I recently installed Tomcat 7 and got it working with Eclipse Helios on Mac OSX Lion.
Install Homebrew:
/usr/bin/ruby -e "$(curl -fsSL https://raw.github.com/gist/323731)"
Install Tomcat:
sudo brew install tomcat
Test the Tomcat install by starting the server:
sudo catalina start
Set it so that you can start it without using sudo:
sudo chgrp -R your_user_name
sudo chmod -R g+rw /usr/local/Cellar/tomcat/
Stop the Tomcat server (if you have not already):
sudo catalina stop
Test the change to the file permissions for Tomcat by starting the server as yourself without sudo:
catalina startca
Stop the Tomcat server (we want Eclipse to do the starting and stopping):
catalina stop
In Eclipse, open the 'Servers' view and add a new Tomcat server. Key point is to make sure to change the name of the server so that it does not contain any spaces! If you don't have a 'Servers' view, you need to go download 'Eclipse IDE for Java EE Developers'.
All done! You should now be able to start and stop Tomcat from Eclipse. :)
首先保證brew命令能夠正常使用；
1. 搜索tomcat是否存在：
brew search tomcat
2. 安裝tomcat：
brew install tomcat
3. 檢查是否安裝成功：
catalina -h
4. 運行tomcat：
catalina run
Tomcat的默認端口是8080，如果運行成功可通過http://localhost:8080訪問
webapp的根目錄(CATALINA_HOME)為:/usr/local/Cellar/tomcat/7.0.33/libexec/webapps/ROOT/
附:
Mac OSX軟件包管理工具brew怎么安裝?應該有很多朋友有用到這個brew工具，那么這個工具如何安裝及下載的呢？
brew 又叫Homebrew，是Mac OSX上的軟件包管理工具，能在Mac中方便的安裝軟件或者卸載軟件， 只需要一個命令， 非常方便，brew類似ubuntu系統下的apt-get的功能。
brew安裝方法
brew 的官方網站對brew的用法進行了詳細的描述安裝方法：
在Mac中打開Termal: 輸入命令：
ruby -e "$(curl -fsSL https://raw.github.com/mxcl/homebrew/go)"
brew list 列出已安裝的軟件
brew update 更新brew
brew home 用瀏覽器打開brew的官方網站
brew info 顯示軟件信息
brew deps 顯示包依賴
brew search /wge*/
/wge*/是個正則表達式， 需要包含在/中
brew install wget
使用brew卸載軟件，卸載更方便了
brew uninstall wget
brew install git