CAS单点登录之mysql数据库用户验证及常见问题

　　前面已经介绍了CAS服务器的搭建，详情见：搭建CAS单点登录服务器。然而前面只是简单地介绍了服务器的搭建，其验证方式是原始的配置文件的方式，这显然不能满足日常的需求。下面介绍下通过mysql数据库认证的方式。

　　一、CAS认证之mysql数据库认证

　　1、在mysql中新建一个cas数据库并创建user表

CREATE DATABASE /*!32312 IF NOT EXISTS*/`cas` /*!40100 DEFAULT CHARACTER SET gbk */;USE `cas`;/*Table structure for table `user` */DROP TABLE IF EXISTS `user`;CREATE TABLE `user` (  `id` int(11) NOT NULL AUTO_INCREMENT,  `name` varchar(255) NOT NULL,  `password` varchar(255) NOT NULL,  `used` tinyint(2) NOT NULL,  PRIMARY KEY (`id`)) ENGINE=MyISAM AUTO_INCREMENT=2 DEFAULT CHARSET=gbk;/*Data for the table `user` */insert  into `user`(`id`,`name`,`password`,`used`) values (1,'casuser','9414f9301cdb492b4dcd83f8c711d8bb',1);

　　2、CAS的HTTP模式与HTTPS设置（可省略）

      1）cas\WEB-INF\deployerConfigContext.xml，新增p:requireSecure="false"    <bean id="proxyAuthenticationHandler"          class="org.jasig.cas.authentication.handler.support.HttpBasedServiceCredentialsAuthenticationHandler"          p:httpClient-ref="httpClient" p:requireSecure="false"/>      2）cas\WEB-INF\spring-configuration　　　　ticketGrantingTicketCookieGenerator.xml设置p:cookieSecure="false"　　　　warnCookieGenerator.xml设置p:cookieSecure="false"

　　http://localhost:8080/cas/login，进入登录页面。

　　默认用户为casuser/Mellon，登录成功即配置完成。

　　3、设置利用数据库来验证用户

依赖包：
c3p0-0.9.1.2.jar
mysql-connector-java-5.1.21.jar
cas-server-support-jdbc-4.0.0.jar

cas\WEB-INF\deployerConfigContext.xml  1）更换验证方式 <!--   <bean id="primaryAuthenticationHandler"          class="org.jasig.cas.authentication.AcceptUsersAuthenticationHandler">        <property name="users">            <map>                <entry key="casuser" value="Mellon"/>            </map>        </property>    </bean>    -->   <!-- Define the DB Connection -->   <bean id="dataSource"     class="com.mchange.v2.c3p0.ComboPooledDataSource"     p:driverClass="com.mysql.jdbc.Driver"     p:jdbcUrl="jdbc:mysql://127.0.0.1:3306/cas?useUnicode=true&amp;characterEncoding=UTF-8&amp;zeroDateTimeBehavior=convertToNull"     p:user="root"     p:password="root" />      <!-- Define the encode method-->     <!--<bean id="passwordEncoder"        class="org.jasig.cas.authentication.handler.DefaultPasswordEncoder" autowire="byName">           <constructor-arg value="MD5"/>      </bean> -->    <bean id="passwordEncoder"      class="org.jasig.cas.authentication.handler.DefaultPasswordEncoder"      c:encodingAlgorithm="MD5"      p:characterEncoding="UTF-8" />      <bean id="dbAuthHandler"      class="org.jasig.cas.adaptors.jdbc.QueryDatabaseAuthenticationHandler"      p:dataSource-ref="dataSource"      p:sql="select password from user where name=? and used=1"     p:passwordEncoder-ref="passwordEncoder"/>     <!-- p:passwordEncoder-ref="passwordEncoder" -->    2）更换验证Handle<bean id="authenticationManager" class="org.jasig.cas.authentication.PolicyBasedAuthenticationManager">        <constructor-arg>            <map>                <!--                   | IMPORTANT                   | Every handler requires a unique name.                   | If more than one instance of the same handler class is configured, you must explicitly                   | set its name to something other than its default name (typically the simple class name).                   -->                <entry key-ref="proxyAuthenticationHandler" value-ref="proxyPrincipalResolver" />                <entry key-ref="dbAuthHandler" value-ref="primaryPrincipalResolver" />           <!-- <entry key-ref="primaryAuthenticationHandler" value-ref="primaryPrincipalResolver" /> -->            </map>        </constructor-arg>

