在应用WEB-INF/web.xml添加filter的内容，效果如下所示

org.jasig.cas.client.session.SingleSignOutHttpSessionListener

CAS Single Sign Out Filter

org.jasig.cas.client.session.SingleSignOutFilter

CAS Single Sign Out Filter

/*

CASFilter

org.jasig.cas.client.authentication.AuthenticationFilter

casServerLoginUrl

https://sso.aurora-framework.org:8080/cas/login

serverName

https://sso.aurora-framework.org:8080

CASFilter

/*

CAS Validation Filter

org.jasig.cas.client.validation.Cas20ProxyReceivingTicketValidationFilter

casServerUrlPrefix

https://sso.aurora-framework.org:8080/cas

serverName

https://sso.aurora-framework.org:8080

CAS Validation Filter

/*

CAS HttpServletRequest Wrapper Filter

org.jasig.cas.client.util.HttpServletRequestWrapperFilter

CAS HttpServletRequest Wrapper Filter

/*

CAS Assertion Thread Local Filter

org.jasig.cas.client.util.AssertionThreadLocalFilter

CAS Assertion Thread Local Filter

/*

AutoSetUserAdapterFilter

AutoSetUserAdapterFilter

aurora.plugin.sso.cas.AutoSetUserFilter

roleSelectPageUrl

https://sso.aurora-framework.org:8080/yourapp/role_select.screen

AutoSetUserAdapterFilter

/*

前面几个都是CAS的标准配置，最后一个AutoSetUserAdapterFilter(自定义，可以取其他任意名字)才是我们支持cas的客户化程序。其中roleSelectPageUrl是指用户完成单点登录后跳转的页面。

本文档撰写时java web项目和CAS用同一个tomcat，所以都用的https。否则只需要配置CAS的链接为HTTPS，本项目连接用HTTP。