frame1.java~6~

简易多线程下载程序

package mythead;

import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
import com.borland.jbcl.layout.*;

/**
 * <p>Title: </p>
 * <p>Description: </p>
 * <p>Copyright: Copyright (c) 2004</p>
 * <p>Company: </p>
 * @author not attributable
 * @version 1.0
 */

public class Frame1 extends JFrame {
  JPanel contentPane;
  String currentFileName;
  String ipAddress;
  String ipPort;

  BorderLayout borderLayout1 = new BorderLayout();
  JPanel jPanel1 = new JPanel();
  XYLayout xYLayout1 = new XYLayout();
  JPanel jPanel2 = new JPanel();
  XYLayout xYLayout2 = new XYLayout();
  JRadioButton jRadioButton1 = new JRadioButton();
  JLabel jLabel1 = new JLabel();
  JTextField jTextField1 = new JTextField();
  JLabel jLabel2 = new JLabel();
  JTextField jTextFieldIpProt = new JTextField();
  JPanel jPanel3 = new JPanel();
  XYLayout xYLayout3 = new XYLayout();
  JTextField jTextFieldDownAddr = new JTextField();
  JLabel jLabel3 = new JLabel();
  JLabel jLabel4 = new JLabel();
  JTextField jTextFieldThread = new JTextField();
  JButton jButton1 = new JButton();
  JProgressBar jProgressBar1 = new JProgressBar();
  JLabel jLabel5 = new JLabel();
  JTextField jTextFieldSaveAddr = new JTextField();
  JButton jButton2 = new JButton();
  JFileChooser jFileChooser1 = new JFileChooser();

  //Construct the frame
  public Frame1() {
    enableEvents(AWTEvent.WINDOW_EVENT_MASK);
    try {
      jbInit();
    }
    catch(Exception e) {
      e.printStackTrace();
    }
  }
  //Component initialization
  private void jbInit() throws Exception  {
    contentPane = (JPanel) this.getContentPane();
    contentPane.setLayout(borderLayout1);
    this.setSize(new Dimension(400, 300));
    this.setTitle("Frame Title");
    jPanel1.setBackground(UIManager.getColor("InternalFrame.activeTitleGradient"));
    jPanel1.setLayout(xYLayout1);
    jPanel2.setBorder(BorderFactory.createEtchedBorder());
    jPanel2.setLayout(xYLayout2);
    jRadioButton1.setText("是否使用代理");
    jLabel1.setText("地址：");
    jTextField1.setText("");
    jLabel2.setText("端口：");
    jTextFieldIpProt.setText("");
    jPanel3.setLayout(xYLayout3);
    jLabel3.setText("下载地址：");
    jTextFieldDownAddr.setText("");
    jLabel4.setText("线程数：");
    jPanel3.setBorder(BorderFactory.createEtchedBorder());
    jButton1.setText("确定");
    jButton1.addActionListener(new Frame1_jButton1_actionAdapter(this));
    jProgressBar1.setMaximum(100);
    jTextFieldThread.setText("");
    jLabel5.setText("保存地址：");
    jTextFieldSaveAddr.setText("");
    jButton2.setText("浏览.....");
    jButton2.addActionListener(new Frame1_jButton2_actionAdapter(this));
    contentPane.add(jPanel1, BorderLayout.CENTER);
    jPanel1.add(jPanel2,     new XYConstraints(4, 3, 393, 80));
    jPanel2.add(jRadioButton1,   new XYConstraints(14, 6, 107, 23));
    jPanel2.add(jLabel1,   new XYConstraints(20, 46, 48, 21));
    jPanel2.add(jTextField1,  new XYConstraints(74, 45, 143, 24));
    jPanel2.add(jLabel2,  new XYConstraints(229, 45, 55, 23));
    jPanel2.add(jTextFieldIpProt,                                      new XYConstraints(265, 43, 70, 25));
    jPanel1.add(jPanel3,    new XYConstraints(4, 85, 392, 210));
    jPanel3.add(jTextFieldDownAddr,                                                                  new XYConstraints(72, 11, 306, 25));
    jPanel3.add(jLabel3,  new XYConstraints(9, 9, 60, 28));
    jPanel3.add(jButton1,    new XYConstraints(139, 168, 90, 30));
    jPanel3.add(jLabel4,  new XYConstraints(11, 77, 56, 25));
    jPanel3.add(jTextFieldThread, new XYConstraints(73, 78, 77, 26));
    jPanel3.add(jTextFieldSaveAddr,      new XYConstraints(72, 44, 223, 25));
    jPanel3.add(jLabel5,     new XYConstraints(9, 45, 60, 28));
    jPanel3.add(jButton2,  new XYConstraints(309, 45, 68, 24));
    jPanel3.add(jProgressBar1, new XYConstraints(5, 114, 380, 28));
  }
  //Overridden so we can exit when window is closed
  protected void processWindowEvent(WindowEvent e) {
    super.processWindowEvent(e);
    if (e.getID() == WindowEvent.WINDOW_CLOSING) {
      System.exit(0);
    }
  }

  void jButton2_actionPerformed(ActionEvent e) {
    jFileChooser1.showSaveDialog(this);
    currentFileName = jFileChooser1.getSelectedFile().getPath();
    this.jTextFieldSaveAddr.setText(currentFileName) ;

  }

  void jButton1_actionPerformed(ActionEvent e) {
    dai1=jTextField1.getText() ;
  //  this.ipAddress=this.jte
dai2=jTextField2.getText() ;
currentFileName=jTextField3.getText() ;
url1=jTextField4.getText() ;
RandomAccessFile dst = null;
try {
  dst = new RandomAccessFile(currentFileName, "rw");
}
catch (FileNotFoundException ex) {
}
    System.getProperties().put("proxySet", "true");
    System.getProperties().put("proxyHost", dai1);
    System.getProperties().put("proxyPort", dai2);

//http://www.nyist.net/nimages/barner1.gif
try {
    URL url = new URL(url1);
    HttpURLConnection httpConnection = (HttpURLConnection) url.openConnection();
    filelength = httpConnection.getHeaderFieldInt("Content-Length", -1);
    httpConnection.disconnect();
  }
  catch (IOException ex) {}
  int k=filelength/10;
   hello h1[]=new hello[10];
   for(int i=9;i>=0;i--){
    h1[i]=new hello(url1,dst, i*k, i*k+k);
    h1[i].start() ;
      }

  }
}

class Frame1_jButton2_actionAdapter implements java.awt.event.ActionListener {
  Frame1 adaptee;

  Frame1_jButton2_actionAdapter(Frame1 adaptee) {
    this.adaptee = adaptee;
  }
  public void actionPerformed(ActionEvent e) {
    adaptee.jButton2_actionPerformed(e);
  }
}

class Frame1_jButton1_actionAdapter implements java.awt.event.ActionListener {
  Frame1 adaptee;

  Frame1_jButton1_actionAdapter(Frame1 adaptee) {
    this.adaptee = adaptee;
  }
  public void actionPerformed(ActionEvent e) {
    adaptee.jButton1_actionPerformed(e);
  }
}