一个完整的email客户端代码.txt

一个完整的java,email客户端代码

  * 
  * @param b 
  *            True to make visible, false to make invisible. 
  */ 
 public void setVisible(boolean b) { 
   if (b) 
     setLocation(50, 50); 
   super.setVisible(b); 
 } 

 /** 
  * The main function basically just creates a new object, then shows it. 
  * 
  * @param args 
  *            Command line arguments. Not used in this application. 
  */ 
 static public void main(String args[]) { 
   (new SendMail()).show(); 
 } 

 /** 
  * Created by VisualCafe. Sets the window size. 
  */ 
 public void addNotify() { 
   // Record the size of the window prior to 
   // calling parents addNotify. 
   Dimension size = getSize(); 

   super.addNotify(); 

   if (frameSizeAdjusted) 
     return; 
   frameSizeAdjusted = true; 

   // Adjust size of frame according to the 
   // insets and menu bar 
   Insets insets = getInsets(); 
   javax.swing.JMenuBar menuBar = getRootPane().getJMenuBar(); 
   int menuBarHeight = 0; 
   if (menuBar != null) 
     menuBarHeight = menuBar.getPreferredSize().height; 
   setSize(insets.left + insets.right + size.width, insets.top 
       + insets.bottom + size.height + menuBarHeight); 
 } 

 // Used by addNotify 
 boolean frameSizeAdjusted = false; 

 //{{DECLARE_CONTROLS 

 /** 
  * A label. 
  */ 
 javax.swing.JLabel JLabel1 = new javax.swing.JLabel(); 

 /** 
  * A label. 
  */ 
 javax.swing.JLabel JLabel2 = new javax.swing.JLabel(); 

 /** 
  * A label. 
  */ 
 javax.swing.JLabel JLabel3 = new javax.swing.JLabel(); 

 /** 
  * A label. 
  */ 
 javax.swing.JLabel JLabel4 = new javax.swing.JLabel(); 

 /** 
  * Who this message is from. 
  */ 
 javax.swing.JTextField _from = new javax.swing.JTextField(); 

 /** 
  * Who this message is to. 
  */ 
 javax.swing.JTextField _to = new javax.swing.JTextField(); 

 /** 
  * The subject of this message. 
  */ 
 javax.swing.JTextField _subject = new javax.swing.JTextField(); 

 /** 
  * The SMTP server to use to send this message. 
  */ 
 javax.swing.JTextField _smtp = new javax.swing.JTextField(); 

 /** 
  * A scroll pane. 
  */ 
 javax.swing.JScrollPane _scrollPane2 = new javax.swing.JScrollPane(); 

 /** 
  * The body of this email message. 
  */ 
 javax.swing.JTextArea _body = new javax.swing.JTextArea(); 

 /** 
  * The send button. 
  */ 
 javax.swing.JButton Send = new javax.swing.JButton(); 

 /** 
  * The cancel button. 
  */ 
 javax.swing.JButton Cancel = new javax.swing.JButton(); 

 /** 
  * A scroll pain. 
  */ 
 javax.swing.JScrollPane _scrollPane = new javax.swing.JScrollPane(); 

 /** 
  * The output area. Server messages are displayed here. 
  */ 
 javax.swing.JList _output = new javax.swing.JList(); 

 //}} 

 /** 
  * The list of items added to the output list box. 
  */ 
 javax.swing.DefaultListModel _model = new javax.swing.DefaultListModel(); 

 /** 
  * Input from the socket. 
  */ 
 java.io.BufferedReader _in; 

 /** 
  * Output to the socket. 
  */ 
 java.io.PrintWriter _out; 

 //{{DECLARE_MENUS 
 //}} 

 /** 
  * Internal class created by VisualCafe to route the events to the correct 
  * functions. 
  * 
  * @author VisualCafe 
  * @version 1.0 
  */ 
 class SymAction implements java.awt.event.ActionListener { 

   /** 
    * Route the event to the correction method. 
    * 
    * @param event 
    *            The event. 
    */ 
   public void actionPerformed(java.awt.event.ActionEvent event) { 
     Object object = event.getSource(); 
     if (object == Send) 
       Send_actionPerformed(event); 
     else if (object == Cancel) 
       Cancel_actionPerformed(event); 
   } 
 } 

 /** 
  * Called to actually send a string of text to the socket. This method makes 
  * note of the text sent and the response in the JList output box. Pass a 
  * null value to simply wait for a response. 
  * 
  * @param s 
  *            A string to be sent to the socket. null to just wait for a 
  *            response. 
  * @exception java.io.IOException 
  */ 
 protected void send(String s) throws java.io.IOException { 
   // Send the SMTP command 
   if (s != null) { 
     _model.addElement("C:" + s); 
     _out.println(s); 
     _out.flush(); 
   } 
   // Wait for the response 
   String line = _in.readLine(); 
   if (line != null) { 
     _model.addElement("S:" + line); 
   } 
 } 

 /** 
  * Called when the send button is clicked. Actually sends the mail message. 
  * 
  * @param event 
  *            The event. 
  */ 
 void Send_actionPerformed(java.awt.event.ActionEvent event) { 
   try { 

     java.net.Socket s = new java.net.Socket(_smtp.getText(), 25); 
     _out = new java.io.PrintWriter(s.getOutputStream()); 
     _in = new java.io.BufferedReader(new java.io.InputStreamReader(s 
         .getInputStream())); 

     send(null); 
     send("HELO " + java.net.InetAddress.getLocalHost().getHostName()); 
     send("MAIL FROM: " + _from.getText()); 
     send("RCPT TO: " + _to.getText()); 
     send("DATA"); 
     _out.println("Subject:" + _subject.getText()); 
     _out.println(_body.getText()); 
     send("."); 
     s.close(); 

   } catch (Exception e) { 
     _model.addElement("Error: " + e); 
   } 

 } 

 /** 
  * Called when cancel is clicked. End the application. 
  * 
  * @param event 
  *            The event. 
  */ 
 void Cancel_actionPerformed(java.awt.event.ActionEvent event) { 
   System.exit(0); 

 } 
}