[JDK] Linux install JDK source package complete step

[JDK] Linux install JDK source package complete step

jdk version 1, check the system

[root@localhost software]# java -version

display:

openjdk version "1.8.0_102"
OpenJDK Runtime Environment (build 1.8.0_102-b14)
OpenJDK 64-Bit Server VM (build 25.102-b14, mixed mode)

2, detecting the installation package jdk

[root@localhost software]# rpm -qa | grep java`
    java-1.7.0-openjdk-1.7.0.111-2.6.7.8.el7.x86_64
    python-javapackages-3.4.1-11.el7.noarch
    tzdata-java-2016g-2.el7.noarch
    javapackages-tools-3.4.1-11.el7.noarch
    java-1.8.0-openjdk-1.8.0.102-4.b14.el7.x86_64
    java-1.8.0-openjdk-headless-1.8.0.102-4.b14.el7.x86_64
    java-1.7.0-openjdk-headless-1.7.0.111-2.6.7.8.el7.x86_64

3, uninstall openjdk

[root@localhost software]# rpm -e --nodeps tzdata-java-2016g-2.el7.noarch
[root@localhost software]# rpm -e --nodeps java-1.7.0-openjdk-1.7.0.111-2.6.7.8.el7.x86_64
[root@localhost software]# rpm -e --nodeps java-1.7.0-openjdk-headless-1.7.0.111-2.6.7.8.el7.x86_64
[root@localhost software]# rpm -e --nodeps java-1.8.0-openjdk-1.8.0.102-4.b14.el7.x86_64
[root@localhost software]# rpm -e --nodeps java-1.8.0-openjdk-headless-1.8.0.102-4.b14.el7.x86_64

Or use

[root@localhost jvm]# yum remove *openjdk*
之后再次输入rpm -qa | grep java 查看卸载情况：

[root@localhost software]# rpm -qa | grep java
python-javapackages-3.4.1-11.el7.noarch
javapackages-tools-3.4.1-11.el7.noarch

4, install a new jdk

First, the official website to download jdk jdk version you want, after the download is complete will need to install jdk install package into the file specified under Linux system folder, and command to enter the folder:

[root@localhost software]# ll
total 252664
-rw-r--r--. 1 root root  11830603 Jun  9 06:43 alibaba-rocketmq-3.2.6.tar.gz
-rw-r--r--. 1 root root  43399561 Jun  9 06:42 apache-activemq-5.11.1-bin.tar.gz
-rwxrw-rw-. 1 root root 185540433 Apr 21 09:06 jdk-8u131-linux-x64.tar.gz
-rw-r--r--. 1 root root   1547695 Jun  9 06:44 redis-3.2.9.tar.gz
-rw-r--r--. 1 root root  16402010 Jun  9 06:40 zookeeper-3.4.5.tar.gz

Extracting jdk-8u131-linux-x64.tar.gz installation package

[root@localhost software]# mkdir -p /usr/lib/jvm
[root@localhost software]# tar -zxvf jdk-8u131-linux-x64.tar.gz -C /usr/lib/jvm

5, set the environment variable

[root@localhost software]# vim /etc/profile

Add on top:

export JAVA_HOME=/usr/lib/jvm/jdk1.8.0_131  
export JRE_HOME=${JAVA_HOME}/jre  
export CLASSPATH=.:${JAVA_HOME}/lib:${JRE_HOME}/lib  
export  PATH=${JAVA_HOME}/bin:$PATH

6, execution profile file

[root@localhost software]# source /etc/profile

This allows the configuration to take effect immediately without restarting.

7, check the newly installed jdk

[root@localhost software]# java -version

display:

java version "1.8.0_131"
Java(TM) SE Runtime Environment (build 1.8.0_131-b11)
Java HotSpot(TM) 64-Bit Server VM (build 25.131-b11, mixed mode)

So far, the entire installation process is complete.

This paper by the author [David] original, if reproduced without permission, the author reserves the right to pursue liability.