loginjdialog.java.svn-base

Store Manager

/*
 * LoginJFrame.java 
 *
 * Created on 2007年5月19日, 下午7:21
 */

package com.studio009.store.ui;

import com.studio009.store.StoreApp;
import com.studio009.store.entity.Operator;
import javax.persistence.NoResultException;
import javax.persistence.NonUniqueResultException;
import javax.persistence.Query;
import javax.swing.JOptionPane;
import oracle.toplink.essentials.exceptions.DatabaseException;

/**
 * 验证客户的登录对话框
 * @see StoreApp
 * @author  wangs
 */
public class LoginJDialog extends javax.swing.JDialog {
    
    /** Creates new form LoginJFrame
     * @param parent 父窗口
     * @param modal 模式
     * @param username 登录时默认的用户名
     *
     */
    public LoginJDialog(java.awt.Frame parent, String username, Boolean modal) {
        super(parent, modal);
        
        try {
            initComponents();
            
            //set username
            usernameField.setText(username);
            
            //set default button
            this.getRootPane().setDefaultButton(loginButton);
            
            this.setLocationRelativeTo(parent);
        }catch (DatabaseException de){
            JOptionPane.showMessageDialog(this, "数据库错误!", "错误", JOptionPane.ERROR_MESSAGE);
            StoreApp.stopApp();
        }
    }
    
    /** This method is called from within the constructor to
     * initialize the form.
     * WARNING: Do NOT modify this code. The content of this method is
     * always regenerated by the Form Editor.
     */
    // <editor-fold defaultstate="collapsed" desc=" Generated Code ">//GEN-BEGIN:initComponents
    private void initComponents() {

        em = StoreApp.getEntityManagerFactory().createEntityManager();
        jPanel1 = new javax.swing.JPanel();
        jLabel1 = new javax.swing.JLabel();
        jLabel2 = new javax.swing.JLabel();
        jLabel3 = new javax.swing.JLabel();
        usernameField = new javax.swing.JTextField();
        passwordField = new javax.swing.JPasswordField();
        loginButton = new javax.swing.JButton();
        cancelButton = new javax.swing.JButton();

        setDefaultCloseOperation(javax.swing.WindowConstants.DISPOSE_ON_CLOSE);
        setTitle("\u767b\u5f55");

        jPanel1.setBorder(javax.swing.BorderFactory.createEtchedBorder());

        jLabel1.setFont(new java.awt.Font("Dialog", 1, 24));
        jLabel1.setHorizontalAlignment(javax.swing.SwingConstants.CENTER);
        java.util.ResourceBundle bundle = java.util.ResourceBundle.getBundle("com/studio009/store/language"); // NOI18N
        jLabel1.setText(bundle.getString("Store_Manager_System_Title")); // NOI18N

        jLabel2.setFont(new java.awt.Font("Dialog", 1, 14));
        jLabel2.setText(bundle.getString("Username")); // NOI18N

        jLabel3.setFont(new java.awt.Font("Dialog", 1, 14));
        jLabel3.setText(bundle.getString("Password")); // NOI18N

        usernameField.setFont(new java.awt.Font("Dialog", 0, 14));

        passwordField.setFont(new java.awt.Font("Dialog", 0, 14));

        loginButton.setFont(new java.awt.Font("Dialog", 1, 14));
        loginButton.setText(bundle.getString("Login")); // NOI18N
        loginButton.addActionListener(new java.awt.event.ActionListener() {
            public void actionPerformed(java.awt.event.ActionEvent evt) {
                loginButtonActionPerformed(evt);
            }
        });

        cancelButton.setFont(new java.awt.Font("Dialog", 1, 14));
        cancelButton.setText(bundle.getString("Cancel")); // NOI18N
        cancelButton.addActionListener(new java.awt.event.ActionListener() {
            public void actionPerformed(java.awt.event.ActionEvent evt) {
                cancelButtonActionPerformed(evt);
            }
        });

