文件查找

package iotest;

import java.awt.*;
import java.awt.Color;
import java.awt.Container;
import java.awt.Graphics;
import java.awt.event.*;
import java.io.*;
import javax.swing.*;
import javax.swing.event.*;

public class SearchFile
{
    public static void main(String[] args)
    {
        SearchFileFrame frame = new SearchFileFrame();
        frame.setDefaultCloseOperation(javax.swing.JFrame.EXIT_ON_CLOSE);
        frame.show();
    }
}

class SearchFileFrame extends JFrame
{
    public SearchFileFrame()
    {
        this.setTitle("SearchFileFrame");
        setSize(600,450);
       
        Container con = this.getContentPane();
        SearchFilePanel p = new SearchFilePanel();
        con.add(p);
    }
}

class SearchFilePanel extends JPanel
{
    private JLabel fileName = new JLabel("查找文件: ");
    private JLabel directorName = new JLabel("查找范围: ");
    private JLabel process = new JLabel("查找进度... ");
   
    private JButton search = new JButton("开始查找");
   
    private JTextField openfield = new JTextField();
    private JTextField savefield = new JTextField();
   
    private JTextArea area = new JTextArea();
   
    private int number =0;
   
    public SearchFilePanel()
    {
        setLayout(new BorderLayout());
        area.setLineWrap(true);
        JScrollPane s = new JScrollPane(area);
       
        search.addActionListener(new ActionListener()
        {
            public void actionPerformed(ActionEvent e)
            {
                try
                {
                    area.setText("");
                    Thread st = new Thread(new Runnable()
                    {
                        public void run()
                        {
                            searchFile(new File(savefield.getText()),openfield.getText());
                        }
                    });
                    st.start();
                }
                catch(Exception ee)
                {}
            }
        });
       
        JPanel openpanel = new JPanel();
        openpanel.setLayout(new BorderLayout());
        openpanel.add(fileName,BorderLayout.WEST);
        openpanel.add(openfield,BorderLayout.CENTER);
       
        JPanel savepanel = new JPanel();
        savepanel.setLayout(new BorderLayout());
        savepanel.add(directorName,BorderLayout.WEST);
        savepanel.add(savefield,BorderLayout.CENTER);
       
        JPanel control = new JPanel();
        control.setLayout(new BorderLayout());
        control.add(openpanel,BorderLayout.NORTH);
        control.add(savepanel,BorderLayout.SOUTH);
       
        JPanel searchPanel = new JPanel();
        searchPanel.setLayout(new FlowLayout(FlowLayout.LEFT));
        searchPanel.add(search);
        searchPanel.add(process);
       
        JPanel NorPanel = new JPanel();
        NorPanel.setLayout(new BorderLayout());
        NorPanel.add(control,BorderLayout.NORTH);
        NorPanel.add(searchPanel,BorderLayout.SOUTH);
       
        add(NorPanel,BorderLayout.NORTH);
        add(s,BorderLayout.CENTER);
       
    }
   
    public void searchFile(File file,String fileName)  //核心递归算法
    {
        if(file.exists())
        {
            File[] f = file.listFiles();
            if(f!=null)
            {
                for(int i =0 ;i<f.length;i++)
                {
                    process.setText(f[i].getPath());
                    if(f[i].isDirectory())
                    {
                        searchFile(f[i],fileName);
                    }
                    else
                    {
                        String temp = f[i].getName();
                        if(temp.indexOf(fileName)!=-1)
                        {
                            area.append(f[i].getPath()+"\r\n");
                        }
                    }
                }
            }
        }
    }
}