centos安装jdk9
# **1.先下载jdk9的包****
wget --no-check-certificate --no-cookies --header "Cookie: oraclelicense=accept-securebackup-cookie" http://download.oracle.com/otn-pub/java/jdk/9.0.4+11/c2514751926b4512b076cc82f959763f/jdk-9.0.4_linux-x64_bin.tar.gz
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# **2.下载完成后解压****
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下载的文件直接解压在/usr/local/jdk中
tar -zxvf jdk-9.0.4_linux-x64_bin.tar.gz -C /usr/local/jdk9/
# **3.编辑配置文件，配置环境变量****
vim /etc/profile
添加如下内容：JAVA_HOME根据实际目录来
#set java environment
JAVA_HOME=/usr/local/jdk9/jdk-9.0.4
CLASSPATH=$JAVA_HOME/lib/
PATH=$PATH:$JAVA_HOME/bin
export PATH JAVA_HOME CLASSPATH
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**4.重启机器或执行命令：****
source /etc/profile
或者sudo shutdown -r now
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**5.查看安装情况****
java -version
java version "9.0.4"
Java(TM) SE Runtime Environment (build 9.0.4+11)
Java HotSpot(TM) 64-Bit Server VM (build 9.0.4+11, mixed mode)
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上次更新: 2022/01/03, 23:02:56