Centos8 安裝Tomcat

安裝OpenJDK

dnf install java-1.8.0-openjdk* -y

下載和安裝Tomcat 9

wget https://www-eu.apache.org/dist/tomcat/tomcat-9/v9.0.36/bin/apache-tomcat-9.0.36.tar.gz -P /tmp
tar -xf /tmp/apache-tomcat-9.0.36.tar.gz -C /usr/local/tomcat/
chown -R root: /usr/local/tomcat/
sh -c 'chmod +x /usr/local/tomcat/apache-tomcat-9.0.36/bin/*.sh'

防火牆開啓端口

firewall-cmd --permanent --zone=public --add-port=8080/tcp
firewall-cmd --reload

將Tomcat設置爲作爲服務運行

在/etc/systemd/system/目錄中創建tomcat.service文件

vi /etc/systemd/system/tomcat.service

[Unit]
Description=Tomcat9 servlet
After=syslog.target network.target

[Service]
Type=forking

User=root
Group=root

Environment="JAVA_HOME=/usr/lib/jvm/jre"
Environment="JAVA_OPTS=-Djava.awt.headless=true"

Environment="CATALINA_BASE=/usr/local/tomcat/apache-tomcat-9.0.36"
Environment="CATALINA_HOME=/usr/local/tomcat/apache-tomcat-9.0.36"
Environment="CATALINA_PID=/usr/local/tomcat/apache-tomcat-9.0.36/temp/tomcat.pid"
Environment="CATALINA_OPTS=-Xms512M -Xmx1024M -server -XX:+UseParallelGC"

ExecStart=/usr/local/tomcat/apache-tomcat-9.0.36/bin/startup.sh
ExecStop=/usr/local/tomcat/apache-tomcat-9.0.36/bin/shutdown.sh

[Install]
WantedBy=multi-user.target

chmod 777 /etc/systemd/system/tomcat.service

通知systemd刷新服務

systemctl daemon-reload

開機啓動 tomcat

systemctl enable tomcat

啓動 tomcat

systemctl start tomcat

打開網址

http://192.168.197.103:8080/

這時候打開管理界面manager webapp是訪問不了的，因爲只允許本機訪問。需要進行下面設置

/usr/local/tomcat/apache-tomcat-9.0.36/conf/tomcat-users.xml 追加下面內容

<tomcat-users>
   <role rolename="manager"/>
   <role rolename="manager-gui"/>
   <role rolename="manager-script"/>  
   <role rolename="manager-status"/>
   <user username="tomcat" password="tomcat" roles="manager,manager-gui,manager-script,manager-status"/>
</tomcat-users>

tomcat爲管理界面賬號

默認情況下，Tomcat Web管理界面配置爲僅允許從本地主機訪問。

打開 /usr/local/tomcat/apache-tomcat-9.0.36/webapps/manager/META-INF/context.xml 文件並註釋下面內容

<!-- <Valve className="org.apache.catalina.valves.RemoteAddrValve"
         allow="127\.\d+\.\d+\.\d+|::1|0:0:0:0:0:0:0:1" /> -->

重啓 tomcat

systemctl restart tomcat

之後管理界面可以登錄