救命啊!关于JTable的设置问题……

Question

关于居中显示，重写这个方法就行了。  public Component getTableCellRendererComponent(
        JTable table,Object value,boolean isSelected,
        boolean hasFocus,int row,int col){
      this.setText(value.toString());
      setFont(new Font("SansSerif",0,12));
      setHorizontalAlignment(SwingConstants.CENTER);//在这里
      if(isSelected){
        super.setBackground(table.getSelectionBackground());
        this.setForeground(Color.red);
      }else{
        this.setBackground(Color.orange);
        this.setForeground(Color.red);
      }
      if (hasFocus) {
        setBorder( new LineBorder(new Color(0,200,0),1) );
      }else{
        setBorder(new EmptyBorder(1, 1, 1, 1));
      }
      if(table.getModel().isCellEditable(row,col)){
        this.setBackground(Color.white);
        this.setForeground(Color.black);
      }
      return this;
    }