Cookie中存储中文异常
今天存储cookie用户名称时发生异常
临床表现：RFC6265 Cookie values characters restricted to US-ASCII: 0x5468
Cookie默认支持的编码方式是ASCII码
治疗手段：
1.创建cookie
Cookie cookie = new Cookie(name,URLEncoder.encode(value, "UTF-8")); 2.读取cookie
String value = URLDecoder.decode(cookie.getValue(), "UTF-8");