天翼云ubuntu安装JDK8_404 not found [ip: 185.125.190.52 80]

1.添加ppa

连接主机...
连接主机成功
Welcome to Ubuntu 20.04.2 LTS (GNU/Linux 5.4.0-70-generic x86_64)
 
 * Documentation:  https://help.ubuntu.com
 * Management:     https://landscape.canonical.com
 * Support:        https://ubuntu.com/advantage
 
  System information as of Tue 18 Oct 2022 08:01:31 PM UTC
 
  System load:  0.0                Processes:             117
  Usage of /:   20.8% of 35.18GB   Users logged in:       1
  Memory usage: 20%                IPv4 address for eth0: 192.168.1.117
  Swap usage:   0%
 
 * Super-optimized for small spaces - read how we shrank the memory
   footprint of MicroK8s to make it the smallest full K8s around.
 
   https://ubuntu.com/blog/microk8s-memory-optimisation
 
113 updates can be installed immediately.
3 of these updates are security updates.
To see these additional updates run: apt list --upgradable
 
New release '22.04.1 LTS' available.
Run 'do-release-upgrade' to upgrade to it.
 
 
*** System restart required ***
Last login: Tue Oct 18 13:54:10 2022 from 115.227.167.157
root@wwqovahhked4rb48:~# add-apt-repository ppa:webupd8team/java
 The Oracle JDK License has changed for releases starting April 16, 2019.
 
The new Oracle Technology Network License Agreement for Oracle Java SE is substantially different from prior Oracle JDK licenses. The new license permits certain uses, such as personal use and development use, at no cost -- but other uses authorized under prior Oracle JDK licenses may no longer be available. Please review the terms carefully before downloading and using this product. An FAQ is available here: https://www.oracle.com/technetwork/java/javase/overview/oracle-jdk-faqs.html
 
Oracle Java downloads now require logging in to an Oracle account to download Java updates, like the latest Oracle Java 8u211 / Java SE 8u212. Because of this I cannot update the PPA with the latest Java (and the old links were broken by Oracle).
 
For this reason, THIS PPA IS DISCONTINUED.
 
UPDATE:
 
For Oracle Java 17, see a different PPA -> https://www.linuxuprising.com/2021/09/how-to-install-oracle-java-17-lts-on.html
 
Old description:
 
Oracle Java (JDK) Installer (automatically downloads and installs Oracle JDK8). There are no actual Java files in this PPA.
 
Important -> Why Oracle Java 7 And 6 Installers No Longer Work: http://www.webupd8.org/2017/06/why-oracle-java-7-and-6-installers-no.html
 
Update: Oracle Java 9 has reached end of life: http://www.oracle.com/technetwork/java/javase/downloads/jdk9-downloads-3848520.html
 
The PPA supports Ubuntu 18.10, 18.04, 16.04, 14.04 and 12.04.
 
More info (and Ubuntu installation instructions):
- http://www.webupd8.org/2012/09/install-oracle-java-8-in-ubuntu-via-ppa.html
 
Debian installation instructions:
- Oracle Java 8: http://www.webupd8.org/2014/03/how-to-install-oracle-java-8-in-debian.html
 More info: https://launchpad.net/~webupd8team/+archive/ubuntu/java
Press [ENTER] to continue or Ctrl-c to cancel adding it.
 
