MacOS安装RabbitMQ

# MacOS安装RabbitMQ
## 安装

参考：http://www.rabbitmq.com/download.html

### homebrew安装

安装之前先更新homebrew
```shell
brew update
```

### 安装RabbitMQ server
```shell
brew install rabbitmq
```

安装完成后，终端会出现如下提示
```shell
Man pages can be found in:
  /usr/local/opt/erlang/lib/erlang/man

Access them with `erl -man`, or add this directory to MANPATH.
==> rabbitmq
Management Plugin enabled by default at http://localhost:15672

Bash completion has been installed to:
  /usr/local/etc/bash_completion.d

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

## 使用

RabbitMQ服务的脚本和CLI工具安装在/usr/local/sbin目录下，该目录不在环境变量中，因此需要先把该目录添加到环境变量中，才能使用rabbitmq-server命令。

### 临时添加
```shell
export PATH=$PATH:/usr/local/sbin
```

### 永久添加
Mac中可以通过修改以下几个文件来添加环境变量（按加载顺序排列）：
```shell
/etc/profile /etc/paths ~/.bash_profile ~/.bash_login ~/.profile ~/.bashrc
```

在此，我们修改~/.bash_profile文件。

首先，打开文件：vi ~/.bash_profile

然后在文件末尾添加：export PATH=$PATH:/usr/local/sbin

### 启动RabbitMQ

前台运行
```shell
rabbitmq-server
```

后台运行
```shell
brew service start rabbitmq
```