myapp.java

k0z31y4

May 21st, 2025

159

Never

Add comment

Not a member of Pastebin yet? Sign Up, it unlocks many cool features!

Java 1.35 KB | Source Code | 0 0

raw download clone embed print report

import java.sql.*;
public class LoginService {
private static final String DB_URL = "jdbc:mysql://localhost:3306/users?user=root&password=secret123";
public boolean authenticate(String username, String password) {
Connection conn = null;
Statement stmt = null;
ResultSet rs = null;
try {
conn = DriverManager.getConnection(DB_URL);
stmt = conn.createStatement();
String query = "SELECT * FROM users WHERE username = '" + username +
"' AND password = '" + password + "'";
rs = stmt.executeQuery(query);
if (rs.next()) {
return true;
}
} catch (SQLException e) {
e.printStackTrace();
} finally {
try {
if (rs != null) rs.close();
if (stmt != null) stmt.close();
if (conn != null) conn.close();
} catch (SQLException e) {
e.printStackTrace();
}
}
return false;
}
public static void main(String[] args) {
LoginService service = new LoginService();
boolean result = service.authenticate(args[0], args[1]);
System.out.println("Authentication " + (result ? "successful" : "failed"));
}
}

Add Comment

Please, Sign In to add comment