在Jtable单元格中的复选框旁边插入文本

我已经习惯了这一段时间了，我能找到的所有解决方案和工作示例包括使用内置布尔TableCellRenderers渲染的复选框，即一个单元格只能有一个复选框。 我没有找到任何工作示例，其中在该SAME单元​​格中的复选框旁边会有一些文本，或者更具体地说是允许复选框和文本的JCheckBox。

Answer 1

如果您的数据/要求不符合默认的可用function，则需要提供自定义解决方案

我建议你先看看使用自定义渲染器

import java.awt.BorderLayout; import java.awt.Component; import java.awt.EventQueue; import javax.swing.JCheckBox; import javax.swing.JFrame; import javax.swing.JPanel; import javax.swing.JScrollPane; import javax.swing.JTable; import javax.swing.UIManager; import javax.swing.UnsupportedLookAndFeelException; import javax.swing.table.DefaultTableModel; import javax.swing.table.TableCellRenderer; public class Test { public static void main(String[] args) { new Test(); } public class Data { private String text; private boolean selected; public Data(String text, boolean selected) { this.text = text; this.selected = selected; } public String getText() { return text; } public void setText(String text) { this.text = text; } public boolean isSelected() { return selected; } public void setSelected(boolean state) { this.selected = state; } } public Test() { EventQueue.invokeLater(new Runnable() { @Override public void run() { try { UIManager.setLookAndFeel(UIManager.getSystemLookAndFeelClassName()); } catch (ClassNotFoundException | InstantiationException | IllegalAccessException | UnsupportedLookAndFeelException ex) { ex.printStackTrace(); } JFrame frame = new JFrame("Testing"); frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); frame.add(new TestPane()); frame.pack(); frame.setLocationRelativeTo(null); frame.setVisible(true); } }); } public class TestPane extends JPanel { public TestPane() { setLayout(new BorderLayout()); DefaultTableModel model = new DefaultTableModel(new String[] {"Something"}, 0) { @Override public Class getColumnClass(int columnIndex) { return Data.class; } }; model.addRow(new Object[]{new Data("Hello", true)}); model.addRow(new Object[]{new Data("Goodbye", false)}); model.addRow(new Object[]{new Data("Do you want to play a game?", true)}); model.addRow(new Object[]{new Data("Yesturday", false)}); model.addRow(new Object[]{new Data("Tomorrow", true)}); model.addRow(new Object[]{new Data("Java", false)}); model.addRow(new Object[]{new Data("Swift", false)}); model.addRow(new Object[]{new Data("Helicopter", true)}); JTable table = new JTable(model); table.setDefaultRenderer(Data.class, new DataTableCellRenderer()); add(new JScrollPane(table)); } } public class DataTableCellRenderer extends JCheckBox implements TableCellRenderer { @Override public Component getTableCellRendererComponent(JTable table, Object value, boolean isSelected, boolean hasFocus, int row, int column) { if (isSelected) { setBackground(table.getSelectionBackground()); setForeground(table.getSelectionForeground()); } else { setBackground(table.getBackground()); setForeground(table.getForeground()); } if (value instanceof Data) { Data data = (Data)value; setText(data.getText()); setSelected(data.isSelected()); } return this; } } } 

在这一点上，我想知道JTable是否是最好的解决方案，如果JList可能更好

当然，另一个可能更适合JTable是设计一个自定义的TableModel ，它可以将数据分解为单独的列……

 import java.awt.BorderLayout; import java.awt.EventQueue; import java.util.ArrayList; import java.util.List; import javax.swing.JFrame; import javax.swing.JPanel; import javax.swing.JScrollPane; import javax.swing.JTable; import javax.swing.UIManager; import javax.swing.UnsupportedLookAndFeelException; import javax.swing.table.AbstractTableModel; import javax.swing.table.DefaultTableModel; public class Test { public static void main(String[] args) { new Test(); } public class Data { private String text; private boolean selected; public Data(String text, boolean selected) { this.text = text; this.selected = selected; } public String getText() { return text; } public void setText(String text) { this.text = text; } public boolean isSelected() { return selected; } public void setSelected(boolean state) { this.selected = state; } } public Test() { EventQueue.invokeLater(new Runnable() { @Override public void run() { try { UIManager.setLookAndFeel(UIManager.getSystemLookAndFeelClassName()); } catch (ClassNotFoundException | InstantiationException | IllegalAccessException | UnsupportedLookAndFeelException ex) { ex.printStackTrace(); } JFrame frame = new JFrame("Testing"); frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); frame.add(new TestPane()); frame.pack(); frame.setLocationRelativeTo(null); frame.setVisible(true); } }); } public class TestPane extends JPanel { public TestPane() { setLayout(new BorderLayout()); DataTableModel model = new DataTableModel(); model.add(new Data("Hello", true)); model.add(new Data("Goodbye", false)); model.add(new Data("Do you want to play a game?", true)); model.add(new Data("Yesturday", false)); model.add(new Data("Tomorrow", true)); model.add(new Data("Java", false)); model.add(new Data("Swift", false)); model.add(new Data("Helicopter", true)); JTable table = new JTable(model); add(new JScrollPane(table)); } } public class DataTableModel extends AbstractTableModel { private List rows = new ArrayList<>(25); public void add(Data data) { int rowCount = getRowCount(); rows.add(data); fireTableRowsInserted(rowCount, rowCount); } @Override public String getColumnName(int column) { switch (column) { case 0: return ""; case 1: return "Option"; } return null; } @Override public int getRowCount() { return rows.size(); } @Override public int getColumnCount() { return 2; } @Override public Class getColumnClass(int columnIndex) { switch (columnIndex) { case 0: return Boolean.class; case 1: return String.class; } return Object.class; } @Override public Object getValueAt(int rowIndex, int columnIndex) { Data row = rows.get(rowIndex); switch (columnIndex) { case 0: return row.isSelected(); case 1: return row.getText(); } return null; } } } 

恕我直言，这是使用JTable的更好解决方案