问题1： 我登录了client2，又登录了client3，现在我把client2退出了，在client3里面我F5刷新了一下，结果页面报错：
未能够识别出目标 'ST-41-2VcnVMguCDWJX5zHaaaD-'票根
问题2：登录了client，然后退出，再重新输入用户名，结果页面也会报错验证 'ST-41-2VcnVMguCDWJX5zHaaaD-'失败
解决方法：自己测试了多遍并在网上做了参考后修改，最后验证成功，之后就不报错了。解决办法如下：
单点登出，客户端配置。我尝试使用SAML作为认证和Ticket校验，但是调试时发现单点登出取标识的方式只能识别CAS的认证和校验。
认证：org.jasig.cas.client.authentication.AuthenticationFilter
校验：org.jasig.cas.client.validation.Cas20ProxyReceivingTicketValidationFilter
过滤器顺序：
1. CAS Single Sign Out Filter
2. CAS Validation Filter
3. CAS Authentication Filter
4. CAS HttpServletRequest Wrapper Filter
5. CAS Assertion Thread Local Filter
特别注意Validation在Authentication之前，因为我使用的是Cas20ProxyReceivingTicketValidationFilter。
根据CAS文档描述：If you are using proxy validation, you should map the validation filter before the authentication filter.
1
2
3
4 characterEncodingFilter
5 org.springframework.web.filter.CharacterEncodingFilter
6
7 encoding
8 UTF-8
9
10
11
12 characterEncodingFilter
13 /*
14
15
16
17 org.jasig.cas.client.session.SingleSignOutHttpSessionListener
18
19
20
21 CAS Single Sign Out Filter
22 org.jasig.cas.client.session.SingleSignOutFilter
23
24
25 CAS Single Sign Out Filter
26 /*
27
28
29
30
31 CAS Validation Filter
32 org.jasig.cas.client.validation.Cas20ProxyReceivingTicketValidationFilter
33
34 casServerUrlPrefix
35 http://cas./cas
36
37
38 serverName
39 http://xxpt.
40
41
42
43
44 CAS Validation Filter
45 /system/login/fm.jsp
46
47
48
49
50 CAS Filter
51 org.jasig.cas.client.authentication.AuthenticationFilter
52
53 casServerLoginUrl
54 http://cas./cas/login
55
56
57 serverName
58 http://xxpt.
59
60
61
62 CAS Filter
63 /system/login/fm.jsp
64
65
66
67
68 CAS HttpServletRequest Wrapper Filter
69 org.jasig.cas.client.util.HttpServletRequestWrapperFilter
70
71
72 CAS HttpServletRequest Wrapper Filter
73 /*
74
75
76
77 CAS Assertion Thread Local Filter
78 org.jasig.cas.client.util.AssertionThreadLocalFilter
79
80
81 CAS Assertion Thread Local Filter
82 /*
83
这样配置以后基本就解决这个问题了。
cas client 更新ticket_SSO单点登录一：cas单点登录防止登出退出后刷新后退ticket失效报500错 也有退出后直接重新登录报票根验证错误...
