Jenkins is based on a continuous integration Java development tools for ongoing software release / test project , and monitor the implementation of the work of external calls. In short, automated testing + deployment.
First we need to install jdk , note that currently only supports jenkins jdk8, do not download a later version of jdk
Official website address: https://www.oracle.com/technetwork/java/javase/downloads/index.html
Drop-down selection this version:
Accept the license agreement, and then choose to install this package:
After the download is complete click the installation package, follow the prompts to complete the installation.
Go to the finder/Library/Java/JavaVirtualMachines/？？？.jdk/Contents/Home
Where ???is your downloaded version, because I'm afraid of the future to update this version did not lead to invalid simply copy my command, so a reminder, replace it with your own downloadable version.
Contents of the document under which the Home folder is the root directory of the JDK.
By vim .bash_profileOpen Startup file commands, add content:
$ export JAVA_HOME=/Library/Java/JavaVirtualMachines/jdk1.8.0_191.jdk/Contents/Home(Enter vim, press i to enter edit mode addition is complete, press ESC, Enter.. ": Wq" to save and exit)
Import configuration:
$ source .bash_profileIn the input terminal java -version, to verify successful installation:
Jenkins started in two ways:
1. The first method is to use open Tomcat:
official website address: http://tomcat.apache.org/
This version will be able to choose:
Then choose this:
Unzip Tomcat to a directory, it is recommended to unpack /Users/用户/Library, easy to operate, the terminal cdto /Users/用户/Library/Tomcat/binthe next, $ ./startup.shto start Tomcat.
到官网下载Jenkins.war包，官网地址：https://jenkins.io/，点下载然后选这个：
将jenkins.war文件放入Tomcat下的webapps目录下，启动Tomcat时，会自动在webapps目录下建立jenkins目录，在地址栏上需要输入localhost:8080/jenkins，就可以访问Jenkins了。
如需停止Tomcat，终端/Users/用户/Library/Tomcat/bin下输入./shutdown.sh。
2. 第二种启动方法，下载Jenkins.war包，切换到jenkins.war存放的目录，输入如下命令：
$ java -jar jenkins.war如果需要修改端口可以使用如下命令：
$ java -jar jenkins.war --httpPort=8081然后在浏览器中（推荐用火狐/谷歌）输入localhost:8081，localhost可以是本机的ip，也可以是计算机名。就可以打开Jenkins了。
除了用安装包，还可以用终端命令安装Jenkins
首先保证安装过homebrew，没有的话安装方式如下：
$ /usr/bin/ruby -e "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/master/install)"这是他的官网：https://brew.sh/
安装过程中，需要按回车来确定，然后输入密码，之后等一下就好了
# 升级或安装java：
$ brew cask install java
# 安装Jenkins：
$ brew install jenkins
# 启动Jenkins:
# 2.149是指Jenkins的版本号
$ java -jar /usr/local/Cellar/jenkins/2.149/libexec/jenkins.war --httpPort=8080打开浏览器,输入 localhost:8080 就可看到Jenkins的web界面
然后根据页面提示找到给定的路径下生成的初始密码，粘贴到页面文本框就可以了～
获取密码-终端输入命令：sudo vim /var/root/.jenkins/secrets/initialAdminPassword
选择你需要下载的插件，建议新手选择推荐插件，然后就是一顿等待。。。
安装完成之后创建admin账户
然后设置一下端口（这里根据自己情况而定，默认也可以）
安装成功
According to my login account if the above steps to configure, then that is admin, the password is `sudo vim /var/root/.jenkins/secrets/initialAdminPassword