What is difference between @FormDataParam and @FormParam

Question

What is the difference between @FormDataParam and @FormParam?

I was using multiple @FormDataParam in a method but it was throw

Answer 1

From the documentation FormParam:

Binds the value(s) of a form parameter contained within a request entity body to a resource method parameter. Values are URL decoded unless this is disabled using the Encoded annotation. A default value can be specified using the DefaultValue annotation. If the request entity body is absent or is an unsupported media type, the default value is used.

and FormDataParam

Binds the named body part(s) of a "multipart/form-data" request entity body to a resource method parameter.