Nonnection conn= DriverManager.getConnection(url,user,password);
PreparedStatement select_stm=conn.prepareStatement("select id from certcontent where pin=?");
----------------------^^参数呢???
ResultSet result=select_stm.executeQuery();
这里所说的游标是否就是:
Connection conn= DriverManager.getConnection(url,user,password);
PreparedStatement select_stm=conn.prepareStatement("select id from certcontent where pin=?");
ResultSet result=select_stm.executeQuery();
里面定义的值呢?