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 **2.下载完成后解压**** 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 **4.重启机器或执行命令：**** source /etc/profile 或者sudo shutdown -r now **5.查看安装情况**** ...