未安装 JDK 8 - 错误 404:未找到 [英] JDK 8 is NOT installed - ERROR 404: Not Found
问题描述
从昨天开始，我一直试图在我的 Ubuntu 机器上安装 JDK8，但它一直失败.
我一直在尝试运行命令:
sudo add-apt-repository ppa:webupd8team/java -ysudo apt-get 更新sudo apt-get install oracle-java8-installer须藤 apt-get 安装 oracle-java8-set-default但我无法继续，因为在运行命令 sudo apt-get install oracle-java8-installer 时，我得到的是:
<代码>...正在连接到 download.oracle.com (download.oracle.com)|23.215.130.99|:80... 已连接.已发送 HTTP 请求，正在等待响应... 404 Not Found2017-10-18 11:07:34 错误 404:未找到.下载失败未安装 Oracle JDK 8.dpkg: 错误处理包 oracle-java8-installer (--configure):子进程安装后安装脚本返回错误退出状态 1...
我的设置是 64 位 Ubuntu 14.04.
经过大量谷歌搜索后，我在
复制带您到所需下载的链接.不要忘记接受许可协议.在我的情况下(Linux x64)，我需要:http://download.oracle.com/otn-pub/java/jdk/8u181-b13/96a7b8442fe848ef90c96a2fad6ed6d1/jdk-8u181-linux-x64.tar.gz.
就本教程而言，我们只需要链接的路径:http://download.oracle.com/otn-pub/java/jdk/8u181-b13/96a7b8442fe848ef90c96a2fad6ed6d1/.保持安全；我们稍后需要它.
现在在页面中查找校验和链接并
这应该会将您带到一个普通的 html 表格页面.只需寻找适合您机器的 sha256.
同样，我的机器是Linux x64"，所以我需要 1845567095bfbfebd42ed0d09397939796d05456290fb20a83c476ba09f991d3，如图所示.复制值，并妥善保管；我们以后也需要它.
现在，在你的机器上打开一个终端并进入java安装程序文件所在的文件夹:
cd/var/lib/dpkg/info太好了，现在执行这个:
sudo grep --color -P "JAVA_VERSION=[a-z0-9]+" oracle-java8-installer.config输出应该是这样的:
这告诉我们安装程序配置为安装的 Java 版本是什么.因此，要轻松更改这些值，我们将运行如下代码:
sudo sed -i 's|JAVA_VERSION=<此处安装当前 JAVA 版本>|JAVA_VERSION=<此处为新版本>|'oracle-java8-installer.*对于我们的例子，我们从 8u171 升级到 8u181，所以我们会执行:
sudo sed -i 's|JAVA_VERSION=8u171|JAVA_VERSION=8u181|'oracle-java8-installer.*好的，现在我们需要更新下载地址.
sudo grep --color -P "PARTNER_URL=[^ ]+" oracle-java8-installer.config要更新它，我们应该执行这样的命令:
sudo sed -i 's|PARTNER_URL=|PARTNER_URL=|'oracle-java8-installer.* 还记得我一开始告诉你要保存的 URL 吗?好吧，我们现在需要它.将其作为您的新网址，如下所示:
sudo sed -i 's|PARTNER_URL=http://download.oracle.com/otn-pub/java/jdk/8u171-b11/512cd62ec5174c3487ac17c61aaa89e8/|PARTNER_URL=http://download.oracle.com/otn-pub/java/jdk/8u181-b13/96a7b8442fe848ef90c96a2fad6ed6d1/|'oracle-java8-installer.*之后，我们需要更新校验和.所以请执行这个命令:
sudo grep --color -P '[^#]SHA256SUM_TGZ="[^"]+"' oracle-java8-installer.config这会打印出几个不同的 SHA256:
注意它们都是不同的.我们稍后再谈.因此，要更新 SHA256，我们需要执行以下命令:
sudo sed -i 's|SHA256SUM_TGZ=""|SHA256SUM_TGZ=""|'oracle-java8-installer.* 但是我们如何知道要替换当前的哪个 Java 哈希值呢?好吧，我们需要找出我们处理器的架构:
dpkg --print-architecture就我而言，这将输出 amd64.这意味着我应该抓住第二个链接.我怎么知道这个?好吧，我阅读了源代码 (sudo gedit oracle-java8-installer.config)，所以请相信我:
- 如果您的架构是
i386、i586或i686，请选择第一个. - 如果是
amd64，则获取第二个. - 如果是
armv7l或armv6l，则获取第三个. - 如果是
armv8l、arm64或aarch64，请抓取第四个. - 如果以上都不是，你就不走运了...
