Java JTable中的JFileChooser

我所要做的就是创建一个新组件，将其放入JTable中。它由一个JTextfield组成，单击该字段时会生成一个JFileChooser，用户可以浏览文件系统并选择所需的文件，然后用该文件的路径填充该字段。到目前为止，我已经到了可以在编辑器中填充文本字段的地步，但是当我单击它时，文件选择器不会生成。有人知道我做错了什么吗

public class FileBrowserCellEditor extends AbstractCellEditor implements TableCellEditor, ActionListener {

private static final long serialVersionUID = 1L;
private Component frame;
JButton button;
JTextField textField;
String path;
JFileChooser fc;
protected static final String EDIT = "edit";

public FileBrowserCellEditor(Component frame){
    this.frame = frame;

    textField = new JTextField();
    textField.setActionCommand(EDIT);
    textField.addActionListener(this);

    fc = new JFileChooser();
}

@Override
public Object getCellEditorValue() {

    return path;

}

@Override
public Component getTableCellEditorComponent(JTable arg0, Object arg1,
        boolean arg2, int arg3, int arg4) {

    return textField;
}

@Override
public void actionPerformed(ActionEvent e) {

    //Debug
    System.out.println(e.getActionCommand());

    if (EDIT.equals(e.getActionCommand())) {
        //The user has clicked the cell, so
        //bring up the dialog.
        textField.setText(path);
        fc.showOpenDialog(frame);

        fireEditingStopped(); //Make the renderer reappear.

    } else { //User pressed dialog's "OK" button.
        //currentColor = colorChooser.getColor();

            File file = fc.getSelectedFile();
            this.path = file.getAbsolutePath();

    }

}

}

您可以尝试以下代码：

import javax.swing.*;
import javax.swing.border.*;
import java.awt.*;
import java.awt.event.*;
import javax.swing.table.*;
import java.io.*;

class TableFileChooser extends JFrame  
{
    private JTable table;
    private JScrollPane jsPane;
    private TableModel myModel;
    private JPanel dialogPanel;
    private JTextField tf[];
    private JLabel     lbl[];
    public void prepareAndShowGUI()
    {
        setTitle("FileChooser in JTable");
        myModel = new MyModel();
        table = new JTable(myModel);
        jsPane = new JScrollPane(table);
        table.addMouseListener(new MyMouseAdapter());
        getContentPane().add(jsPane);
        setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        prepareDialogPanel();
        pack();
        setLocationRelativeTo(null);
        setVisible(true);

    }
    private void prepareDialogPanel()
    {
        dialogPanel = new JPanel();
        int col = table.getColumnCount() - 1;
        dialogPanel.setLayout(new GridLayout(col,2));
        tf = new JTextField[col];
        lbl = new JLabel[col];
        for (int i = 0; i < col; i++)
        {
            lbl[i] = new JLabel(table.getColumnName(i));
            tf[i] = new JTextField(10);
            dialogPanel.add(lbl[i]);
            dialogPanel.add(tf[i]);
        }
    }
    private void populateTextField(String[] s)
    {
        for (int i = 0 ; i < s.length ; i++ )
        {
            tf[i].setText(s[i]);
        }
    }

    private class MyMouseAdapter extends MouseAdapter
    {
        @Override
        public void mousePressed(MouseEvent evt)
        {
            int x = evt.getX();
            int y = evt.getY();
            int row = table.rowAtPoint(new Point(x,y));
            int col = table.columnAtPoint(new Point(x,y));
            if (col == 2)
            {
                String value = load();
                if (value!=null && ! "null".equalsIgnoreCase(value.trim()) && ! "".equalsIgnoreCase(value.trim()))
                {
                    myModel.setValueAt(value,row,col);
                }
                else
                {
                    myModel.setValueAt("ChooseFile",row,col);
                }
            }
        }
    }
    //Loads the file
    private String load()
    {
        JFileChooser chooser = new JFileChooser(".");
        chooser.setDialogTitle("Open");
        chooser.setFileSelectionMode(JFileChooser.FILES_ONLY);
        int returnVal = chooser.showOpenDialog(this);
        if(returnVal == JFileChooser.APPROVE_OPTION) 
        {
            File file = chooser.getSelectedFile();
            if (file!= null)
            {
                return file.getAbsolutePath();
            }
            else 
            {
                JOptionPane.showMessageDialog(this,"Please enter a fileName","Error",JOptionPane.ERROR_MESSAGE);
                return null;
            }
        }
        return null;
    }
    private class MyModel extends AbstractTableModel 
    {
        String[] columns = {
                            "Roll No.",
                            "Name",
                            "File Name"
                            };
        String[][] inData = {
                                {"1","Anthony Hopkins","ChooseFile"},
                                {"2","James William","ChooseFile"},
                                {"3","Mc. Donald","ChooseFile"}
                            };
        @Override
        public void setValueAt(Object value, int row, int col)
        {
            inData[row][col] = (String)value;
            fireTableCellUpdated(row,col);
        }
        @Override
        public Object getValueAt(int row, int col)
        {
            return inData[row][col];
        }
        @Override
        public int getColumnCount()
        {
            return columns.length;
        }
        @Override 
        public int getRowCount()
        {
            return inData.length;
        }
        @Override
        public String getColumnName(int col)
        {
            return columns[col];
        }
        @Override
        public boolean isCellEditable(int row ,int col)
        {
            return false;
        }
    }
    public static void main(String st[])
    {
        SwingUtilities.invokeLater( new Runnable()
        {
            @Override
            public void run()
            {
                TableFileChooser td = new TableFileChooser();
                td.prepareAndShowGUI();
            }
        });
    }
}

