サンプル
* 基本編 import java.awt.BorderLayout;
import java.awt.Dimension;
import java.util.ArrayList;
import javax.swing.JFrame;
import javax.swing.JPanel;
import javax.swing.JScrollPane;
import javax.swing.JTable;
import javax.swing.table.DefaultTableModel;
public class TableSample extends JFrame {
private static final long serialVersionUID = 1L;
public static void main(String[] args) {
TableSample sample = new TableSample();
sample.setVisible(true);
}
public TableSample() {
ArrayList<Person> people = new ArrayList<Person>() {
private static final long serialVersionUID = 1L;
{
add(new Person(1L, "Mike", 23));
add(new Person(2L, "Tom", 15));
add(new Person(3L, "Kevin", 36));
add(new Person(4L, "Cocolo", 13));
add(new Person(5L, "Mike", 41));
}
};
String[] columnNames = {"ID", "Name", "Age",};
DefaultTableModel tableModel = new DefaultTableModel(columnNames, 0);
JTable table = new JTable(tableModel);
for(Person person : people){
tableModel.addRow(toTableData(person));
}
JScrollPane scrollPane = new JScrollPane(table);
scrollPane.setPreferredSize(new Dimension(400, 100));
JPanel panel = new JPanel();
panel.add(scrollPane);
this.getContentPane().add(panel, BorderLayout.CENTER);
this.setTitle("This is title");
this.setSize(500, 300);
this.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
}
private static String[] toTableData(Person person) {
String[] returnValues = new String[3];
returnValues[0] = person.getId().toString();
returnValues[1] = person.getName();
returnValues[2] = person.getAge().toString();
return returnValues;
}
}
* 応用編（テキストボックスとボタンを付けて検索機能にした） import java.awt.BorderLayout;
import java.awt.Dimension;
import java.awt.Toolkit;
import java.awt.datatransfer.Clipboard;
import java.awt.datatransfer.StringSelection;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.event.MouseEvent;
import java.awt.event.MouseListener;
import java.util.ArrayList;
import java.util.List;
import java.util.stream.Collectors;
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JMenuItem;
import javax.swing.JOptionPane;
import javax.swing.JPanel;
import javax.swing.JPopupMenu;
import javax.swing.JScrollPane;
import javax.swing.JTable;
import javax.swing.JTextField;
import javax.swing.table.DefaultTableModel;
import javax.swing.table.TableColumn;
public class TableSample extends JFrame implements MouseListener, ActionListener {
private static final long serialVersionUID = 1L;
public static void main(String[] args) {
TableSample sample = new TableSample();
sample.setVisible(true);
}
private String[] columnNames = { "ID", "Name", "Age", };
private List<Person> people;
private JPanel tablePanel;
private JScrollPane scrollPane;
private DefaultTableModel tableModel;
private JTable table;
private JTextField textField;
private JButton searchButton;
private JPopupMenu popup;
private JMenuItem copyMenuItem;
public TableSample() {
JPanel textAndButtonPanel = new JPanel();
JLabel label = new JLabel("Target Name : ");
textAndButtonPanel.add(label);
this.textField = new JTextField();
this.textField.setPreferredSize(new Dimension(100, 20));
textAndButtonPanel.add(this.textField);
this.searchButton = new JButton("Search");
this.searchButton.addActionListener(this);
textAndButtonPanel.add(this.searchButton);
this.getContentPane().add(textAndButtonPanel, BorderLayout.NORTH);
this.people = new ArrayList<Person>() {
private static final long serialVersionUID = 1L;
{
add(new Person(1L, "Mike", 23));
add(new Person(2L, "Tom", 15));
add(new Person(3L, "Kevin", 36));
add(new Person(4L, "Cocolo", 13));
add(new Person(5L, "Mike", 41));
}
};
this.tableModel = new DefaultTableModel(this.columnNames, 0);
