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Java 8 JRE 下载 API

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Java 8 JRE 下载 API

是否有任何 API 可以获取最新的 JAVA 8。对于我的自动构建系统，我需要获取最新版本。

类似于： wget https://oracle.com/api/download/jre/8/Linux x64/lastest 这将为我提供最新版本（在本例中构建版本为 u131，截至 05.05.17）

或者我需要去 http://www.oracle.com/technetwork/java/javase/downloads/jre8-downloads-2133155.html，自己做acceptLicense-JS，解析html并获取链接吗？

答案1

对于我的自动构建系统，我需要获取最新版本。

您可以使用weget或curl来执行此操作。

解决方案 1 使用wget

使用wget并使用特殊的 cookie 来绕过许可协议：

只需一个 cookie 即可绕过此问题（您仍然必须同意安装条款）

该 Cookie 是：

Cookie: gpw_e24=http%3A%2F%2Fwww.oracle.com%2F; oraclelicense=accept-securebackup-cookie

例子

如果你想使用 下载适用于 64 位 Linux（例如 Ubuntu）的 jdk7u4 wget，你可以使用：

wget --no-cookies --no-check-certificate --header "Cookie: gpw_e24=http%3A%2F%2Fwww.oracle.com%2F; oraclelicense=accept-securebackup-cookie" "http://download.oracle.com/otn-pub/java/jdk/7u4-b20/jdk-7u4-linux-x64.tar.gz"

来源使用脚本下载 Oracle Java JRE 和 JDK

解决方案 1 使用curl

有一个 shell 脚本可以完全自动化下载。

下载JavaAutomatic.ksh

#!/bin/ksh

###################################
## Overview
###################################

# Downloads JDK & JRE from download.oracle.com by first walking possible combinations of available version/build numbers.
# Once a version/build is found, subsequent attempts in the same family are primed to avoid walking the entire tree again.
# 
# version=<x> represents the highest attempted version number while walking the tree
# build=<y> represents the highest attempted build number while walking the tree
#
# Adjust "BASE" to control which versions are downloaded.  A value of 8 corresponds to Java-v1.8.x
# Likewise a value of "6 7 8" equates to Java-v1.6.x, Java-v1.7.x, Java-v1.8.x
#
# Adjust "PLATFORMS" to match the architecture platforms you wish to download.
#
# Reference URLS:
# https://gist.github.com/P7h/9741922
# http://download.oracle.com/otn-pub/java/jdk/8u40-b26/jre-8u40-windows-x64.exe
# http://download.oracle.com/otn-pub/java/jdk/8u40-b27/jdk-8u40-macosx-x64.dmg

###################################
## Usage
###################################

# downloadJavaAutomatic.ksh
# Finds and downloads current Java versions

# downloadJavaAutomatic.ksh [-f <file>]
# Skips version/build find routing, uses external <file>
# which contains a list of URLs to be downloaded.
 

###################################
## Config
###################################
version=99
build=30

set -A BASE 8 7 6 
set -A BASE 7 
set -A PLATFORMS -- -linux-x64.tar.gz -linux-i586.tar.gz -macosx-x64.dmg -windows-i586.exe -windows-x64.exe 

###################################
## Subroutines
###################################

doCountCurl() {
    ps -ef | egrep -ie "curl.*${cookie}" | grep -vi grep | wc -l
}

doGetURL() {
    printf "\n$URL\n" 
    Cookie="Cookie:oraclelicense=accept-securebackup-cookie"
    curl -O -L -S -H "${Cookie}" --progress-bar --connect-timeout 55 --fail -k "${1}" 
    if [[ $? -ne 0 ]]; then
        echo ERROR - download failed.
    fi
}

doTestURL() {
    uri_local=$1
    base_local=$2
    version_local=$3
    build_local=$4
    platform_local=$5
    type_local=$6

    Cookie="Cookie:oraclelicense=accept-securebackup-cookie"
    URL="http://download.oracle.com/${uri_local}${base_local}u${version_local}-b${build_local}/${type_local}-${base_local}u${version_local}${platform_local}"
    curl --output /dev/null -L -sS -H "${Cookie}" --head --connect-timeout 15 --max-time 30 --fail -k "${URL}" 2>/dev/null
    if [[ $? -eq 0 ]]; then
        echo $URL >> $urlFile
        printf  "$version_local" > $tmpVersion
        printf  "$build_local" > $tmpBuild
        printf  "${URL}" > $tmpFile
        break
    fi
}

doFindVersionBuild() {
    URI=$1
    BASE=$2
    PLATFORM=$3
    TYPE=$4

    ### If available use version to limit tree walking
    if [[ -e $tmpVersion ]]; then
        version_cnt=$(( `cat $tmpVersion` ))
    else
        version_cnt=$version 
    fi

    while [[ $version_cnt -ge 1 ]] && [[ ! -e $tmpFile ]]; do

        ### If available use build to limit tree walking
    if [[ -e $tmpBuild ]]; then
            build_cnt=$(( 10 + `cat $tmpBuild` ))
        else
            build_cnt=$build 
        fi

        ### Keep going until a version is found
    while [[ $build_cnt -ge 1 ]] && [[ ! -e $tmpFile ]]; do
            ### Limit HTTP connections to avoid saturating connection
        maxHTTP=50; while [[ `doCountCurl` -ge ${maxHTTP} ]]; do sleep 1; done
            
            ### Send to background to speed up process
            doTestURL ${URI} ${BASE} ${version_cnt} ${build_cnt} ${PLATFORM} ${TYPE} &
            (( build_cnt-=1 ))
        done

        (( version_cnt -= 1 ));
        sleep 1
    done 

    ### Wait for current version/build series to finish before starting next round
    while [[ `doCountCurl` -gt 0 ]]; do sleep 1; done

    ### Save results to VERSION array.  Highest version will be element #1
    set -A VERSION dummy `[[ -e $tmpFile ]] && sort -nr $tmpFile`
    if [[ "${VERSION[1]}" != "" ]]; then
        echo ${VERSION[1]}
    else
        printf -- "${TYPE}-${BASE}u??${PLATFORM} - No Version found.\n"
    fi
    
    ### Cleanup
    if [[ -e $tmpFile ]]; then
        rm $tmpFile
    else
        [[ -e $tmpVersion ]] && rm $tmpVersion
        [[ -e $tmpBuild ]] && rm $tmpBuild
    fi
}

doDownload() {
    printf "\nDownloading...\n"
    for URL in $( grep -vi "#" $urlFile ); do
        doGetURL "$URL"
    done
}
    
#########################
### Main 
#########################
tmpFile=$$-tmp.txt
tmpVersion=$$-version.txt
tmpBuild=$$-build.txt
urlFile=url.txt

clear
if [[ $1 = "-f" ]] && [[ -r "$2" ]]; then
    echo "Search for version/build bypassed.  Using URLs within file: $2"
    urlFile=$2
    doDownload
else
    printf "Searching for available versions...\n\n"

    for base in ${BASE[@]}; do
        for type in $(echo jre jdk); do
            printf "# `date`\n" >> $urlFile
            for platform in ${PLATFORMS[@]}; do
                URI=otn-pub/java/jdk/
                doFindVersionBuild ${URI} ${base} ${platform} ${type}
            done
        done
        ### Delete version and build markers before attempting next BASE version. 
        [[ -e $tmpVersion ]] && rm $tmpVersion
        [[ -e $tmpBuild ]] && rm $tmpBuild
    done
    doDownload
fi

[[ -e $urlFile ]] && rm $urlFile

来源Java-JRE-JDK 下载器

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