A result that send the content out as plain text. Useful typically when needed
to display the raw content of a JSP or Html file for example.
- location (default) = location of the file (jsp/html) to be displayed as plain text.
- charSet (optional) = character set to be used. This character set will be used to set the
response type (eg. Content-Type=text/plain; charset=UTF-8) and when reading
using a Reader. Some example of charSet would be UTF-8, ISO-8859-1 etc.