How to install Oracle JDK with Centos7 source ?, Centos7oracle

How to install Oracle JDK with Centos7 source ?, Centos7oracle
How to install Oracle JDK with Centos7 source?

Replace Centos7 with Alibaba Source

Back up

Cd/etc/yum. repos. d/

Mv CentOS-Base.repo/etc/yum. repos. d/CentOS-Base.repo.backup download Ali source repo File

Wget http://mirrors.aliyun.com/repo/Centos-7.repo insert Code

Mv Centos-7.repo CentOS-Base.repo update system

Yum clean all

Yum makecache

Restart the system using yum update

Init 6

Uninstall openjdk and install the jdk of Oracle

1.download jdk-8u161-linux-x64.tar.gz (download from the oracle official website)

2. Use xshell to upload jdk to/usr/local/java in Centos7

Cd/usr/local/mkdir java upload jdk-8u161-linux-x64.tar.gz

3. Uninstall openjdk

[1] Use rpm-qa | grep java to query the system comes with jdk [2] unmount non-noarch file 1), rpm-e -- nodeps java-1.8.0-openjdk-1.8.0.131-11.b12.el7.x86_64 2), rpm-e -- nodeps java-1.8.0-openjdk-headless-1.8.0.131-11.b12.el7.x86_64 [3] rpm-qa | grep java command to query whether to delete

4. Install sun's jdk

[1] cd/usr/local/java/[2] tar xvf jdk-8u161-linux-x64.tar.gz [3] rm-f jdk-8u161-linux-x64.tar.gz [4] edit content in/etc/profile 1) run vim/etc/profile and press I to enter the insert mode. Add the environment variable export JAVA_HOME =/usr/local/java/jdk1.8.0 _ 161 export CLASSPATH = to the end of the file.: $ JAVA_HOME/lib/dt. jar: $ JAVA_HOME/lib/tools. jar export PATH = $ PATH: $ JAVA_HOME/bin 2) Save and exit Mode 1: Press ESC and enter: wq Mode 2: press shift and press Z [5] twice to restart the profile file source/etc/profile [6] To test jdk 1), javac 2), java-version