JDBC例
1つ目:
Javaコード public static void add() throws Exception { final String url = "jdbc:mysql://127.0.0.1:3306/test"; final String user = "root"; final String pwd = "1234"; Connection cn = null; Statement stm = null; try { Class.forName("org.gjt.mm.mysql.Driver"); cn = DriverManager.getConnection(url, user, pwd); stm = cn.createStatement(); final String sql = " insert into user values(9999999,'123','2008-01-01')"; stm.execute(sql); } finally { stm.close(); cn.close(); } }
2つ目:
Javaコード package dao; import java.sql.Connection; import java.sql.DriverManager; import java.sql.PreparedStatement; import java.sql.ResultSet; import java.sql.SQLException; import java.sql.Statement; /** *@author zl JDBC接続データベースの例 * */ public class JDBC { public static Connection getConnection() { final String url = "jdbc:mysql://127.0.0.1:3306/test"; final String sUsr = "root"; final String sPwd = "1234"; try { Class.forName("org.gjt.mm.mysql.Driver"); return DriverManager.getConnection(url, sUsr, sPwd); } catch (final ClassNotFoundException e) { //TODO駆動 が見つからない } catch (final SQLException e) { //TDODO接続例外 を作成 } return null; } public static void get() throws SQLException { final String sql = "SELECT id,name FROM user where id=?"; PreparedStatement pstmt = null; final Connection cn = getConnection(); try { pstmt = cn.prepareStatement(sql); pstmt.setInt(1, 468000); final ResultSet rs = pstmt.executeQuery(); while (rs.next()) { System.out.print(rs.getString("id")); System.out.print(":"); System.out.print(rs.getString("name") + "\r"); } rs.close(); pstmt.close(); } finally { try { cn.close(); } catch (final SQLException e) { e.printStackTrace(); } } } public static void main(final String[] args) throws Exception { get(); //add(); } }
Javaコード
public static void add() throws Exception
{
final String url = "jdbc:mysql://127.0.0.1:3306/test";
final String user = "root";
final String pwd = "1234";
Connection cn = null;
Statement stm = null;
try
{
Class.forName("org.gjt.mm.mysql.Driver");
cn = DriverManager.getConnection(url, user, pwd);
stm = cn.createStatement();
final String sql = " insert into user values(9999999,'123','2008-01-01')";
stm.execute(sql);
}
finally
{
stm.close();
cn.close();
}
}
2つ目:
Javaコード