        javax.swing.GroupLayout jPanel1Layout = new javax.swing.GroupLayout(jPanel1);
        jPanel1.setLayout(jPanel1Layout);
        jPanel1Layout.setHorizontalGroup(
            jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
            .addGroup(jPanel1Layout.createSequentialGroup()
                .addGroup(jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
                    .addGroup(jPanel1Layout.createSequentialGroup()
                        .addGap(49, 49, 49)
                        .addGroup(jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
                            .addGroup(jPanel1Layout.createSequentialGroup()
                                .addGap(22, 22, 22)
                                .addGroup(jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.TRAILING)
                                    .addComponent(jLabel3)
                                    .addComponent(jLabel2))
                                .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
                                .addGroup(jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING, false)
                                    .addComponent(passwordField)
                                    .addComponent(usernameField, javax.swing.GroupLayout.PREFERRED_SIZE, 155, javax.swing.GroupLayout.PREFERRED_SIZE)))
                            .addGroup(jPanel1Layout.createSequentialGroup()
                                .addGap(33, 33, 33)
                                .addComponent(loginButton)
                                .addGap(62, 62, 62)
                                .addComponent(cancelButton))))
                    .addGroup(jPanel1Layout.createSequentialGroup()
                        .addContainerGap()
                        .addComponent(jLabel1, javax.swing.GroupLayout.DEFAULT_SIZE, 331, Short.MAX_VALUE)))
                .addContainerGap())
        );
        jPanel1Layout.setVerticalGroup(
            jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
            .addGroup(jPanel1Layout.createSequentialGroup()
                .addContainerGap()
                .addComponent(jLabel1, javax.swing.GroupLayout.PREFERRED_SIZE, 33, javax.swing.GroupLayout.PREFERRED_SIZE)
                .addGap(18, 18, 18)
                .addGroup(jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)
                    .addComponent(jLabel2)
                    .addComponent(usernameField, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE))
                .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
                .addGroup(jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)
                    .addComponent(jLabel3)
                    .addComponent(passwordField, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE))
                .addGap(32, 32, 32)
                .addGroup(jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)
                    .addComponent(cancelButton)
                    .addComponent(loginButton))
                .addContainerGap(20, Short.MAX_VALUE))
        );

        javax.swing.GroupLayout layout = new javax.swing.GroupLayout(getContentPane());
        getContentPane().setLayout(layout);
        layout.setHorizontalGroup(
            layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
            .addGroup(javax.swing.GroupLayout.Alignment.TRAILING, layout.createSequentialGroup()
                .addContainerGap()
                .addComponent(jPanel1, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)
                .addContainerGap())
        );
        layout.setVerticalGroup(
            layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
            .addGroup(layout.createSequentialGroup()
                .addContainerGap()
                .addComponent(jPanel1, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)
                .addContainerGap())
        );

        pack();
    }// </editor-fold>//GEN-END:initComponents
    
private void loginButtonActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_loginButtonActionPerformed
    // 在实体管理器里查找用户
    // 如果没有得到实体,说明帐号或密码不正确
    try{
        Query query = em.createQuery("SELECT o FROM Operator o WHERE o.operatorName=:username and o.password=:password");
        query.setParameter("username", usernameField.getText());
        query.setParameter("password", passwordField.getText());
        operator = (Operator) query.getSingleResult();
    } catch (NoResultException nre) {
        JOptionPane.showMessageDialog(this, "你的密码或者帐号不正确!", "错误", JOptionPane.ERROR_MESSAGE);
        return;
    } catch (NonUniqueResultException nure) {
        System.out.print("重复的用户名! ");
        return;
    }
    if (operator != null) {
        this.passwordField.setText("");
        this.dispose();
    }
}//GEN-LAST:event_loginButtonActionPerformed

    private void cancelButtonActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_cancelButtonActionPerformed
        operator = null;
        this.dispose();
}//GEN-LAST:event_cancelButtonActionPerformed

    /**
     * 显示该对话框并返回得到的操作员
     * @return 登录的操作员
     */
    public Operator showDilog() {
        this.setVisible(true);
        return operator;
    }
    
    // Variables declaration - do not modify//GEN-BEGIN:variables
    private javax.swing.JButton cancelButton;
    private javax.persistence.EntityManager em;
    private javax.swing.JLabel jLabel1;
    private javax.swing.JLabel jLabel2;
    private javax.swing.JLabel jLabel3;
    private javax.swing.JPanel jPanel1;
    private javax.swing.JButton loginButton;
    private javax.swing.JPasswordField passwordField;
    private javax.swing.JTextField usernameField;
    // End of variables declaration//GEN-END:variables
    private Operator operator = null;
}