7行目: | 7行目: | ||
==例== | ==例== | ||
static final String URL = "jdbc:mysql://localhost:3306/day_results"; | |||
static final String USER = "yoosuke"; | |||
static final String PASSWD = "hoge"; | |||
public static ArrayList<Item> itemGet() { | public static ArrayList<Item> itemGet() { | ||
try (Connection con = DriverManager.getConnection(URL, USER, PASSWD);) { | try (Connection con = DriverManager.getConnection(URL, USER, PASSWD);) { |
2019年6月27日 (木) 22:29時点における版
私は一連のJDBC(Java DataBase Connectivity)ドライバを管理します。
メソッド
- getConnection - 指定データベースURLへの接続を試みる
例
static final String URL = "jdbc:mysql://localhost:3306/day_results"; static final String USER = "yoosuke"; static final String PASSWD = "hoge";
public static ArrayList<Item> itemGet() { try (Connection con = DriverManager.getConnection(URL, USER, PASSWD);) { Statement stm = con.createStatement(); String sql = "SELECT * FROM pfmc ORDER BY date desc LIMIT 15"; ResultSet rs = stm.executeQuery(sql); ArrayList<Item> items = new ArrayList<Item>(); while (rs.next()) { Item item = new Item(); item.setDate(rs.getString("date")); item.setScTime(rs.getString("sc_time")); item.setStTime(rs.getString("st_time")); item.setJogg(rs.getString("jogg")); items.add(item); } rs.close(); stm.close(); return items; } catch (Exception e) { e.printStackTrace(); return null; } }