 
Hit:1 http://repo.mysql.com/apt/ubuntu focal InRelease
Hit:2 http://archive.ubuntu.com/ubuntu focal InRelease              
Get:3 http://security.ubuntu.com/ubuntu focal-security InRelease [114 kB]
Ign:4 http://ppa.launchpad.net/webupd8team/java/ubuntu focal InRelease        
Get:5 http://archive.ubuntu.com/ubuntu focal-updates InRelease [114 kB]                                     
Err:6 http://ppa.launchpad.net/webupd8team/java/ubuntu focal Release                                                  
  404  Not Found [IP: 185.125.190.52 80]
Get:7 http://security.ubuntu.com/ubuntu focal-security/main amd64 Packages [1,784 kB]
Get:8 http://archive.ubuntu.com/ubuntu focal-backports InRelease [108 kB]
Get:9 http://archive.ubuntu.com/ubuntu focal-updates/main amd64 Packages [2,191 kB]
Get:10 http://security.ubuntu.com/ubuntu focal-security/universe amd64 Packages [739 kB]
Get:11 http://archive.ubuntu.com/ubuntu focal-updates/main Translation-en [385 kB]           
Get:12 http://archive.ubuntu.com/ubuntu focal-updates/restricted amd64 Packages [1,367 kB]
Get:13 http://archive.ubuntu.com/ubuntu focal-updates/restricted Translation-en [193 kB]
Get:14 http://archive.ubuntu.com/ubuntu focal-updates/universe amd64 Packages [970 kB]
Get:15 http://archive.ubuntu.com/ubuntu focal-updates/universe Translation-en [221 kB]
Reading package lists... Done                               
E: The repository 'http://ppa.launchpad.net/webupd8team/java/ubuntu focal Release' does not have a Release file.
N: Updating from such a repository can't be done securely, and is therefore disabled by default.
N: See apt-secure(8) manpage for repository creation and user configuration details.
root@wwqovahhked4rb48:~# 
root@wwqovahhked4rb48:~# add-apt-repository ppa:ts.sch.gr/ppa
 This repository is maintained by the Hellenic Schools Technical Support Team (https://ts.sch.gr). It provides:
 * Updated versions of packages we maintain like epoptes and ltsp
 * Bug fixing versions of packages we use like x11vnc, p7zip, marco
 * Packages that do not exist in Ubuntu like sch-scripts, oracle-java8-installer
 More info: https://launchpad.net/~ts.sch.gr/+archive/ubuntu/ppa
Press [ENTER] to continue or Ctrl-c to cancel adding it.
Hit:1 http://repo.mysql.com/apt/ubuntu focal InRelease
Hit:2 http://archive.ubuntu.com/ubuntu focal InRelease              
Get:3 http://ppa.launchpad.net/ts.sch.gr/ppa/ubuntu focal InRelease [17.6 kB]
Hit:4 http://security.ubuntu.com/ubuntu focal-security InRelease                
Hit:5 http://archive.ubuntu.com/ubuntu focal-updates InRelease                  
Hit:6 http://archive.ubuntu.com/ubuntu focal-backports InRelease           
Ign:7 http://ppa.launchpad.net/webupd8team/java/ubuntu focal InRelease     
Get:8 http://ppa.launchpad.net/ts.sch.gr/ppa/ubuntu focal/main amd64 Packages [5,876 B]
Get:9 http://ppa.launchpad.net/ts.sch.gr/ppa/ubuntu focal/main Translation-en [3,712 B]
Err:10 http://ppa.launchpad.net/webupd8team/java/ubuntu focal Release             
  404  Not Found [IP: 185.125.190.52 80]
Reading package lists... Done
E: The repository 'http://ppa.launchpad.net/webupd8team/java/ubuntu focal Release' does not have a Release file.
N: Updating from such a repository can't be done securely, and is therefore disabled by default.
N: See apt-secure(8) manpage for repository creation and user configuration details.
root@wwqovahhked4rb48:~# 
root@wwqovahhked4rb48:~# apt-get update
Hit:1 http://security.ubuntu.com/ubuntu focal-security InRelease
Hit:2 http://repo.mysql.com/apt/ubuntu focal InRelease              
Hit:3 http://archive.ubuntu.com/ubuntu focal InRelease              
Hit:4 http://ppa.launchpad.net/ts.sch.gr/ppa/ubuntu focal InRelease
Hit:5 http://archive.ubuntu.com/ubuntu focal-updates InRelease             
Hit:6 http://archive.ubuntu.com/ubuntu focal-backports InRelease           