　　http://localhost:8080/cas，进入登录页面。如果没有配置http登录，则需要通过http://localhost:8443/cas进行访问

　　默认用户为casuser/Mellon，登录成功即配置完成。

　　二、常见异常

　　1、证书路径不正确，由于证书未正常导入到jre\lib\security下，因此会出现以下异常。

十一月 09, 2015 4:00:31 下午 org.jasig.cas.client.util.CommonUtils getResponseFromServer严重: sun.security.validator.ValidatorException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested targetjavax.net.ssl.SSLHandshakeException: sun.security.validator.ValidatorException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target    at sun.security.ssl.Alerts.getSSLException(Alerts.java:192)    at sun.security.ssl.SSLSocketImpl.fatal(SSLSocketImpl.java:1949)    at sun.security.ssl.Handshaker.fatalSE(Handshaker.java:302)    at sun.security.ssl.Handshaker.fatalSE(Handshaker.java:296)    at sun.security.ssl.ClientHandshaker.serverCertificate(ClientHandshaker.java:1506)    at sun.security.ssl.ClientHandshaker.processMessage(ClientHandshaker.java:216)    at sun.security.ssl.Handshaker.processLoop(Handshaker.java:979)    at sun.security.ssl.Handshaker.process_record(Handshaker.java:914)    at sun.security.ssl.SSLSocketImpl.readRecord(SSLSocketImpl.java:1062)    at sun.security.ssl.SSLSocketImpl.performInitialHandshake(SSLSocketImpl.java:1375)    at sun.security.ssl.SSLSocketImpl.startHandshake(SSLSocketImpl.java:1403)    at sun.security.ssl.SSLSocketImpl.startHandshake(SSLSocketImpl.java:1387)    at sun.net.www.protocol.https.HttpsClient.afterConnect(HttpsClient.java:559)    at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.connect(AbstractDelegateHttpsURLConnection.java:185)    at sun.net.www.protocol.http.HttpURLConnection.getInputStream0(HttpURLConnection.java:1512)    at sun.net.www.protocol.http.HttpURLConnection.getInputStream(HttpURLConnection.java:1440)    at sun.net.www.protocol.https.HttpsURLConnectionImpl.getInputStream(HttpsURLConnectionImpl.java:254)    at org.jasig.cas.client.util.CommonUtils.getResponseFromServer(CommonUtils.java:311)    at org.jasig.cas.client.util.CommonUtils.getResponseFromServer(CommonUtils.java:291)    at org.jasig.cas.client.validation.AbstractCasProtocolUrlBasedTicketValidator.retrieveResponseFromServer(AbstractCasProtocolUrlBasedTicketValidator.java:32)    at org.jasig.cas.client.validation.AbstractUrlBasedTicketValidator.validate(AbstractUrlBasedTicketValidator.java:187)    at org.jasig.cas.client.validation.AbstractTicketValidationFilter.doFilter(AbstractTicketValidationFilter.java:164)    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241)    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)    at org.jasig.cas.client.authentication.AuthenticationFilter.doFilter(AuthenticationFilter.java:102)    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241)    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)    at org.jasig.cas.client.session.SingleSignOutFilter.doFilter(SingleSignOutFilter.java:65)    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241)    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)    at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:220)    at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:122)    at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:505)    at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:170)    at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:103)    at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:956)    at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:116)    at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:423)    at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1079)    at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:625)    at org.apache.tomcat.util.net.AprEndpoint$SocketProcessor.doRun(AprEndpoint.java:2522)    at org.apache.tomcat.util.net.AprEndpoint$SocketProcessor.run(AprEndpoint.java:2511)    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)    at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)    at java.lang.Thread.run(Thread.java:745)Caused by: sun.security.validator.ValidatorException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target    at sun.security.validator.PKIXValidator.doBuild(PKIXValidator.java:387)    at sun.security.validator.PKIXValidator.engineValidate(PKIXValidator.java:292)    at sun.security.validator.Validator.validate(Validator.java:260)    at sun.security.ssl.X509TrustManagerImpl.validate(X509TrustManagerImpl.java:324)    at sun.security.ssl.X509TrustManagerImpl.checkTrusted(X509TrustManagerImpl.java:229)    at sun.security.ssl.X509TrustManagerImpl.checkServerTrusted(X509TrustManagerImpl.java:124)    at sun.security.ssl.ClientHandshaker.serverCertificate(ClientHandshaker.java:1488)    ... 41 moreCaused by: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target    at sun.security.provider.certpath.SunCertPathBuilder.build(SunCertPathBuilder.java:146)    at sun.security.provider.certpath.SunCertPathBuilder.engineBuild(SunCertPathBuilder.java:131)    at java.security.cert.CertPathBuilder.build(CertPathBuilder.java:280)    at sun.security.validator.PKIXValidator.doBuild(PKIXValidator.java:382)    ... 47 more

