Jenkins安装

1.wget -O /etc/yum.repos.d/jenkins.repo https://pkg.jenkins.io/redhat-stable/jenkins.repo
2.rpm --import https://pkg.jenkins.io/redhat-stable/jenkins.io.key
3.yum install -y jenkins #默认安装最新的Jenkins
4.service jenkins start #启动Jenkins

安装jdk1.8
1.java -version #查看当前版本