request getParameter is always null when using enctype=“multipart/form-data”

Question

I am performing validation of inputted data such as email, password, name, etc. But I am already stuck on the first stage of validation which is to check if User entered not

Answer 1

Since it is a multipart/form-data (usually used for the puropose of uploading one/more file(s)) form the request.getParameter() method will always return null.

You can try

Or completely remove the enctype parameter.

Some references in another SO question.

How to upload files to server using JSP/Servlet?