Why does this return false for any normal word I enter?
if(!guestbook.getName().matches("[a-zA-Z0-9\\s]")) {
errors.rejectValue("name", "stringFormat.falseCharacters", "You are only allowed to use numbers, letters and spaces for the name.");
}
I must be missing something.
Your regex only matches one-character long Strings.
To match one or more number of characters change it to:
"[a-zA-Z0-9\\s]+"
You might also find this (imo great) Regular-Expressions reference useful.
What you need is [a-zA-Z0-9\\s]+. Add + at the end.
Because you should add the '+' at the end of your regex, otherwise you are requesting the match of just one character.
In regular expressions you use the + at the end of your range to specify "more than one" while in your case you probe for only for expressions with a length of one.
Try this regex "^[A-Za-z0-9\s]+$",
if(!guestbook.getName().matches("^[A-Za-z0-9\\s]+$")) {
errors.rejectValue("name", "stringFormat.falseCharacters", "You are only allowed to use numbers, letters and spaces for the name.");
}
