createuserdialog.java

Java写的一个学员系统

package cn.st.ui;

import java.awt.BorderLayout;
import java.awt.Frame;
import java.awt.Rectangle;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;

import javax.swing.JButton;
import javax.swing.JDialog;
import javax.swing.JLabel;
import javax.swing.JOptionPane;
import javax.swing.JPanel;
import javax.swing.JPasswordField;
import javax.swing.JTextField;
import javax.swing.WindowConstants;

import cn.st.data.Process;
import cn.st.data.UserBean;

public class CreateUserDialog extends JDialog implements ActionListener {

	private static final long serialVersionUID = 1L;

	private JPanel jContentPane = null;

	private JPanel jPanel = null;

	private JLabel jLuserName = null;

	private JTextField jTuserName = null;

	private JButton jBenter = null;

	private JButton jBcancle = null;

	private JLabel jLpassWord = null;

	private JPasswordField jPasswordField = null;

	private JLabel jLpassword2 = null;

	private JPasswordField jPasswordField2 = null;

	private final String ENTER = "enter";

	private final String CANCLE = "cancel";

	private Process process = new Process();  //  @jve:decl-index=0:

	/**
	 * @param owner
	 */
	public CreateUserDialog(Frame owner) {
		super(owner);
		initialize();
	}

	/**
	 * This method initializes this
	 *
	 * @return void
	 */
	private void initialize() {
		this.setSize(300, 200);
		this.setDefaultCloseOperation(WindowConstants.DISPOSE_ON_CLOSE);
		this.setModal(true);
		this.setContentPane(getJContentPane());
	}

	/**
	 * This method initializes jContentPane
	 *
	 * @return javax.swing.JPanel
	 */
	private JPanel getJContentPane() {
		if (jContentPane == null) {
			jContentPane = new JPanel();
			jContentPane.setLayout(new BorderLayout());
			jContentPane.add(getJPanel(), BorderLayout.CENTER);
		}
		return jContentPane;
	}

	/**
	 * This method initializes jPanel
	 *
	 * @return javax.swing.JPanel
	 */
	private JPanel getJPanel() {
		if (jPanel == null) {
			jLpassword2 = new JLabel();
			jLpassword2.setBounds(new Rectangle(10, 101, 93, 28));
			jLpassword2.setText("确认密码:");
			jLpassWord = new JLabel();
			jLpassWord.setBounds(new Rectangle(10, 58, 93, 28));
			jLpassWord.setText("密码:");
			jLuserName = new JLabel();
			jLuserName.setBounds(new Rectangle(10, 15, 92, 28));
			jLuserName.setText("用户名:");
			jPanel = new JPanel();
			jPanel.setLayout(null);
			jPanel.add(jLuserName, null);
			jPanel.add(getJTuserName(), null);
			jPanel.add(getJBenter(), null);
			jPanel.add(getJBcancle(), null);
			jPanel.add(jLpassWord, null);
			jPanel.add(getJPasswordField(), null);
			jPanel.add(jLpassword2, null);
			jPanel.add(getJPasswordField2(), null);
		}
		return jPanel;
	}

	/**
	 * This method initializes jTuserName
	 *
	 * @return javax.swing.JTextField
	 */
	private JTextField getJTuserName() {
		if (jTuserName == null) {
			jTuserName = new JTextField();
			jTuserName.setBounds(new Rectangle(115, 15, 157, 28));
		}
		return jTuserName;
	}

	/**
	 * This method initializes jBenter
	 *
	 * @return javax.swing.JButton
	 */
	private JButton getJBenter() {
		if (jBenter == null) {
			jBenter = new JButton();
			jBenter.setBounds(new Rectangle(59, 134, 71, 31));
			jBenter.setText("确定");
			jBenter.setActionCommand(ENTER);
			jBenter.addActionListener(this);
		}
		return jBenter;
	}

	/**
	 * This method initializes jBcancle
	 *
	 * @return javax.swing.JButton
	 */
	private JButton getJBcancle() {
		if (jBcancle == null) {
			jBcancle = new JButton();
			jBcancle.setBounds(new Rectangle(159, 134, 71, 31));
			jBcancle.setText("取消");
			jBcancle.setActionCommand(CANCLE);
			jBcancle.addActionListener(this);
		}
		return jBcancle;
	}

	/**
	 * This method initializes jPasswordField
	 *
	 * @return javax.swing.JPasswordField
	 */
	private JPasswordField getJPasswordField() {
		if (jPasswordField == null) {
			jPasswordField = new JPasswordField();
			jPasswordField.setBounds(new Rectangle(115, 58, 157, 28));
		}
		return jPasswordField;
	}

	/**
	 * This method initializes jPasswordField2
	 *
	 * @return javax.swing.JPasswordField
	 */
	private JPasswordField getJPasswordField2() {
		if (jPasswordField2 == null) {
			jPasswordField2 = new JPasswordField();
			jPasswordField2.setBounds(new Rectangle(115, 102, 157, 27));
		}
		return jPasswordField2;
	}

	public static void main(String[] args) {
		CreateUserDialog cud = new CreateUserDialog(null);
		cud.setVisible(true);
	}

	public void actionPerformed(ActionEvent arg0) {
		String command = arg0.getActionCommand();
		if (command.trim().equals(ENTER.trim())) {
			String pw1 = new String(this.getJPasswordField().getPassword());
			String pw2 = new String(this.getJPasswordField2().getPassword());
			if(!pw1.trim().equals(pw2.trim())) {
				JOptionPane.showMessageDialog(this,
						"两次密码不一致，请重新输入",
						"密码错误",
						JOptionPane.INFORMATION_MESSAGE);
			} else {
				UserBean ub = this.process.getUserByName(this.getJTuserName().getText());
				if(ub != null) {
					JOptionPane.showMessageDialog(this,
							"用户已经存在，请重新输入",
							"用户已经存在",
							JOptionPane.INFORMATION_MESSAGE);
				} else {
					ub = new UserBean();
					ub.setUserName(this.getJTuserName().getText());
					ub.setPassword(new String(this.getJPasswordField().getPassword()));

					this.process.saveUserBean(ub);

					this.dispose();
				}
			}
		} else if (command.trim().equals(CANCLE.trim())) {
			this.dispose();
		}
	}
}