Ubuntu|Ubuntu JDK 8 安装

下载并解压 JDK
Oracle 官网下载地址:
http://www.oracle.com/technetwork/java/javase/downloads/index.html
【Ubuntu|Ubuntu JDK 8 安装】我下载的是 ** jdk-8u131-linux-x64.tar.gz **:

wget -O "jdk-8u131-linux-x64.tar.gz" http://download.oracle.com/otn-pub/java/jdk/8u131-b11/d54c1d3a095b4ff2b6607d096fa80163/jdk-8u131-linux-x64.tar.gz

解压到指定目录下,我在此处解压到了 /usr/lib/jvm:
mkdir /usr/lib/jvm tar -xzf jdk-8u131-linux-x64.tar.gz -C /usr/lib/jvm

配置环境变量
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

查看JDK版本
> java -version 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)

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