mac系统利用命令安装jenkins

1> 安装Homebrew

/usr/bin/ruby -e "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/master/install)"

2> 安装Jenkins

brew install jenkins

此时会提示：

Updating Homebrew...
jenkins: Java 1.8 is required to install this formula.
JavaRequirement unsatisfied!
You can install with Homebrew-Cask:

　　　brew cask install homebrew/cask-versions/adoptopenjdk8

 You can download from: https://www.oracle.com/technetwork/java/javase/downloads/index.html Error: An unsatisfied requirement failed this build. 

3> 安装上面的提示安装Java

　　brew cask install homebrew/cask-versions/adoptopenjdk8

安装完成后再次执行步骤2的命令，安装成功后会提示：

Note: When using launchctl the port will be 8080.

To have launchd start jenkins now and restart at login:
  brew services start jenkins
Or, if you don't want/need a background service you can just run:
  jenkins

4> 启动Jenkins，然后在浏览器中输入http://localhost:8080

brew services start jenkins

5> 停止Jenkins

brew services stop jenkins