　　2、客户端中web.xml的casServerUrlPrefix配置错误

java.lang.RuntimeException: java.io.FileNotFoundException: https://localhost:8443/serviceValidate?ticket=ST-1-1HUXO9iETnaNI2jbuvqK-cas01.example.org&service=http%3A%2F%2Flocalhost%3A8080%2FCasClient%2FIndex.jsp    org.jasig.cas.client.util.CommonUtils.getResponseFromServer(CommonUtils.java:328)    org.jasig.cas.client.util.CommonUtils.getResponseFromServer(CommonUtils.java:291)    org.jasig.cas.client.validation.AbstractCasProtocolUrlBasedTicketValidator.retrieveResponseFromServer(AbstractCasProtocolUrlBasedTicketValidator.java:32)    org.jasig.cas.client.validation.AbstractUrlBasedTicketValidator.validate(AbstractUrlBasedTicketValidator.java:187)    org.jasig.cas.client.validation.AbstractTicketValidationFilter.doFilter(AbstractTicketValidationFilter.java:164)    org.jasig.cas.client.authentication.AuthenticationFilter.doFilter(AuthenticationFilter.java:102)root cause java.io.FileNotFoundException: https://localhost:8443/serviceValidate?ticket=ST-1-1HUXO9iETnaNI2jbuvqK-cas01.example.org&service=http%3A%2F%2Flocalhost%3A8080%2FCasClient%2FIndex.jsp    sun.net.www.protocol.http.HttpURLConnection.getInputStream0(HttpURLConnection.java:1835)    sun.net.www.protocol.http.HttpURLConnection.getInputStream(HttpURLConnection.java:1440)    sun.net.www.protocol.https.HttpsURLConnectionImpl.getInputStream(HttpsURLConnectionImpl.java:254)    org.jasig.cas.client.util.CommonUtils.getResponseFromServer(CommonUtils.java:311)    org.jasig.cas.client.util.CommonUtils.getResponseFromServer(CommonUtils.java:291)    org.jasig.cas.client.validation.AbstractCasProtocolUrlBasedTicketValidator.retrieveResponseFromServer(AbstractCasProtocolUrlBasedTicketValidator.java:32)    org.jasig.cas.client.validation.AbstractUrlBasedTicketValidator.validate(AbstractUrlBasedTicketValidator.java:187)    org.jasig.cas.client.validation.AbstractTicketValidationFilter.doFilter(AbstractTicketValidationFilter.java:164)    org.jasig.cas.client.authentication.AuthenticationFilter.doFilter(AuthenticationFilter.java:102)

　　正确的应为：

　　

