Java实现网上书店管理系统(idea+MySQL+navicat） - ToB企服应用市场:ToB评测及商务社交产业平台

package frame;
import jdbc.ConnectionManager;
import model.Manager;
import javax.swing.*;
import javax.swing.border.EmptyBorder;
import javax.swing.event.DocumentEvent;
import javax.swing.event.DocumentListener;
import javax.swing.text.Document;
import java.awt.*;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.sql.ResultSet;
import java.sql.SQLException;
public class Login extends JFrame {
private JPanel contentPane;
private JTextField jt_user;
private JPasswordField jt_psw;
public static Jrame2 jrame;
private final JPanel panel_3 = new JPanel();
public static void main(String[] args) {
EventQueue.invokeLater(new Runnable() {
public void run() {
try {
Login frame = new Login();
frame.setVisible(true);
} catch (Exception e) {
e.printStackTrace();
}
}
});
}
/**
* Create the frame.
*/
public Login() {
setBackground(new Color(224, 255, 255));
setIconImage(Toolkit.getDefaultToolkit().getImage(Login.class.getResource("/img/线性图书 (1).png")));
setTitle("网上书店管理系统");
setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
setBounds(100, 100, 610, 377);
contentPane = new JPanel();
contentPane.setBackground(SystemColor.menu);
contentPane.setBorder(new EmptyBorder(5, 5, 5, 5));
setContentPane(contentPane);
contentPane.setLayout(null);
JPanel panel = new JPanel();
panel.setBackground(SystemColor.menu);
panel.setBounds(10, 25, 576, 81);
contentPane.add(panel);
panel.setLayout(null);
JLabel lblNewLabel = new JLabel("Welcome to use the System!");
lblNewLabel.setIcon(new ImageIcon(Login.class.getResource("/img/welcome.png")));
lblNewLabel.setBounds(73, 25, 435, 34);
lblNewLabel.setForeground(new Color(0, 0, 0));
lblNewLabel.setFont(new Font("宋体", Font.BOLD, 29));
panel.add(lblNewLabel);
JPanel panel_1 = new JPanel();
panel_1.setBackground(SystemColor.menu);
panel_1.setBounds(10, 116, 576, 60);
contentPane.add(panel_1);
panel_1.setLayout(null);
JLabel lblNewLabel_1 = new JLabel("账号：");
lblNewLabel_1.setBounds(96, 5, 98, 32);
lblNewLabel_1.setIcon(new ImageIcon(Login.class.getResource("/img/账号 (1).png")));
lblNewLabel_1.setFont(new Font("宋体", Font.BOLD, 20));
panel_1.add(lblNewLabel_1);
jt_user = new JTextField();
jt_user.setBounds(199, 6, 281, 30);
jt_user.setFont(new Font("宋体", Font.BOLD, 20));
panel_1.add(jt_user);
jt_user.setColumns(25);
JLabel mess1 = new JLabel("");
mess1.setFont(new Font("宋体", Font.PLAIN, 14));
mess1.setForeground(Color.RED);
mess1.setBounds(199, 38, 125, 24);
panel_1.add(mess1);
JPanel panel_1_1 = new JPanel();
panel_1_1.setBackground(SystemColor.menu);
panel_1_1.setBounds(10, 186, 576, 60);
contentPane.add(panel_1_1);
panel_1_1.setLayout(null);
JLabel lblNewLabel_1_1 = new JLabel("密码：");
lblNewLabel_1_1.setBounds(97, 10, 98, 32);
lblNewLabel_1_1.setIcon(new ImageIcon(Login.class.getResource("/img/密码 (7).png")));
lblNewLabel_1_1.setFont(new Font("宋体", Font.BOLD, 20));
panel_1_1.add(lblNewLabel_1_1);
jt_psw = new JPasswordField();
jt_psw.setBounds(201, 5, 280, 32);
jt_psw.setFont(new Font("宋体", Font.BOLD, 15));
jt_psw.setColumns(25);
panel_1_1.add(jt_psw);
JLabel mess2 = new JLabel("");
mess2.setForeground(Color.RED);
mess2.setFont(new Font("宋体", Font.PLAIN, 14));
mess2.setBounds(201, 36, 125, 24);
panel_1_1.add(mess2);
JPanel panel_2 = new JPanel();
panel_2.setBackground(SystemColor.menu);
panel_2.setBounds(10, 270, 576, 60);
contentPane.add(panel_2);
panel_2.setLayout(null);
JButton jb_reset = new JButton("重置");
jb_reset.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
// 重置输入框
jt_user.setText("");
jt_psw.setText("");
}
});
jb_reset.setIcon(new ImageIcon(Login.class.getResource("/img/重置.png")));
jb_reset.setFont(new Font("宋体", Font.BOLD, 17));
jb_reset.setBounds(113, 10, 97, 23);
panel_2.add(jb_reset);
JButton jb_login = new JButton("登录");
jb_login.setIcon(new ImageIcon(Login.class.getResource("/img/登录统计.png")));
jb_login.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
// 获取账号和密码
String userString=jt_user.getText();
char[] a=jt_psw.getPassword();
String pswString=String.valueOf(a);
// 查询是否匹配
String sql="select * from manager where user=?";
if (jt_user.getText().equals("")) {
mess1.setText("请输入账号：");
}else {
try {
ResultSet set=ConnectionManager.query(sql, new Object[] {userString});
if(set.next()) {
// 找到用户
String user=set.getString("user");
String psw=set.getString("password");
System.out.println(user+psw);
// 判断密码
if (pswString.equals("")) {
mess2.setText("请输入密码!");
}else if (psw.equals(pswString)) {
// 登录成功
System.out.println("登录成功！");
// 打开新窗口
jrame=new Jrame2(new Manager(userString, pswString));
// 关闭当前
dispose();
jrame.setVisible(true);
}else {
System.out.println("密码输入错误！");
mess2.setText("密码输入错误!");
}
}else {
System.out.println("账号不存在！");
mess1.setText("该账号不存在!");
}
} catch (SQLException e1) {
// TODO Auto-generated catch block
e1.printStackTrace();
}
}
}
});
// 动态清零
Document dt=jt_user.getDocument();
dt.addDocumentListener(new DocumentListener() {
@Override
public void removeUpdate(DocumentEvent e) {
// TODO Auto-generated method stub
mess1.setText("");
mess2.setText("");
}
@Override
public void insertUpdate(DocumentEvent e) {
// TODO Auto-generated method stub
mess1.setText("");
mess2.setText("");
}
@Override
public void changedUpdate(DocumentEvent e) {
// TODO Auto-generated method stub
mess1.setText("");
mess2.setText("");
}
});
jb_login.setFont(new Font("宋体", Font.BOLD, 17));
jb_login.setBounds(356, 10, 97, 23);
panel_2.add(jb_login);
}
}

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