org.apache.tomcat.util.http.parser.Cookie.logInvalidHeader A cookie header was received

在启动项目时遇到logInvalidHeader 的警告，当然不影响系统的运行，

先说问题来源： 是因为新版tomcat的cookie处理warn比老版严格造成，由tomcat6升级到tomcat8就会有这个问题。

[http-nio-8080-exec-5] org.apache.tomcat.util.http.parser.Cookie.logInvalidHeader A cookie header was received [XX] that contained an invalid cookie. That cookie will be ignored.Note: further occurrences of this error will be logged at DEBUG level.
解决方法：添加LegacyCookieProcessor文件来替代默认的cookie设置。（cookie解析器）

cat /usr/local/apache-tomcat-8.5.12/conf/context.xml

<?xml version="1.0" encoding="UTF-8"?>

<WatchedResource>WEB-INF/web.xml</WatchedResource>
<WatchedResource>${catalina.base}/conf/web.xml</WatchedResource>

<!--
<CookieProcessor className="org.apache.tomcat.util.http.Rfc6265CookieProcessor" />
-->

<CookieProcessor className="org.apache.tomcat.util.http.LegacyCookieProcessor" />

Rfc6265CookieProcessor这个配置不管用，问题出处：

https://stackoverflow.com/questions/36665320/a-cookie-header-was-received-that-contained-an-invalid-cookie

https://www.cnblogs.com/passedbylove/p/7587142.html#4166573

配置方案LegacyCookieProcessor说明：

https://tomcat.apache.org/tomcat-8.5-doc/config/cookie-processor.html#Legacy_Cookie_Processor_-_org.apache.tomcat.util.http.LegacyCookieProcessor
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原文链接：https://blog.csdn.net/wenyanxing/article/details/89640054