Yale CAS异常问题总结(1)Unable to validate ProxyTicketValidator之HTTPS hostname wrong: should be.....

严重: edu.yale.its.tp.cas.client.CASAuthenticationException: Unable to validate ProxyTicketValidator [[edu.yale.its.tp.cas.client.ProxyTicketValidator prox
yList=[null] [edu.yale.its.tp.cas.client.ServiceTicketValidator casValidateUrl=[https://192.168.1.111:8443/cas/proxyValidate] ticket=[ST-0-9h7Mx5HK3pfsdxRv
MD3y] service=[http%3A%2F%2F192.168.1.222%3A8080%2Fservlets-examples%2Fservlet%2FHelloWorldExample] renew=false]]]


这个CAS异常是从CAS Client里面抛出，是当我们不使用证书的CN去访问域名的时候（比如下文是用IP访问而且证书的CN是该IP对应的域名而非该IP），CASClient无法信任，因为你证书的CN命名写着abc.com，192.168.1.111这个IP是无法被CAS Client识别。

edu.yale.its.tp.cas.client.CASAuthenticationException: Unable to validate ProxyTicketValidator [[edu.yale.its.tp.cas.client.ProxyTicketValidator proxyList = [ null ] [edu.yale.its.tp.cas.client.ServiceTicketValidator casValidateUrl = [https: // 192.168.1.111:8443/cas/proxyValidate] ticket=[ST-0-9h7Mx5HK3pfsdxRvMD3y] service=[http%3A%2F%2F192.168.1.222%3A8080%2Fservlets-examples%2Fservlet%2FHelloWorldExample] renew=false]]]
    at edu.yale.its.tp.cas.client.CASReceipt.getReceipt(CASReceipt.java: 52 )
    at edu.yale.its.tp.cas.client.filter.CASFilter.getAuthenticatedUser(CASFilter.java: 455 )
    at edu.yale.its.tp.cas.client.filter.CASFilter.doFilter(CASFilter.java: 378 )
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java: 202 )
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java: 173 )
    at filters.ExampleFilter.doFilter(ExampleFilter.java: 101 )
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java: 202 )
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java: 173 )
    at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java: 213 )
    at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java: 178 )
    at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java: 432 )
    at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java: 126 )
    at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java: 105 )
    at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java: 107 )
    at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java: 148 )
    at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java: 869 )
    at org.apache.coyote.http11.Http11BaseProtocol$Http11ConnectionHandler.processConnection(Http11BaseProtocol.java: 664 )
    at org.apache.tomcat.util.net.PoolTcpEndpoint.processSocket(PoolTcpEndpoint.java: 527 )
    at org.apache.tomcat.util.net.LeaderFollowerWorkerThread.runIt(LeaderFollowerWorkerThread.java: 80 )
    at org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java: 684 )
    at java.lang.Thread.run(Thread.java: 595 )
Caused by: java.io.IOException: HTTPS hostname wrong:  should be  < 192.168 . 1.111 >
    at sun.net.www.protocol.https.HttpsClient.checkURLSpoofing(HttpsClient.java: 493 )
    at sun.net.www.protocol.https.HttpsClient.afterConnect(HttpsClient.java: 418 )
    at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.connect(AbstractDelegateHttpsURLConnection.java: 170 )
    at sun.net.www.protocol.http.HttpURLConnection.getInputStream(HttpURLConnection.java: 905 )
    at sun.net.www.protocol.https.HttpsURLConnectionImpl.getInputStream(HttpsURLConnectionImpl.java: 234 )
    at edu.yale.its.tp.cas.util.SecureURL.retrieve(SecureURL.java: 84 )
    at edu.yale.its.tp.cas.client.ServiceTicketValidator.validate(ServiceTicketValidator.java: 212 )
    at edu.yale.its.tp.cas.client.CASReceipt.getReceipt(CASReceipt.java: 50 )

解决办法：
用域名访问，域名就是证书的CN。