Ign:7 http://ppa.launchpad.net/webupd8team/java/ubuntu focal InRelease     
Err:8 http://ppa.launchpad.net/webupd8team/java/ubuntu focal Release
  404  Not Found [IP: 185.125.190.52 80]
Reading package lists... Done
E: The repository 'http://ppa.launchpad.net/webupd8team/java/ubuntu focal Release' does not have a Release file.
N: Updating from such a repository can't be done securely, and is therefore disabled by default.
N: See apt-secure(8) manpage for repository creation and user configuration details.
root@wwqovahhked4rb48:~# apt-get install oracle-java8-installer
Reading package lists... Done
Building dependency tree       
Reading state information... Done
The following additional packages will be installed:
  binutils binutils-common binutils-x86-64-linux-gnu gsfonts gsfonts-x11 java-common libbinutils libctf-nobfd0 libctf0 libfontenc1 oracle-java8-set-default x11-common xfonts-encodings
  xfonts-utils
Suggested packages:
  binutils-doc binfmt-support visualvm ttf-baekmuk | ttf-unfonts | ttf-unfonts-core ttf-kochi-gothic | ttf-sazanami-gothic ttf-kochi-mincho | ttf-sazanami-mincho ttf-arphic-uming firefox
  | firefox-2 | iceweasel | mozilla-firefox | iceape-browser | mozilla-browser | epiphany-gecko | epiphany-webkit | epiphany-browser | galeon | midbrowser | moblin-web-browser | xulrunner
  | xulrunner-1.9 | konqueror | chromium-browser | midori | google-chrome
The following NEW packages will be installed:
  binutils binutils-common binutils-x86-64-linux-gnu gsfonts gsfonts-x11 java-common libbinutils libctf-nobfd0 libctf0 libfontenc1 oracle-java8-installer oracle-java8-set-default x11-common
  xfonts-encodings xfonts-utils
0 upgraded, 15 newly installed, 0 to remove and 86 not upgraded.
Need to get 6,267 kB of archives.
After this operation, 20.0 MB of additional disk space will be used.
Do you want to continue? [Y/n] Y
Get:1 http://archive.ubuntu.com/ubuntu focal-updates/main amd64 binutils-common amd64 2.34-6ubuntu1.3 [207 kB]
Get:2 http://ppa.launchpad.net/ts.sch.gr/ppa/ubuntu focal/main amd64 oracle-java8-installer all 8u212-1~201909110927~ubuntu20.04.1 [33.2 kB]
Get:3 http://archive.ubuntu.com/ubuntu focal-updates/main amd64 libbinutils amd64 2.34-6ubuntu1.3 [474 kB]
Get:4 http://archive.ubuntu.com/ubuntu focal-updates/main amd64 libctf-nobfd0 amd64 2.34-6ubuntu1.3 [47.4 kB]
Get:5 http://archive.ubuntu.com/ubuntu focal-updates/main amd64 libctf0 amd64 2.34-6ubuntu1.3 [46.6 kB]
Get:6 http://archive.ubuntu.com/ubuntu focal-updates/main amd64 binutils-x86-64-linux-gnu amd64 2.34-6ubuntu1.3 [1,613 kB]
Get:7 http://archive.ubuntu.com/ubuntu focal-updates/main amd64 binutils amd64 2.34-6ubuntu1.3 [3,380 B]    
Get:8 http://archive.ubuntu.com/ubuntu focal/main amd64 java-common all 0.72 [6,816 B]      
Get:9 http://archive.ubuntu.com/ubuntu focal/universe amd64 gsfonts all 1:8.11+urwcyr1.0.7~pre44-4.4 [3,120 kB]
Get:10 http://archive.ubuntu.com/ubuntu focal/main amd64 libfontenc1 amd64 1:1.1.4-0ubuntu1 [14.0 kB]
Get:11 http://archive.ubuntu.com/ubuntu focal/main amd64 x11-common all 1:7.7+19ubuntu14 [22.3 kB]
Get:12 http://archive.ubuntu.com/ubuntu focal/main amd64 xfonts-encodings all 1:1.0.5-0ubuntu1 [573 kB]
Get:13 http://archive.ubuntu.com/ubuntu focal/main amd64 xfonts-utils amd64 1:7.7+6 [91.5 kB]
Get:14 http://ppa.launchpad.net/ts.sch.gr/ppa/ubuntu focal/main amd64 oracle-java8-set-default all 8u212-1~201909110927~ubuntu20.04.1 [7,188 B]
Get:15 http://archive.ubuntu.com/ubuntu focal/universe amd64 gsfonts-x11 all 0.27 [7,120 B]
Fetched 6,267 kB in 3s (2,027 kB/s)
Preconfiguring packages ...
Selecting previously unselected package binutils-common:amd64.
(Reading database ... 109289 files and directories currently installed.)
Preparing to unpack .../0-binutils-common_2.34-6ubuntu1.3_amd64.deb ...
