Apache VirtualHost仅在使用Codeigniter的主页中工作

我在Apache2.2下的虚拟主机方面遇到了一些问题

我想在本地环境中托管一些站点的开发版本，其中一些使用codeigniter，并能够使用.dev扩展访问它们，因此我可以转到：

- http://myproject.dev to access the local version or
- http://myproject.com to access production version

我已经设置了一些基于名称的虚拟主机，如下所示：

NameVirtualHost localhost  
<VirtualHost localhost>  
    DocumentRoot ".../workspace.web/" 
    ServerName localhost 
</VirtualHost>

NameVirtualHost myproject.dev  
<VirtualHost myproject.dev>  
    DocumentRoot ".../workspace.web/myproject.com/htdocs"
    ServerName myproject.dev 
</VirtualHost>

主页运行良好，但codeigniter中的子目录正在崩溃。比如说

myproject.dev/whatever

返回404错误

我不确定htaccess中的任何规则是否会导致这种情况，或者仅仅是因为对我在这里所做的事情理解不当。我的htaccess如下所示：

#RewriteEngine on
#RewriteCond $1 !^(index\.php|robots\.txt|images|css|js|captcha|inc|html|tmp|captcha)
#RewriteRule ^(.*)$ /index.php/$1 [QSA,L]


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

# BEGIN Compress text files
<ifModule mod_deflate.c>
  AddOutputFilterByType DEFLATE text/html text/plain text/xml application/xml application/xhtml+xml text/css text/javascript application/javascript application/x-javascript
</ifModule>
# END Compress text files

# BEGIN Expire headers
<ifModule mod_expires.c>
  ExpiresActive On
  ExpiresDefault "access plus 5 seconds"
  ExpiresByType image/x-icon "access plus 2592000 seconds"
  ExpiresByType image/jpeg "access plus 2592000 seconds"
  ExpiresByType image/png "access plus 2592000 seconds"
  ExpiresByType image/gif "access plus 2592000 seconds"
  ExpiresByType application/x-shockwave-flash "access plus 2592000 seconds"
  ExpiresByType text/css "access plus 604800 seconds"
  ExpiresByType text/javascript "access plus 216000 seconds"
  ExpiresByType application/javascript "access plus 216000 seconds"
  ExpiresByType application/x-javascript "access plus 216000 seconds"
  ExpiresByType text/html "access plus 600 seconds"
  ExpiresByType application/xhtml+xml "access plus 600 seconds"
</ifModule>
# END Expire headers

# BEGIN Cache-Control Headers
<ifModule mod_headers.c>
  <filesMatch "\.(ico|jpe?g|png|gif|swf)$">
    Header set Cache-Control "public"
  </filesMatch>
  <filesMatch "\.(css)$">
    Header set Cache-Control "public"
  </filesMatch>
  <filesMatch "\.(js)$">
    Header set Cache-Control "private"
  </filesMatch>
  <filesMatch "\.(x?html?|php)$">
    Header set Cache-Control "private, must-revalidate"
  </filesMatch>
</ifModule>
# END Cache-Control Headers

# BEGIN Turn ETags Off
FileETag None
# END Turn ETags Off 

有人能提供一些线索吗

#RewriteEngine on
#RewriteCond $1 !^(index\.php|robots\.txt|images|css|js|captcha|inc|html|tmp|captcha)
#RewriteRule ^(.*)$ /index.php/$1 [QSA,L]


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

# BEGIN Compress text files
<ifModule mod_deflate.c>
  AddOutputFilterByType DEFLATE text/html text/plain text/xml application/xml application/xhtml+xml text/css text/javascript application/javascript application/x-javascript
</ifModule>
# END Compress text files

# BEGIN Expire headers
<ifModule mod_expires.c>
  ExpiresActive On
  ExpiresDefault "access plus 5 seconds"
  ExpiresByType image/x-icon "access plus 2592000 seconds"
  ExpiresByType image/jpeg "access plus 2592000 seconds"
  ExpiresByType image/png "access plus 2592000 seconds"
  ExpiresByType image/gif "access plus 2592000 seconds"
  ExpiresByType application/x-shockwave-flash "access plus 2592000 seconds"
  ExpiresByType text/css "access plus 604800 seconds"
  ExpiresByType text/javascript "access plus 216000 seconds"
  ExpiresByType application/javascript "access plus 216000 seconds"
  ExpiresByType application/x-javascript "access plus 216000 seconds"
  ExpiresByType text/html "access plus 600 seconds"
  ExpiresByType application/xhtml+xml "access plus 600 seconds"
</ifModule>
# END Expire headers

# BEGIN Cache-Control Headers
<ifModule mod_headers.c>
  <filesMatch "\.(ico|jpe?g|png|gif|swf)$">
    Header set Cache-Control "public"
  </filesMatch>
  <filesMatch "\.(css)$">
    Header set Cache-Control "public"
  </filesMatch>
  <filesMatch "\.(js)$">
    Header set Cache-Control "private"
  </filesMatch>
  <filesMatch "\.(x?html?|php)$">
    Header set Cache-Control "private, must-revalidate"
  </filesMatch>
</ifModule>
# END Cache-Control Headers

# BEGIN Turn ETags Off
FileETag None
# END Turn ETags Off