JDatechooser 显示不正确的日期

Question

我正在研究 java 摇摆程序。有日期并将它的值存储在 jtable 中我一直在使用 Jdatechooser 但它只在我运行文件时工作一次但之后它不起作用并显示不正确的日期。

SimpleDateFormat sdf =  new SimpleDateFormat("yyyy-MM-dd");  
String date=sdf.format(jDateChooser2.getDate());

jtable 中的值

jDateChooser2.setDateFormatString((String) model.getValueAt(selectRow, 3));

在数据库中存储数据的代码：

String e_id;
        String type = type_exp.getSelectedItem().toString();
        String amount = amnt.getText();
 
        SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd");
        String date = sdf.format(jDateChooser2.getDate());
        String disc = disc_.getText();

        try {
            String sql = "insert into expance(type_expance,amount,exp_date,disc) values('" + type + "','" + amount + "','" + date + "','" + disc + "')";  //"++" use this pattern to pass variables
            int n = st.executeUpdate(sql);         //use this for insert/update/delte query and for searching ExecuteQuery
            if (n == 1) {
                JOptionPane.showMessageDialog(this, n + " records saved successfully..");
            } else {
                JOptionPane.showMessageDialog(this, "something went wrong");
            }
        } catch (Exception ex) {
            JOptionPane.showMessageDialog(this, ex.getMessage());
        }

在 jtable 中获取值的代码：

try {
            String sql = "select * from expance";
            rs = st.executeQuery(sql);
            DefaultTableModel model = (DefaultTableModel) jTable1.getModel();
            model.setRowCount(0);
            while (rs.next()) {
                model.addRow(new Object[]{rs.getString("e_id"), rs.getString("type_expance"), rs.getString("amount"), rs.getString("exp_date"), rs.getString("disc")});
            }
        } catch (Exception ex) {
            JOptionPane.showMessageDialog(this, ex.getMessage());
        }

Answer 1

您设置的是格式而不是日期。

String pattern = "yyyy-MM-dd";
SimpleDateFormat simpleDateFormat = new SimpleDateFormat(pattern);
Date date = simpleDateFormat.parse((String) model.getValueAt(selectRow, 3));
//Sets format
jDateChooser2.setDateFormatString(pattern );
//Sets the date
jDateChooser2.setDate(date );

JDatechooser 显示不正确的日期

JDatechooser shows incorrect date

java

swing

jtable

jdatechooser