applet1.java

java灵感设计

package untitled2;

import java.awt.*;
import java.awt.event.*;
import java.applet.*;
import java.net.*;
import java.io.*;
import java.lang.*;
import java.util.*;
import javax.swing.*;
/**
 * <p>Title: </p>
 * <p>Description: </p>
 * <p>Copyright: Copyright (c) 2002</p>
 * <p>Company: </p>
 * @author unascribed
 * @version 1.0
 */

public class Applet1 extends Applet {
  boolean isStandalone = false;
  private int SMTP_PORT=25;
  String send="";
  String get="";
  Label label1 = new Label();
  Label label2 = new Label();
  Label label3 = new Label();
  TextField textField1 = new TextField();
  TextField textField2 = new TextField();
  TextArea textArea1 = new TextArea();
  Button button1 = new Button();
  JOptionPane jOptionPane1 = new JOptionPane();
  //Get a parameter value
  public String getParameter(String key, String def) {
    return isStandalone ? System.getProperty(key, def) :
      (getParameter(key) != null ? getParameter(key) : def);
  }

  //Construct the applet
  public Applet1() {
  }
  //Initialize the applet
  public void init() {
    try {
    send=getParameter("send");
    get=getParameter("get");
      jbInit();
    }
    catch(Exception e) {
      e.printStackTrace();
    }
  }
  //Component initialization
  private void jbInit() throws Exception {
    label1.setText("收件人地址");
    label1.setBounds(new Rectangle(26, 25, 65, 25));
    this.setLayout(null);
    label2.setText("发件人地址");
    label2.setBounds(new Rectangle(25, 57, 73, 17));
    label3.setText("信件正文:");
    label3.setBounds(new Rectangle(25, 87, 80, 24));
    textField1.setText("textField1");
    textField1.setBounds(new Rectangle(102, 25, 129, 27));
    textField2.setText("textField2");
    textField2.setBounds(new Rectangle(102, 57, 127, 26));
    textArea1.setText("textArea1");
    textArea1.setBounds(new Rectangle(31, 116, 247, 96));
    button1.setLabel("发送");
    button1.setBounds(new Rectangle(117, 237, 89, 27));
    button1.addActionListener(new java.awt.event.ActionListener() {
      public void actionPerformed(ActionEvent e) {
        button1_actionPerformed(e);
      }
    });
    jOptionPane1.setBounds(new Rectangle(346, 23, 165, 74));
    this.add(label1, null);
    this.add(label2, null);
    this.add(label3, null);
    this.add(textArea1, null);
    this.add(jOptionPane1, null);
    this.add(textField1, null);
    this.add(textField2, null);
    this.add(button1, null);
    jOptionPane1.setVisible(false);

    textField1.setText(get);
    textField2.setText(send);
  }
  //Get Applet information
  public String getAppletInfo() {
    return "Applet Information";
  }
  //Get parameter info
  public String[][] getParameterInfo() {
    return null;
  }
  //Main method
  public static void main(String[] args) {
    Applet1 applet = new Applet1();
    applet.isStandalone = true;
    Frame frame;
    frame = new Frame() {
      protected void processWindowEvent(WindowEvent e) {
        super.processWindowEvent(e);
        if (e.getID() == WindowEvent.WINDOW_CLOSING) {
          System.exit(0);
        }
      }
      public synchronized void setTitle(String title) {
        super.setTitle(title);
        enableEvents(AWTEvent.WINDOW_EVENT_MASK);
      }
    };
    frame.setTitle("Applet Frame");
    frame.add(applet, BorderLayout.CENTER);
    applet.init();
    applet.start();
    frame.setSize(400,320);
    Dimension d = Toolkit.getDefaultToolkit().getScreenSize();
    frame.setLocation((d.width - frame.getSize().width) / 2, (d.height - frame.getSize().height) / 2);
    frame.setVisible(true);
  }
  void sendMail()
  {
  String sender=textField2.getText();
  String geter=textField1.getText();
  String memo=textArea1.getText();
  StringTokenizer st =new StringTokenizer(sender,"@");
  int count=st.countTokens();
  if(count!=2)
  {
  jOptionPane1.showMessageDialog(null,"您的收件人地址有误,请重新填写!");
  textField2.selectAll();;
  return;
  }
  String senderName=st.nextToken();
  String senderHost=st.nextToken();
  st=new StringTokenizer(geter,"@");
  count=st.countTokens();
  if(count!=2)
  {
   jOptionPane1.showMessageDialog(null,"您的发件人地址有误,请重新填写!");
  textField1.selectAll();
  return;
  }
  String geterName=st.nextToken();
  String geterHost=st.nextToken();
  try{
  Socket s=new Socket(geterHost,SMTP_PORT);
  PrintStream out=new PrintStream(s.getOutputStream());
  out.println("MAIL FROM:"+senderName);
  out.println("RCPT TO:"+geterName);
  out.println("DATA");
  out.println(memo);
  out.println(".");
  out.println("QUIT");
   jOptionPane1.showMessageDialog(null,"您的邮件发送成功!");
  }
  catch(Exception e)
  {

  jOptionPane1.showMessageDialog(null,"程序异常错误"+e.toString());
  return;
  }
  }

  void button1_actionPerformed(ActionEvent e) {
  sendMail();
  textArea1.setText("");

  }

}