DB Open Conntection Exception : Before start of result set

	String sql = "select * from Users where userid like '%" + userid + "%'";
	ResultSet rs = stmt.executeQuery(sql);

아주 간단한 문제였다. rs.next(); 를 안써준 것;

	String sql = "select * from Users where userid like '%" + userid + "%'";
	ResultSet rs = stmt.executeQuery(sql);
        if(rs.next()){

물론 Select 값이 여러개면 while로 돌려줘야겠지만.