centos下在线安装配置jdk

1.查看yum库中的jdk

# yum -y list java*

java-1.7.0-openjdk.x86_64 1:1.7.0.79-2.5.5.1.el6_6 updates

java-1.7.0-openjdk-demo.x86_64 1:1.7.0.79-2.5.5.1.el6_6 updates

java-1.7.0-openjdk-devel.x86_64 1:1.7.0.79-2.5.5.1.el6_6 updates

java-1.7.0-openjdk-javadoc.noarch 1:1.7.0.79-2.5.5.1.el6_6 updates

java-1.7.0-openjdk-src.x86_64 1:1.7.0.79-2.5.5.1.el6_6 updates

2. 安装1.7版的的jdk

# yum -y install java-1.6.0-openjdk*

3.查看yum安装java结果，查看版本号

# java -version

java version "1.7.0_79"

OpenJDK Runtime Environment (rhel-2.5.5.1.el6_6-x86_64 u79-b14)

OpenJDK 64-Bit Server VM (build 24.79-b02,mixed mode)
表示安装成功