Control character in cookie value or attribute.

问题描述

java设置cookie报错：

java.lang.IllegalArgumentException: Control character in cookie value or attribute.
at org.apache.tomcat.util.http.CookieSupport.isV0Separator(CookieSupport.java:165)
at org.apache.tomcat.util.http.Cookies.processCookieHeader(Cookies.java:349)
at org.apache.tomcat.util.http.Cookies.processCookies(Cookies.java:176)
..省略...

问题原因

Java在后端response中设置cookie的时候，cookie的值有中文字符，cookie是不支持中文字符。

解决办法

后台url编码

Cookie nickname = new Cookie("_uNickname", URLEncoder.encode(userBase.getNickname(), "utf-8"));

前端 js url解码