CodeIgniter中.htaccess重写规则兼容修改方案问询

现有基于CodeIgniter开发的网站，原开发者未使用框架默认路由，自定义了.htaccess重写规则，导致路由逻辑混乱。需要保留原有.htaccess规则生效的同时，支持形如controller_name/function_name/$param1/$param2的SEO友好URL（例如已在routes.php配置的$route['download/(:any)/(:any)/(:any)'] = '/controller/download/$1/$2/$3'当前未生效），需修改.htaccess避免规则冲突。

原有.htaccess规则如下：

RewriteEngine on 

DirectoryIndex index.php

RewriteRule ^google[0-9a-f]+.html$ - [L]

RewriteRule ^(shop.html)$   index.php?mod=shop&name=$1 [L,NC]

RewriteRule ^(ref.html)$   index.php?mod=ref&name=$1 [L,NC]

RewriteRule ^(refs.html)$   index.php?mod=aff&s=refs&ad=$2  [L,NC]

RewriteRule ^(vip-membership.html)$   index.php?mod=aff&s=top [L,NC]

RewriteRule ^(dds.html)$   index.php?mod=aff&s=dds [L,NC]

RewriteRule ^(news.html)$   index.php?mod=news [L,NC]

RewriteRule ^(document)-(.*)-(.*).html$   index.php?mod=aff&s=document&id=$3 [L,NC]

RewriteRule ^(category)-(.*)-(.*).html$   index.php?mod=aff&s=category&top=$3 [L,NC]

RewriteRule ^(news)_(.*)_(.*).html$   index.php?mod=news&s=detail&name=$1&id=$2 [L,NC]

RewriteRule ^(.*)_news.html$   index.php?mod=news&s=category&catname=$1&id=$2 [L,NC]

RewriteRule ^(page)-(.*).html$   index.php?mod=aff&s=page&name=$2 [L,NC]

RewriteRule ^([a-z0-9_-]+).html$   index.php?mod=page&name=$1 [L,NC]

RewriteRule ^([a-z0-9_-]+).html$   index.php?mod=page&name=$1 [L,NC]


 
RedirectMatch 301 ^/panel$ /index.php/panel

RedirectMatch 301 ^/2017-books.html$   /dhtc-2017-books.html



php_value max_input_vars 3000
php_value suhosin.get.max_vars 3000
php_value suhosin.post.max_vars 3000
php_value suhosin.request.max_vars 3000

核心思路：原有规则均匹配.html结尾的URL，而CodeIgniter的路由URL通常不带.html后缀，因此可以在原有规则之后添加针对非.html请求的重写规则，将其交给CI的index.php处理，同时排除实际存在的文件和目录，避免静态资源（如CSS、JS、图片）被错误重写。

修改步骤 #

1. 保留原有所有.htaccess规则不变；
2. 在原有规则的RewriteRule部分之后、RedirectMatch之前，添加以下CI路由重写规则：

# 排除实际存在的文件和目录，避免静态资源被重写
RewriteCond %{REQUEST_FILENAME} !-f
RewriteCond %{REQUEST_FILENAME} !-d
# 处理非.html结尾的请求，交给CI的index.php
RewriteRule ^(.*)$ index.php/$1 [L]

修改后的完整.htaccess #

RewriteEngine on 

DirectoryIndex index.php

RewriteRule ^google[0-9a-f]+.html$ - [L]

RewriteRule ^(shop.html)$   index.php?mod=shop&name=$1 [L,NC]

RewriteRule ^(ref.html)$   index.php?mod=ref&name=$1 [L,NC]

RewriteRule ^(refs.html)$   index.php?mod=aff&s=refs&ad=$2  [L,NC]

RewriteRule ^(vip-membership.html)$   index.php?mod=aff&s=top [L,NC]

RewriteRule ^(dds.html)$   index.php?mod=aff&s=dds [L,NC]

RewriteRule ^(news.html)$   index.php?mod=news [L,NC]

RewriteRule ^(document)-(.*)-(.*).html$   index.php?mod=aff&s=document&id=$3 [L,NC]

RewriteRule ^(category)-(.*)-(.*).html$   index.php?mod=aff&s=category&top=$3 [L,NC]

RewriteRule ^(news)_(.*)_(.*).html$   index.php?mod=news&s=detail&name=$1&id=$2 [L,NC]

RewriteRule ^(.*)_news.html$   index.php?mod=news&s=category&catname=$1&id=$2 [L,NC]

RewriteRule ^(page)-(.*).html$   index.php?mod=aff&s=page&name=$2 [L,NC]

RewriteRule ^([a-z0-9_-]+).html$   index.php?mod=page&name=$1 [L,NC]

RewriteRule ^([a-z0-9_-]+).html$   index.php?mod=page&name=$1 [L,NC]

# 添加CI路由支持规则
RewriteCond %{REQUEST_FILENAME} !-f
RewriteCond %{REQUEST_FILENAME} !-d
RewriteRule ^(.*)$ index.php/$1 [L]

RedirectMatch 301 ^/panel$ /index.php/panel

RedirectMatch 301 ^/2017-books.html$   /dhtc-2017-books.html

php_value max_input_vars 3000
php_value suhosin.get.max_vars 3000
php_value suhosin.post.max_vars 3000
php_value suhosin.request.max_vars 3000

说明 #

• 原有.html结尾的URL会优先匹配原有规则，不受影响；
• 非.html结尾的URL（如download/file/123/abc）会被新规则捕获，传递给CI的index.php，此时routes.php中配置的路由规则即可正常生效；
• RewriteCond %{REQUEST_FILENAME} !-f和!-d确保实际存在的文件（如style.css）和目录不会被重写，保证静态资源正常访问。

内容的提问来源于stack exchange，提问作者zkanoca