Apache 的虛擬主機就是在一臺服務器上運行多個網站，每個虛擬主機都可以綁定獨立的域名，為這些域名可以指定單獨的目錄，訪問這些域名的時候，Apache 會打開對應目錄里面的東西。配置 Apache 的虛擬主機，只需要去修改 Apache 的配置文件。虛擬主機的英文是 virtual host，所以，你的 Apache 配置虛擬主機的文件可能是 httpd.conf ，也可能是跟 virtual host 這個名字相關的文件，比如 vhost.conf ，具體要使用哪一個配置文件，你需要自己去判斷。

新浪微博虛擬機開發配置步驟及介紹。

1、由于后面虛擬機中需要用到Rewrite所以先編輯Apache的conf目錄下的httpd.conf文件。（可根據實際需要操作）

添加mod_rewrite.so模塊支持。去掉下列行中前面的#號。

LoadModule rewrite_module modules/mod_rewrite.so

2、配置apache支持虛擬機。這一步很重要。

代碼如下:
# Virtual hosts
#Include conf/extra/httpd-vhosts.conf

找到 上面相關文本，去掉#Include conf/extra/httpd-vhosts.conf前的#。

代碼如下:
# Virtual hosts
Include conf/extra/httpd-vhosts.conf

保存退出。

3、編輯conf目錄下extra文件夾下的httpd-vhosts.conf。

去掉實例配置，添加新有配置。以新浪微博為例，配置文件如下：

## Virtual Hosts## If you want to maintain multiple domains/hostnames on your# machine you can setup VirtualHost containers for them. Most configurations# use only name-based virtual hosts so the server doesn't need to worry about# IP addresses. This is indicated by the asterisks in the directives below.## Please see the documentation at# <URL:http://httpd.apache.org/docs/2.2/vhosts/># for further details before you try to setup virtual hosts.## You may use the command line option '-S' to verify your virtual host# configuration.## Use name-based virtual hosting.#NameVirtualHost *:80## VirtualHost example:# Almost any Apache directive may go into a VirtualHost container.# The first VirtualHost section is used for all requests that do not# match a ServerName or ServerAlias in any <VirtualHost> block.#<VirtualHost *:80>#管理員郵箱ServerAdmin jiangfeng3@staff.sina.com.cn #項目根目錄 DocumentRoot "D:/htdocs/frame_export" #域名 ServerName test.t.sina.com.cn #別名 ServerAlias test.t.sina.com.cn#錯誤日志路徑ErrorLog "logs/test.t.sins.com.cn-error.log"CustomLog "logs/test.t.sins.com.cn-access.log" commonRewriteEngine on#重寫規則，可根據實際需要添加RewriteRule ^/(.*)$ /apps/index.php [L]</VirtualHost>

4、編輯本地host文件，以windows為例

進入C:/Windows/System32/drivers/etc

記事本打開hosts文件

最后添加

127.0.0.1 localhost
127.0.0.1 test.t.sina.com.cn

例子：

# Copyright (c) 1993-2009 Microsoft Corp.## This is a sample HOSTS file used by Microsoft TCP/IP for Windows.## This file contains the mappings of IP addresses to host names. Each# entry should be kept on an individual line. The IP address should# be placed in the first column followed by the corresponding host name.# The IP address and the host name should be separated by at least one# space.## Additionally, comments (such as these) may be inserted on individual# lines or following the machine name denoted by a '#' symbol.## For example:## 102.54.94.97 rhino.acme.com # source server# 38.25.63.10 x.acme.com # x client host# localhost name resolution is handled within DNS itself.127.0.0.1 localhost# ::1 localhost127.0.0.1 test.t.sina.com.cn