import javax.swing.*；
导入javax.swing.border.*；
导入java.awt.*；
导入java.awt.event.*；
导入javax.swing.table.*；
导入java.io.*；
类TableFileChooser扩展了JFrame
{
专用JTable表；
私有JScrollPane jsPane；
私有表模型myModel；
私人JPanel对话小组；
私有JTextField[]；
私人JLabel lbl[]；
公共作废预处理显示GUI（）
{
setTitle（“JTable中的文件选择器”）；
myModel=新的myModel（）；
表=新JTable（myModel）；
jsPane=新的JScrollPane（表）；
table.addMouseListener（新的MyMouseAdapter（））；
getContentPane（）.add（jsPane）；
setDefaultCloseOperation（JFrame.EXIT_ON_CLOSE）；
prepareDialogPanel（）；
包装（）；
setLocationRelativeTo（空）；
setVisible（真）；
}
私有无效制备ALOGPANEL（）
{
dialogPanel=newjpanel（）；
int col=table.getColumnCount（）-1；
setLayout（新的GridLayout（col，2））；
tf=新的JTextField[col]；
lbl=新的JLabel[col]；
for（int i=0；i

您可以尝试以下代码：

import javax.swing.*;
import javax.swing.border.*;
import java.awt.*;
import java.awt.event.*;
import javax.swing.table.*;
import java.io.*;

class TableFileChooser extends JFrame  
{
    private JTable table;
    private JScrollPane jsPane;
    private TableModel myModel;
    private JPanel dialogPanel;
    private JTextField tf[];
    private JLabel     lbl[];
    public void prepareAndShowGUI()
    {
        setTitle("FileChooser in JTable");
        myModel = new MyModel();
        table = new JTable(myModel);
        jsPane = new JScrollPane(table);
        table.addMouseListener(new MyMouseAdapter());
        getContentPane().add(jsPane);
        setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        prepareDialogPanel();
        pack();
        setLocationRelativeTo(null);
        setVisible(true);

    }
    private void prepareDialogPanel()
    {
        dialogPanel = new JPanel();
        int col = table.getColumnCount() - 1;
        dialogPanel.setLayout(new GridLayout(col,2));
        tf = new JTextField[col];
        lbl = new JLabel[col];
        for (int i = 0; i < col; i++)
        {
            lbl[i] = new JLabel(table.getColumnName(i));
            tf[i] = new JTextField(10);
            dialogPanel.add(lbl[i]);
            dialogPanel.add(tf[i]);
        }
    }
    private void populateTextField(String[] s)
    {
        for (int i = 0 ; i < s.length ; i++ )
        {
            tf[i].setText(s[i]);
        }
    }

