我有一个网站,似乎不能从非www重定向到www。
我的Apache配置如下:
RewriteEngine On
### re-direct to www
RewriteCond %{http_host} !^www.example.com [nc]
RewriteRule ^(.*)$ http://www.example.com/$1 [r=301,nc]
我错过了什么?
我有一个网站,似乎不能从非www重定向到www。
我的Apache配置如下:
RewriteEngine On
### re-direct to www
RewriteCond %{http_host} !^www.example.com [nc]
RewriteRule ^(.*)$ http://www.example.com/$1 [r=301,nc]
我错过了什么?
当前回答
<VirtualHost *:80>
ServerAlias example.com
RedirectMatch permanent ^/(.*) http://www.example.com/$1
</VirtualHost>
这将重定向不仅域名,而且内部 pages.like…… example.com/abcd.html ==> www.example.com/abcd.html example.com/ab/cd.html ? ef = gh ==> www.example.com/ab/cd.html ? ef = gh
其他回答
这很简单!
RewriteEngine On
RewriteCond %{HTTP_HOST} !^www\. [NC]
RewriteRule ^(.*)$ http://www.%{HTTP_HOST}%{REQUEST_URI} [R=301,L]
这对我来说很管用:
RewriteCond %{HTTP_HOST} ^(?!www.domain.com).*$ [NC]
RewriteRule ^(.*)$ http://www.domain.com$1 [R=301,L]
在将所有域重定向到www子域时,我使用前瞻性模式(?!www.domain.com)来排除www子域,以避免Apache中的无限重定向循环。
这与许多其他建议类似,只是做了一些增强:
不需要硬编码域(适用于接受多个域或环境之间的vhosts) 保留方案(http/https),忽略前面%{REQUEST_URI}规则的影响。 路径部分不受%{REQUEST_URI}等先前rewriterrules的影响。 重写HTTP_HOST} !(数控) RewriteRule ^(.*)$ %{ REQUEST_SCHEME}: / / www. % {HTTP_HOST} / 1美元(R = 301 L)
RewriteCond %{HTTP_HOST} ^!example.com$ [NC]
RewriteRule ^(.*)$ http://www.example.com/$1 [R=301,L]
This starts with the HTTP_HOST variable, which contains just the domain name portion of the incoming URL (example.com). Assuming the domain name does not contain a www. and matches your domain name exactly, then the RewriteRule comes into play. The pattern ^(.*)$ will match everything in the REQUEST_URI, which is the resource requested in the HTTP request (foo/blah/index.html). It stores this in a back reference, which is then used to rewrite the URL with the new domain name (one that starts with www).
[NC]表示不区分大小写的模式匹配,[R=301]表示使用代码301进行外部重定向(资源永久移动),[L]停止所有进一步重写,并立即重定向。
重定向代码的非www => www和相反的www =>非www。在.htaccess文件中没有硬编码域和方案。因此,源域名和http/https版本将被保留。
Apache 2.4及更新版本
www => www:
RewriteEngine On
RewriteCond %{HTTP_HOST} !^www\. [NC]
RewriteRule ^ %{REQUEST_SCHEME}://www.%{HTTP_HOST}%{REQUEST_URI} [R=301,L]
WWW =>非WWW:
RewriteEngine On
RewriteCond %{HTTP_HOST} ^www\.(.*)$ [NC]
RewriteRule ^ %{REQUEST_SCHEME}://%1%{REQUEST_URI} [R=301,L]
注意:在Apache 2.2上无效,%{REQUEST_SCHEME}不可用。为了与Apache 2.2兼容,请使用下面的代码或将%{REQUEST_SCHEME}替换为固定的http/https。
Apache 2.2及更新版本
www => www:
RewriteEngine On
RewriteCond %{HTTPS} off
RewriteCond %{HTTP_HOST} !^www\. [NC]
RewriteRule ^ http://www.%{HTTP_HOST}%{REQUEST_URI} [R=301,L]
RewriteCond %{HTTPS} on
RewriteCond %{HTTP_HOST} !^www\. [NC]
RewriteRule ^ https://www.%{HTTP_HOST}%{REQUEST_URI} [R=301,L]
... 或者更短的版本……
RewriteEngine On
RewriteCond %{HTTP_HOST} !^www\. [NC]
RewriteCond %{HTTPS}s ^on(s)|offs
RewriteRule ^ http%1://www.%{HTTP_HOST}%{REQUEST_URI} [R=301,L]
WWW =>非WWW:
RewriteEngine On
RewriteCond %{HTTPS} off
RewriteCond %{HTTP_HOST} ^www\.(.*)$ [NC]
RewriteRule ^ http://%1%{REQUEST_URI} [R=301,L]
RewriteCond %{HTTPS} on
RewriteCond %{HTTP_HOST} ^www\.(.*)$ [NC]
RewriteRule ^ https://%1%{REQUEST_URI} [R=301,L]
... 更短的版本不可能,因为%N仅可从上次RewriteCond…