linux 安裝jdk

1卸載jdk

#查看已經安裝的jdk
rpm -qa|grep jdk

顯示已經安裝的jdk

#卸載
rpm -e jdk-9.0.1-9.0.1-ga.x86_64

2 下載jdk

進入jdk下載官網

http://www.oracle.com/technetwork/java/javase/downloads/jdk9-downloads-3848520.html

copy下載地址

mkdir /usr/local/tools
cd /usr/local/tools
wget 下載地址
#修改文件名稱
mv jdk-9.0.1_linux-x64_bin.rpm?AuthParam=****** jdk-9.0.1_linux-x64_bin.rpm

3 安裝

mkdir /usr/java

cp /usr/local/tools/jdk-9.0.1_linux-x64_bin.rpm /usr/java/
cd /usr/java
#添加可執行權限
chmod +x jdk-9.0.1_linux-x64_bin.rpm 

rpm -ivh jdk-9.0.1_linux-x64_bin.rpm 

完成