Question

我在这里已经阅读了一些问题，但我仍然不明白如何“修剪”日期，JTable单元格（列）只有没有时间的日期。现在我在单元格中有日期和时间，但在DB中只保留日期，这就是为什么我到处都有 2013-04-02 00：00：00.0 ，但我想要 02-04-2013

try {
        Class.forName("sun.jdbc.odbc.JdbcOdbcDriver");
        String Base = "jdbc:odbc:Driver={Microsoft Access Driver (*.mdb)}; DBQ=SL2.mdb";
        con = DriverManager.getConnection(Base,"","");
        st = con.createStatement();
        res2 = st.executeQuery("SELECT * FROM Apmeklejumi");
        rsmd = res2.getMetaData();
        int column = rsmd.getColumnCount();
        columnNames.addElement("ID");
        columnNames.addElement("Iestašanas datums");
        columnNames.addElement("Sūdzības");
        columnNames.addElement("Diagnoze");
        columnNames.addElement("Rekomendācijas");
        columnNames.addElement("Pacienta ID");
        while(res2.next()) {
            Vector row = new Vector(column);
            row.addElement(res2.getObject("ID"));               
            row.addElement(res2.getObject("Ies_dat")); // <--- date
            row.addElement(res2.getObject("Sudz"));
            row.addElement(res2.getObject("Diag"));
            row.addElement(res2.getObject("Rekom"));
            row.addElement(res2.getObject("Pacienta_ID"));              
            data.addElement(row);
        }
        st.close();
        con.close();
    } catch(Exception e) {
        e.printStackTrace();
    }

Answer 1

默认情况下，Oracle教程How to Use Tables
将DateFormat DATE_FORMAT = new SimpleDateFormat("dd/MM/yyyy");用于XxxTableCellRenderer

例如

private static class DateRenderer extends DefaultTableCellRenderer {

    private static final long serialVersionUID = 1L;

    @Override
    public Component getTableCellRendererComponent(JTable table, Object value, 
             boolean isSelected, boolean hasFocus, int row, int column) {
        super.getTableCellRendererComponent(table, value, isSelected, 
             hasFocus, row, column);
        if (!(value instanceof Date)) {
            return this;
        }
        setText(DATE_FORMAT.format((Date) value));
        return this;
    }
}

修改

enter image description here

import java.awt.GridLayout;
import java.text.SimpleDateFormat;
import java.util.Date;
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JPanel;
import javax.swing.JScrollPane;
import javax.swing.JTable;
import javax.swing.table.DefaultTableCellRenderer;
import javax.swing.table.DefaultTableModel;
import javax.swing.table.TableColumnModel;
import javax.swing.table.TableModel;

public class SimpleTableDemo extends JPanel {

    private static final long serialVersionUID = 1L;
    private boolean DEBUG = false;
    private JTable table;
    private JButton okButton;
    private String[] columnNames = {"First Name", "Last Name", "Sport", "# of Years", "Vegetarian", "Date"};
    private Object[][] data = {{"Kathy", "Smith", "Snowboarding", new Integer(5), (false), new Date()},
        {"John", "Doe", "Rowing", new Integer(3), (true), new Date()},
        {"Sue", "Black", "Knitting", new Integer(2), (false), null},
        {"Jane", "White", "Speed reading", new Integer(20), (true), new Date()},
        {"Joe", "Brown", "Pool", new Integer(10), (false), new Date()},};
    private TableModel model = new DefaultTableModel(data, columnNames) {
        private static final long serialVersionUID = 1L;

        @Override
        public Class<?> getColumnClass(int column) {
            return getValueAt(0, column).getClass();
        }
    };

    public SimpleTableDemo() {
        super(new GridLayout(1, 0));
        table = new JTable(model);
        table.setRowHeight(20);
        table.setPreferredScrollableViewportSize(table.getPreferredSize());
        table.setFillsViewportHeight(true);
        TableColumnModel m = table.getColumnModel();
        m.getColumn(5).setCellRenderer(new SubstDateRenderer());
        JScrollPane scrollPane = new JScrollPane(table);
        add(scrollPane);
    }

    private static void createAndShowGUI() {
        JFrame frame = new JFrame("SimpleTableDemo");
        frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        SimpleTableDemo newContentPane = new SimpleTableDemo();
        newContentPane.setOpaque(true); // content panes must be opaque
        frame.setContentPane(newContentPane);
        frame.pack();
        frame.setVisible(true);
    }

    public static void main(String[] args) {
        javax.swing.SwingUtilities.invokeLater(new Runnable() {
            @Override
            public void run() {
                createAndShowGUI();
            }
        });
    }

    class SubstDateRenderer extends DefaultTableCellRenderer {

        private static final long serialVersionUID = 1L;
        private Date dateValue;
        private SimpleDateFormat sdfNewValue = new SimpleDateFormat("dd.MMMM.yyyy");
        private String sdfNewValueString = "";

        public SubstDateRenderer() {// formating TableCell
            super();
            setHorizontalAlignment(javax.swing.SwingConstants.CENTER);
        }

        @Override
        public void setValue(Object value) {
            if ((value != null) && (value instanceof Date)) {
                dateValue = (Date) value;
                sdfNewValueString = sdfNewValue.format(dateValue);
                value = sdfNewValueString;
            }
            super.setValue(value);
        }
    }
}

Answer 2

见Table Format Renderers。给出了一个简单的例子来显示日期。

编辑：

例如，您可以使用：

SimpleDateFormat format = new SimpleDateFormat("yy/MM/dd");
TableCellRenderer renderer = new FormatRenderer( format );
TableColumnModel tcm = table.getColumnModel();
tcm.getColumn(???).setCellRenderer(renderer);

从我上面给你的链接中，不要忘记按照“相关阅读”部分中的链接。

JTable中的MS Access DB哪个带有日期的单元格只有没有时间的日期

2 个答案: