CentOS7.0 installation JDK1.8

Http://www.centoscn.com/image-text/install/2015/0311/4856.html

JDK Download Address:

$> wget http://jjbig.jb51.net:8080/201704/tools/jdk-linux-x64.tar.gz

1. Check the JDK version in the system [Java] view plaincopy $>java-version java version "1.7.0_"
OpenJDK Runtime Environment (IcedTea6 1.11.1) (rhel-1.45.1.11.1.el6-x86_64)
OpenJDK 64-bit Server VM (build 20.0-b12, Mixed mode)

2. Test JDK installation package [Java] view Plaincopy $>rpm-qa | grep Java Avapackages-tools-3.4.1-6.el7_0.noarch
Tzdata-java-2014i-1.el7.noarch
Java-1.7.0-openjdk-headless-1.7.0.71-2.5.3.1.el7_0.x86_64
Java-1.7.0-openjdk-1.7.0.71-2.5.3.1.el7_0.x86_64
Python-javapackages-3.4.1-6.el7_0.noarch

3. Uninstall OpenJDK [Java]  view plaincopy   $>rpm -e --nodeps  tzdata-java-2014i-1.el7.noarch   $>rpm -e --nodeps  java-1.7.0-openjdk-headless-1.7.0.71-2.5.3.1.el7_0.x86_64   $>rpm -e --nodeps  java-1.7.0-openjdk-1.7.0.71-2.5.3.1.el7_0.x86_64   4. Install the new jdk1.8.0_31

Extract tar.gz [Java] view plaincopy $>mkdir-p/USR/LIB/JVM $>tar-zxvf jdk1.8.0_31.tar.gz-c/usr/lib/j VM 5. Set environment variable [Java] view plaincopy $> Vi/etc/profile at the end add: [Java] view plaincopy export J AVA_HOME=/USR/LIB/JVM/JDK1.8.0_31 Export JRE_HOME=${JAVA_HOME}/JRE Export Classpath=.:${java_home}/lib:${jre_home} /lib Export Path=${java_home}/bin: $PATH
6. Executive Profile [Java] view Plaincopy $>source/etc/profile

7. Check the newly installed JDK [Java] view Plaincopy $>java-version