写一个java的swing程序，配置教师端的 ip 和端口信息，输入 学生学号和姓名，请求点名，将学生信息发送给教师端，发送成功后，收到教师 端发送来的确认消息，然后点名结束，关闭系统

好的，我了解您的要求了。以下是一个简单的Java Swing程序，用于配置教师端的IP和端口信息，输入学生学号和姓名，请求点名并将学生信息发送给教师端，接收教师端发送的确认消息并关闭系统：

import java.awt.*;
import java.awt.event.*;
import java.io.*;
import java.net.*;
import javax.swing.*;

public class RollCallSystem extends JFrame implements ActionListener {
    private JTextField tfStudentID, tfName, tfIP, tfPort;
    private JButton btnRollCall;
    private JTextArea taMessage;
    private Socket socket;
    private BufferedReader in;
    private PrintWriter out;

    public RollCallSystem() {
        setTitle("点名系统");
        setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        setSize(500, 400);
        setLocationRelativeTo(null);

        JPanel panel = new JPanel(new GridLayout(5, 2, 10, 10));
        panel.setBorder(BorderFactory.createEmptyBorder(20, 20, 20, 20));
        panel.add(new JLabel("学号："));
        tfStudentID = new JTextField();
        panel.add(tfStudentID);
        panel.add(new JLabel("姓名："));
        tfName = new JTextField();
        panel.add(tfName);
        panel.add(new JLabel("教师端IP："));
        tfIP = new JTextField("127.0.0.1");
        panel.add(tfIP);
        panel.add(new JLabel("教师端端口："));
        tfPort = new JTextField("8888");
        panel.add(tfPort);
        panel.add(new JLabel());
        btnRollCall = new JButton("点名");
        btnRollCall.addActionListener(this);
        panel.add(btnRollCall);

        taMessage = new JTextArea();
        taMessage.setEditable(false);
        JScrollPane scrollPane = new JScrollPane(taMessage);

        Container container = getContentPane();
        container.add(panel, BorderLayout.NORTH);
        container.add(scrollPane, BorderLayout.CENTER);
    }

    public void actionPerformed(ActionEvent e) {
        if (e.getSource() == btnRollCall) {
            String studentID = tfStudentID.getText();
            String name = tfName.getText();
            String ip = tfIP.getText();
            int port = Integer.parseInt(tfPort.getText());
            try {
                socket = new Socket(ip, port);
                in = new BufferedReader(new InputStreamReader(socket.getInputStream()));
                out = new PrintWriter(socket.getOutputStream(), true);
                out.println(studentID + "," + name);
                taMessage.append("已发送点名请求\n");
                String response = in.readLine();
                taMessage.append("收到教师端确认消息：" + response + "\n");
                socket.close();
                in.close();
                out.close();
                btnRollCall.setEnabled(false);
            } catch (IOException ex) {
                taMessage.append("连接教师端失败\n");
            }
        }
    }

    public static void main(String[] args) {
        RollCallSystem frame = new RollCallSystem();
        frame.setVisible(true);
    }
}

这个程序使用了Java的Socket类来连接教师端，发送学生信息并接收确认消息。当用户点击“点名”按钮时，程序会尝试连接教师端，发送学生信息，接收确认消息，并关闭连接。如果连接失败，程序会提示用户连接失败。