1.安裝java：

準備好安裝包：jdk-8u201-linux-x64.rpm

rpm -ivh jdk-8u201-linux-x64.rpm

java -version   驗證安裝成功

2.安裝tomcat：

準備好安裝包：apache-tomcat-9.0.17.tar.gz

tar -xzvf apache-tomcat-9.0.17.tar.gz

cd apache-tomcat-9.0.17/

sh bin/startup.sh  開啟tomcat

netstat -nplt |grep 8080    也可在ip:8080頁面查看   驗證安裝成功

sh bin/shutdown.sh 關閉

如果有幾個tomcat  改 conf/server.xml 三個端口

<Connector port="8080" protocol="HTTP/1.1"

               connectionTimeout="20000"

               redirectPort="8443" URIEncoding="UTF-8"/>

<Server port="8005" shutdown="SHUTDOWN">

<Connector port="8009" protocol="AJP/1.3" redirectPort="8443" />