How do I implement database authentication in Java?

How do I implement database authentication in Java?

To implement database authentication in Java, you can use JDBC to connect to your database and validate user credentials.

Can you provide a code example for that?

Sure! Here's a simple example:

import java.sql.*;

public class Auth {
    public static boolean authenticate(String username, String password) {
        try {
            Connection conn = DriverManager.getConnection("jdbc:mysql://localhost:3306/yourdb", "user", "pass");
            PreparedStatement stmt = conn.prepareStatement("SELECT * FROM users WHERE username = ? AND password = ?");
            stmt.setString(1, username);
            stmt.setString(2, password);
            ResultSet rs = stmt.executeQuery();
            return rs.next(); // returns true if user exists
        } catch (SQLException e) {
            e.printStackTrace();
            return false;
        }
    }
}

What are some security best practices for database authentication?

Some best practices include using hashed passwords, implementing prepared statements to prevent SQL injection, and using SSL for database connections.