frame1.java~62~

一个遍历文件系统目录结构的程序并能够将其结构用字符打印出来

package stream;

import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
import com.borland.jbcl.layout.*;
import java.io.*;
/**
 * Title:
 * Description:
 * Copyright:    Copyright (c) 2002
 * Company:
 * @author
 * @version 1.0
 */

public class Frame1 extends JFrame {
  RandomAccessFile in_and_out=null;
  String str;
  int c;boolean start=true;
  JPanel contentPane;
  JMenuBar jMenuBar1 = new JMenuBar();
  JMenu jMenuFile = new JMenu();
  JMenuItem jMenuFileExit = new JMenuItem();
  JMenu jMenuHelp = new JMenu();
  JMenuItem jMenuHelpAbout = new JMenuItem();
  BorderLayout borderLayout1 = new BorderLayout();
  JPanel jPanel1 = new JPanel();
  JPanel jPanel2 = new JPanel();
  JPanel jPanel3 = new JPanel();
  JPanel jPanel4 = new JPanel();
  XYLayout xYLayout2 = new XYLayout();
  JLabel jLabel1 = new JLabel();
  JTextField jTextField1 = new JTextField();
  JLabel jLabel2 = new JLabel();
  JTextField jTextField2 = new JTextField();
  JScrollPane jScrollPane1 = new JScrollPane();
  JTextArea jTextArea1 = new JTextArea();
  JButton jButton1 = new JButton();
  JButton jButton3 = new JButton();
  BorderLayout borderLayout2 = new BorderLayout();
  BorderLayout borderLayout3 = new BorderLayout();

  /**Construct the frame*/
  public Frame1() {
   //jTextField2.setText("c:\\fieltree.txt");
   //jTextField1.setText("c:\\D");

    enableEvents(AWTEvent.WINDOW_EVENT_MASK);
    try {
      jbInit();
    }
    catch(Exception e) {
      e.printStackTrace();
    }
  }









  /**Component initialization*/
  private void jbInit() throws Exception  {
    //setIconImage(Toolkit.getDefaultToolkit().createImage(Frame1.class.getResource("[Your Icon]")));

    contentPane = (JPanel) this.getContentPane();
    contentPane.setLayout(borderLayout1);
    this.setSize(new Dimension(400, 300));
    this.setTitle("Frame Title");
    jMenuFile.setText("File");
    jMenuFileExit.setText("Exit");
    jMenuFileExit.addActionListener(new ActionListener()  {
      public void actionPerformed(ActionEvent e) {
        jMenuFileExit_actionPerformed(e);
      }
    });
    jMenuHelp.setText("Help");
    jMenuHelpAbout.setText("About");
    jMenuHelpAbout.addActionListener(new ActionListener()  {
      public void actionPerformed(ActionEvent e) {
        jMenuHelpAbout_actionPerformed(e);
      }
    });
    jPanel1.setLayout(borderLayout2);
    jPanel2.setLayout(xYLayout2);
    jLabel1.setText("请输入要显示的路径");
    jPanel2.setBackground(SystemColor.inactiveCaptionBorder);
    jPanel2.setBorder(BorderFactory.createLineBorder(Color.black));

    jTextField1.addActionListener(new java.awt.event.ActionListener() {
      public void actionPerformed(ActionEvent e) {
        jTextField1_actionPerformed(e);
      }
    });
    jLabel2.setText("请输入目标文件名");
    //jTextField2.setText("c:\\fieltree.txt");
    jPanel3.setLayout(borderLayout3);
    jButton1.setText("退出");
    jButton1.addActionListener(new java.awt.event.ActionListener() {
      public void actionPerformed(ActionEvent e) {
        jButton1_actionPerformed(e);
      }
    });
    jButton3.setText("开始");
    jButton3.addActionListener(new java.awt.event.ActionListener() {
      public void actionPerformed(ActionEvent e) {
        jButton3_actionPerformed(e);
      }
    });
    jPanel4.setBorder(BorderFactory.createLineBorder(Color.black));
    jTextField2.addActionListener(new java.awt.event.ActionListener() {
      public void actionPerformed(ActionEvent e) {
        jTextField2_actionPerformed(e);
      }
    });
    jMenuFile.add(jMenuFileExit);
    jMenuHelp.add(jMenuHelpAbout);
    jMenuBar1.add(jMenuFile);
    jMenuBar1.add(jMenuHelp);
    this.setJMenuBar(jMenuBar1);
    contentPane.add(jPanel1, BorderLayout.CENTER);
    jPanel1.add(jPanel2, BorderLayout.NORTH);
    jPanel2.add(jTextField1, new XYConstraints(154, 16, 198, -1));
    jPanel2.add(jTextField2,   new XYConstraints(155, 42, 197, -1));
    jPanel2.add(jLabel1,   new XYConstraints(22, 15, -1, 22));
    jPanel2.add(jLabel2,  new XYConstraints(22, 43, 111, 21));
    jPanel1.add(jPanel3, BorderLayout.CENTER);
    jPanel3.add(jScrollPane1, BorderLayout.CENTER);
    jScrollPane1.getViewport().add(jTextArea1, null);
    jPanel1.add(jPanel4, BorderLayout.SOUTH);
    jPanel4.add(jButton3, null);
    jPanel4.add(jButton1, null);
  }

