CentOS installation JDK and Tomcat

1. See if you have installed

java -version

2. Uninstall your own OPENJDK

dnf remove java-1.7.0-openjdk

3. Download the JDK installation package

wget -c http://111.1.50.14/files/7194000006F691AA/download.oracle.com/otn-pub/java/jdk/8u181-b13/96a7b8442fe848ef90c96a2fad6ed6d1/jdk-8u181-linux-x64.rpm

4. Installation

rpm -ivh jdk-8u181-linux-x64.rpm

5. Check if the installation is successful

java -version

Output a bit:

java version "1.8.0_181"Java(TM) SE Runtime Environment (build 1.8.0_181-b13)Java HotSpot(TM) 64-Bit Server VM (build 25.181-b13, mixed mode)

6. Download Tomcat

wget https://mirrors.tuna.tsinghua.edu.cn/apache/tomcat/tomcat-7/v7.0.91/bin/apache-tomcat-7.0.91.tar.gz

7. Unzip

tar zxf apache-tomcat-7.0.91.tar.gz -C /root/xxxx/

8. Create Environment variables

vim /root/.bash_profile

Add the following content:

 export CATALINA_HOME=/root/yuanweipeng/apache-tomcat-7.0.91 export PATH=$CATALINA_HOME/bin:$PATH:$HOME/bin

9. See if the configuration is successful

catalina.sh -version

Output a bit:

commands:  debug             Start Catalina in a debugger  debug -security   Debug Catalina with a security manager  jpda start        Start Catalina under JPDA debugger  run               Start Catalina in the current window  run -security     Start in the current window with security manager  start             Start Catalina in a separate window  start -security   Start in a separate window with security manager  stop              Stop Catalina, waiting up to 5 seconds for the process to end  stop n            Stop Catalina, waiting up to n seconds for the process to end  stop -force       Stop Catalina, wait up to 5 seconds and then use kill -KILL if still running  stop n -force     Stop Catalina, wait up to n seconds and then use kill -KILL if still running  configtest        Run a basic syntax check on server.xml - check exit code for result  version           What version of tomcat are you running?    

10. Start Tomcat

catalina.sh start

Output:

Tomcat started.

11. Firewall add open 8080 port number

firewall-cmd --zone=public --add-port=8080/tcp --permanentpermanent参数代表重启后有效

12. Access to Services

在本机浏览器中输入ip:8080

CentOS installation JDK and Tomcat