Swing之JTable操作

偏执的太偏执、 2021-12-16 14:33 289阅读 0赞

点击按钮后从一个窗口跳转到另外一个窗口把当前窗口关闭：

JComponent comp = (JComponent)e.getSource();
    Window window = SwingUtilities.getWindowAncestor(comp);
    window.dispose();

JTable增删改查

// 表头
    private String[] head = null;
    // 表数据
    private Object[][] data = null;
    private JTable table;
    
    table = new JTable();
    table.setFont(new Font("华文楷体", Font.PLAIN, 15));
    table.setBorder(new LineBorder(new Color(0, 0, 0)));
    table.setAlignmentX(CENTER_ALIGNMENT);
    // 表格数据行高
    table.setRowHeight(30);
    // 表格数据居中
    setTableColumnCenter(table);
    // 表头
    head = new String[] {  "编号", "货物名称", "货物单价", "货物数量"};
    // 设置表头样式
    JTableHeader header = table.getTableHeader();
    // 表头字体和行高
    header.setPreferredSize(new Dimension(header.getWidth(), 30));
    header.setFont(new Font("华文楷体", Font.PLAIN, 18));
    // 填充表格
    DefaultTableModel tableModel=new DefaultTableModel(queryData(),head){ 
        public boolean isCellEditable(int row, int column) { 
        	// 单元格不可编辑
            return false;
        }
    };
    table.setModel(tableModel);

生成表格数据

public Object[][] queryData() { 
    	List<Goods> list = goodsDao.queryAll();
    	data = new Object[list.size()][head.length];
    
    	for (int i = 0; i < list.size(); i++) { 
    		for (int j = 0; j < head.length; j++) { 
    			data[i][0] = list.get(i).getId();
    			data[i][1] = list.get(i).getName();
    			data[i][2] = list.get(i).getPrice();
    			data[i][3] = list.get(i).getNum();
    		}
    	}
    	return data;
    }

表格数据居中

public void setTableColumnCenter(JTable table){ 
    	DefaultTableCellRenderer r = new DefaultTableCellRenderer();   
    	r.setHorizontalAlignment(JLabel.CENTER);   
    	table.setDefaultRenderer(Object.class, r);
    }