Linux installation JDK

1 Create a new two folder one to store the installation files, one to store the extracted files

Mkdir-p/export/software   // store installation files mkdir-p/export/servers     // store extracted files

2 Place the JDK files in the software folder on the server and extract them into the servers folder

Cd/export/software     //tar-zxvf jdk-8u141-linux-x64.tar.gz-c/export/servers/    //  Unzip

3 Uninstall the JDK that comes with your system

Rpm-qa | grep java      // search rpm-e--nodeps java-1.7.  0-openjdk-1.7. 0.131-2.6. 9.0. el6_8.x86_64   // uninstall rpm-e--nodeps tzdata-java-2016j-1  -e--nodeps java-1.6. 0-openjdk-1.6. 0.41-1.13. 13.1. el6_8.x86_64

4 editing the configuration file declaration environment variables

Vim/etc/profile       // Edit configuration file export JAVA_HOME=/EXPORT/SERVERS/JDK1.  8. 0_141     // end add export path= $PATH: $JAVA _home/bin

5 Recompile

Source/etc/profile      //  recompile java-version

Linux installation JDK