51 lines
1.5 KiB
Java
51 lines
1.5 KiB
Java
package dev.dao;
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import dev.database.DatabaseConnection;
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import dev.model.User;
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import java.sql.*;
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public class UserDao {
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public boolean save(User user) {
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String sql = "INSERT INTO users (username, password, email) VALUES (?, ?, ?)";
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try(Connection conn = DatabaseConnection.getConnection();
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PreparedStatement pstmt = conn.prepareStatement(sql)){
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pstmt.setString(1, user.getUsername());
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pstmt.setString(2, user.getPassword());
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pstmt.setString(3, user.getEmail());
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int affectedRows = pstmt.executeUpdate();
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return affectedRows > 0;
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}catch (SQLException e) {
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System.err.println("Error saving user: " + e.getMessage());
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return false;
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}
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}
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public User findByUsername(String username) {
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String sql = "SELECT * FROM users WHERE username = ?";
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try(Connection conn = DatabaseConnection.getConnection();
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PreparedStatement pstmt = conn.prepareStatement(sql)){
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pstmt.setString(1, username);
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ResultSet rs = pstmt.executeQuery();
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if (rs.next()){
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return new User(
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rs.getInt("id"),
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rs.getString("username"),
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rs.getString("password"),
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rs.getString("email")
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);
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}
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} catch (SQLException e) {
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System.err.println("Error finding user: " + e.getMessage());
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}
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return null;
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}
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} |