Linux 安装 java jdk

一、源码安装

• 如果失效直接进入官网下载

wget http://download.oracle.com/otn-pub/java/jdk/8u91-b14/jdk-8u91-linux-x64.tar.gz  
tar zxf jdk-8u91-linux-x64.tar.gz  
mv jdk-8u91-linux-x64 /usr/local/jdk  

修改环境变量

vim /etc/profile  
export JAVA_HOME=/usr/local/jdk  
export JAVA_BIN=/usr/local/jdk/bin  
export PATH=$PATH:$JAVA_HOME/bin  
export CLASSPATH=.:$JAVA_HOME/lib/dt.jar:$JAVA_HOME/lib/tools.jar  
export JAVA_HOME JAVA_BIN PATH CLASSPATH  
source /etc/profile  

测试

java -version
显示：即安装成功

openjdk version "1.8.0_77"  
OpenJDK Runtime Environment (build 1.8.0_77-b03)  
OpenJDK 64-Bit Server VM (build 25.77-b03, mixed mode)  

二、YUM 源码安装

• 安装
  yum install java-1.7.0