Linux安装jdk1.8

# 我一般把包放在这里
mkdir /usr/local/java
cd /usr/local/java

在线下载

nohup wget --no-cookies --no-check-certificate --header "Cookie: gpw_e24=http%3A%2F%2Fwww.oracle.com%2F; oraclelicense=accept-securebackup-cookie" "http://download.oracle.com/otn-pub/java/jdk/8u141-b15/336fa29ff2bb4ef291e347e091f7f4a7/jdk-8u141-linux-x64.tar.gz" &

配置

vim /etc/profile

最后面添加如下

# set java environment
export JAVA_HOME=/usr/local/java/jdk1.8.0_141  #java包下载的位置
export PATH=$JAVA_HOME/bin:$PATH
export CLASSPATH=.:$JAVA_HOME/bin/dt.jar:$JAVA_HOME/bin/tools.jar

刷新，让配置生效

source /etc/profile

测试

java -version