我的图像上传功能完全可以使用。但是我不能逐行上传图像。目前，当我上传图片时，它将添加到整个第5列中。如何将按钮放入数组并逐行上传图像？
**注意：按钮用作文件上传器。
这是图片
这是代码：
NewFrame.java
package test4;
import java.awt.Color;
import java.awt.Component;
import java.awt.Image;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import javax.swing.DefaultCellEditor;
import javax.swing.DefaultListCellRenderer;
import javax.swing.ImageIcon;
import javax.swing.JButton;
import javax.swing.JCheckBox;
import javax.swing.JComboBox;
import javax.swing.JFileChooser;
import javax.swing.JLabel;
import javax.swing.JList;
import javax.swing.JOptionPane;
import javax.swing.JTable;
import javax.swing.ListCellRenderer;
import javax.swing.UIManager;
import javax.swing.filechooser.FileSystemView;
import javax.swing.table.DefaultTableCellRenderer;
import javax.swing.table.TableCellEditor;
import javax.swing.table.TableCellRenderer;
import javax.swing.table.TableColumn;
import javax.swing.table.TableModel;
public class NewJFrame extends javax.swing.JFrame {
static String fileoriginal="C:/Users/Praneeth Thisal/Documents/NetBeansProjects/Copyfile/src/copyfile/";
public NewJFrame() {
initComponents();
tablemodel();
}
void tablemodel(){
Color choices[] = { Color.red, Color.yellow, Color.green, Color.white, Color.orange };
ComboTableCellRenderer renderer = new ComboTableCellRenderer();
JComboBox comboBox = new JComboBox(choices);
comboBox.setRenderer(renderer);
TableCellEditor editor = new DefaultCellEditor(comboBox);
TableModel model = new ColorTableModel();
jTable1.setModel(model);
TableColumn column = jTable1.getColumnModel().getColumn(5);
column.setCellRenderer(renderer);
column.setCellEditor(editor);
TableColumn column1 = jTable1.getColumnModel().getColumn(3);
column1.setCellRenderer(new ButtonRenderer());
TableColumn column2 = jTable1.getColumnModel().getColumn(4);
column2.setCellRenderer(new ImageRenderer());
column1.setCellEditor(
new ButtonEditor(new JCheckBox()));
jTable1.setAutoResizeMode(JTable.AUTO_RESIZE_OFF);
jTable1.getColumnModel().getColumn(0).setPreferredWidth(27);
jTable1.getColumnModel().getColumn(1).setPreferredWidth(120);
jTable1.getColumnModel().getColumn(2).setPreferredWidth(100);
jTable1.getColumnModel().getColumn(3).setPreferredWidth(90);
jTable1.getColumnModel().getColumn(4).setPreferredWidth(90);
}
/** This method is called from within the constructor to
* initialize the form.
* WARNING: Do NOT modify this code. The content of this method is
* always regenerated by the Form Editor.
*/
@SuppressWarnings("unchecked")
// <editor-fold defaultstate="collapsed" desc="Generated Code">
private void initComponents() {
jScrollPane1 = new javax.swing.JScrollPane();
jTable1 = new javax.swing.JTable();
setDefaultCloseOperation(javax.swing.WindowConstants.EXIT_ON_CLOSE);
getContentPane().setLayout(new org.netbeans.lib.awtextra.AbsoluteLayout());
jTable1.setModel(new javax.swing.table.DefaultTableModel(
new Object [][] {
{null, null, null, null, null, null},
{null, null, null, null, null, null},
{null, null, null, null, null, null},
{null, null, null, null, null, null}
},
new String [] {
"Title 1", "Title 2", "Title 3", "Title 4", "Title 5", "Title 6"
}
));
jScrollPane1.setViewportView(jTable1);
getContentPane().add(jScrollPane1, new org.netbeans.lib.awtextra.AbsoluteConstraints(25, 160, 730, 275));
java.awt.Dimension screenSize = java.awt.Toolkit.getDefaultToolkit().getScreenSize();
setBounds((screenSize.width-795)/2, (screenSize.height-651)/2, 795, 651);
}// </editor-fold>
/**
* @param args the command line arguments
*/
public static void main(String args[]) {
java.awt.EventQueue.invokeLater(new Runnable() {
public void run() {
new NewJFrame().setVisible(true);
}
});
}
// Variables declaration - do not modify
private javax.swing.JScrollPane jScrollPane1;
private javax.swing.JTable jTable1;
// End of variables declaration
}
class ImageRenderer extends DefaultTableCellRenderer {
JLabel lbl = new JLabel();
ImageIcon icon = new ImageIcon(new ImageIcon(NewJFrame.fileoriginal+"test.jpg").getImage().getScaledInstance(40, 40, Image.SCALE_DEFAULT));
public Component getTableCellRendererComponent(JTable table, Object value, boolean isSelected,
boolean hasFocus, int row, int column) {
lbl.setText((String) value);
lbl.setIcon(icon);
return lbl;
}
}
class ButtonRenderer extends JButton implements TableCellRenderer {
public ButtonRenderer() {
setOpaque(true);
}
public Component getTableCellRendererComponent(JTable table, Object value,
boolean isSelected, boolean hasFocus, int row, int column) {
value="Upload";
if (isSelected) {
setForeground(table.getSelectionForeground());
setBackground(table.getSelectionBackground());
} else {
setForeground(table.getForeground());
setBackground(UIManager.getColor("Button.background"));
// setText("dsda1");
}
setText((value == null) ? "" : value.toString());
return this;
}
}
/**
* @version 1.0 11/09/98
*/
class ButtonEditor extends DefaultCellEditor {
protected JButton button;
private String label;
private boolean isPushed;
public ButtonEditor(JCheckBox checkBox) {
super(checkBox);
