如何控制JTable中的字体样式，颜色和大小？

我在Java Swing中有一个JTable 。 我需要设置字体大小，颜色和样式。 如何在JTable实现它？

Answer 1

为什么在JTable中设置TableRenderer进行基本设置，更多 – > JTable＃setWhatever

编辑（拆除镇流器）代码：

 import java.awt.*; import javax.swing.*; import javax.swing.table.DefaultTableModel; public class TableExample { public TableExample() { Object[][] data1 = new Object[50][5]; for (int i = 0; i < data1.length; i++) { data1[i][0] = "Company # " + (i + 1); for (int j = 1; j < data1[i].length; j++) { data1[i][j] = "" + (i + 1) + ", " + j; } } String[] headers = {"Col 1", "Col 2", "Col 3", "Col 4", "Col 5"}; DefaultTableModel model1 = new DefaultTableModel(data1, headers); final JTable jTable1 = new JTable(model1); jTable1.setBackground(Color.orange); jTable1.setForeground(Color.blue); jTable1.setRowHeight(24); jTable1.setFont(new Font("Arial", Font.BOLD, 12)); jTable1.setSelectionMode(ListSelectionModel.SINGLE_SELECTION); final JScrollPane sp1 = new JScrollPane(); sp1.setPreferredSize(new Dimension(600, 200)); sp1.setViewportView(jTable1); final JTable jTable2 = new JTable(model1); jTable2.setSelectionMode(ListSelectionModel.SINGLE_SELECTION); final JScrollPane sp2 = new JScrollPane(); sp2.setPreferredSize(new Dimension(600, 200)); sp2.setViewportView(jTable2); final JTable jTable3 = new TableBackroundPaint0(data1, headers); jTable3.setSelectionMode(ListSelectionModel.SINGLE_SELECTION); jTable3.setModel(model1); final JScrollPane sp3 = new JScrollPane(); sp3.setPreferredSize(new Dimension(600, 200)); sp3.setViewportView(jTable3); JPanel panel1 = new JPanel(); panel1.setLayout(new GridLayout(3, 0, 10, 10)); panel1.add(sp1); panel1.add(sp2); panel1.add(sp3); JFrame frame = new JFrame("tableSelection"); frame.add(panel1); frame.pack(); frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); frame.setVisible(true); } public static void main(String[] args) { SwingUtilities.invokeLater(new Runnable() { @Override public void run() { TableExample te = new TableExample(); } }); } } class TableBackroundPaint0 extends JTable { private static final long serialVersionUID = 1L; TableBackroundPaint0(Object[][] data, Object[] head) { super(data, head); setOpaque(false); ((JComponent) getDefaultRenderer(Object.class)).setOpaque(false); } @Override public void paintComponent(Graphics g) { Color background = new Color(168, 210, 241); Color controlColor = new Color(230, 240, 230); int width = getWidth(); int height = getHeight(); Graphics2D g2 = (Graphics2D) g; Paint oldPaint = g2.getPaint(); g2.setPaint(new GradientPaint(0, 0, background, width, 0, controlColor)); g2.fillRect(0, 0, width, height); g2.setPaint(oldPaint); for (int row : getSelectedRows()) { Rectangle start = getCellRect(row, 0, true); Rectangle end = getCellRect(row, getColumnCount() - 1, true); g2.setPaint(new GradientPaint(start.x, 0, controlColor, (int) ((end.x + end.width - start.x) * 1.25), 0, Color.orange)); g2.fillRect(start.x, start.y, end.x + end.width - start.x, start.height); } super.paintComponent(g); } } 

Answer 2

设置自定义TableCellRenderer 。 有关更多详细信息，请参阅Java教程中的如何使用表 – 概念：编辑器和渲染器 。