SpringBoot integration Thymeleaf form update

For updated form values ​​and echoing the logic of comparison we have been very familiar with,

But we will be operating Thymeleaf then here a little pits, and

 

On all fields you want to echo back the value of the form, we should add th: field, before they can complete the echo value update

 

 

Or write

 

 

 

To complete return significant value added and updated