cookie报错 ：服务器异常An invalid character [32] was present in the Cookie value

String KaptchaOwner= CommunityUtil.generateUUID();

Cookie cookie=new Cookie("kaptchaOwner",KaptchaOwner);

response.addCookie(cookie);
错误原因是在于cookie中不能存在非法字符，比如空格，而uuid生成的字符会产生空格导致cookie错误