Ubuntu Linux 安裝 Oracle JDK 步驟

Ubuntu Linux 安裝 Oracle JDK 步驟

apt-get install ant
# dpkg --get-selections | grep ant

 在 Ubuntu 安裝 Oracle JDK
 需要先安裝以下套件:
 #apt-get install python-software-properties
 #apt-get install software-properties-common

安裝 Java 8 了
用 PPA (Personal Package Archives)
 #add-apt-repository ppa:webupd8team/java
 #apt-get update
 #apt-get install oracle-java8-installer

check jdk:
root@ubuntulab1:~# java -version
java version "1.8.0_171"
Java(TM) SE Runtime Environment (build 1.8.0_171-b11)
Java HotSpot(TM) 64-Bit Server VM (build 25.171-b11, mixed mode)

root@ubuntulab1:~# date
二  4月 24 11:00:27 CST 2018
root@ubuntulab1:~# java -version
java version "1.8.0_171"
Java(TM) SE Runtime Environment (build 1.8.0_171-b11)
Java HotSpot(TM) 64-Bit Server VM (build 25.171-b11, mixed mode)

root@ubuntulab1:~# dpkg --get-selections | grep ant
ant install
ant-optional install
enchant install
libenchant1c2a:amd64 install
wpasupplicant install

root@ubuntulab1:~# dpkg --get-selections | grep java
ca-certificates-java install
gir1.2-javascriptcoregtk-4.0:amd64 install
java-common install
libjavascriptcoregtk-4.0-18:amd64 install
oracle-java8-installer install
oracle-java8-set-default install


root@ubuntulab1:~# ll /usr/lib/jvm/
total 24
drwxr-xr-x   4 root root 4096  4月 24 10:56 ./
drwxr-xr-x 149 root root 4096  4月 24 10:56 ../
lrwxrwxrwx   1 root root   24  2月 26  2016 default-java -> java-1.8.0-openjdk-amd64/
lrwxrwxrwx   1 root root   20  3月 14 20:58 java-1.8.0-openjdk-amd64 -> java-8-openjdk-amd64/
-rw-r--r--   1 root root 2600  3月 14 20:58 .java-1.8.0-openjdk-amd64.jinfo
drwxr-xr-x   7 root root 4096  4月 11 14:43 java-8-openjdk-amd64/
drwxr-xr-x   8 root root 4096  4月 24 10:56 java-8-oracle/
-rw-r--r--   1 root root 2643  4月 24 10:56 .java-8-oracle.jinfo