Swing中获取文本框的值，是多个，急

Question

是这样的，代码如下，看了代码再说吧
package com.aiflow.SQL;import java.awt.Container;
import java.awt.GridLayout;
import java.awt.Image;
import java.awt.Toolkit;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.io.FileOutputStream;
import java.util.ArrayList;
import java.util.List;import javax.swing.BorderFactory;
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JPanel;
import javax.swing.JScrollPane;
import javax.swing.JTextField;
import javax.swing.SwingConstants;public class zxb extends JFrame implements ActionListener {    private static final long serialVersionUID = 1L;    private Container contentPane;// 整个容器    private JLabel label_VPNUname;// vpn名称
    private JLabel label_VPNUname_x;// vpn名称
    private JLabel label_VPNPhone;// vpn名称    private JTextField textField_VPNUname;    private JPanel jPanel_phone;
    private JButton jbutton_1;    private JScrollPane scroll;    List<String> list = null;    FileOutputStream fos;    public zxb() {
        super();
//        try {
//            UIManager
//                    .setLookAndFeel("org.fife.plaf.Office2003.Office2003LookAndFeel");
//        } catch (Exception e) {
//            e.printStackTrace();
//        }
        initSelf();
        initComponets();
    }    JFrame jf = new JFrame();    private void initSelf() {
        jf.setVisible(true);
        jf.setTitle("配置告警短信的号码");
        jf.setSize(350, 560);
        jf.setLocationRelativeTo(null);//居中
        jf.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);//
        jf.setResizable(true); // 去掉最大化
        contentPane = jf.getContentPane();
        Toolkit tk = Toolkit.getDefaultToolkit();
        Image img = tk.getImage("img/Flow Chart.gif");
        jf.setIconImage(img);    }    public void initComponets() {
        jPanel_phone = new JPanel(); 
        jPanel_phone.setBorder(BorderFactory.createTitledBorder("短信号码配置"));
        GridLayout gridLayout = new GridLayout(0,2);//网格布局，不限制行，2列
        jPanel_phone.setLayout(gridLayout);
        
        label_VPNUname = new JLabel("vpn名称", SwingConstants.CENTER);
        label_VPNPhone = new JLabel("短信号码配置", SwingConstants.CENTER);
        jPanel_phone.add(label_VPNUname);
        jPanel_phone.add(label_VPNPhone);        list = new ArrayList<String>();
        list.add("a");
        list.add("b");
        list.add("c");
        list.add("d");
        list.add("a");
        list.add("b");
        list.add("c");
        list.add("d");
        list.add("a");
        list.add("b");
        list.add("c");
        list.add("d");
        list.add("a");
        list.add("b");
        list.add("c");
        list.add("d");
        list.add("a");
        list.add("b");
        list.add("c");
        list.add("d");        for (int i = 0; i < list.size(); i++) {
            label_VPNUname_x = new JLabel(list.get(i), SwingConstants.CENTER);
            textField_VPNUname = new JTextField();
            jPanel_phone.add(label_VPNUname_x);
            jPanel_phone.add(textField_VPNUname);
            
        }        scroll = new JScrollPane(jPanel_phone);//将需要滚动条的Panel直接当参数传入
        
        JPanel bottom = new JPanel();        jbutton_1 = new JButton("保存退出");
        jbutton_1.setEnabled(true);
        jbutton_1.addActionListener(this);        bottom.add(jbutton_1);
        jPanel_phone.add(bottom);        contentPane.add(scroll);
    }    public void actionPerformed(ActionEvent e) {
        // TODO Auto-generated method stub    }    public static void main(String[] args) {
        // new PhoneFrame();
        java.awt.EventQueue.invokeLater(new Runnable() {
            public void run() {
                new zxb();
            }
        });
    }}我想获取每个textField_VPNUname文本框的值，知道的告诉下，谢了

Answer 1

可以用jpanel_phone.getComponent()来得到容器中的对象
  scroll = new JScrollPane(jPanel_phone);//将需要滚动条的Panel直接当参数传入
    
  JPanel bottom = new JPanel();  jbutton_1 = new JButton("显示在a里输入的值");
  jbutton_1.setEnabled(true);
  jbutton_1.addActionListener(new ActionListener(){
@Override
public void actionPerformed(ActionEvent arg0) {
System.out.println(((JTextField)jPanel_phone.getComponent(3)).getText());
}
  
  });
    bottom.add(jbutton_1);
  jPanel_phone.add(bottom);

Answer 2

jbutton_1的actionlistener增加  jbutton_1.addActionListener(new ActionListener(){ @Override
public void actionPerformed(ActionEvent arg0) {
for(int i=0;i<jPanel_phone.getComponentCount();i++ ){
Object obj=jPanel_phone.getComponent(i);
if(obj instanceof JTextField){
  JOptionPane.showMessageDialog(null, ((JTextField)jPanel_phone.getComponent(i)).getText(),"",JOptionPane.INFORMATION_MESSAGE);
 }
}
}
  
  });