　　3、缺少数据库连接包

　　　　缺少cas-server-support-jdbc-4.0.0.jar、mysql-connector-java-5.1.21.jar、c3p0-0.9.1.2.jar包（在cas-server-4.0.0-release.zip下的modules目录可以找到）

　　

2015-11-10 09:26:24,484 INFO [org.jasig.cas.services.DefaultServicesManagerImpl] - <Loaded 1 services.>2015-11-10 09:26:24,812 ERROR [org.springframework.web.context.ContextLoader] - <Context initialization failed>org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'centralAuthenticationService' defined in ServletContext resource [/WEB-INF/spring-configuration/applicationContext.xml]: Cannot resolve reference to bean 'authenticationManager' while setting constructor argument; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'authenticationManager' defined in ServletContext resource [/WEB-INF/deployerConfigContext.xml]: Cannot resolve reference to bean 'dbAuthHandler' while setting constructor argument; nested exception is org.springframework.beans.factory.CannotLoadBeanClassException: Cannot find class [org.jasig.cas.adaptors.jdbc.QueryDatabaseAuthenticationHandler] for bean with name 'dbAuthHandler' defined in ServletContext resource [/WEB-INF/deployerConfigContext.xml]; nested exception is java.lang.ClassNotFoundException: org.jasig.cas.adaptors.jdbc.QueryDatabaseAuthenticationHandler    at org.springframework.beans.factory.support.BeanDefinitionValueResolver.resolveReference(BeanDefinitionValueResolver.java:326)    at org.springframework.beans.factory.support.BeanDefinitionValueResolver.resolveValueIfNecessary(BeanDefinitionValueResolver.java:107)    at org.springframework.beans.factory.support.ConstructorResolver.resolveConstructorArguments(ConstructorResolver.java:623)    at org.springframework.beans.factory.support.ConstructorResolver.autowireConstructor(ConstructorResolver.java:148)    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.autowireConstructor(AbstractAutowireCapableBeanFactory.java:1075)    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBeanInstance(AbstractAutowireCapableBeanFactory.java:979)    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:487)    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:458)    at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:296)    at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:223)    at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:293)    at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:194)    at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:628)    at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:932)    at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:479)    at org.springframework.web.context.ContextLoader.configureAndRefreshWebApplicationContext(ContextLoader.java:389)    at org.springframework.web.context.ContextLoader.initWebApplicationContext(ContextLoader.java:294)    at org.springframework.web.context.ContextLoaderListener.contextInitialized(ContextLoaderListener.java:112)    at org.jasig.cas.web.init.SafeContextLoaderListener.contextInitialized(SafeContextLoaderListener.java:75)    at org.apache.catalina.core.StandardContext.listenerStart(StandardContext.java:5003)    at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5517)    at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150)    at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:901)    at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:877)    at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:652)    at org.apache.catalina.startup.HostConfig.deployWAR(HostConfig.java:1095)    at org.apache.catalina.startup.HostConfig$DeployWar.run(HostConfig.java:1960)    at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)    at java.util.concurrent.FutureTask.run(FutureTask.java:266)    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)    at java.lang.Thread.run(Thread.java:745)Caused by: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'authenticationManager' defined in ServletContext resource [/WEB-INF/deployerConfigContext.xml]: Cannot resolve reference to bean 'dbAuthHandler' while setting constructor argument; nested exception is org.springframework.beans.factory.CannotLoadBeanClassException: Cannot find class [org.jasig.cas.adaptors.jdbc.QueryDatabaseAuthenticationHandler] for bean with name 'dbAuthHandler' defined in ServletContext resource [/WEB-INF/deployerConfigContext.xml]; nested exception is java.lang.ClassNotFoundException: org.jasig.cas.adaptors.jdbc.QueryDatabaseAuthenticationHandler    at org.springframework.beans.factory.support.BeanDefinitionValueResolver.resolveReference(BeanDefinitionValueResolver.java:326)    at org.springframework.beans.factory.support.BeanDefinitionValueResolver.resolveValueIfNecessary(BeanDefinitionValueResolver.java:107)    at org.springframework.beans.factory.support.BeanDefinitionValueResolver.resolveManagedMap(BeanDefinitionValueResolver.java:375)    at org.springframework.beans.factory.support.BeanDefinitionValueResolver.resolveValueIfNecessary(BeanDefinitionValueResolver.java:162)    at org.springframework.beans.factory.support.ConstructorResolver.resolveConstructorArguments(ConstructorResolver.java:637)    at org.springframework.beans.factory.support.ConstructorResolver.autowireConstructor(ConstructorResolver.java:148)    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.autowireConstructor(AbstractAutowireCapableBeanFactory.java:1075)    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBeanInstance(AbstractAutowireCapableBeanFactory.java:979)    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:487)    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:458)    at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:296)    at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:223)    at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:293)    at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:194)    at org.springframework.beans.factory.support.BeanDefinitionValueResolver.resolveReference(BeanDefinitionValueResolver.java:320)    ... 31 more