Unpacking binutils-common:amd64 (2.34-6ubuntu1.3) ...
Selecting previously unselected package libbinutils:amd64.
Preparing to unpack .../1-libbinutils_2.34-6ubuntu1.3_amd64.deb ...
Unpacking libbinutils:amd64 (2.34-6ubuntu1.3) ...
Selecting previously unselected package libctf-nobfd0:amd64.
Preparing to unpack .../2-libctf-nobfd0_2.34-6ubuntu1.3_amd64.deb ...
Unpacking libctf-nobfd0:amd64 (2.34-6ubuntu1.3) ...
Selecting previously unselected package libctf0:amd64.
Preparing to unpack .../3-libctf0_2.34-6ubuntu1.3_amd64.deb ...
Unpacking libctf0:amd64 (2.34-6ubuntu1.3) ...
Selecting previously unselected package binutils-x86-64-linux-gnu.
Preparing to unpack .../4-binutils-x86-64-linux-gnu_2.34-6ubuntu1.3_amd64.deb ...
Unpacking binutils-x86-64-linux-gnu (2.34-6ubuntu1.3) ...
Selecting previously unselected package binutils.
Preparing to unpack .../5-binutils_2.34-6ubuntu1.3_amd64.deb ...
Unpacking binutils (2.34-6ubuntu1.3) ...
Selecting previously unselected package java-common.
Preparing to unpack .../6-java-common_0.72_all.deb ...
Unpacking java-common (0.72) ...
Setting up binutils-common:amd64 (2.34-6ubuntu1.3) ...
Setting up libbinutils:amd64 (2.34-6ubuntu1.3) ...
Setting up libctf-nobfd0:amd64 (2.34-6ubuntu1.3) ...
Setting up libctf0:amd64 (2.34-6ubuntu1.3) ...
Setting up binutils-x86-64-linux-gnu (2.34-6ubuntu1.3) ...
Setting up binutils (2.34-6ubuntu1.3) ...
Selecting previously unselected package oracle-java8-installer.
(Reading database ... 109562 files and directories currently installed.)
Preparing to unpack .../oracle-java8-installer_8u212-1~201909110927~ubuntu20.04.1_all.deb ...
Unpacking oracle-java8-installer (8u212-1~201909110927~ubuntu20.04.1) ...
Setting up java-common (0.72) ...
Setting up oracle-java8-installer (8u212-1~201909110927~ubuntu20.04.1) ...
No /var/cache/oracle-jdk8-installer/wgetrc file found.
Creating /var/cache/oracle-jdk8-installer/wgetrc and
using default oracle-java8-installer wgetrc settings for it.
Downloading Oracle Java 8...
--2022-10-18 20:07:26--  https://github.com/frekele/oracle-java/releases/download/8u212-b10/jdk-8u212-linux-x64.tar.gz
Resolving github.com (github.com)... 192.30.255.113
Connecting to github.com (github.com)|192.30.255.113|:443... failed: Connection timed out.
Retrying.
--2022-10-18 20:09:37--  (try: 2)  https://github.com/frekele/oracle-java/releases/download/8u212-b10/jdk-8u212-linux-x64.tar.gz
Connecting to github.com (github.com)|192.30.255.113|:443... failed: Connection timed out.
Retrying.
--2022-10-18 20:11:49--  (try: 3)  https://github.com/frekele/oracle-java/releases/download/8u212-b10/jdk-8u212-linux-x64.tar.gz
Connecting to github.com (github.com)|192.30.255.113|:443... 
[1]+  Stopped                 apt-get install oracle-java8-installer
root@wwqovahhked4rb48:~# apt-get install oracle-java8-installer
E: Could not get lock /var/lib/dpkg/lock-frontend. It is held by process 188143 (apt-get)
N: Be aware that removing the lock file is not a solution and may break your system.
E: Unable to acquire the dpkg frontend lock (/var/lib/dpkg/lock-frontend), is another process using it?
root@wwqovahhked4rb48:~# jps
Command 'jps' not found, but can be installed with:
apt install openjdk-11-jdk-headless  # version 11.0.16+8-0ubuntu1~20.04, or
apt install openjdk-16-jdk-headless  # version 16.0.1+9-1~20.04
apt install openjdk-17-jdk-headless  # version 17.0.4+8-1~20.04
apt install openjdk-8-jdk-headless   # version 8u342-b07-0ubuntu1~20.04
apt install openjdk-13-jdk-headless  # version 13.0.7+5-0ubuntu1~20.04
root@wwqovahhked4rb48:~# apt-get install oracle-java8-installer
E: Could not get lock /var/lib/dpkg/lock-frontend. It is held by process 188143 (apt-get)
N: Be aware that removing the lock file is not a solution and may break your system.
E: Unable to acquire the dpkg frontend lock (/var/lib/dpkg/lock-frontend), is another process using it?
