Linux server configuration and installation of Java, Tomcat server, javatomcat

Linux server configuration and installation of Java, Tomcat server, javatomcat

System: Ubuntu 16.04 dev_desktop

1. install and configure environment variables in Java

Download the latest JDK: http://www.oracle.com/technetwork/java/javase/downloads/index.html from Java Official Website

Download jdk package jdk-8u144-linux-x64.tar.gz

(2) decompress the compressed package and copy it to the/usr/lib directory.

　　　　

tar -zxvf jdk-8u144-linux-x64.tar.gz sudo cp -r ./jdk1.8.0_144/ /usr/lib

(3) edit the profile configuration environment variable

Use vim to open/etc/profile

　　　

sudo vim /etc/profile

　　　
Add the following code at the end of the file, configure the environment variable, save and exit

Export JAVA_HOME =/usr/lib/jdk1.8.0 _ 144

Export JRE_HOME =$ {JAVA_HOME}/jre
Export CLASSPATH =. :$ {JAVA_HOME}/lib :$ {JRE_HOME}/lib

Export PATH =$ {JAVA_HOME}/bin: $ PATH

(4) Make the configuration file take effect

 

source /etc/profile

 

(5) restart the computer and enter java-version in the terminal. When the version information is displayed, the installation is successful.

Java version "1.8.0 _ 144"
Java (TM) SE Runtime Environment (build 1.8.0 _ 144-b01)
Java HotSpot (TM) 64-Bit Server VM (build 25.144-b01, mixed mode)

 

2. Install Tomact

　　Download the latest tomcat http://tomcat.apache.org/download-80.cgi from tomcat Official Website

Compressed package tar.gz

(2) decompress the package and copy it to the/opt folder.

　

tar -zxvf apache-tomcat-8.5.16.tar.gzsudo cp -r ./apache-tomcat-8.5.16 /opt/

 

(3) Configure tomcat, go to the apache-tomcat-8.5.16 folder, and use vim to edit the./bin/startup. sh file.

　　　　

cd /opt/apache-tomcat-8.5.16/sudo vim ./bin/startup.sh

Insert the following code before the last line of the file:

JAVA_HOME=/usr/lib/jdk1.8.0_144JRE_HOME=$JAVA_HOME/jrePATH=$PATH:$JAVA_HOME/bin:$JRE_HOMECLASSPATH=.:$JRE_HOME/lib/rt.jar:$JAVA_HOME/lib/dt.jar:$JAVA_HOME/lib/tools.jarTOMCAT_HOME=/opt/apache-tomcat-8.5.16

JAVA_HOME is the path when java is just installed.

Note that the Code must be inserted before exec "$ PRGDIR"/"$ EXECUTABLE" start "$.

(4) Start and close tomcat.

　　　　

sudo ./bin/startup.shsudo ./bin/shutdown.sh

 

(5) After the startup is successful, enter localhost: 8080 in the browser. If the tomcat homepage is displayed, the installation is successful. when deploying a project, you only need to copy the file package to/opt/apache-tomcat-8.5.16/webapps.