　　4、由于创建证书的域名（创建证书时的名字与姓氏）和在应用中配置的cas服务域名不一致导致

　　

java.lang.RuntimeException: javax.net.ssl.SSLHandshakeException: java.security.cert.CertificateException: No name matching sso.castest.com found    org.jasig.cas.client.util.CommonUtils.getResponseFromServer(CommonUtils.java:328)    org.jasig.cas.client.util.CommonUtils.getResponseFromServer(CommonUtils.java:291)    org.jasig.cas.client.validation.AbstractCasProtocolUrlBasedTicketValidator.retrieveResponseFromServer(AbstractCasProtocolUrlBasedTicketValidator.java:32)    org.jasig.cas.client.validation.AbstractUrlBasedTicketValidator.validate(AbstractUrlBasedTicketValidator.java:187)    org.jasig.cas.client.validation.AbstractTicketValidationFilter.doFilter(AbstractTicketValidationFilter.java:164)    org.jasig.cas.client.authentication.AuthenticationFilter.doFilter(AuthenticationFilter.java:102)root cause javax.net.ssl.SSLHandshakeException: java.security.cert.CertificateException: No name matching sso.castest.com found    sun.security.ssl.Alerts.getSSLException(Alerts.java:192)    sun.security.ssl.SSLSocketImpl.fatal(SSLSocketImpl.java:1949)    sun.security.ssl.Handshaker.fatalSE(Handshaker.java:302)    sun.security.ssl.Handshaker.fatalSE(Handshaker.java:296)    sun.security.ssl.ClientHandshaker.serverCertificate(ClientHandshaker.java:1506)    sun.security.ssl.ClientHandshaker.processMessage(ClientHandshaker.java:216)    sun.security.ssl.Handshaker.processLoop(Handshaker.java:979)    sun.security.ssl.Handshaker.process_record(Handshaker.java:914)    sun.security.ssl.SSLSocketImpl.readRecord(SSLSocketImpl.java:1062)    sun.security.ssl.SSLSocketImpl.performInitialHandshake(SSLSocketImpl.java:1375)    sun.security.ssl.SSLSocketImpl.startHandshake(SSLSocketImpl.java:1403)    sun.security.ssl.SSLSocketImpl.startHandshake(SSLSocketImpl.java:1387)    sun.net.www.protocol.https.HttpsClient.afterConnect(HttpsClient.java:559)    sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.connect(AbstractDelegateHttpsURLConnection.java:185)    sun.net.www.protocol.http.HttpURLConnection.getInputStream0(HttpURLConnection.java:1512)    sun.net.www.protocol.http.HttpURLConnection.getInputStream(HttpURLConnection.java:1440)    sun.net.www.protocol.https.HttpsURLConnectionImpl.getInputStream(HttpsURLConnectionImpl.java:254)    org.jasig.cas.client.util.CommonUtils.getResponseFromServer(CommonUtils.java:311)    org.jasig.cas.client.util.CommonUtils.getResponseFromServer(CommonUtils.java:291)    org.jasig.cas.client.validation.AbstractCasProtocolUrlBasedTicketValidator.retrieveResponseFromServer(AbstractCasProtocolUrlBasedTicketValidator.java:32)    org.jasig.cas.client.validation.AbstractUrlBasedTicketValidator.validate(AbstractUrlBasedTicketValidator.java:187)    org.jasig.cas.client.validation.AbstractTicketValidationFilter.doFilter(AbstractTicketValidationFilter.java:164)    