    private class MyMouseAdapter extends MouseAdapter
    {
        @Override
        public void mousePressed(MouseEvent evt)
        {
            int x = evt.getX();
            int y = evt.getY();
            int row = table.rowAtPoint(new Point(x,y));
            int col = table.columnAtPoint(new Point(x,y));
            if (col == 2)
            {
                String value = load();
                if (value!=null && ! "null".equalsIgnoreCase(value.trim()) && ! "".equalsIgnoreCase(value.trim()))
                {
                    myModel.setValueAt(value,row,col);
                }
                else
                {
                    myModel.setValueAt("ChooseFile",row,col);
                }
            }
        }
    }
    //Loads the file
    private String load()
    {
        JFileChooser chooser = new JFileChooser(".");
        chooser.setDialogTitle("Open");
        chooser.setFileSelectionMode(JFileChooser.FILES_ONLY);
        int returnVal = chooser.showOpenDialog(this);
        if(returnVal == JFileChooser.APPROVE_OPTION) 
        {
            File file = chooser.getSelectedFile();
            if (file!= null)
            {
                return file.getAbsolutePath();
            }
            else 
            {
                JOptionPane.showMessageDialog(this,"Please enter a fileName","Error",JOptionPane.ERROR_MESSAGE);
                return null;
            }
        }
        return null;
    }
    private class MyModel extends AbstractTableModel 
    {
        String[] columns = {
                            "Roll No.",
                            "Name",
                            "File Name"
                            };
        String[][] inData = {
                                {"1","Anthony Hopkins","ChooseFile"},
                                {"2","James William","ChooseFile"},
                                {"3","Mc. Donald","ChooseFile"}
                            };
        @Override
        public void setValueAt(Object value, int row, int col)
        {
            inData[row][col] = (String)value;
            fireTableCellUpdated(row,col);
        }
        @Override
        public Object getValueAt(int row, int col)
        {
            return inData[row][col];
        }
        @Override
        public int getColumnCount()
        {
            return columns.length;
        }
        @Override 
        public int getRowCount()
        {
            return inData.length;
        }
        @Override
        public String getColumnName(int col)
        {
            return columns[col];
        }
        @Override
        public boolean isCellEditable(int row ,int col)
        {
            return false;
        }
    }
    public static void main(String st[])
    {
        SwingUtilities.invokeLater( new Runnable()
        {
            @Override
            public void run()
            {
                TableFileChooser td = new TableFileChooser();
                td.prepareAndShowGUI();
            }
        });
    }
}

import javax.swing.*；
导入javax.swing.border.*；
导入java.awt.*；
导入java.awt.event.*；
导入javax.swing.table.*；
导入java.io.*；
类TableFileChooser扩展了JFrame
{
专用JTable表；
私有JScrollPane jsPane；
私有表模型myModel；
私人JPanel对话小组；
私有JTextField[]；
私人JLabel lbl[]；
公共作废预处理显示GUI（）
{
setTitle（“JTable中的文件选择器”）；
myModel=新的myModel（）；
表=新JTable（myModel）；
jsPane=新的JScrollPane（表）；
table.addMouseListener（新的MyMouseAdapter（））；
getContentPane（）.add（jsPane）；
setDefaultCloseOperation（JFrame.EXIT_ON_CLOSE）；
prepareDialogPanel（）；
包装（）；
setLocationRelativeTo（空）；
setVisible（真）；
}
私有无效制备ALOGPANEL（）
{
dialogPanel=新JPane
import java.awt.Color;
import java.awt.Component;
import java.awt.Font;
import java.io.File;
import javax.swing.DefaultCellEditor;
import javax.swing.JButton;
import javax.swing.JFileChooser;
import javax.swing.JTable;
import javax.swing.JTextField;
import javax.swing.SwingUtilities;
import javax.swing.table.TableCellEditor;

public class FileChooserCellEditor extends DefaultCellEditor implements TableCellEditor {

    /** Number of clicks to start editing */
    private static final int CLICK_COUNT_TO_START = 2;
    /** Editor component */
    private JButton button;
    /** File chooser */
    private JFileChooser fileChooser;
    /** Selected file */
    private String file = "";

    /**
     * Constructor.
     */
    public FileChooserCellEditor() {
        super(new JTextField());
        setClickCountToStart(CLICK_COUNT_TO_START);

        // Using a JButton as the editor component
        button = new JButton();
        button.setBackground(Color.white);
        button.setFont(button.getFont().deriveFont(Font.PLAIN));
        button.setBorder(null);

        // Dialog which will do the actual editing
        fileChooser = new JFileChooser();
    }

    @Override
    public Object getCellEditorValue() {
        return file;
    }

    @Override
    public Component getTableCellEditorComponent(JTable table, Object value, boolean isSelected, int row, int column) {
        file = value.toString();
        SwingUtilities.invokeLater(new Runnable() {
            public void run() {
                fileChooser.setSelectedFile(new File(file));
                if (fileChooser.showOpenDialog(button) == JFileChooser.APPROVE_OPTION) {
                    file = fileChooser.getSelectedFile().getAbsolutePath();
                }
                fireEditingStopped();
            }
        });
        button.setText(file);
        return button;
    }
}

yourJTable.getColumnModel().getColumn(yourColumnIndex).setCellEditor(new FileChooserCellEditor());