  /**File | Exit action performed*/
  public void jMenuFileExit_actionPerformed(ActionEvent e) {
    System.exit(0);
  }
  /**Help | About action performed*/
  public void jMenuHelpAbout_actionPerformed(ActionEvent e) {
    Frame1_AboutBox dlg = new Frame1_AboutBox(this);
    Dimension dlgSize = dlg.getPreferredSize();
    Dimension frmSize = getSize();
    Point loc = getLocation();
    dlg.setLocation((frmSize.width - dlgSize.width) / 2 + loc.x, (frmSize.height - dlgSize.height) / 2 + loc.y);
    dlg.setModal(true);
    dlg.show();
  }
  /**Overridden so we can exit when window is closed*/
  protected void processWindowEvent(WindowEvent e) {
    super.processWindowEvent(e);
    if (e.getID() == WindowEvent.WINDOW_CLOSING) {
      jMenuFileExit_actionPerformed(null);
    }
  }



   //编写定位方法
  public void locate(int b)
  {String s; char a[]=new char[100];
      for(int i=0;i<b;i++)
      {a[i]=' ';
      }
    s=new String(a,0,b-1);
     try
     {in_and_out.writeBytes(s);
     }
     catch(IOException e)
     {System.out.println("????????");
     }
  }
  //编写一级子目录和文件遍历方法
   public void root(File classpath,int d )
   {int i=0;
    locate(d);
    try
    {in_and_out.writeBytes(classpath.getAbsolutePath()+"\n");
      // in_and_out.writeBytes(classpath.getName());
       System.out.println("show the name:"+classpath.getName());
     }
    catch(IOException e)
      {System.out.println("????????");
      }
    d=d+classpath.toString().length()-2;
    c=d;
    File file[];
    if(classpath.isDirectory())
    {file=classpath.listFiles();
       for(i=0;i<file.length;i++)
       { if(i==file.length-1)
         {  locate(c);
            if(file[i].isDirectory())
            {
             try
             {in_and_out.writeBytes("\\--");
             }
            catch(IOException e)
            {System.out.println("????????");
            }
             start=false;
            }
            else
            {
            try
            {in_and_out.writeBytes("\\--"+file[i].getName()+"\n");
             }
              catch(IOException e)
              {System.out.println("????????");
              }
              start=false;
               continue;

            }
         }
         else
         { locate(c);
            if(file[i].isDirectory())
            {
            try
            {in_and_out.writeBytes("+--");
            }
            catch(IOException e)
            {System.out.println("????????");
            }
            }
            else
            { try
              {in_and_out.writeBytes("+--"+file[i].getName()+"\n");
               }
               catch(IOException e)
               {System.out.println("????????");
               }
               continue;
            }
     tree(file[i],c+5);    }
       }
      //
    for(int q=0;q<file.length;q++)
     {System.out.println(file[q].getName());
     }
    }
   }
  //编写二级以上目录和文件的递归遍历方法
  public void tree(File a,int b)
  { File array[];
     if(a.isDirectory())
        {array=a.listFiles();
          try {in_and_out.writeBytes(a.getName()+"\n");}
      catch(IOException e)
      {System.out.println("????????");}




          int d=b+5;
          for(int k=0;k<array.length;k++)
             { if(k==array.length-1)
                {if(start)
                  {locate(c);
                   try
                   {in_and_out.writeBytes("|");
                   }
                   catch(IOException e)
                   {System.out.println("????????");
                   }
                   locate(b-c);
                   try
                   {in_and_out.writeBytes("\\--");
                   }
                  catch(IOException e)
                  {System.out.println("????????");
                  }
                  }
                else
                {locate(b);
                try
                {in_and_out.writeBytes("\\--");
                }
                catch(IOException e)
                {System.out.println("????????");
                }
                }
                }
             else
             {if(start)
               {locate(c);
               try
               {in_and_out.writeBytes("|");
               }
               catch(IOException e)
               {System.out.println("????????");
               }
               locate(b-c);
               try
               {in_and_out.writeBytes("+--");
               }
               catch(IOException e)
               {System.out.println("????????");
               }
               }

             else
               {locate(b);
              try
              {in_and_out.writeBytes("+--");
               }
               catch(IOException e)
               {System.out.println("????????");}
               }
             }
    tree(array[k],d);
        }

    }
 else try {in_and_out.writeBytes(a.getName()+"\n");}
      catch(IOException e)
      {System.out.println("????????");}
  }
  void jButton3_actionPerformed(ActionEvent e) {
  System.out.println("get the output file"+jTextField2.getText());
   System.out.println("get the input path"+jTextField1.getText());
     File path=new File(jTextField1.getText());
     try {
System.out.println("get the output file"+str);
System.out.println("get the input path"+jTextField1.getText());
in_and_out=new RandomAccessFile(jTextField2.getText(),"rw");
      }
    catch(FileNotFoundException f)
    {System.out.println("PPPP?????");
    }

  root(path ,5);

try{ in_and_out.close();}
      catch(IOException d)
     {  System.out.println("Can't close");

     }
  }

  void jTextField1_actionPerformed(ActionEvent e)
  {
  }

  void jTextField2_actionPerformed(ActionEvent e)
  {
  }

  void jButton1_actionPerformed(ActionEvent e) {
    System.exit(0);
  }
}