Linux下安装JDK11

官网

https://www.oracle.com/java/technologies/javase-jdk11-downloads.html

解压

[root@dispatch001 opt]# ll
total 381404
drwxr-xr-x 8 root root      4096 May 30 16:55 jdk-11.0.7
-rw-r--r-- 1 root root 181015877 May 30 16:54 jdk-11.0.7_linux-x64_bin.tar.gz
-rwxr-xr-x 1 root root 209531101 May 30 16:53 sonarqube-7.9.3.zip

移动重命名

[root@dispatch001 opt]# mv jdk-11.0.7 /usr/local/java
[root@dispatch001 opt]# ll /usr/local/java/
total 32
drwxr-xr-x  2 root  root  4096 May 30 16:55 bin
drwxr-xr-x  4 root  root  4096 May 30 16:55 conf
drwxr-xr-x  3 root  root  4096 May 30 16:55 include
drwxr-xr-x  2 root  root  4096 May 30 16:55 jmods
drwxr-xr-x 72 root  root  4096 May 30 16:55 legal
drwxr-xr-x  6 root  root  4096 May 30 16:55 lib
-r--r--r--  1 10668 10668  160 Mar 12 09:15 README.html
-rw-r--r--  1 10668 10668 1256 Mar 12 09:15 release

配置环境变量

[root@dispatch001 opt]# vim /etc/profile
export JAVA_HOME=/usr/local/java
export JRE_HOME=/usr/local/java/jre
export CLASSPATH=.:$JAVA_HOME/lib/dt.jar:/lib/tools.jar:$JRE_HOME/lib:$CLASSPATH
export PATH=$JAVA_HOME/bin:$PATH
[root@dispatch001 opt]# source /etc/profile
[root@dispatch001 opt]# java -version
java version "11.0.7" 2020-04-14 LTS
Java(TM) SE Runtime Environment 18.9 (build 11.0.7+8-LTS)
Java HotSpot(TM) 64-Bit Server VM 18.9 (build 11.0.7+8-LTS, mixed mode)