root@wwqovahhked4rb48:~# kill -9 188143
root@wwqovahhked4rb48:~# apt-get install oracle-java8-installer
E: Could not get lock /var/lib/dpkg/lock. It is held by process 188462 (dpkg)
N: Be aware that removing the lock file is not a solution and may break your system.
E: Unable to lock the administration directory (/var/lib/dpkg/), is another process using it?
[1]+  Killed                  apt-get install oracle-java8-installer
root@wwqovahhked4rb48:~# rm /var/cache/apt/archives/lock
root@wwqovahhked4rb48:~# rm /var/lib/dpkg/lock
root@wwqovahhked4rb48:~# apt-get install oracle-java8-installer
E: dpkg was interrupted, you must manually run 'dpkg --configure -a' to correct the problem. 
root@wwqovahhked4rb48:~# dpkg --configure -a
Setting up oracle-java8-installer (8u212-1~201909110927~ubuntu20.04.1) ...
Installing from local file /var/cache/oracle-jdk8-installer/jdk-8u212-linux-x64.tar.gz
Removing outdated cached downloads...
update-alternatives: error: no alternatives for java
update-alternatives: using /usr/lib/jvm/java-8-oracle/jre/bin/ControlPanel to provide /usr/bin/ControlPanel (ControlPanel) in auto mode
update-alternatives: using /usr/lib/jvm/java-8-oracle/jre/bin/java to provide /usr/bin/java (java) in auto mode
update-alternatives: using /usr/lib/jvm/java-8-oracle/jre/bin/javaws to provide /usr/bin/javaws (javaws) in auto mode
update-alternatives: using /usr/lib/jvm/java-8-oracle/jre/bin/jcontrol to provide /usr/bin/jcontrol (jcontrol) in auto mode
update-alternatives: using /usr/lib/jvm/java-8-oracle/jre/bin/jjs to provide /usr/bin/jjs (jjs) in auto mode
update-alternatives: using /usr/lib/jvm/java-8-oracle/jre/bin/keytool to provide /usr/bin/keytool (keytool) in auto mode
update-alternatives: using /usr/lib/jvm/java-8-oracle/jre/bin/orbd to provide /usr/bin/orbd (orbd) in auto mode
update-alternatives: using /usr/lib/jvm/java-8-oracle/jre/bin/pack200 to provide /usr/bin/pack200 (pack200) in auto mode
update-alternatives: using /usr/lib/jvm/java-8-oracle/jre/bin/policytool to provide /usr/bin/policytool (policytool) in auto mode
update-alternatives: using /usr/lib/jvm/java-8-oracle/jre/bin/rmid to provide /usr/bin/rmid (rmid) in auto mode
update-alternatives: using /usr/lib/jvm/java-8-oracle/jre/bin/rmiregistry to provide /usr/bin/rmiregistry (rmiregistry) in auto mode
update-alternatives: using /usr/lib/jvm/java-8-oracle/jre/bin/servertool to provide /usr/bin/servertool (servertool) in auto mode
update-alternatives: using /usr/lib/jvm/java-8-oracle/jre/bin/tnameserv to provide /usr/bin/tnameserv (tnameserv) in auto mode
update-alternatives: using /usr/lib/jvm/java-8-oracle/jre/bin/unpack200 to provide /usr/bin/unpack200 (unpack200) in auto mode
update-alternatives: using /usr/lib/jvm/java-8-oracle/jre/lib/jexec to provide /usr/bin/jexec (jexec) in auto mode
update-alternatives: using /usr/lib/jvm/java-8-oracle/bin/appletviewer to provide /usr/bin/appletviewer (appletviewer) in auto mode
update-alternatives: using /usr/lib/jvm/java-8-oracle/bin/extcheck to provide /usr/bin/extcheck (extcheck) in auto mode
update-alternatives: using /usr/lib/jvm/java-8-oracle/bin/idlj to provide /usr/bin/idlj (idlj) in auto mode
update-alternatives: using /usr/lib/jvm/java-8-oracle/bin/jar to provide /usr/bin/jar (jar) in auto mode
update-alternatives: using /usr/lib/jvm/java-8-oracle/bin/jarsigner to provide /usr/bin/jarsigner (jarsigner) in auto mode
update-alternatives: using /usr/lib/jvm/java-8-oracle/bin/javac to provide /usr/bin/javac (javac) in auto mode
update-alternatives: using /usr/lib/jvm/java-8-oracle/bin/javadoc to provide /usr/bin/javadoc (javadoc) in auto mode
update-alternatives: using /usr/lib/jvm/java-8-oracle/bin/javafxpackager to provide /usr/bin/javafxpackager (javafxpackager) in auto mode
