Java Swing JDBC MySQL Database Example

In this tutorial, we will learn how to create a Java swing application and connect to a MySQL database using the JDBC API.

Recommended Java Swing tutorials:

What we'll build?

In this tutorial, we build a simple Login application using Swing and we authenticate application User with database username and password.
Here is the screenshot shows the output of this application:

Add Maven Dependency

Let's add MySQL driver maven dependency to above-created maven project:
        <!-- https://mvnrepository.com/artifact/mysql/mysql-connector-java -->
        <dependency>
            <groupId>mysql</groupId>
            <artifactId>mysql-connector-java</artifactId>
            <version>8.0.15</version>
        </dependency>

Database Setup

Make sure that you have installed the MySQL server on your machine.
Let's first create a database with the following SQL statement:
create database swing_demo;
Now, let's create a student table in the above-created database with the following SQL statement:
CREATE TABLE student
( id int NOT NULL,
  name varchar(250) NOT NULL,
  password varchar(250)
);
Insert a single record in the above table with the following SQL statement:
INSERT INTO student (id, name, password)
VALUES (1, 'Ramesh', 'Ramesh@123');

Create a Simple Java Project

Let's create a simple Java project in Eclipse IDE, name this project as "swing-registration-from-example".
You can use this tutorial to create a simple Java project in Eclipse IDE.

Connecting With Database

In order to connect our Java program with MySQL database, we need to include MySQL JDBC driver which is a JAR file, namely mysql-connector-java-8.0.13-bin.jar.
Let's download this jar file and add to your project classpath.

Java Swing JDBC MySQL Database Example

Let's write a code to develop user login form using Java Swing APIs.
package com.javaguides.javaswing.login;

import java.awt.Color;
import java.awt.EventQueue;
import java.awt.Font;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.PreparedStatement;
import java.sql.ResultSet;
import java.sql.SQLException;

import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JOptionPane;
import javax.swing.JPanel;
import javax.swing.JPasswordField;
import javax.swing.JTextField;
import javax.swing.border.EmptyBorder;

public class UserLogin extends JFrame {

    private static final long serialVersionUID = 1 L;
    private JTextField textField;
    private JPasswordField passwordField;
    private JButton btnNewButton;
    private JLabel label;
    private JPanel contentPane;

    /**
     * Launch the application.
     */
    public static void main(String[] args) {
        EventQueue.invokeLater(new Runnable() {
            public void run() {
                try {
                    UserLogin frame = new UserLogin();
                    frame.setVisible(true);
                } catch (Exception e) {
                    e.printStackTrace();
                }
            }
        });
    }

    /**
     * Create the frame.
     */
    public UserLogin() {
        setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        setBounds(450, 190, 1014, 597);
        setResizable(false);
        contentPane = new JPanel();
        contentPane.setBorder(new EmptyBorder(5, 5, 5, 5));
        setContentPane(contentPane);
        contentPane.setLayout(null);

        JLabel lblNewLabel = new JLabel("Login");
        lblNewLabel.setForeground(Color.BLACK);
        lblNewLabel.setFont(new Font("Times New Roman", Font.PLAIN, 46));
        lblNewLabel.setBounds(423, 13, 273, 93);
        contentPane.add(lblNewLabel);

        textField = new JTextField();
        textField.setFont(new Font("Tahoma", Font.PLAIN, 32));
        textField.setBounds(481, 170, 281, 68);
        contentPane.add(textField);
        textField.setColumns(10);

        passwordField = new JPasswordField();
        passwordField.setFont(new Font("Tahoma", Font.PLAIN, 32));
        passwordField.setBounds(481, 286, 281, 68);
        contentPane.add(passwordField);

        JLabel lblUsername = new JLabel("Username");
        lblUsername.setBackground(Color.BLACK);
        lblUsername.setForeground(Color.BLACK);
        lblUsername.setFont(new Font("Tahoma", Font.PLAIN, 31));
        lblUsername.setBounds(250, 166, 193, 52);
        contentPane.add(lblUsername);

        JLabel lblPassword = new JLabel("Password");
        lblPassword.setForeground(Color.BLACK);
        lblPassword.setBackground(Color.CYAN);
        lblPassword.setFont(new Font("Tahoma", Font.PLAIN, 31));
        lblPassword.setBounds(250, 286, 193, 52);
        contentPane.add(lblPassword);

        btnNewButton = new JButton("Login");
        btnNewButton.setFont(new Font("Tahoma", Font.PLAIN, 26));
        btnNewButton.setBounds(545, 392, 162, 73);
        btnNewButton.addActionListener(new ActionListener() {

            public void actionPerformed(ActionEvent e) {
                String userName = textField.getText();
                String password = passwordField.getText();
                try {
                    Connection connection = (Connection) DriverManager.getConnection("jdbc:mysql://localhost:3306/swing_demo",
                        "root", "root");

                    PreparedStatement st = (PreparedStatement) connection
                        .prepareStatement("Select name, password from student where name=? and password=?");

                    st.setString(1, userName);
                    st.setString(2, password);
                    ResultSet rs = st.executeQuery();
                    if (rs.next()) {
                        dispose();
                        UserHome ah = new UserHome(userName);
                        ah.setTitle("Welcome");
                        ah.setVisible(true);
                        JOptionPane.showMessageDialog(btnNewButton, "You have successfully logged in");
                    } else {
                        JOptionPane.showMessageDialog(btnNewButton, "Wrong Username & Password");
                    }
                } catch (SQLException sqlException) {
                    sqlException.printStackTrace();
                }
            }
        });

        contentPane.add(btnNewButton);

        label = new JLabel("");
        label.setBounds(0, 0, 1008, 562);
        contentPane.add(label);
    }
}
Learn a complete JDBC tutorial at https://www.javaguides.net/p/jdbc-tutorial.html.

Demo

Let's run UserLogin.java file and the below screenshot shows the step by step execution of this application.

User Login

Enter User Login Details

User Login Success


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