Linux centOS installation JDK and Tomcat tutorial

First download JDK.

Here we use jdk-8u181-linux-x64.tar.gz

Download Tomcat.

Here we use apache-tomcat-8.5.35.tar.gz

Create a Directory

$ cd /
$ mkdir soft
$ cd soft

Put the installation package in soft

You can use the yum command to upload

Install

yum install -y lrzsz

rz Enter to select the file

Install JDK

$ cd /usr
$ mkdir java
$ tar -zxvf jdk-8u181-linux-x64.tar.gz -C /usr/java

After the installation is complete, add the environment variables

$ vim /etc/profile

Add the environment variables at the end

export JAVA_HOME=/usr/java/jdk1.8.0_181
export CLASSPATH=.:${JAVA_HOME}/jre/lib/rt.jar:${JAVA_HOME}/lib/dt.jar:${JAVA_HOME}/lib/tools.jar
export PATH=$PATH:${JAVA_HOME}/bin

Save and exit

$wq

Then execute the command to make the environment variable take effect

$ source /etc/profile

Check whether the configuration is successful

$ java -version 

Install tomcat

$ cd /usr
$ mkdir tomcat
$ tar -zxvf apache-tomcat-8.5.35.tar.gz -C /usr/tomcat

After successful decompression, configure the firewall policy and open the firewall port 8080

$ vim /etc/sysconfig/iptables

If there is no iptables file but iptables-config

Execute the following command

$ iptables -P OUTPUT ACCEPT 
$ service iptables save
$ vim /etc/sysconfig/iptables

Add at the end

# Open port 8080 -A INPUT -m state --state NEW -m tcp -p tcp --dport 8080 -j ACCEPT

Save and exit

$wq

Modify the tomcat configuration and change the local localhost to your own domain name or server IP. Here we use IP

$ vim /usr/tomcat/apache-tomcat-8.5.35/conf/server.xml

Save and exit after modification

Start tomcat

$ sh /usr/tomcat/apache-tomcat-8.5.35/bin/startup.sh

After successful startup

Enter the server IP in the browser: 8080

Jump to the tomcat page and the configuration is successful.

END.

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