将 cellpadding 添加到 Java JTable

我正在尝试实现 Swing JTable。我按照教程进行操作http://docs.oracle.com/javase/tutorial/uiswing/components/table.html#simple http://docs.oracle.com/javase/tutorial/uiswing/components/table.html#simple

我希望表格单元格不可编辑（这有效），并且我希望表格单元格的边框有更多填充。就像 HTML 中的 cellpadding 一样。

这是我的代码的一部分，而 cellpadding 不起作用。

class BoardTableCellRenderer extends DefaultTableCellRenderer {

    private static final long serialVersionUID = 1L;

    public Component getTableCellRendererComponent(JTable table, Object value, boolean isSelected, boolean hasFocus, int row, int col) {
        super.getTableCellRendererComponent(table, value, isSelected, hasFocus, row, col);
        setBorder(BorderFactory.createEmptyBorder(15,15,15,15));
        return this;
    }
}

String[] columnNames = {"Datei",
        "Zeile",
        "Zeichen",
        "Fehler", "test"};

Object[][] data = {
        {"Kathy", "Smith", "Snowboarding", new Integer(5), new Boolean(false)},
        {"John", "Doe", "Rowing", new Integer(3), new Boolean(true)},
        {"Sue", "Black", "Knitting", new Integer(2), new Boolean(false)},
        {"Jane", "White", "Speed reading", new Integer(20), new Boolean(true)},
        {"Joe", "Brown", "Pool", new Integer(10), new Boolean(false)}
    };

JTable table = new JTable(data, columnNames){
    private static final long serialVersionUID = -4430174981226468686L;

    @Override
    public boolean isCellEditable(int arg0, int arg1) {
        return false;
    }};

table.setAutoCreateRowSorter(true);
table.getTableHeader().setReorderingAllowed(false);
table.setDefaultRenderer(String.class, new BoardTableCellRenderer());

table被放置在JScrollPane。表格已显示，单元格不可编辑，但未应用单元格填充！

有人可以帮忙吗？谢谢 ：）

默认实现getColumnClass() in DefaultTableModel这是由JTable（默认）返​​回Object.class。这就是原因BoardTableCellRenderer未使用，因为您正在为列设置它String.class.

您可以覆盖getColumnClass。或者对于此示例，替换：

table.setDefaultRenderer(String.class, new BoardTableCellRenderer());

with:

table.setDefaultRenderer(Object.class, new BoardTableCellRenderer());

看看效果BoardTableCellRenderer.