update-alternatives: using /usr/lib/jvm/java-8-oracle/bin/javah to provide /usr/bin/javah (javah) in auto mode
update-alternatives: using /usr/lib/jvm/java-8-oracle/bin/javap to provide /usr/bin/javap (javap) in auto mode
update-alternatives: using /usr/lib/jvm/java-8-oracle/bin/javapackager to provide /usr/bin/javapackager (javapackager) in auto mode
update-alternatives: using /usr/lib/jvm/java-8-oracle/bin/jcmd to provide /usr/bin/jcmd (jcmd) in auto mode
update-alternatives: using /usr/lib/jvm/java-8-oracle/bin/jconsole to provide /usr/bin/jconsole (jconsole) in auto mode
update-alternatives: using /usr/lib/jvm/java-8-oracle/bin/jdb to provide /usr/bin/jdb (jdb) in auto mode
update-alternatives: using /usr/lib/jvm/java-8-oracle/bin/jdeps to provide /usr/bin/jdeps (jdeps) in auto mode
update-alternatives: using /usr/lib/jvm/java-8-oracle/bin/jhat to provide /usr/bin/jhat (jhat) in auto mode
update-alternatives: using /usr/lib/jvm/java-8-oracle/bin/jinfo to provide /usr/bin/jinfo (jinfo) in auto mode
update-alternatives: using /usr/lib/jvm/java-8-oracle/bin/jmap to provide /usr/bin/jmap (jmap) in auto mode
update-alternatives: using /usr/lib/jvm/java-8-oracle/bin/jmc to provide /usr/bin/jmc (jmc) in auto mode
update-alternatives: using /usr/lib/jvm/java-8-oracle/bin/jps to provide /usr/bin/jps (jps) in auto mode
update-alternatives: using /usr/lib/jvm/java-8-oracle/bin/jrunscript to provide /usr/bin/jrunscript (jrunscript) in auto mode
update-alternatives: using /usr/lib/jvm/java-8-oracle/bin/jsadebugd to provide /usr/bin/jsadebugd (jsadebugd) in auto mode
update-alternatives: using /usr/lib/jvm/java-8-oracle/bin/jstack to provide /usr/bin/jstack (jstack) in auto mode
update-alternatives: using /usr/lib/jvm/java-8-oracle/bin/jstat to provide /usr/bin/jstat (jstat) in auto mode
update-alternatives: using /usr/lib/jvm/java-8-oracle/bin/jstatd to provide /usr/bin/jstatd (jstatd) in auto mode
update-alternatives: using /usr/lib/jvm/java-8-oracle/bin/jvisualvm to provide /usr/bin/jvisualvm (jvisualvm) in auto mode
update-alternatives: using /usr/lib/jvm/java-8-oracle/bin/native2ascii to provide /usr/bin/native2ascii (native2ascii) in auto mode
update-alternatives: using /usr/lib/jvm/java-8-oracle/bin/rmic to provide /usr/bin/rmic (rmic) in auto mode
update-alternatives: using /usr/lib/jvm/java-8-oracle/bin/schemagen to provide /usr/bin/schemagen (schemagen) in auto mode
update-alternatives: using /usr/lib/jvm/java-8-oracle/bin/serialver to provide /usr/bin/serialver (serialver) in auto mode
update-alternatives: using /usr/lib/jvm/java-8-oracle/bin/wsgen to provide /usr/bin/wsgen (wsgen) in auto mode
update-alternatives: using /usr/lib/jvm/java-8-oracle/bin/wsimport to provide /usr/bin/wsimport (wsimport) in auto mode
update-alternatives: using /usr/lib/jvm/java-8-oracle/bin/xjc to provide /usr/bin/xjc (xjc) in auto mode
update-alternatives: using /usr/lib/jvm/java-8-oracle/jre/lib/amd64/libnpjp2.so to provide /usr/lib/mozilla/plugins/libjavaplugin.so (mozilla-javaplugin.so) in auto mode
Oracle JDK 8 installed
#####Important########
To set Oracle JDK8 as default, install the "oracle-java8-set-default" package.
E.g.: sudo apt install oracle-java8-set-default
On Ubuntu systems, oracle-java8-set-default is most probably installed
automatically with this package.
######################
Processing triggers for shared-mime-info (1.15-1) ...
Processing triggers for mime-support (3.64ubuntu1) ...
Processing triggers for libc-bin (2.31-0ubuntu9.7) ...
Processing triggers for man-db (2.9.1-1) ...
root@wwqovahhked4rb48:~# update-java-alternatives -s java-8-oracle
root@wwqovahhked4rb48:~# java -version
java version "1.8.0_212"
Java(TM) SE Runtime Environment (build 1.8.0_212-b10)
Java HotSpot(TM) 64-Bit Server VM (build 25.212-b10, mixed mode)
root@wwqovahhked4rb48:~# 

