updatestudent.java

自己用java编写的基于B/S的在线考试系统

import java.awt.FlowLayout;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.event.WindowAdapter;
import java.awt.event.WindowEvent;

import javax.swing.ButtonGroup;
import javax.swing.JButton;
import javax.swing.JDialog;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JOptionPane;
import javax.swing.JPanel;
import javax.swing.JRadioButton;
import javax.swing.JScrollPane;
import javax.swing.JTable;
import javax.swing.JTextField;


public class UpdateStudent extends JDialog implements ActionListener {
	JTextField id, name, age, address;

	JLabel id1, name1, sex1, age1, address1, empty;

	JRadioButton sexB, sexG;

	JButton yes, no,find;

	ButtonGroup group;

	JPanel p1, p2, p3, p4, p5, p6, p7, p8;

	Student student = null;

	UpdateStudent(JFrame f, String s, boolean b) {
		super(f, s, b);
		setLayout(new FlowLayout());
		p1 = new JPanel();
		p2 = new JPanel();
		p3 = new JPanel();
		p4 = new JPanel();
		p5 = new JPanel();
		p6 = new JPanel();
		id = new JTextField(10);
		name = new JTextField(10);
		group = new ButtonGroup();
		sexB = new JRadioButton("男", true);
		sexG = new JRadioButton("女");
		age = new JTextField(10);
		address = new JTextField(10);
		id1 = new JLabel("学号:");
		name1 = new JLabel("姓名:");
		sex1 = new JLabel("性别:     ");
		age1 = new JLabel("年龄:");
		address1 = new JLabel("住址:");
		empty = new JLabel("   ");
		yes = new JButton("修改");
		no = new JButton("取消");
		find = new JButton("获得信息");
		yes.addActionListener(this);
		no.addActionListener(this);
		find.addActionListener(this);
		group.add(sexB);
		group.add(sexG);
		p1.add(id1);
		p1.add(id);
		p2.add(name1);
		p2.add(name);
		p3.add(sex1);
		p3.add(sexB);
		p3.add(empty);
		p3.add(sexG);
		p4.add(age1);
		p4.add(age);
		p5.add(address1);
		p5.add(address);
		p6.add(yes);
		p6.add(no);
		add(p1);
		add(find);
		add(p2);
		add(p3);
		add(p4);
		add(p5);
		add(p6);
		setSize(230, 301);
		setResizable(false);
		setLocation(250, 180);
		this.addWindowListener(new WindowAdapter() {
			public void windowClosing(WindowEvent e) {
				System.exit(0);
			}
		});
		validate();
	}

	public Student getMessage() {
		return student;
	}

	public void actionPerformed(ActionEvent e) {
		if (e.getSource() == yes) {
			student = new Student();
			boolean flag = false;
			boolean flag1 = true;
			String message = age.getText();
			char[] atmp = message.toCharArray();
			for (int i = 0; i < atmp.length; i++) {
				if ('1' <= atmp[i] && atmp[i] <= '9') {
					flag = true;
				}
			}
			if (flag1) {
				if (flag) {
					//student.setId(id.getText());
					student.setName(name.getText());
					student.setSex("男");
					//student.setAge(Integer.parseInt(age.getText()));
					//student.setAddress(address.getText());
					id.setText(null);
					this.setVisible(false);
				} else {
					JOptionPane.showMessageDialog(this, "年龄是无效字符！！", "消息",
							JOptionPane.WARNING_MESSAGE);
					id.setText(null);
				}

			} else {
				JOptionPane.showMessageDialog(this, "请填写完整信息", "消息",
						JOptionPane.WARNING_MESSAGE);
				id.setText(null);
			}
		}
		if (e.getSource() == no) {
			student = null;
			this.setVisible(false);
		}
		if(e.getSource()==find){
			String idTmp = id.getText();
			Student student = new Student();
			student = new StudentManager().queryStudent(Integer.parseInt(idTmp));
			this.id.setText(String.valueOf(student.getId()));
			this.name.setText(student.getName());
			
				
			
		}
	}
}