while (rs.next())是什么意思??
String sql = "select id,cid,name,age,birthday from stu where id=?";
Object[] params = { id };
ResultSet rs = db.executeSqlWithResult(sql, params);
while (rs.next()) {
s.setId(rs.getInt("id"));
s.setcName(rs.getString("cid"));
s.setName(rs.getString("name"));
s.setAge(rs.getInt("age"));
s.setBir(rs.getTimestamp("birthday"));
在这个程序中s.set的五个设置能不能改变顺序,能不能缺少哪一项????求解决,谢谢!!!