CAS认证报The CAS server returned no response，求高手指教
javax.servlet.ServletException: org.jasig.cas.client.validation.TicketValidationException: The CAS server returned no response.
org.jasig.cas.client.validation.AbstractTicketValidationFilter.doFilter(AbstractTicketValidationFilter.java:155)
org.jasig.cas.client.authentication.AuthenticationFilter.doFilter(AuthenticationFilter.java:111)
root cause
org.jasig.cas.client.validation.TicketValidationException: The CAS server returned no response.
org.jasig.cas.client.validation.AbstractUrlBasedTicketValidator.validate(AbstractUrlBasedTicketValidator.java:181)
org.jasig.cas.client.validation.AbstractTicketValidationFilter.doFilter(AbstractTicketValidationFilter.java:132)
org.jasig.cas.client.authentication.AuthenticationFilter.doFilter(AuthenticationFilter.java:111)
cas
[解决办法]
把服务端的信息贴出来
[解决办法]
这是在应用拿到ticket票据后，去CAS那里验证票据有效性时，没得到响应。查看CAS运行是否正常，尤其是CAS和应用的相关配置是否正确。
