#!/bin/bash
 # 部署java环境
java_install(){
 apt install openjdk-11-jdk -y
 }
 java_config(){
 cat > /etc/profile.d/java.sh <<-eof
 export JAVA_HOME=/usr/lib/jvm/java-11-openjdk-amd64
 export JAVA_BIN=\$JAVA_HOME/bin
 export PATH=\$JAVA_BIN:\$PATH
 eof
 source /etc/profile.d/java.sh
 }
 get_tomcat(){
 [ -d /data/softs ] || mkdir -p /data/softs
 if [ ! -f /data/softs/apache-tomcat-9.0.97.tar.gz ]; then
 cd /data/softs
 wget https://dlcdn.apache.org/tomcat/tomcat-9/v9.0.97/bin/apache-tomcat
9.0.97.tar.gz
 fi
 }
 untar_tomcat(){
 [ -d /data/server/tomcat ] && rm -rf /data/server/tomcat* \
 || mkdir -p /data/server
 tar xf /data/softs/apache-tomcat-9.0.97.tar.gz -C /data/server/
 ln -sv /data/server/apache-tomcat-9.0.97 /data/server/tomcat
 echo "Tomcat jsp page from $(hostname)<br />" > 
/data/server/tomcat/webapps/ROOT/test.jsp
 echo 'SessionID = <span style="color:blue"><%=session.getId() %>' >> 
/data/server/tomcat/webapps/ROOT/test.jsp
sed -i "/webapps/s/localhost/sswang.magedu.com/" 
/data/server/tomcat/conf/server.xml
 }
 tomcat_config(){
 cat > /etc/profile.d/tomcat.sh <<- eof
 export CATALINA_BASE=/data/server/tomcat
 export CATALINA_HOME=/data/server/tomcat
 export CATALINA_TMPDIR=\$CATALINA_HOME/temp
 export CLASSPATH=\$CATALINA_HOME/bin/bootstrap.jar:\$CATALINA_HOME/bin/tomcat
juli.jar
 export PATH=\$CATALINA_HOME/bin:\$PATH
 eof
 source /etc/profile.d/tomcat.sh
 }
 tomcat_user(){
 userdel -r tomcat >/dev/null 2>&1
 useradd -r -s /sbin/nologin tomcat
 chown tomcat:tomcat -R /data/server/tomcat/*
 }
 tomcat_service(){
 cat > /lib/systemd/system/tomcat.service <<-eof
 [Unit]
 Description=Tomcat
 After=syslog.target network.target
 [Service]
 Type=forking
 # Environment=JAVA_HOME=/usr/lib/jvm/java-11-openjdk-amd64/
 ExecStart=/data/server/tomcat/bin/startup.sh
 ExecStop=/data/server/tomcat/bin/shutdown.sh
 PrivateTmp=true
 User=tomcat
 Group=tomcat
 [Install]
 WantedBy=multi-user.target
 eof
 systemctl daemon-reload
 systemctl enable --now tomcat
 }
 main(){
 java_install
 java_config
 get_tomcat
 untar_tomcat
 tomcat_config
 tomcat_user
 tomcat_service
 }
 main