An invalid domain [.xxx.com] was specified for this cookie異常解決
阿新 • • 發佈：2019-03-11
在專案中需要向瀏覽器寫cookie，使用的是tomcat8.5，在寫cookie的時候設定了一級域名 如： .xxx.com , 但是在寫cookie的時候，丟擲了異常:
An invalid domain [.xxx.com] was specified for this cookie
經查這種域名設定是cookie 版本0的遺留格式
在tomcat8.5上是使用org.apache.tomcat.util.http.Rfc6265CookieProcessor
The standard implementation of CookieProcessor is org.apache.tomcat.util.http.Rfc6265CookieProcessor. This cookie processor is based on RFC6265 with the following changes to support better interoperability: Values 0x80 to 0xFF are permitted in cookie-octet to support the use of UTF-8 in cookie values as used by HTML 5. For cookies without a value, the '=' is not required after the name as some browsers do not sent it. The RFC 6265 cookie processor is generally more lenient than the legacy cookie parser. In particular: The '=' and '/' characters are always permitted in a cookie value. Name only cookies are always permitted. The cookie header is always preserved. No additional attributes are supported by the RFC 6265 Cookie Processor.
在tomcat8.0及以下使用的是org.apache.tomcat.util.http.LegacyCookieProcessor
The standard implementation of CookieProcessor is org.apache.tomcat.util.http.LegacyCookieProcessor. Note that it is anticipated that this will change to org.apache.tomcat.util.http.Rfc6265CookieProcessor in a future Tomcat 8 release. This is the legacy cookie parser based on RFC6265, RFC2109 and RFC2616. It implements a strict interpretation of the cookie specifications. Due to various interoperability issues with browsers not all strict behaviours are enabled by default and additional options are available to further relax the behaviour of this cookie processor if required.
問題就可以定位在CookieProcessor不同實現引起的。
解決辦法：
1. 針對於單獨使用Tomcat的使用者，修改tomcat的配置檔案，設定tomcat使用LegacyCookieProcessor 來處理：
修改tomcat的conf/context.xml 檔案，在<Context></Context>中間加上：
<CookieProcessor className="org.apache.tomcat.util.http.LegacyCookieProcessor" />
如下：
<Context>
<!-- Default set of monitored resources. If one of these changes, the -->
<!-- web application will be reloaded. -->
<WatchedResource>WEB-INF/web.xml</WatchedResource>
<WatchedResource>${catalina.base}/conf/web.xml</WatchedResource>
<CookieProcessor className="org.apache.tomcat.util.http.LegacyCookieProcessor" />
<!-- Uncomment this to disable session persistence across Tomcat restarts -->
<!--
<Manager pathname="" />
-->
</Context>然後重啟tomcat即可。
2. 如果使用的是springboot，則需要使用程式碼進行配置：
/**
* 解決cookie根域名設定問題
* @author Declan
*/
@Configuration
public class CookieConfig {
/**
* 解決問題：
* There was an unexpected error (type=Internal Server Error, status=500).
* An invalid domain [.xxx.com] was specified for this cookie
*
* @return
*/
@Bean
public WebServerFactoryCustomizer<TomcatServletWebServerFactory> cookieProcessorCustomizer() {
return (factory) -> factory.addContextCustomizers(
(context) -> context.setCookieProcessor(new LegacyCookieProcessor()));
}
}還有一種解決辦法，就是在Tomcat8.5以後的版本，在配置域名的時候，不要在域名前加 "."， 配置如下：
ck.setDomain("xxx.com")在tomcat8.5以前的版本，在域名前加 "." ， 配置如下：
ck.setDomain(".xxx.com")