logon.java

Jbuilder编写的纱线制衣厂的仓库管理系统（学习java时做的一个系统）源码

package yarn;

import java.awt.BorderLayout;

import javax.swing.JFrame;
import com.borland.jbcl.layout.XYLayout;
import com.borland.jbcl.layout.*;
import javax.swing.JButton;
import javax.swing.JToggleButton;
import javax.swing.JTextField;
import javax.swing.JLabel;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.Toolkit;
import java.sql.ResultSet;
import java.awt.Dimension;
import javax.swing.JPasswordField;
import javax.swing.JOptionPane;
import javax.swing.JPanel;
import javax.swing.UIManager;

/**
 * <p>Title: </p>
 *
 * <p>Description: </p>
 *
 * <p>Copyright: Copyright (c) 2006</p>
 *
 * <p>Company: </p>
 *
 * @author not attributable
 * @version 1.0
 */
public class LogOn extends JFrame {
    static String EID = null;
    JButton jButton1 = new JButton();
    JButton jButton2 = new JButton();
    JTextField jTextField1 = new JTextField();
    JPasswordField jPasswordField1 = new JPasswordField();
    JLabel jLabel1 = new JLabel();
    JLabel jLabel2 = new JLabel();
    XYLayout xYLayout2 = new XYLayout();
    public LogOn() {
        try {
            jbInit();
        } catch (Exception exception) {
            exception.printStackTrace();
        }
    }

    private void jbInit() throws Exception {
        getContentPane().setLayout(xYLayout2);
        jButton2.setText("取消");
        jLabel1.setText("用户名");
        jLabel2.setText("密码");
        jButton1.setText("确定");
        jButton1.addActionListener(new LogOn_jButton1_actionAdapter(this));
        xYLayout2.setWidth(640);
        xYLayout2.setHeight(480);
        this.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        this.getContentPane().add(jLabel1, new XYConstraints(243, 168, 40, -1));
        this.getContentPane().add(jTextField1,
                                  new XYConstraints(304, 164, 120, 24));
        this.getContentPane().add(jButton2, new XYConstraints(340, 289, 84, 26));
        this.getContentPane().add(jButton1, new XYConstraints(236, 289, 84, 26));
        this.getContentPane().add(jPasswordField1,
                                  new XYConstraints(304, 226, 120, 25));
        this.getContentPane().add(jLabel2, new XYConstraints(243, 231, 29, -1));
    }

    public static void main(String[] args) {
        try {
            UIManager.setLookAndFeel(UIManager.
                                     getSystemLookAndFeelClassName());
        } catch (Exception exception) {
            exception.printStackTrace();
        }
        LogOn logon = new LogOn();
        logon.setSize(new Dimension(640, 480));
        logon.setVisible(true);
    }

    public void jButton1_actionPerformed(ActionEvent e)  {
        //获取用户框和密码框数据
//        JOptionPane.showMessageDialog(this, "用户名或密码错误", "错误",
//                                                 JOptionPane.ERROR_MESSAGE);
        String acc = jTextField1.getText();
        String pass = new String(jPasswordField1.getPassword());
        if(!acc.equals("")&&!pass.equals(""))
        {
            try {
                JDBCFile jf = new JDBCFile();
                ResultSet rs1 = jf.executeQuery(
                        "select Password from Accounts where Account = '" + acc +
                        "'");

                if(rs1.next())
                {
                    if (rs1.getString("Password").equals(String.valueOf(pass.hashCode()))) {
                        rs1 = jf.executeQuery(
                                "select Elimit,EID from Accounts where Account = '" + acc +
                                "'");
                        rs1.next();
                        if (rs1.getString("Elimit").equals("gu")) {
                            this.dispose();
                            jf = new JDBCFile("gu", "");
                            JFrame jframe = new YarnSystemFrame(jf);
                            // Center the window
                            Dimension screenSize = Toolkit.getDefaultToolkit().
                                                   getScreenSize();
                            Dimension frameSize = jframe.getSize();
                            if (frameSize.height > screenSize.height) {
                                frameSize.height = screenSize.height;
                            }
                            if (frameSize.width > screenSize.width) {
                                frameSize.width = screenSize.width;
                            }
                            jframe.setLocation((screenSize.width -
                                                frameSize.width) / 2,
                                               (screenSize.height -
                                                frameSize.height) / 2);
                            jframe.setVisible(true);

                        } else if (rs1.getString("Elimit").equals("sa")) {
                            EID = rs1.getString("EID");
                            this.dispose();
                            jf = new JDBCFile("sa", "12");
                            JFrame jframe = new YarnSystemFrame(jf);
                            // Center the window
                            Dimension screenSize = Toolkit.getDefaultToolkit().
                                                   getScreenSize();
                            Dimension frameSize = jframe.getSize();
                            if (frameSize.height > screenSize.height) {
                                frameSize.height = screenSize.height;
                            }
                            if (frameSize.width > screenSize.width) {
                                frameSize.width = screenSize.width;
                            }
                            jframe.setLocation((screenSize.width -
                                                frameSize.width) / 2,
                                               (screenSize.height -
                                                frameSize.height) / 2);
                            jframe.setVisible(true);

                        } else if (rs1.getString("Elimit").equals("ma")) {
                            jf.close();
                            jf = new JDBCFile("ma", "");
                            this.dispose();
                            JFrame jframe = new YarnSystemFrame(jf);
                            // Center the window
                            Dimension screenSize = Toolkit.getDefaultToolkit().
                                                   getScreenSize();
                            Dimension frameSize = jframe.getSize();
                            if (frameSize.height > screenSize.height) {
                                frameSize.height = screenSize.height;
                            }
                            if (frameSize.width > screenSize.width) {
                                frameSize.width = screenSize.width;
                            }
                            jframe.setLocation((screenSize.width -
                                                frameSize.width) / 2,
                                               (screenSize.height -
                                                frameSize.height) / 2
                                    );
                            jframe.setVisible(true);
                        }
                    }
                    else
                    {
                        JOptionPane.showMessageDialog(this, "密码错误", "错误",
                                                  JOptionPane.ERROR_MESSAGE);
                    }
                }
                else{
                    JOptionPane.showMessageDialog(this, "用户名或密码错误", "错误",
                                                  JOptionPane.ERROR_MESSAGE);
                }
            }
            catch (Exception ex)
            {
                ex.printStackTrace();
                JOptionPane.showMessageDialog(this, "用户名或密码错误", "错误",
                                                  JOptionPane.ERROR_MESSAGE);
            }
        }
        else
            JOptionPane.showMessageDialog(this, "用户名和密码不能空", "错误",
                                                  JOptionPane.ERROR_MESSAGE);
    }

}


class LogOn_jButton1_actionAdapter implements ActionListener {
    private LogOn adaptee;
    LogOn_jButton1_actionAdapter(LogOn adaptee) {
        this.adaptee = adaptee;
    }

    public void actionPerformed(ActionEvent e) {
        adaptee.jButton1_actionPerformed(e);
    }
}