我是一名开发人员，当 Cookie 包含变音字符（ä、ö、ü）时，我遇到以下异常，我尝试了很多解决方案和配置，但没有任何结果。
我用的是Tomcat7
请任何解决方案
Feb 21, 2013 6:29:16 AM org.apache.coyote.http11.AbstractHttp11Processor process
SEVERE: Error processing request
java.lang.IllegalArgumentException: Control character in cookie value or attribute.
at org.apache.tomcat.util.http.CookieSupport.isHttpSeparator(CookieSupport.java:193)
at org.apache.tomcat.util.http.Cookies.getTokenEndPosition(Cookies.java:488)
at org.apache.tomcat.util.http.Cookies.processCookieHeader(Cookies.java:291)
at org.apache.tomcat.util.http.Cookies.processCookies(Cookies.java:168)
at org.apache.tomcat.util.http.Cookies.getCookieCount(Cookies.java:106)
at org.apache.catalina.connector.CoyoteAdapter.parseSessionCookiesId(CoyoteAdapter.java:919)
at org.apache.catalina.connector.CoyoteAdapter.postParseRequest(CoyoteAdapter.java:688)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:402)
at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:987)
at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:579)
at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.run(NioEndpoint.java:1600)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1110)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:603)
at java.lang.Thread.run(Thread.java:722)
根据另一个问题的评论，您需要升级到 tomcat 8.0.15（或更高版本）并启用 RFC 6455 cookie 处理器。
记录在这里：http://tomcat.apache.org/tomcat-8.0-doc/config/cookie-processor.html http://tomcat.apache.org/tomcat-8.0-doc/config/cookie-processor.html
通过以下方式在conf/context.xml中启用它：
<Context>
<CookieProcessor className="org.apache.tomcat.util.http.Rfc6265CookieProcessor" />
</Context>
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