连接主机...
连接主机成功
Welcome to Ubuntu 20.04.2 LTS (GNU/Linux 5.4.0-70-generic x86_64)
 
 * Documentation:  https://help.ubuntu.com
 * Management:     https://landscape.canonical.com
 * Support:        https://ubuntu.com/advantage
 
  System information as of Tue 18 Oct 2022 08:12:05 PM UTC
 
  System load:  0.0                Processes:             134
  Usage of /:   20.8% of 35.18GB   Users logged in:       1
  Memory usage: 21%                IPv4 address for eth0: 192.168.1.117
  Swap usage:   0%
 
 * Super-optimized for small spaces - read how we shrank the memory
   footprint of MicroK8s to make it the smallest full K8s around.
 
   https://ubuntu.com/blog/microk8s-memory-optimisation
 
123 updates can be installed immediately.
5 of these updates are security updates.
To see these additional updates run: apt list --upgradable
 
New release '22.04.1 LTS' available.
Run 'do-release-upgrade' to upgrade to it.
 
 
*** System restart required ***
Last login: Tue Oct 18 20:01:32 2022 from 115.227.167.157
root@wwqovahhked4rb48:~# ping 192.30.255.113
PING 192.30.255.113 (192.30.255.113) 56(84) bytes of data.
^C
--- 192.30.255.113 ping statistics ---
16 packets transmitted, 0 received, 100% packet loss, time 15359ms
 
root@wwqovahhked4rb48:~# cd /var/cache/oracle-jdk8-installer/
root@wwqovahhked4rb48:/var/cache/oracle-jdk8-installer# ll
total 36
drwxr-xr-x  2 root root  4096 Oct 18 20:07 ./
drwxr-xr-x 13 root root  4096 Oct 18 20:07 ../
-rwxr-xr-x  1 root root 13959 Dec 15  2019 fontconfig.Ubuntu.properties*
-rw-r--r--  1 root root    91 Dec 15  2019 jar.binfmt
-rwxr-xr-x  1 root root   148 Dec 15  2019 javaws-wrapper.sh*
-rw-r--r--  1 root root     0 Oct 18 20:07 jdk-8u212-linux-x64.tar.gz
-rw-r--r--  1 root root    90 Oct 18 20:07 wgetrc
root@wwqovahhked4rb48:/var/cache/oracle-jdk8-installer# rm -rf jdk-8u212-linux-x64.tar.gz 
root@wwqovahhked4rb48:/var/cache/oracle-jdk8-installer#