apache2.2.21下为codeigniter配置url地址重写

1、首先打开apache的配置文件，httpd.conf，找到#LoadModule rewrite_module modules/mod_rewrite.so,去掉前面的#号，开启mod_rewrite模块

2、找到

<Directory />

Options FollowSymLinks AllowOverride none Order deny,allow Deny from all </Directory>

修改为：

<Directory />Options FollowSymLinksAllowOverride AllOrder deny,allowDeny from all
</Directory>

3、找到

<Directory "D:/Program Files (x86)/Web/www">

# Possible values for the Options directive are "None", "All",

# or any combination of:#   Indexes Includes FollowSymLinks SymLinksifOwnerMatch ExecCGI MultiViews## Note that "MultiViews" must be named *explicitly* --- "Options All"# doesn't give it to you.## The Options directive is both complicated and important.  Please see# http://httpd.apache.org/docs/2.2/mod/core.html#options# for more information.#Options Indexes FollowSymLinks## AllowOverride controls what directives may be placed in .htaccess files.# It can be "All", "None", or any combination of the keywords:#   Options FileInfo AuthConfig Limit#AllowOverride none## Controls who can get stuff from this server.#Order allow,denyAllow from all</Directory>

修改为：

<Directory "D:/Program Files (x86)/Web/www">## Possible values for the Options directive are "None", "All",# or any combination of:#   Indexes Includes FollowSymLinks SymLinksifOwnerMatch ExecCGI MultiViews## Note that "MultiViews" must be named *explicitly* --- "Options All"# doesn't give it to you.## The Options directive is both complicated and important.  Please see# http://httpd.apache.org/docs/2.2/mod/core.html#options# for more information.#Options Indexes FollowSymLinks## AllowOverride controls what directives may be placed in .htaccess files.# It can be "All", "None", or any combination of the keywords:#   Options FileInfo AuthConfig Limit#AllowOverride All## Controls who can get stuff from this server.#Order allow,denyAllow from all</Directory>

以上主要是修改 AllowOverride one为 AllowOverride All

4、打开你的ci目录的application/config下的config.php，查找$config['index_page']变量，将它的值留空

5、为ci编写.htaccess文件，站长的CI安装在网站根目录的friend目录下，应此.htaccess的内容如下：

<IfModule mod_rewrite.c>
RewriteEngine on
RewriteCond %{REQUEST_FILENAME} !-d
RewriteCond %{REQUEST_FILENAME} !-f
RewriteRule ^(.*)$ /friend/index.php/$1 [QSA,PT,L]
</IfModule>

如果你的ci就是安装在网站根目录，那么，你的.htaccess内容应该为：

<IfModule mod_rewrite.c>
RewriteEngine on
RewriteCond %{REQUEST_FILENAME} !-d
RewriteCond %{REQUEST_FILENAME} !-f
RewriteRule ^(.*)$ /index.php/$1 [QSA,PT,L]
</IfModule>

嗯，相信大家都看出区别了，就是多了一个ci的安装目录，但是却很重要。

6、重启apache，搞定。