String driver = props.getProperty("jdbc.dest.driver");
String url = props.getProperty("jdbc.dest.url");
String user = props.getProperty("jdbc.dest.username");
String pass = props.getProperty("jdbc.dest.password");
user = StringUtils.isNullOrEmpty(user) ? null : user;
pass = StringUtils.isNullOrEmpty(pass) ? null : pass;

Class.forName(driver);
Connection con;
if ((user == null) && (pass == null)) {
    con = DriverManager.getConnection(url);
} else {
    con = DriverManager.getConnection(url, user, pass);
}
PreparedStatement stmtTestConnection = con.prepareStatement("select dataid ,name from DTREE where dataid = ?");
stmtTestConnection.setInt(1, 2000);
ResultSet rs = stmtTestConnection.executeQuery();
while(rs.next()) {
    System.out.printf("dataid: %s, name: %s%n", rs.getInt(1), rs.getString(2));
}