因此，由于我的是 amd64，使用我们从 Java 网站获得的新哈希，我将执行:
<代码>须藤SED -i的| SHA256SUM_TGZ = b6dd2837efaaec4109b36cfbb94a774db100029f98b0d78be68c27bec0275982" | SHA256SUM_TGZ = 1845567095bfbfebd42ed0d09397939796d05456290fb20a83c476ba09f991d3" |'oracle-java8-installer.*
最后，我们需要修改安装程序的JDK目录名，所以执行这个找到当前的:
sudo grep --color -P "J_DIR=[^ ]+" oracle-java8-installer.config就我而言，这是打印的:
所以我们会执行这样的事情:
sudo sed -i 's|J_DIR=|J_DIR=|'oracle-java8-installer.* 作为我当前的版本jdk1.8.0_171，我执行:
sudo sed -i 's|J_DIR=jdk1.8.0_171|J_DIR=jdk1.8.0_181|'oracle-java8-installer.*而且……就是这样.我们已经准备好调用 java 安装程序了，是的.(呸……打字的时间比我一开始认为的要长).
Since yesterday, I've been trying to install the JDK8 on my Ubuntu machine, but it has been failing constantly.
I've been trying to run the commands:
sudo add-apt-repository ppa:webupd8team/java -y
sudo apt-get update
sudo apt-get install oracle-java8-installer
sudo apt-get install oracle-java8-set-default
But I can't continue because when running the command sudo apt-get install oracle-java8-installer all I get is:
...
Connecting to download.oracle.com (download.oracle.com)|23.215.130.99|:80... connected.
HTTP request sent, awaiting response... 404 Not Found
2017-10-18 11:07:34 ERROR 404: Not Found.
download failed
Oracle JDK 8 is NOT installed.
dpkg: error processing package oracle-java8-installer (--configure):
subprocess installed post-installation script returned error exit status 1
...
My Setup is a 64-bit Ubuntu 14.04.
After a lot of googling around I found a answer on the Ubuntu forum.
Basically, the problem seems to be that there is a new version of java and the installer wasn't updated to reference it.
If your machine is a Linux x64 with an AMD64 processor, you need the latest Java8 version, and you previously installed version 8u212, this can be easily fixed by running these commands (Credit for the original version goes to g1zmo2):
cd /var/lib/dpkg/info
sudo sed -i 's|JAVA_VERSION=8u212|JAVA_VERSION=8u221|' oracle-java8-installer.*
sudo sed -i 's|PARTNER_URL=https://download.oracle.com/otn/java/jdk/8u212-b10/59066701cf1a433da9770636fbc4c9aa/|PARTNER_URL=https://download.oracle.com/otn/java/jdk/8u221-b11/230deb18db3e4014bb8e3e8324f81b43/|' oracle-java8-installer.*
sudo sed -i 's|SHA256SUM_TGZ=.*|SHA256SUM_TGZ="15ad4f7260d2416ac1558341d9d0a0ec5b83904e4ac4a22c8a3242e4e217649b"|' oracle-java8-installer.*
sudo sed -i 's|J_DIR=jdk1.8.0_212|J_DIR=jdk1.8.0_2221|' oracle-java8-installer.*
And then running the JDK 8 installer commands like you normally would =):
sudo apt-get update
sudo apt-get install oracle-java8-installer
sudo apt-get install oracle-java8-set-default
If your machine is not a Linux x64 AMD64, your previous version wasn't 8u212 or you are looking for Java 9, well, you are in luck. Today is the day you'll learn to fix your java installer for your own needs.
For the purposes of this tutorial, we'll assume you want Java 8u181 and you had previously installed Java 8u171 (because that's what I have).
First, I need you to go to Java's JDK Downloads page (For Java8, go here, click the "Downloads" tab, and then the "Java SE 8u181" link).
Now, look up the JDK version you need based on your machine. In my case, my machine is running on Ubuntu 14.04 64-bit, so I need "Linux x64".
Copy the link that takes you to the download you need. Don't forget to accept the license agreement. In my case (Linux x64), I need: http://download.oracle.com/otn-pub/java/jdk/8u181-b13/96a7b8442fe848ef90c96a2fad6ed6d1/jdk-8u181-linux-x64.tar.gz.
