private void disconnect() throws Exception {
if (con != null)
{
con.close();
con = null;
}
}
protected void connect()
throws Exception {
disconnect();
con =
getConnection();
}
上面是一般寫法.
public Connection getConnection()
throws Exception
{
Class.forName(props.getProperty("driver"));
String url =
props.getProperty("url");
Connection con =
DriverManager.getConnection(url,
props);
// showWarnings(con.getWarnings());
initLanguage(con);
return
con;
}