小     日期    时间   名称
----------- ---------  ---------- -----  ----

     文件        226  2012-05-23 19:14  mailclient\.classpath

     文件        386  2012-05-23 19:14  mailclient\.project

     文件        740  2012-05-24 15:40  mailclient\MailClient$1.class

     文件        623  2012-05-24 15:40  mailclient\MailClient$10.class

     文件        757  2012-05-24 15:40  mailclient\MailClient$11.class

     文件        744  2012-05-24 15:40  mailclient\MailClient$2.class

     文件        740  2012-05-24 15:40  mailclient\MailClient$3.class

     文件        744  2012-05-24 15:40  mailclient\MailClient$4.class

     文件        740  2012-05-24 15:40  mailclient\MailClient$5.class

     文件        744  2012-05-24 15:40  mailclient\MailClient$6.class

     文件        740  2012-05-24 15:40  mailclient\MailClient$7.class

     文件        744  2012-05-24 15:40  mailclient\MailClient$8.class

     文件       1564  2012-05-24 15:40  mailclient\MailClient$9.class

     文件       5624  2012-05-24 15:40  mailclient\MailClient.class

     文件       5416  2002-01-12 23:22  mailclient\MailClient.java

     目录          0  2012-05-24 15:40  mailclient

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