如何在新打开的jframe上关闭以前的jframe

Question

我有一个问题，就是在一次单击一个按钮的过程中处理两个JFrames。我有2个JFrames(SUC_Forms和add_suc)，当SUC_Forms中的按钮“Add Records”被点击时，将显示另一个新的JFrame，它是add_suc JFrame，包含注册/归档的文本框。当我按ok验证并插入数据库中的所有数据时，将弹出一个JDialogbox进行确认。当我点击“OK”后，两个JFrames都将进行处理，然后SUC_Forms-JFrame将再次显示，其中包含更新后的数据。我有一个问题，当前的JFrames如何能够访问以前的和活动的JFrames。你能帮我解决这个问题吗？事先谢谢..

这是我的打印屏幕。

SUC_Forms代码：

    add_suc add = new add_suc();
    add.show();

private void btn_okActionPerformed（java.awt.event.ActionEvt）{

    int verify = JOptionPane.showConfirmDialog(rootPane,"Are you sure you want to add this record?","", JOptionPane.YES_NO_OPTION);

    if(verify == 0)
    {

       String moa_id = txt_id.getText();
       Object region = cmb_region.getSelectedItem();
       String holder = txt_holder.getText();
       String brgy = txt_brgy.getText();
       String municipality = txt_municipality.getText();
       String province = txt_province.getText();
       String president = txt_president.getText();
       Object month = cmb_month.getSelectedItem();
       Object day = cmb_day.getSelectedItem();
       String year = txt_year.getText();
       String area = txt_area.getText();
       String allotment = txt_allotment.getText();
       String activities = txt_activities.getText();
       String status = txt_status.getText();
       String fill = "";

       if(moa_id.equals(fill))
       {
           JOptionPane.showMessageDialog(rootPane, "Please fill Moa ID!", "Message",JOptionPane.ERROR_MESSAGE,null);
       }

       if(region.equals(fill))
       {
           JOptionPane.showMessageDialog(rootPane, "Please select region!", "Message",JOptionPane.ERROR_MESSAGE,null);
       }
       else if(holder.equals(fill))
       {
           JOptionPane.showMessageDialog(rootPane, "Please fill holder!", "Message",JOptionPane.ERROR_MESSAGE,null);
       }
       else if(brgy.equals(fill))
       {
           JOptionPane.showMessageDialog(rootPane, "Please fill barangay!", "Message",JOptionPane.ERROR_MESSAGE,null);
       }
       else if(municipality.equals(fill))
       {
           JOptionPane.showMessageDialog(rootPane, "Please fill municipality!", "Message",JOptionPane.ERROR_MESSAGE,null);
       }
       else if(province.equals(fill))
       {
           JOptionPane.showMessageDialog(rootPane, "Please fill province!", "Message",JOptionPane.ERROR_MESSAGE,null);
       }
        else if(president.equals(fill))
       {
           JOptionPane.showMessageDialog(rootPane, "Please fill president/representative!", "Message",JOptionPane.ERROR_MESSAGE,null);
       }
        else if(month.equals(fill))
       {
           JOptionPane.showMessageDialog(rootPane, "Please set the month of Date Approved field!", "Message",JOptionPane.ERROR_MESSAGE,null);
       }

       else if(day.equals(fill))
       {
           JOptionPane.showMessageDialog(rootPane, "Please set the date of Date Approved field!", "Message",JOptionPane.ERROR_MESSAGE,null);
       }
       else if(year.equals(fill))
       {
           JOptionPane.showMessageDialog(rootPane, "Please set the year of Date Approved field!", "Message",JOptionPane.ERROR_MESSAGE,null);
       }
       else if(area.equals(fill))
       {
           JOptionPane.showMessageDialog(rootPane, "Please fill area!", "Message",JOptionPane.ERROR_MESSAGE,null);
       }
       else if(allotment.equals(fill))
       {
           JOptionPane.showMessageDialog(rootPane, "Please fill allotment!", "Message",JOptionPane.ERROR_MESSAGE,null);
       }
       else if(activities.equals(fill))
       {
           JOptionPane.showMessageDialog(rootPane, "Please fill activities/roles!", "Message",JOptionPane.ERROR_MESSAGE,null);
       }
       else if(status.equals(fill))
       {
           JOptionPane.showMessageDialog(rootPane, "Please fill status!", "Message",JOptionPane.ERROR_MESSAGE,null);
       }

       else{

        try{

        st = con.createStatement();

        String query =  "insert into moa_suc values('"+moa_id+"','"+region+"','"+holder+"','"+brgy+"','"+municipality+"','"+province+"','"+president+"','"+month+"','"+day+"','"+year+"','"+area+"','"+allotment+"','"+activities+"','"+status+"')";

        st.executeUpdate(query);

        txt_id.setText("");
        cmb_region.setSelectedItem(0);
        txt_holder.setText("");
        txt_brgy.setText("");
        txt_municipality.setText("");
        txt_province.setText("");
        txt_president.setText("");
        cmb_month.setSelectedItem(0);
        cmb_day.setSelectedItem(0);
        txt_year.setText("");
        txt_area.setText("");
        txt_allotment.setText("");
        txt_activities.setText("");
        txt_status.setText("");

        JOptionPane.showMessageDialog(rootPane, "Successfully added to the record!", "Message",JOptionPane.INFORMATION_MESSAGE,null);
        this.dispose();

    }
    catch(SQLException err){

        System.out.println(err.toString());   
    }

     }

    }
    else
    {
        JOptionPane.showMessageDialog(rootPane, "Sorry! No data added in the record!", "Message",JOptionPane.INFORMATION_MESSAGE,null);
    }

}

Answer 1

由于要向其中添加新记录的JFrame仍然打开，您可以使用SUC_Forms中的一个方法，在该方法中将新记录作为参数传递。要做到这一点，您必须在add_suc中获得对SUC_Forms的引用。例如，在打开此框架时，可以将此引用传递给add_suc的构造函数。然后可以调用该方法来使用对suc_forms的引用添加记录。

您的构造函数将如下所示：

add_suc(SUC_Forms parent)
{}

并在SUC_Forms中创建如下方法：

public void addRecord(-here you pass the required parameters-)
{}

parent.addRecord(-parameters-);