设计一个特殊表格的JTable控件 

public class MutilHeadTable extends JTable {

	public MutilHeadTable(TableModel tm) {
		super(tm);
		init();
	}
	
	private void init(){
		//为每个列添加自定义的RENDER.这个Api设计比较麻烦.
		CustomizedHeaderRender r = new CustomizedHeaderRender();
		for (int i=0; i< getModel().getColumnCount(); i++) {
			 TableColumn column = getColumnModel().getColumn(i);
			 column.setHeaderRenderer(new CustomizedHeaderRender());
		}
	}
	private class CustomizedHeaderRender extends DefaultTableCellRenderer{
		public Component getTableCellRendererComponent(JTable table,
				Object value, boolean isSelected, boolean hasFocus, int row,
                int column) {
			 if(value!=null && value instanceof String){
				 StringTokenizer t = new StringTokenizer((String)value,"/");
				 StringBuffer bf = new StringBuffer();
				 bf.append("<html>");
				 while (t.hasMoreElements()){
					 bf.append(t.nextElement());
					 if(t.hasMoreElements()){
						 bf.append("<br>");
					 }else{
						  bf.append("</html>");
					 }
				 }
				 return new JLabel(bf.toString());
			 }
			 return this;
		}
	}
	
	public static void main(String[] args) {
		JFrame frame = new JFrame("Leaders");
		Container contentPane = frame.getContentPane();
		String headers[] = {"Line1/line2/line3", "Country"};
		String data[][] = {
				{"Tony Blair", "England"},
				{"Thabo Mbeki", "South Africa"},
		};
		TableModel model = new DefaultTableModel(data, headers);
		MutilHeadTable table = new MutilHeadTable(model);
		JScrollPane scrollPane = new JScrollPane (table);
		contentPane.add(scrollPane, BorderLayout.CENTER);
		frame.setSize(300, 100);
		frame.setVisible(true);
	}
}

　　效果图：

 

posted @ 2021-02-02 21:08  信铁寒胜  阅读(127)  评论(0)    收藏  举报