详细记录CAS 5.0.0的安装及配置过程，请注意:本文都是在root用户权限下执行，在生产环境不建议使用root权限。
环境：CentOS 6.8 x86_64
1.JDK及maven的安装
tar zxf jdk-8u101-linux-x64.tar.gz
mv jdk1.8.0_101 /usr/local
#4.1.10及以下版本使用
#tar zxf apache-maven-3.3.9-bin.tar.gz
#mv apache-maven-3.3.9 /usr/local
cat<< EOF >>/etc/profile
export Java_HOME=/usr/local/jdk1.8.0_101
export CLASSPATH=.:$JAVA_HOME/lib/dt.jar:$JAVA_HOME/lib/tools.jar
#export PATH=$JAVA_HOME/bin:$PATH:/usr/local/apache-maven-3.3.9/bin
export PATH=$JAVA_HOME/bin:$PATH
EOF
source /etc/profile
2.tomcat准备
tomcat必须要8.0以上，否则可能报
Caused by: java.lang.ClassNotFoundException: org.apache.catalina.valves.rewrite.RewriteValve
at org.apache.catalina.loader.WebappClassLoaderBase.loadClass(WebappClassLoaderBase.java:1892) ~[catalina.jar:7.0.73]
at org.apache.catalina.loader.WebappClassLoaderBase.loadClass(WebappClassLoaderBase.java:1735) ~[catalina.jar:7.0.73]
echo "127.0.0.1 $HOSTNAME">>/etc/hosts
tar zxf apache-tomcat-8.5.8.tar.gz
mv apache-tomcat-8.5.8 /usr/local
ln -s /usr/local/apache-tomcat-8.5.8 /usr/local/tomcat
3.文件下载
wget https://github.com/apereo/cas-gradle-overlay-template/archive/master.zip
unzip master.zip
cd cas-gradle-overlay-template-master
修改gradle下载路径，否则可能报错
vim gradle/wrapper/gradle-wrapper.properties
#distributionUrl=https\://services.gradle.org/distributions/gradle-3.1-bin.zip
distributionUrl=https\://downloads.gradle.org/distributions/gradle-3.1-bin.zip
否则可能下载报错
4.复制CAS配置文件,注意CAS配置文件版本之间不能通用
cd etc
cp -rf cas /etc/
cd ..
5.对CAS进行打包
./gradlew clean build
6.部署cas.was
cp cas/build/libs/cas.war /usr/local/tomcat/webapps/
7.启动tomcat
/usr/local/tomcat/bin/catalina.sh start
并查看tomcat的报错信息
tail -f /usr/local/tomcat/logs/catalina.out
8.查看下效果
CAS默认登录账号密码
caSUSEr
Mellon
9.根据CAS建议，打开tomcat的SSL
mkdir /etc/cas/key
cd /etc/cas/key
keytool -genkey -alias cas --keyalg RSA -keystore cas.keystore -validity 3650
keytool -export -file cas.crt -alias cas -keystore cas.keystore
keytool -importcert -alias cas -file cas.crt -keystore "${JAVA_HOME}/jre/lib/security/cacerts" -storepass changeit
配置tomcat打开SSL
cp /usr/local/tomcat/conf/server.xml /usr/local/tomcat/conf/server.xml.ori
vim /usr/local/tomcat/conf/server.xml
增加,注意大小写
<Connector port="8443" protocol="org.apache.coyote.http11.Http11NioProtocol"
maxThreads="150" SSLEnabled="true" scheme="https" secure="true"
clientAuth="false" sslProtocol="TLS"
keystoreFile="/etc/cas/key/cas.keystore"
keystorePass="123456" >
</Connector>
看截图
现在重新启动tomcat试试
/usr/local/tomcat/bin/catalina.sh stop
/usr/local/tomcat/bin/catalina.sh start
启动的时候关注下日志文件，看是否报错
