我有一个JFrame，其中包含一个按钮，该按钮应调用另一个类，在该类中打开另一个JFrame并向其添加许多元素。但是，由于某种原因，这不起作用，只是打开JFrame时没有任何元素。我确定这是一个非常简单的修复，但我太愚蠢了，无法弄明白。代码也非常混乱，编写得很糟糕，但我稍后会对所有这些进行排序（我知道我在其中使用的是静态的）。
以下是包含按钮和操作列表器的类中的代码：
public static void server（）{
JButton server = new JButton();
server.setText("Server");
server.addActionListener(new ActionListener() {
@Override
public void actionPerformed(ActionEvent e) {
String name = nameChoice;
String ip = ipChoice;
String port = portChoice;
try {
server2(port);
} catch (IOException e1) {
e1.printStackTrace();
}
}
});
panel.add(server);
}
public static void server2(String port) throws IOException {
gui.frame();
sockets.serverSetup(port);
while (true) {
sockets.receiveMsg();
}
}
这是它所调用的类：
package com.company;
import javax.swing.*;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.event.WindowEvent;
import java.io.IOException;
import java.util.Vector;
public class chatWindowScreen {
static JFrame frame = new JFrame();
static JPanel panel = new JPanel();
static JTextArea sent;
static JTextArea received;
static JTextArea newMsg;
static JButton sendButton;
public static String msg;
static network sockets = new network();
public static boolean close = false;
public void frame() throws IOException {
System.out.println("GUI opened");
frame.setTitle("Messaging Application");
frame.setSize(500, 500);
frame.setDefaultCloseOperation(JFrame.DISPOSE_ON_CLOSE);
sentMsg();
receivedMsg();
msgBox();
sendBtn();
save();
frame.add(panel);
frame.setVisible(true);
}
public static void sentMsg() {
sent = new JTextArea(15, 20);
sent.setText("Sent" + "\n");
sent.setLineWrap(true);
sent.setEditable(false);
JScrollPane pane = new JScrollPane(sent, JScrollPane.VERTICAL_SCROLLBAR_AS_NEEDED, JScrollPane.HORIZONTAL_SCROLLBAR_AS_NEEDED);
panel.add(pane);
}
public static void receivedMsg() {
received = new JTextArea(15, 20);
received.setText("Received" + "\n");
received.setEditable(false);
received.setLineWrap(true);
JScrollPane pane1 = new JScrollPane(received, JScrollPane.VERTICAL_SCROLLBAR_AS_NEEDED, JScrollPane.HORIZONTAL_SCROLLBAR_AS_NEEDED);
panel.add(pane1);
}
public static void msgBox() {
newMsg = new JTextArea(1, 15);
newMsg.setText("");
newMsg.setLineWrap(true);
JScrollPane pane2 = new JScrollPane(newMsg, JScrollPane.VERTICAL_SCROLLBAR_AS_NEEDED, JScrollPane.HORIZONTAL_SCROLLBAR_AS_NEEDED);
panel.add(pane2);
}
public static void sendBtn() {
sendButton = new JButton();
sendButton.setText("Send!");
sendButton.addActionListener(new ActionListener() {
@Override
public void actionPerformed(ActionEvent e) {
msg = newMsg.getText();
newMsg.setText(null);
try {
sockets.sendMsg(msg);
} catch (IOException e1) {
e1.printStackTrace();
}
msg = null;
}
});
panel.add(sendButton);
}
public static void save(){
JButton save = new JButton();
save.setText("Save Conversation");
save.addActionListener(new ActionListener() {
@Override
public void actionPerformed(ActionEvent e) {
saveToFile save = new saveToFile();
}
});
panel.add(save);
}
}
感谢任何帮助。