FileChooserDemo1

import java.awt.BorderLayout;
import java.awt.Component;
import java.awt.Container;
import java.awt.Dimension;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.event.WindowAdapter;
import java.awt.event.WindowEvent;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.IOException;

import javax.swing.BoxLayout;
import javax.swing.JButton;
import javax.swing.JFileChooser;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JPanel;
import javax.swing.JScrollPane;
import javax.swing.JTable;
import javax.swing.JTextField;
import javax.swing.event.TableModelEvent;
import javax.swing.event.TableModelListener;


class FileChooserDemo1 implements ActionListener,TableModelListener
{
JFrame f = null;
    JLabel label = null;
    JTextField textField = null;
    JFileChooser fileChooser = null;
    JTable table = null;
    MyTable mt = null;
    JLabel label1 = null; //显示修改字段位置
   
    public FileChooserDemo1()
    {
        f = new JFrame("FileChooser Example");
        Container contentPane = f.getContentPane();
       
        JPanel panel = new JPanel();
        JButton b1 = new JButton("上传文件");
        b1.addActionListener(this);
        JButton b2 = new JButton("存储文件");
        b2.addActionListener(this);
        panel.add(b1);
//        panel.add(b2);
       
        label = new JLabel(" ",JLabel.CENTER);
       
        fileChooser = new JFileChooser("D:\\");//建立一个FileChooser对象,并指定D:的目录为默认文件对话框路径.
       
//        JFrame f = new JFrame();
       mt=new MyTable();
       mt.addTableModelListener(this);
   
       table=new JTable(mt);
       table.setPreferredScrollableViewportSize(new Dimension(550, 100));
       JScrollPane s = new JScrollPane(table);
       
        label1 = new JLabel("修改字段位置：");
       
//        contentPane.add(label,BorderLayout.EAST);
        contentPane.add(addInput(),BorderLayout.NORTH);
//        contentPane.add(scrollPane,BorderLayout.WEST);
//        contentPane.add(panel,BorderLayout.EAST);
        contentPane.add(s,BorderLayout.CENTER);
        contentPane.add(addOutput(),BorderLayout.SOUTH);
       
        f.pack();
        f.setTitle("ISoap");
        f.setVisible(true);
       
        f.addWindowListener(new WindowAdapter() {
            public void windowClosing(WindowEvent e) {
                System.exit(0);
            }
        });
    }
   
    private Container addInput() {
    JPanel xPanel = new JPanel();
        xPanel.setLayout(new BoxLayout(xPanel, BoxLayout.X_AXIS));
    textField = new JTextField();
        JScrollPane scrollPane = new JScrollPane(textField);
        scrollPane.setPreferredSize(new Dimension(350,30));
        xPanel.add(textField);
    JButton button = new JButton("上传路径");
    button.addActionListener(this);
        button.setAlignmentX(Component.CENTER_ALIGNMENT);
        xPanel.add(button);
        return xPanel;
    }
   
    private Container addOutput() {
    JPanel xPanel = new JPanel();
        xPanel.setLayout(new BoxLayout(xPanel, BoxLayout.X_AXIS));
    textField = new JTextField();
        JScrollPane scrollPane = new JScrollPane(textField);
        scrollPane.setPreferredSize(new Dimension(350,30));
        xPanel.add(textField);
    JButton button = new JButton("导出路径");
    button.addActionListener(this);
        button.setAlignmentX(Component.CENTER_ALIGNMENT);
        xPanel.add(button);
        return xPanel;
    }
   
    public void tableChanged(TableModelEvent e)
    {
    int row = e.getFirstRow();
        int column = e.getColumn();
        label.setText("修改字段位置："+(row+1)+" 行 "+(column+1)+" 列");
        System.out.println("修改字段位置："+(row+1)+" 行 "+(column+1)+" 列");
        boolean cheat =((Boolean)(mt.getValueAt(row,column))).booleanValue();
        System.out.println(cheat);
        mt.reset((String) mt.getValueAt(row,0), cheat);
    table.repaint();
    }
   
    public static void main(String[] args) {
        new FileChooserDemo1();
    }
   
    public void actionPerformed(ActionEvent e)
    {
        File file = null;
        int result;
        /*当用户按下"打开文件"按钮时,JFileChooser的showOpenDialog()方法会输出文件对话框,并利用
         *setApproveButtonText()方法取代按钮上"Open"文字;以setDialogTitle()方法设置打开文件对话框Title名称.
         *当使用选择完后,会将选择结果存到result变量中.
         */
        if (e.getActionCommand().equals("上传路径"))
        {
            fileChooser.setApproveButtonText("确定");
            fileChooser.setDialogTitle("打开文件");
            result = fileChooser.showOpenDialog(f);
           
            textField.setText("");

            /*当用户按下打开文件对话框的"确定"钮后,我们就可以利用getSelectedFile()方法取得文件对象.若是用户按下打
             *开文件对话框的"Cancel"钮,则将在label上显示"你没有选择任何文件"字样.
             */
            if (result == JFileChooser.APPROVE_OPTION)
            {
                file = fileChooser.getSelectedFile();
                label.setText("您选择打开的文件名称为："+file.getName());
            }
            else if(result == JFileChooser.CANCEL_OPTION)
            {
                label.setText("您没有选择任何文件");
            }
           
            FileInputStream fileInStream = null;
           
            if(file != null)
            {
                try{
                    //利用FileInputStream将文件内容放入此数据流中以便读取.
                    fileInStream = new FileInputStream(file);
                }catch(FileNotFoundException fe){
                    label.setText("File Not Found");
                    return;
                }
               
                int readbyte;
       
                try{
                    //以read()方法读取FileInputStream对象内容,当返回值为-1时代表读完此数据流.将所读到的字符显示
                    //在textarea中.
                    while( (readbyte = fileInStream.read()) != -1)
                    {
                    //textField.append(String.valueOf((char)readbyte));
                    }
                }catch(IOException ioe){
                    label.setText("读取文件错误");
                }
                finally{//回收FileInputStream对象,避免资源的浪费.
                    try{
                        if(fileInStream != null)
                            fileInStream.close();
                    }catch(IOException ioe2){}
                }
            }
        }
        //实作写入文件的功能.
        if (e.getActionCommand().equals("存储文件"))
        {
            result = fileChooser.showSaveDialog(f);
            file = null;
            String fileName;
            //当用户没有选择文件,而是自己键入文件名称时,系统会自动以此文件名建立新文件.
            if (result == JFileChooser.APPROVE_OPTION)
            {
                file = fileChooser.getSelectedFile();
                label.setText("您选择存储的文件名称为："+file.getName());
            }
            else if(result == JFileChooser.CANCEL_OPTION)
            {
                label.setText("您没有选择任何文件");
            }
            //写入文件我们使用FileOutputStream,在这个范例中,我们写入文件的方式是将之前内容清除并重新写入.若你想把
            //新增的内容加在原有的文件内容后面,你可以使用FileOutputStream(String name,Boolean append)这个构造函数.
            FileOutputStream fileOutStream = null;
           
            if(file != null)
            {
                try{
                    fileOutStream = new FileOutputStream(file);
                }catch(FileNotFoundException fe){
                    label.setText("File Not Found");
                    return;
                }

                String content = textField.getText();
               
                try{
                    fileOutStream.write(content.getBytes());
                }catch(IOException ioe){
                    label.setText("写入文件错误");
                }
                finally{
                    try{
                        if(fileOutStream != null)
                            fileOutStream.close();
                    }catch(IOException ioe2){}
                }
            }
        }
    }
}