Jtable / ResultSet中的格式化日期 [英] Format Date in Jtable/ResultSet

问题描述

我在 JTable 中以我想要的格式显示 Date 时遇到问题。我的 JTable 已使用ResultSet和列表创建。

I am having trouble displaying Dates in the format I want in my JTable. My JTable has been created using a ResultSet and lists.

我在 getValueAt（。）中尝试了以下操作，但没有运气：

I tried the following in getValueAt(.) but no luck:

        if(value instanceof Date)
        {
            //System.out.println("isDate");
            DateFormat formatter = DateFormat.getDateInstance();
            SimpleDateFormat f = new SimpleDateFormat("MM/dd/yy");
            value = f.format(value);
            Date parsed  = (Date) value;
            try {
                parsed = (Date) f.parse(value.toString());
            } catch (ParseException e) {
                // TODO Auto-generated catch block
                e.printStackTrace();
            }
            value = parsed.toString();
        }

println（。）永远不会打印，所以它甚至没有达到那个目的。显示的格式是 1992年4月10日但我要 04/10/92

The println(.) is never printed so it isn't even getting to that. The Format that is being displayed is Apr 10, 1992 but I want 04/10/92

当我们在 JTables 中讨论日期的主题时......我将 isCellEditable（。）视为true，但我无法编辑Date单元格。你是怎么做到的？

While we are on the topic of Date in JTables... I have isCellEditable(.) as true but I cannot edit the Date cells. How do you do this?

推荐答案

不要覆盖 getValue ，使用 TableCellRenderer 而不是：

Do not override getValue, use a TableCellRenderer instead:

TableCellRenderer tableCellRenderer = new DefaultTableCellRenderer() {

    SimpleDateFormat f = new SimpleDateFormat("MM/dd/yy");

    public Component getTableCellRendererComponent(JTable table,
            Object value, boolean isSelected, boolean hasFocus,
            int row, int column) {
        if( value instanceof Date) {
            value = f.format(value);
        }
        return super.getTableCellRendererComponent(table, value, isSelected,
                hasFocus, row, column);
    }
};

table.getColumnModel().getColumn(0).setCellRenderer(tableCellRenderer);

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