Ubuntu 中 java 环境的编译安装

 先在 https://www.oracle.com/technetwork/java/javase/downloads/jdk8-downloads-2133151.html  获得 java 包的链接，再将下面的脚本中的 url 变量替换为 获得的链接即可使用该脚本直接安装

#!/bin/bash
echo 1
profile_path="/etc/profile";content=$(cat ${profile_path}|grep JAVA_HOME);echo $content
echo $content
echo 2
url="https://download.oracle.com/otn-pub/java/jdk/8u201-b09/42970487e3af4f5aa5bca3f542482c60/jdk-8u201-linux-x64.tar.gz"
echo 3
if [ "x$content" == "x" ];then
    echo "开始"
    wget --no-check-certificate --no-cookies --header "Cookie: oraclelicense=accept-securebackup-cookie" $url

    java_name=$(echo $url |awk -F / '{print $NF}')
    echo ${java_name}
    java_name=$(echo ${java_name} | awk -F . '{print $1}')
    echo ${java_name}.tar.gz
    tar -zxvf ${java_name}.tar.gz
    java_name="jdk1.8.0_201"
    mkdir -p /usr/lib/jvm
    cp -r ${java_name} /usr/lib/jvm/${java_name}


    echo """
export JAVA_HOME="/usr/lib/jvm/${java_name}/bin"
export PATH=\$JAVA_HOME:\$PATH""" >> /etc/profile
    echo "结束"
fi
source /etc/profile
echo 4
exit 0