如何通过脚本下载和安装Oracle Java？

Question

流行的WebUpd8 团队 PPA没有更新。

它仍然有过时的版本，如 8u45。

我从 Oracle 站点手动下载了 JDK 并替换了它。

有没有办法自动检查Oracle java最新版本并下载它，如果它已经更新了？

我看到主要问题是下载它。我查看了oracle-java8-installer脚本，看到了一些他们从中下载的奇怪链接。

如果不接受许可，则无法直接从 Oracle 站点下载 tarball。安装人员也检查了这一点。但我不太明白如何从命令行接受许可证。

这个脚本可以添加到 cron 中。

以防万一 PPA 永远不会更新，或者如果有这样的延迟。

Answer 1

该脚本与WebUpd8 PPA结合使用。因此首先通过 PPA 安装 Java。

如果 PPA 中有新版本，则通过包管理器安装。同时，该脚本可以安装更新的版本，Oracle 网站上有新版本。

几点考虑

通过 下载一个版本wget，例如：

wget --no-cookies --header \
    "Cookie: oraclelicense=accept-securebackup-cookie" \
    $URL

获取带有 (forlinux-x64和tar.gz)的 URL

URL=$(curl -s http://www.oracle.com/technetwork/java/javase/downloads/jdk8-downloads-2133151.html | \
    awk "/downloads\['/ && ! /demos/ && /\['files'\]/ && /linux-x64/ && /\.tar\.gz/" | \
    grep -o 'http.*\.tar\.gz')

一体

通过 URL获取Oracle Java 8http://www.oracle.com/technetwork/java/javase/downloads/jdk8-downloads-2133151.html

wget --no-cookies --header "Cookie: oraclelicense=accept-securebackup-cookie" \
    $(curl -s http://www.oracle.com/technetwork/java/javase/downloads/jdk8-downloads-2133151.html | \
        awk "/downloads\['/ && ! /demos/ && /\['files'\]/ && /linux-x64/ && /\.tar\.gz/" | \
        grep -o 'http.*\.tar\.gz'\
    )

解释

• /downloads\['/– 我们需要这个downloads区域

• /\['files'\]/– 我们需要这个files区域

• /linux-x64/ – 目标架构

  你可以适应。

• /\.tar\.gz/ – 文件格式

  你可以适应。

  如果你这样做，不要忘记tar.gz在grep -o 'http.*\.tar\.gz'

• ! /demos/ – 没有演示

Oracle Java 8、x64、tar.gz 的脚本

#!/bin/bash
major_version="8"
target="/usr/lib/jvm/java-8-oracle"
arch="linux-x64"

# This URL is for the major version 8.
download_page="http://www.oracle.com/technetwork/java/javase/downloads/jdk8-downloads-2133151.html"

download_url=$(curl -s "$download_page" | \
        awk "/downloads\['/ && ! /demos/ && /\['files'\]/ && /$arch/ && /\.tar\.gz/" | \
        grep -o 'http.*\.tar\.gz')

server=$(awk -Fjdk-"$major_version"u '{split($2,a,/-/); print a[1]}' <<< "$download_url")
local=$("$target"/bin/java -version 2>&1 | awk -F_ '/java version/ {gsub(/"/,""); print $2}')

[ "$local" == "" ] && local=0

filename=$(awk -F'\/' '{print $NF}' <<< "$download_url")

[ "$server" -gt "$local" ] && wget -q -P "/tmp" --no-cookies --show-progress --header \
    "Cookie: oraclelicense=accept-securebackup-cookie" \
    "$download_url" 

if [ -f "$filename" ]; then
    mkdir -p "$target"
    tar -xf "$filename" --strip 1 -C "$target"
fi

exit 0

有用

使用以下命令列出所有架构和文件格式：

curl -s http://www.oracle.com/technetwork/java/javase/downloads/jdk8-downloads-2133151.html | \
        awk "/downloads\['/ && ! /demos/ && /\['files'\]\['jdk/"

样本输出

downloads['jdk-8u51-oth-JPR']['files']['jdk-8u51-linux-i586.rpm'] = { "title":"Linux x86", "size":"146.9 MB","filepath":"http://download.oracle.com/otn-pub/java/jdk/8u51-b16/jdk-8u51-linux-i586.rpm"};
downloads['jdk-8u51-oth-JPR']['files']['jdk-8u51-linux-i586.tar.gz'] = { "title":"Linux x86", "size":"166.95 MB","filepath":"http://download.oracle.com/otn-pub/java/jdk/8u51-b16/jdk-8u51-linux-i586.tar.gz"};
downloads['jdk-8u51-oth-JPR']['files']['jdk-8u51-linux-x64.rpm'] = { "title":"Linux x64", "size":"145.19 MB","filepath":"http://download.oracle.com/otn-pub/java/jdk/8u51-b16/jdk-8u51-linux-x64.rpm"};
downloads['jdk-8u51-oth-JPR']['files']['jdk-8u51-linux-x64.tar.gz'] = { "title":"Linux x64", "size":"165.25 MB","filepath":"http://download.oracle.com/otn-pub/java/jdk/8u51-b16/jdk-8u51-linux-x64.tar.gz"};
downloads['jdk-8u51-oth-JPR']['files']['jdk-8u51-macosx-x64.dmg'] = { "title":"Mac OS X x64", "size":"222.09 MB","filepath":"http://download.oracle.com/otn-pub/java/jdk/8u51-b16/jdk-8u51-macosx-x64.dmg"};
downloads['jdk-8u51-oth-JPR']['files']['jdk-8u51-solaris-sparcv9.tar.Z'] = { "title":"Solaris SPARC 64-bit (SVR4 package)", "size":"139.36 MB","filepath":"http://download.oracle.com/otn-pub/java/jdk/8u51-b16/jdk-8u51-solaris-sparcv9.tar.Z"};
downloads['jdk-8u51-oth-JPR']['files']['jdk-8u51-solaris-sparcv9.tar.gz'] = { "title":"Solaris SPARC 64-bit", "size":"98.8 MB","filepath":"http://download.oracle.com/otn-pub/java/jdk/8u51-b16/jdk-8u51-solaris-sparcv9.tar.gz"};
downloads['jdk-8u51-oth-JPR']['files']['jdk-8u51-solaris-x64.tar.Z'] = { "title":"Solaris x64 (SVR4 package)", "size":"139.79 MB","filepath":"http://download.oracle.com/otn-pub/java/jdk/8u51-b16/jdk-8u51-solaris-x64.tar.Z"};
downloads['jdk-8u51-oth-JPR']['files']['jdk-8u51-solaris-x64.tar.gz'] = { "title":"Solaris x64", "size":"96.45 MB","filepath":"http://download.oracle.com/otn-pub/java/jdk/8u51-b16/jdk-8u51-solaris-x64.tar.gz"};
downloads['jdk-8u51-oth-JPR']['files']['jdk-8u51-windows-i586.exe'] = { "title":"Windows x86", "size":"176.02 MB","filepath":"http://download.oracle.com/otn-pub/java/jdk/8u51-b16/jdk-8u51-windows-i586.exe"};
downloads['jdk-8u51-oth-JPR']['files']['jdk-8u51-windows-x64.exe'] = { "title":"Windows x64", "size":"180.51 MB","filepath":"http://download.oracle.com/otn-pub/java/jdk/8u51-b16/jdk-8u51-windows-x64.exe"};