我只想单击一次JTable(JDialog的一部分:CustomerListDialog)行后打开一个JDialog(CustomerUpdateDialog),但是要单击两次才能打开CustomerUpdateDialog。
这是JTable的代码:
public class CustomerListDialog extends JDialog {
private void initComponents(ArrayList<Customer> customers) {
...
tbl_Settings.addMouseListener(new MouseListener() {
@Override
public void mouseClicked(MouseEvent e) {
try {
SimpleDateFormat format = new SimpleDateFormat("MMM dd yyyy");
Date date = format.parse (tbl_Settings.getValueAt(tbl_Settings.getSelectedRow(), 8).toString());
LocalDate joinDate = Instant.ofEpochMilli(date.getTime()).atZone(ZoneId.systemDefault()).toLocalDate();
Customer customer = new Customer.Builder(Validator.Id(tbl_Settings.getValueAt(tbl_Settings.getSelectedRow(), 0).toString()),
tbl_Settings.getValueAt(tbl_Settings.getSelectedRow(), 1).toString(),
tbl_Settings.getValueAt(tbl_Settings.getSelectedRow(), 2).toString(),
tbl_Settings.getValueAt(tbl_Settings.getSelectedRow(), 6).toString()) //
.streetName(tbl_Settings.getValueAt(tbl_Settings.getSelectedRow(), 3).toString()) //
.city(tbl_Settings.getValueAt(tbl_Settings.getSelectedRow(), 4).toString()) //
.postalCode(tbl_Settings.getValueAt(tbl_Settings.getSelectedRow(), 5).toString()) //
.emailAddress(Validator.Email(tbl_Settings.getValueAt(tbl_Settings.getSelectedRow(), 7).toString()))
.joinDate(joinDate)//
.build();
System.out.println(customer.toString());
CustomerUpdateDialog customerUpdateDialog = new CustomerUpdateDialog(customer);
customerUpdateDialog.setDefaultCloseOperation(CustomerUpdateDialog.DISPOSE_ON_CLOSE);
customerUpdateDialog.setVisible(true);
}
catch (ApplicationException | ParseException e1) {
System.out.println(e1.getMessage());
}
}
@Override
public void mousePressed(MouseEvent e) {
// TODO Auto-generated method stub
}
@Override
public void mouseReleased(MouseEvent e) {
// TODO Auto-generated method stub
}
@Override
public void mouseEntered(MouseEvent e) {
// TODO Auto-generated method stub
}
@Override
public void mouseExited(MouseEvent e) {
// TODO Auto-generated method stub
}
});
}
private JTable createTable(ArrayList<Customer> customers) {
String[] columnNames = "Customer ID,First Name,Last Name,Street Name,City,Postal Code,Phone Number,Email Address,Join Date".split(",");
int rows = customers.size();
int cols = columnNames.length;
String[][] data = new String[rows][cols];
for(Customer customer : customers) {
int i = customers.indexOf(customer);
for(int j=0; j<cols; j++) {
String cellData = null;
switch (j) {
case 0:
cellData = String.valueOf(customer.getId());
break;
case 1:
cellData = customer.getFirstName();
break;
case 2:
cellData = customer.getLastName();
break;
case 3:
cellData = customer.getStreetName();
break;
case 4:
cellData = customer.getCity();
break;
case 5:
cellData = customer.getPostalCode();
break;
case 6:
cellData = customer.getPhoneNumber();
break;
case 7:
cellData = customer.getEmailAddress();
break;
case 8:
cellData = customer.getJoinDateString();
}
data[i][j] = cellData;
}
}
JTable table = new JTable(data, columnNames);
return table;
}
public CustomerListDialog(ArrayList<Customer> customers) {
setBounds(100, 100, 1000, 500);
initComponents(customers);
}
}
这是将JTable对话框添加到主菜单的代码:
JMenuItem mntmCustomersList = new JMenuItem("List");
mnCustomers.add(mntmCustomersList);
mntmCustomersList.setHorizontalAlignment(SwingConstants.LEFT);
mntmCustomersList.setContentAreaFilled(false);
mntmCustomersList.addActionListener(new ActionListener() {
@Override
public void actionPerformed(ActionEvent e) {
CustomerListDialog dialog = new CustomerListDialog(customerList);
dialog.setDefaultCloseOperation(JDialog.DISPOSE_ON_CLOSE);
dialog.setVisible(true);
}
});
客户数据示例列表:
Customer [id=1739, firstName=Kaitlin, lastName=Oneil, streetName=P.O. Box 329, 9608 Tortor Road, city=Diegem, postalCode=64447, phoneNumber=834-890-3976, [email protected], joinDate=2014-04-12]
Customer [id=2210, firstName=Octavius, lastName=Joseph, streetName=Ap #342-9819 Quis St., city=San Leucio del Sannio, postalCode=55477-429, phoneNumber=671-872-7563, [email protected], joinDate=2018-06-18]
为什么我需要单击两次以打开另一个对话框?
谢谢。
*更新*
我已根据@AndrewThompson的注释和@ Lunatic0的回答将MouseListener事件处理程序更改为ListSelectionListener,但仍得到相同的结果。
我发现我单击了表,然后可以单击计算机上的任何其他应用程序,然后将显示对话框。
您可以测试此代码段并适应您的自定义对话框情况。
基本上,您只需要创建侦听器,然后通过使用将其设置为表getSelectionModel().addListSelectionListener(listener)
import javax.swing.*;
import javax.swing.event.ListSelectionEvent;
import javax.swing.event.ListSelectionListener;
public class TableExample {
JFrame f;
TableExample() {
f = new JFrame();
String data[][] = { { "101", "Amit", "670000" }, { "102", "Jai", "780000" }, { "101", "Sachin", "700000" } };
String column[] = { "ID", "NAME", "SALARY" };
JTable jt = new JTable(data, column);
jt.setBounds(30, 40, 200, 300);
JScrollPane sp = new JScrollPane(jt);
f.add(sp);
f.setSize(300, 400);
f.setVisible(true);
ListSelectionListener listener = new ListSelectionListener() {
@Override
public void valueChanged(ListSelectionEvent e) {
JOptionPane.showInputDialog("Hello");
System.out.println(jt.getValueAt(jt.getSelectedRow(), 0).toString());
}
};
jt.getSelectionModel().addListSelectionListener(listener);
}
public static void main(String[] args) {
new TableExample();
}
}