下载JDK 8u221

$ wget -c --content-disposition "https://javadl.oracle.com/webapps/download/AutoDL?BundleId=239835_230deb18db3e4014bb8e3e8324f81b43"
$ old=$(ls -hat | grep jre | head -n1)
$ mv $old $(echo $old | awk -F"?" '{print $1}')

my blog is 044-wget

Cookie: gpw_e24=http%3A%2F%2Fwww.oracle.com%2F;oraclelicense = accept-securebackup-cookie " " http://download.oracle.com/otn-pub/java/jdk/8u161-b12/2f38c3b165be4555a1fa6e98c45e0808/jdk-8u161-linux-x64.rpm?AuthParam=1516282527_40effcfefd78d78bce12c0a4030a1b05 "

我没有为每一个新的Java版本都使用一个新的链接或更改现有的脚本，而是寻找一种更通用的方法来自动下载所需的Java包，然后通过yum localinstall ${JAVA_ENVIRONMENT}-${JAVA_VERSION}-linux-x64.rpm进行安装。

我使用了一种类似于手动/用户操作的简单方法来查找包并下载它。我也非常确定，通过使用其他工具(如egrep、awk等)，人们会找到一种更优雅的方式来完成它。，所以这里留一个例子:

#!/bin/bash

### Proxy settings
# If there is a company proxy 

PROXY="my.proxy.local:8080"
PROXY_TYPE="--proxy-ntlm" # or leave empty with ""
USER="user"
PASS='pass'

### Find out the links to JRE and JDK 
# To do so, got to the page http://www.oracle.com/technetwork/java/javase/downloads/

BASE_URL="technetwork/java/javase/downloads"

# Put the whole page into a single string/line

BASE_URL_OUTPUT="$(curl -s -k ${PROXY_TYPE} -x "http://${USER}:${PASS}@${PROXY}" -L0 http://www.oracle.com/${BASE_URL}/)"

# Define the environments to download 

JAVA_ENVIRONMENTS=("JRE" "JDK") # ! yet "SERVER-JRE"

for JAVA_ENVIRONMENT in "${JAVA_ENVIRONMENTS[@]}"
do

echo
echo "JAVA_ENVIRONMENT="$JAVA_ENVIRONMENT
echo

for (( JAVA_BASE_VERSION = 8; JAVA_BASE_VERSION <= 10; JAVA_BASE_VERSION += 2 ))  
do

echo "JAVA_BASE_VERSION="$JAVA_BASE_VERSION

### "Read the page"
# and follow the links for the package interested in 

DOWNLOAD_SITE="$(echo $BASE_URL_OUTPUT | grep -m 1 -io "${JAVA_ENVIRONMENT}${JAVA_BASE_VERSION}-downloads-[0-9]*.html" -- | tail -1)"
echo "DOWNLOAD_SITE="$DOWNLOAD_SITE

### Gather the necessary download links
# To do so, following the link to the download site
# reading and accept the license 
# 
# ... the greedy regular expression is to address the different syntax of the links
# and already prepared for OR .gz files 

DOWNLOAD_LINK_OUTPUT="$(curl -s -k ${PROXY_TYPE} -x "http://${USER}:${PASS}@${PROXY}" -L -j -H "Cookie: oraclelicense=accept-securebackup-cookie" http://www.oracle.com/${BASE_URL}/${DOWNLOAD_SITE} |  grep -io "filepath.*${JAVA_ENVIRONMENT}-[${JAVA_BASE_VERSION}].*linux[-_]x64[._].*\(rpm\)" -- | cut -d '"' -f 3 | tail -1)"

# and echo out the link

echo "DOWNLOAD_LINK_OUTPUT="$DOWNLOAD_LINK_OUTPUT

done

done

由于下载链接现已可用，您可以进一步使用wget或curl。

这适用于JDK 6，你只需要将下载url替换为最新版本。

wget --no-cookies --header "Cookie: gpw_e24=http%3A%2F%2Fwww.oracle.com%2Ftechnetwork%2Fjava%2Fjavase%2Fdownloads%2Fjdk6-downloads-1637591.html;" http://download.oracle.com/otn-pub/java/jdk/6u33-b03/jdk-6u33-linux-x64.bin

oracle-java-download是GitHub上的一个项目，允许您为JDK 8和JDK 9创建下载链接，您可以使用这些链接进行进一步处理，例如在自动构建或部署过程中。

它需要Linux、Docker和JDK >= 8才能运行。

这个问题将从Oracle JDK 17开始解决

https://www.oracle.com/java/technologies/jdk-script-friendly-urls/

Oracle JDK 17的最新版本可以从命令行下载，也可以通过使用下载url自动在脚本和dockerfile中下载，该下载url将提供当时的更新版本。

你可以使用-

wget https://download.oracle.com/java/17/latest/jdk-17_linux-x64_bin.tar.gz

格式以获取最新的17个版本