Centos7.5 configuration java environment installation tomcat explanation

Tomcat is a web server software based on Java language. This article mainly introduces how to configure Java environment and install Tomcat on CentOS 7.5.

1. Install Java environment:

Visit the orcal official website to download the JDK rpm package: https://www.oracle.com/technetwork/java/javase/downloads/jdk8-downloads-2133151.html

After downloading, execute: rpm -ivh jdk-8u161-linux-x64.rpm to install. By default, it will be installed in the /usr/java directory.

After the installation is complete, modify the /etc/profile file and add the Java environment variables:

export JAVA_HOME=/usr/java/jdk1.8.0_161/export CLASSPATH=.:$JAVA_HOME/jre/lib/rt.jar:$JAVA_HOME/lib/dt.jar:$JAVA_HOME/lib/tools.jarexport PATH=$PATH:$JAVA_HOME/bin

After adding, execute: source /etc/profile to make the configuration effective

Execute: java -version to verify whether the configuration is successful. The following interface appears to indicate that the configuration is successful.

2. Install Tomcat

Visit the Apache official website and download the tomcat source package: https://tomcat.apache.org/download-80.cgi

When downloading, be sure to select the source package in Binary Distributions

After downloading, unzip it and copy the contents of the unzipped directory to /usr/local/tomcat (the /usr/local/tomcat directory needs to be created manually)

tar -xf apache-tomcat-8.5.38.tar.gz
mkdir /usr/local/tomcat8
mv apache-tomcat-8.5.38/* /usr/local/tomcat8/
cd /usr/local/tomcat8/bin
./startup.sh 

At this point, Tomcat has been installed successfully, visit to test:

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