org.jasig.cas.client.authentication.AuthenticationFilter.doFilter(AuthenticationFilter.java:102)root cause java.security.cert.CertificateException: No name matching sso.castest.com found    sun.security.util.HostnameChecker.matchDNS(HostnameChecker.java:221)    sun.security.util.HostnameChecker.match(HostnameChecker.java:95)    sun.security.ssl.X509TrustManagerImpl.checkIdentity(X509TrustManagerImpl.java:455)    sun.security.ssl.X509TrustManagerImpl.checkIdentity(X509TrustManagerImpl.java:436)    sun.security.ssl.X509TrustManagerImpl.checkTrusted(X509TrustManagerImpl.java:200)    sun.security.ssl.X509TrustManagerImpl.checkServerTrusted(X509TrustManagerImpl.java:124)    sun.security.ssl.ClientHandshaker.serverCertificate(ClientHandshaker.java:1488)    sun.security.ssl.ClientHandshaker.processMessage(ClientHandshaker.java:216)    sun.security.ssl.Handshaker.processLoop(Handshaker.java:979)    sun.security.ssl.Handshaker.process_record(Handshaker.java:914)    sun.security.ssl.SSLSocketImpl.readRecord(SSLSocketImpl.java:1062)    sun.security.ssl.SSLSocketImpl.performInitialHandshake(SSLSocketImpl.java:1375)    sun.security.ssl.SSLSocketImpl.startHandshake(SSLSocketImpl.java:1403)    sun.security.ssl.SSLSocketImpl.startHandshake(SSLSocketImpl.java:1387)    sun.net.www.protocol.https.HttpsClient.afterConnect(HttpsClient.java:559)    sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.connect(AbstractDelegateHttpsURLConnection.java:185)    sun.net.www.protocol.http.HttpURLConnection.getInputStream0(HttpURLConnection.java:1512)    sun.net.www.protocol.http.HttpURLConnection.getInputStream(HttpURLConnection.java:1440)    sun.net.www.protocol.https.HttpsURLConnectionImpl.getInputStream(HttpsURLConnectionImpl.java:254)    org.jasig.cas.client.util.CommonUtils.getResponseFromServer(CommonUtils.java:311)    org.jasig.cas.client.util.CommonUtils.getResponseFromServer(CommonUtils.java:291)    org.jasig.cas.client.validation.AbstractCasProtocolUrlBasedTicketValidator.retrieveResponseFromServer(AbstractCasProtocolUrlBasedTicketValidator.java:32)    org.jasig.cas.client.validation.AbstractUrlBasedTicketValidator.validate(AbstractUrlBasedTicketValidator.java:187)    org.jasig.cas.client.validation.AbstractTicketValidationFilter.doFilter(AbstractTicketValidationFilter.java:164)    org.jasig.cas.client.authentication.AuthenticationFilter.doFilter(AuthenticationFilter.java:102)

　　三、参考文献

http://ykt.wh.sdu.edu.cn/desktop/doc/introduction.html

http://steven-wiki.readthedocs.org/en/latest/security/cas-tomcat/

http://blog.csdn.net/frinder/article/details/7969925

mysql配置：

　　http://steven-wiki.readthedocs.org/en/latest/security/cas-tomcat/

　　http://www.cnblogs.com/chenyongjun/p/4770107.html

使用 CAS 在 Tomcat 中实现单点登录：

　　http://www.ibm.com/developerworks/cn/opensource/os-cn-cas/