Java 安装

OpenJDK 下载

• How to download and install prebuilt OpenJDK packages
• Archived OpenJDK General-Availability Releases

Java 8 下载

• Java SE 8 Archive Downloads

补充：官方不提供Windows下的zip版本下载

Linux 下安装

1.7

cd ~/download
wget jdk-7u80-linux-x64.tar.gz
mkdir /usr/local/java && cd /usr/local/java
tar xzvf ~/download/jdk-7u80-linux-x64.tar.gz
mv jdk1.7.0_80/ jdk1.7

vi ~/.bash_profile

export JAVA_HOME=/usr/local/java/jdk1.7
export PATH=$PATH:$JAVA_HOME/bin
export CLASSPATH=.:$JAVA_HOME/lib:$JAVA_HOME/jre/lib

source ~/.bash_profile

1.8

cd ~/download
wget jdk-8u231-linux-x64.tar.gz
mkdir /usr/local/java && cd /usr/local/java
tar xzvf ~/download/jdk-8u231-linux-x64.tar.gz
mv jdk1.8.0_231/ jdk1.8

vi ~/.bash_profile

export JAVA_HOME=/usr/local/java/jdk1.8
export PATH=$PATH:$JAVA_HOME/bin
export CLASSPATH=.:$JAVA_HOME/lib:$JAVA_HOME/jre/lib

source ~/.bash_profile