JTable内容居中显示

要让JTable的内容居中显示方法如下：JTable tabledata = new JTable();DefaultTableCellRenderer tcr = new DefaultTableCellRenderer();// 设置table内容居中
// tcr.setHorizontalAlignment(JLabel.CENTER);
tcr.setHorizontalAlignment(SwingConstants.CENTER);// 这句和上句作用一样
tabledata.setDefaultRenderer(Object.class, tcr);参考:
import java.awt.Component;

import javax.swing.JFrame;
import javax.swing.JScrollPane;
import javax.swing.JTable;
import javax.swing.SwingConstants;
import javax.swing.table.DefaultTableCellRenderer;
import javax.swing.table.TableCellRenderer;

public class MyJTable extends JTable {
private MyCellRenderer renderer;

public MyJTable(MyCellRenderer renderer) {
super(8, 6);
this.renderer = renderer;
}

public TableCellRenderer getCellRenderer(int row, int column) {
return renderer;
}

public static void main(String[] args) {
MyJTable t = new MyJTable(new MyCellRenderer());
JScrollPane pane1 = new JScrollPane(t);//
JFrame frame = new JFrame("JTableDemo");
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
frame.setContentPane(pane1);
frame.pack();
frame.setVisible(true);

}
}

class MyCellRenderer extends DefaultTableCellRenderer {

public Component getTableCellRendererComponent(JTable table, Object value, boolean isSelected,
boolean hasFocus, int row, int column) {
super.getTableCellRendererComponent(table, value, isSelected, hasFocus, row, column);
setHorizontalAlignment(SwingConstants.CENTER);
return this;
}
}