下载jdk

[root@i-obqe21ce ~]# wget https://repo.huaweicloud.com/openjdk/11.0.2/openjdk-11.0.2_linux-x64_bin.tar.gz
[root@i-azb87apk ~]# mkdir /usr/local/java
[root@i-azb87apk ~]# tar -zxvf openjdk-11.0.2_linux-x64_bin.tar.gz -C /usr/local/java
添加变量
[root@i-azb87apk ~]# vim /etc/profile
export JAVA_HOME=/usr/local/java/jdk-11.0.2
export JRE_HOME=/${JAVA_HOME}
export CLASSPATH=.:${JAVA_HOME}/libss:${JRE_HOME}/lib
export PATH=${JAVA_HOME}/bin:$PATH
变量生效
[root@i-obqe21ce ~]# source /etc/profile
[root@i-obqe21ce ~]# java -version
openjdk version "11.0.2" 2019-01-15
OpenJDK Runtime Environment 18.9 (build 11.0.2+9)
OpenJDK 64-Bit Server VM 18.9 (build 11.0.2+9, mixed mode)
评论