button = new JButton();
button.setOpaque(true);
button.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
fireEditingStopped();
}
});
}
public Component getTableCellEditorComponent(JTable table, Object value,
boolean isSelected, int row, int column) {
if (isSelected) {
button.setForeground(table.getSelectionForeground());
button.setBackground(table.getSelectionBackground());
} else {
button.setForeground(table.getForeground());
button.setBackground(table.getBackground());
}
label = (value == null) ? "" : value.toString();
//label="DDD";
button.setText("Upload");
isPushed = true;
return button;
}
public Object getCellEditorValue() {
if (isPushed) {
//
JFileChooser jfc = new JFileChooser(FileSystemView.getFileSystemView().getHomeDirectory());
int returnValue = jfc.showOpenDialog(null);
// int returnValue = jfc.showSaveDialog(null);
if (returnValue == JFileChooser.APPROVE_OPTION) {
File selectedFile = jfc.getSelectedFile();
System.out.println(selectedFile.getAbsolutePath());
File source = new File(selectedFile.getAbsolutePath());
try{
NewJFrame.fileoriginal="C:/Users/Praneeth Thisal/Documents/NetBeansProjects/Copyfile/src/copyfile/";
copyFileUsingStream(source, new File(NewJFrame.fileoriginal+"test"+".jpg"));
System.out.println("Done");
NewJFrame nf = new NewJFrame();
nf.setVisible(true);
}
catch(IOException e){
e.printStackTrace();
}
}
// JOptionPane.showMessageDialog(button, label + ": Ouch!");
System.out.println(label + "Uploaded Successfully!!");
}
isPushed = false;
return new String(label);
}
private static void copyFileUsingStream(File source, File dest) throws IOException {
InputStream is = null;
OutputStream os = null;
try {
is = new FileInputStream(source);
os = new FileOutputStream(dest);
byte[] buffer = new byte[1024];
int length;
while ((length = is.read(buffer)) > 0) {
os.write(buffer, 0, length);
}
} finally {
is.close();
os.close();
}
}
public boolean stopCellEditing() {
isPushed = false;
return super.stopCellEditing();
}
protected void fireEditingStopped() {
super.fireEditingStopped();
}
}
ComboTableCellRenderer.java
package test4;
import java.awt.BorderLayout;
import java.awt.Color;
import java.awt.Component;
import javax.swing.DefaultCellEditor;
import javax.swing.DefaultListCellRenderer;
import javax.swing.ImageIcon;
import javax.swing.JComboBox;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JList;
import javax.swing.JScrollPane;
import javax.swing.JTable;
import javax.swing.ListCellRenderer;
import javax.swing.table.AbstractTableModel;
import javax.swing.table.DefaultTableCellRenderer;
import javax.swing.table.TableCellEditor;
import javax.swing.table.TableCellRenderer;
import javax.swing.table.TableColumn;
import javax.swing.table.TableModel;
class ComboTableCellRenderer implements ListCellRenderer, TableCellRenderer {
DefaultListCellRenderer listRenderer = new DefaultListCellRenderer();
DefaultTableCellRenderer tableRenderer = new DefaultTableCellRenderer();
private void configureRenderer(JLabel renderer, Object value) {
if ((value != null) && (value instanceof Color)) {
if (value.equals(Color.red)) {
renderer.setText("0");
} else if(value.equals(Color.orange)) {
renderer.setText("10");
}
else if(value.equals(Color.yellow)) {
renderer.setText("20");
}
else if(value.equals(Color.green)) {
renderer.setText("30");
}
else if(value.equals(Color.white)) {
renderer.setText("N/A");
}
renderer.setBackground((Color)value);
} else {
renderer.setText((String) value);
}
}
public Component getListCellRendererComponent(JList list, Object value, int index,
boolean isSelected, boolean cellHasFocus) {
listRenderer = (DefaultListCellRenderer) listRenderer.getListCellRendererComponent(list, value,
index, isSelected, cellHasFocus);
configureRenderer(listRenderer, value);
return listRenderer;
}
public Component getTableCellRendererComponent(JTable table, Object value, boolean isSelected,
boolean hasFocus, int row, int column) {
tableRenderer = (DefaultTableCellRenderer) tableRenderer.getTableCellRendererComponent(table,
value, isSelected, hasFocus, row, column);
configureRenderer(tableRenderer, value);
return tableRenderer;
}
}
class ColorTableModel extends AbstractTableModel {
Object rowData[][] = {
{ "1","","","","", Color.red, "30" },
{ "2","","","","", Color.red, "30" },
{ "3","","","","", Color.red, "30" },
{ "4","","","","", Color.red, "30" },
{ "5","","","","", Color.red, "30" }, };
String columnNames[] = { "Index","Item","Reason","Image","Image 1","Marks","Allocated Marks" };
public int getColumnCount() {
return columnNames.length;
}
public String getColumnName(int column) {
return columnNames[column];
}
public int getRowCount() {
return rowData.length;
}
public Object getValueAt(int row, int column) {
return rowData[row][column];
}
public Class getColumnClass(int column) {
return (getValueAt(0, column).getClass());
}
public void setValueAt(Object value, int row, int column) {
rowData[row][column] = value;
}
public boolean isCellEditable(int row, int column) {
return (column != 0);
}
}