JSP Tutorial: action,form/common field of correspondence

Is the day to change the bug, today encountered this very headache, especially in other people's code based on the change, is the head big. After 2 hours, there is a mistake feeling very baffling, so that colleagues next to see a while, only to find out that they have made a naïve mistake, too do not pay attention to details:

The correct wording for a form is as follows:

The following are the referenced contents: <% expenseitemform form = (expenseitemform) request.getattribute ("Oldexpenseitemform"); %> <input name= "Expenseitemnumber" type= "text" class= "input" Value= "<%=form.getexpenseitemnumber ()%>" size= "> Action-------------------- Expenseitemform oldexpenseitemform = new Expenseitemform (); Oldexpenseitemform.setexpenseitemnumber (Oldexpenseitemnumber); . . . Request.setattribute ("Oldexpenseitemform", oldexpenseitemform);

The correct wording for a common field is as follows:

The

The following is the referenced content: <input name= "Roleid" "class=" "id=" Roleid "size=" &NBSP;   value= "<%=request.getattribute (" Roleid ")%>" type= " Hidden ">  or <input name=" Roleid "class=" "id=" Roleid "size=" "&NBSP;   value=" ${roleid} "type= "Hidden" >  Action--------------------  Request.setattribute ("Roleid", Roleid);