this.table = new JTable(this.tableModel);
// this.table.setColumnSelectionAllowed(true);
// this.table.setRowSelectionAllowed(true);
for (Person person : this.people) {
this.tableModel.addRow(toTableData(person));
}
this.table.addMouseListener(this);
this.scrollPane = new JScrollPane(this.table);
this.scrollPane.setPreferredSize(new Dimension(400, 100));
this.tablePanel = new JPanel();
this.tablePanel.add(this.scrollPane);
this.getContentPane().add(this.tablePanel, BorderLayout.CENTER);
// 右クリック
this.popup = new JPopupMenu();
this.copyMenuItem = new JMenuItem("コピー");
this.copyMenuItem.addActionListener(this);
this.popup.add(this.copyMenuItem);
;
this.setTitle("This is title");
this.setSize(500, 300);
this.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
}
private static String[] toTableData(Person person) {
String[] returnValues = new String[3];
returnValues[0] = person.getId().toString();
returnValues[1] = person.getName();
returnValues[2] = person.getAge().toString();
return returnValues;
}
@Override
public void actionPerformed(ActionEvent actionEvent) {
Object control = actionEvent.getSource();
if (control == this.searchButton) {
this.search();
} else if (control == this.copyMenuItem) {
this.copy();
}
}
private void copy() {
int[] rows = table.getSelectedRows();
int[] columns = table.getSelectedColumns();
StringBuffer buffer = new StringBuffer();
for (int i = 0; i < table.getColumnCount(); i++) {
TableColumn tableColumn = table.getColumnModel().getColumn(i);
buffer.append((String) tableColumn.getIdentifier());
if (i < table.getColumnCount() - 1) {
// タブ文字を付加
buffer.append("\t");
} else {
buffer.append("\n");
}
}
for (int i = 0; i < rows.length; i++) {
for (int j = 0; j < columns.length; j++) {
Object cellValue = table.getValueAt(rows[i], columns[j]);
buffer.append((String) cellValue);
if (j < columns.length - 1) {
buffer.append("\t");
}
}
buffer.append("\n");
}
copyToClipboard(buffer.toString());
}
private void copyToClipboard(String copyString) {
Clipboard clipboard = Toolkit.getDefaultToolkit().getSystemClipboard();
StringSelection contents = new StringSelection(copyString);
clipboard.setContents(contents, null);
}
private void search() {
String targetName = this.textField.getText();
List<Person> peopleForFilter;
if (targetName == null || targetName.isEmpty()) {
peopleForFilter = this.people;
} else {
peopleForFilter = this.people.stream().filter(x -> x.getName().indexOf(targetName) != -1)
.collect(Collectors.toList());
if (peopleForFilter.isEmpty()) {
JOptionPane.showMessageDialog(this, "Not Found", "Info", JOptionPane.INFORMATION_MESSAGE);
return;
}
}
this.tablePanel.remove(this.scrollPane);
this.tableModel = new DefaultTableModel(this.columnNames, 0);
this.table = new JTable(this.tableModel);
// this.table.setColumnSelectionAllowed(true);
// this.table.setRowSelectionAllowed(true);
for (Person person : peopleForFilter) {
this.tableModel.addRow(toTableData(person));
}
this.table.addMouseListener(this);
this.scrollPane = new JScrollPane(this.table);
this.scrollPane.setPreferredSize(new Dimension(400, 100));
this.tablePanel.add(this.scrollPane);
this.repaint();
this.revalidate();
}
@Override
public void mouseClicked(MouseEvent e) {
// Do nothing
}
@Override
public void mousePressed(MouseEvent e) {
this.showPopup(e);
}
@Override
public void mouseReleased(MouseEvent e) {
this.showPopup(e);
}
@Override
public void mouseEntered(MouseEvent e) {
// Do nothing
}
@Override
public void mouseExited(MouseEvent e) {
// Do nothing
}
private void showPopup(MouseEvent event) {
if (event.isPopupTrigger()) {
this.popup.show(event.getComponent(), event.getX(), event.getY());
}
}
}