dialoglogin.java

学员信息管理系统

package com.javasme.dialog;

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

import javax.swing.JButton;
import javax.swing.JLabel;
import javax.swing.JPanel;
import javax.swing.JPasswordField;
import javax.swing.JTextField;

import com.javasme.longs.LookAndFeel;
import com.javasme.longs.ObjectClasses;
import com.javasme.util.FormChecked;
import com.javasme.util.LogChecked;

public class DialogLogin extends javax.swing.JDialog {
    /**
     * 
     */
    private static final long serialVersionUID = 4897395454428821627L;

    private JPanel            panelCenter;

    private JButton           buttonExit;

    private JButton           buttonSubmit;

    private JPasswordField    passwordFieldPassword;

    private JLabel            labelPassword;

    private JTextField        textFieldUserName;

    private JLabel            labelUserName;

    private JLabel            labelTitle;

    /**
     * Auto-generated main method to display this JDialog
     */

    public DialogLogin(Frame owner, boolean modal) {
        super(owner, modal);
        initGUI();
        /**
         * 风格设置
         */
        LookAndFeel.UpdateLookAndFeel(this);
        this.getRootPane().setDefaultButton(buttonSubmit);
    }

    private void initGUI() {
        try {
            {
                panelCenter = new JPanel();
                getContentPane().add(panelCenter, BorderLayout.CENTER);
                panelCenter.setPreferredSize(new java.awt.Dimension(245, 147));
                panelCenter.setLayout(null);
                panelCenter.setBackground(new java.awt.Color(236, 233, 216));
                {
                    labelTitle = new JLabel();
                    panelCenter.add(labelTitle);
                    labelTitle.setText("用户登陆");
                    labelTitle.setFont(new java.awt.Font("宋体", 1, 20));
                    labelTitle.setForeground(new java.awt.Color(128, 0, 255));
                    labelTitle.setBounds(70, 7, 84, 35);
                }
                {
                    labelUserName = new JLabel();
                    panelCenter.add(labelUserName);
                    labelUserName.setText("用户名：");
                    labelUserName.setFont(new java.awt.Font("宋体", 0, 12));
                    labelUserName.setBounds(42, 49, 49, 21);
                }
                {
                    textFieldUserName = new JTextField();
                    panelCenter.add(textFieldUserName);
                    textFieldUserName.setBounds(91, 49, 105, 21);
                }
                {
                    labelPassword = new JLabel();
                    panelCenter.add(labelPassword);
                    labelPassword.setText("密　码：");
                    labelPassword.setBounds(42, 77, 49, 21);
                    labelPassword.setFont(new java.awt.Font("宋体", 0, 12));
                }
                {
                    passwordFieldPassword = new JPasswordField();
                    panelCenter.add(passwordFieldPassword);
                    passwordFieldPassword.setBounds(91, 77, 105, 21);
                }
                {
                    buttonSubmit = new JButton();
                    panelCenter.add(buttonSubmit);
                    buttonSubmit.setText("登录");
                    buttonSubmit.setBounds(49, 112, 63, 28);
                    buttonSubmit.setFont(new java.awt.Font("宋体", 0, 12));
                    buttonSubmit.addActionListener(new ActionListener() {
                        public void actionPerformed(ActionEvent evt) {
                            buttonSubmitActionPerformed(evt);
                        }
                    });
                }
                {
                    buttonExit = new JButton();
                    panelCenter.add(buttonExit);
                    buttonExit.setText("取消");
                    buttonExit.setBounds(126, 112, 63, 28);
                    buttonExit.setFont(new java.awt.Font("宋体", 0, 12));
                    buttonExit.addActionListener(new ActionListener() {
                        public void actionPerformed(ActionEvent evt) {
                            buttonExitActionPerformed(evt);
                        }
                    });
                }
            }
            setSize(250, 180);
            /*
             * 设置窗口显示居中
             */
            int windowsWidth = Toolkit.getDefaultToolkit().getScreenSize().width;// 获取桌面宽度
            int windowsHeight = Toolkit.getDefaultToolkit().getScreenSize().height;// 获取桌面高度

            int frameWidth = getSize().width;// 获取窗体宽度
            int frameHeight = getSize().height;// 获取窗体高度

            int startX = (windowsWidth - frameWidth) / 2;// 计算窗体显示的初始横坐标
            int startY = (windowsHeight - frameHeight) / 2;// 计算窗体显示的初始纵坐标
            this.setLocation(startX, startY);// 设置窗体显示位置
        } catch (Exception e) {
            e.printStackTrace();
        }
    }

    /**
     * 《登录》按钮事件处理
     * 
     * @param evt
     */
    private void buttonSubmitActionPerformed(ActionEvent evt) {
        login();
    }

    /**
     * 《取消》按钮事件处理
     * 
     * @param evt
     */
    private void buttonExitActionPerformed(ActionEvent evt) {
        this.dispose();
    }

    private void login() {
        String user_Name = this.textFieldUserName.getText().trim();
        if (!FormChecked.mustNotNull("用户名", user_Name)) {
            return;
        }
        if (!FormChecked.charCheck("用户名", user_Name)) {
            return;
        }
        String user_Pass = new String(this.passwordFieldPassword.getPassword());
        if (!FormChecked.mustNotNull("密　码", user_Pass)) {
            return;
        }
        if (!FormChecked.charCheck("密　码", user_Pass)) {
            return;
        }
        if (LogChecked.login(user_Name, user_Pass)) {
            FormChecked.success("用户登录", "登录成功！");
            ObjectClasses.flag = true;
            ObjectClasses.user_Name = user_Name;
            LogChecked.loginChecked();
            this.dispose();
        } else {
            FormChecked.lose("用户登录", "登录失败！用户不存在或密码错误！");
        }
    }
}