For the purposes of this tutorial, we only need the link's path: http://download.oracle.com/otn-pub/java/jdk/8u181-b13/96a7b8442fe848ef90c96a2fad6ed6d1/. Keep it safe; we'll need it later.
Now look up the checksum link in the page and click it.
This should take you to a plain html table page. Just look for the sha256 that fits your machine.
Again, my machine is a "Linux x64" so I need 1845567095bfbfebd42ed0d09397939796d05456290fb20a83c476ba09f991d3, like in the picture. Copy the value, and keep it safe; we'll need it later too.
Now, open a terminal on your machine and enter the folder where the java installer file are:
cd /var/lib/dpkg/info
Great, now execute this:
sudo grep --color -P "JAVA_VERSION=[a-z0-9]+" oracle-java8-installer.config
The output should look something like this:
This tells us what is the java version that the installer is configured to install. So to change those values easily we would run something like this:
sudo sed -i 's|JAVA_VERSION=<INSTALLER CURRENT JAVA VERSION HERE>|JAVA_VERSION=<NEW VERSION HERE>|' oracle-java8-installer.*
For our case, we are upgrading from 8u171 to 8u181, so we would execute:
sudo sed -i 's|JAVA_VERSION=8u171|JAVA_VERSION=8u181|' oracle-java8-installer.*
Ok, now we need to update the download url.
sudo grep --color -P "PARTNER_URL=[^ ]+" oracle-java8-installer.config
To update it, we should execute a command like this:
sudo sed -i 's|PARTNER_URL=<INSTALLER CURRENT JAVA URL HERE>|PARTNER_URL=<NEW URL HERE>|' oracle-java8-installer.*
Remember that URL I told you to save at the start? Well, we'll need it now. Place it as your new url, like this:
sudo sed -i 's|PARTNER_URL=http://download.oracle.com/otn-pub/java/jdk/8u171-b11/512cd62ec5174c3487ac17c61aaa89e8/|PARTNER_URL=http://download.oracle.com/otn-pub/java/jdk/8u181-b13/96a7b8442fe848ef90c96a2fad6ed6d1/|' oracle-java8-installer.*
After that, we need to update the checksum. So please execute this command:
sudo grep --color -P '[^#]SHA256SUM_TGZ="[^"]+"' oracle-java8-installer.config
This prints out a couple different SHA256:
Notice that they are all different. We'll get back at that in a second. So, to update the SHA256, we would need to execute this command:
sudo sed -i 's|SHA256SUM_TGZ="<INSTALLER CURRENT JAVA HASH HERE>"|SHA256SUM_TGZ="<NEW JAVA HASH>"|' oracle-java8-installer.*
But how do we know which of the current Java hashes to replace? Well, we need to find out our processor's architecture:
dpkg --print-architecture
In my case, this will output amd64. This means I should grab the second link. How do I know this? Well, I read the source code (sudo gedit oracle-java8-installer.config), so trust me on this:
- If your architecture is
i386,i586ori686, grab the first one. - If
amd64, grab the second one. - If
armv7lorarmv6l, grab the third one. - If
armv8l,arm64oraarch64, grab the fourth one. - If none of the above, you are out of luck...
So, as mine is amd64, using the new hash we obtained from Java's website, I would execute:
sudo sed -i 's|SHA256SUM_TGZ="b6dd2837efaaec4109b36cfbb94a774db100029f98b0d78be68c27bec0275982"|SHA256SUM_TGZ="1845567095bfbfebd42ed0d09397939796d05456290fb20a83c476ba09f991d3"|' oracle-java8-installer.*
Finally, we need to modify the installers JDK directory name, so execute this to find the current one:
sudo grep --color -P "J_DIR=[^ ]+" oracle-java8-installer.config
In my case this printed:
So we would execute something like this:
sudo sed -i 's|J_DIR=<INSTALLER CURRENT JDK VERSION HERE>|J_DIR=<NEW JDK VERSION>|' oracle-java8-installer.*
Being my current version jdk1.8.0_171, I execute:
sudo sed -i 's|J_DIR=jdk1.8.0_171|J_DIR=jdk1.8.0_181|' oracle-java8-installer.*
And... that's it. We are ready to call the java installer, yay. (phew... this took longer to type that I thought at first).
这篇关于未安装 JDK 8 - 错误 404:未找到的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！
