Naming the JSP form controls in struts note

Write a form control like this in a JSP page

<td> Repair Task Code </td><td><input type= "text" id= "Mtaskcode" name= "Maintaininfocardinput.mtaskcode" Value= "${maintaininfocardinput.mtaskcode}"/></td>

The corresponding attribute in JavaBean is also written in the Mtaskcode notation.

The data for this form control in the Discovery page cannot be read into the JavaBean. Always appears as null

Later, the name is changed to the following form, OK (JavaBean also make the same change)

<td> Repair Task Code </td><td><input type= "text" id= "Mtaskcode" name= "Maintaininfocardinput.mtaskcode" Value= "${maintaininfocardinput.mtaskcode}"/></td>

Naming the JSP form controls in struts note