为什么你的意思是不起作用？？？
import java.awt.*;
import javax.swing.*;
import javax.swing.table.*;
public class TableCellClass {
private JFrame frame = new JFrame("Table Demo");
private String[] columnNames = {"String", "Integer", "Float", "Double", "Locale & Double", "Boolean"};
private Object[][] data = {
{"aaa", new Integer(12), new Float(12.15), new Double(100.05), new Double(12.05), true},
{"bbb", new Integer(5), new Float(7.154), new Double(6.1555), new Double(417.55), false},
{"CCC", new Integer(92), new Float(0.1135), new Double(3.1455), new Double(11.05), true},
{"ddd", new Integer(12), new Float(31.15), new Double(10.05), new Double(23.05), true},
{"eee", new Integer(5), new Float(5.154), new Double(16.1555), new Double(17.55), false},
{"fff", new Integer(92), new Float(4.1135), new Double(31.1455), new Double(3.05), true}};
private TableModel model = new DefaultTableModel(data, columnNames) {
private static final long serialVersionUID = 1L;
@Override
public Class<?> getColumnClass(int column) {
return getValueAt(0, column).getClass();
}
};
private JTable table = new JTable(model);
public TableCellClass() {
table.setRowHeight(20);
//table.setPreferredScrollableViewportSize(table.getPreferredSize());
table.setBackground(Color.red);
JScrollPane scroll = new JScrollPane(table);
scroll.getViewport().setBackground(Color.blue);
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
frame.add(scroll);
frame.pack();
frame.setLocation(150, 150);
frame.setVisible(true);
}
public static void main(String[] args) {
EventQueue.invokeLater(new Runnable() {
@Override
public void run() {
TableCellClass tableCellClass = new TableCellClass();
}
});
}
}
这可能会更好，如果你想玩不透明度？？？
import java.awt.*;
import javax.swing.*;
public class TableWithTimer {
private static final long serialVersionUID = 1L;
private JFrame frame = new JFrame();
private JScrollPane scroll = new JScrollPane();
private JTable myTable;
private String[] head = {"One", "Two", "Three", "Four", "Five", "Six"};
private String[][] data = new String[25][6];
public TableWithTimer() {
myTable = new TableBackroundPaint0(data, head);
myTable.setSelectionMode(ListSelectionModel.SINGLE_SELECTION);
myTable.setGridColor(Color.gray);
myTable.setAutoResizeMode(JTable.AUTO_RESIZE_OFF);
scroll.setViewportView(myTable);
frame.add(scroll, BorderLayout.CENTER);
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
frame.setLocation(100, 100);
frame.pack();
frame.setVisible(true);
}
public static void main(String args[]) {
SwingUtilities.invokeLater(new Runnable() {
@Override
public void run() {
TableWithTimer tableWithTimer = new TableWithTimer();
}
});
}
}
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);
}
}
