具有不同域的图像的URL重写 [英] URL rewriting for images with different domains

问题描述

我想使用如下网址:

http://mydomain.com/320x200/server/path/to/my/image.jpg

您可以在其中找到 3个参数以进行重写:

Where you can find 3 parameters to retrieve for rewriting :

1. 320x200:可选参数，可以是两个数字(例如"320x200")，也可以是单个数字(例如"320x")或为空(仅"x")
2. server:必需(这是找到托管图像的服务器的特定参数，但在这种情况下并不重要)
3. path/to/my/image.jpg:必需

1. 320x200 : optional parameter, can be two numbers (like "320x200"), OR a single number (like "320x") OR empty (only "x")
2. server : required (this is a specific parameter to find a server where image is hosted, but does not really matter for this case)
3. path/to/my/image.jpg : required

并使用另一个域将其重写，如下所示:

and rewrite it with another domain like the followings :

http://myotherdomain.com/320/200/server/path/to/my/image.jpg

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我尝试了以下重写规则，但不起作用:

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I tried the following rewrite rules but it is not working :

RewriteRule ^([0-9]+)x([0-9]+)/([a-zA-Z0-9]+)/([a-zA-Z0-9/.]+)$ htp://myotherdomain.com/$1/$2/$3/$4 [L]

RewriteRule ^([0-9]+)x/([a-zA-Z0-9]+)/([a-zA-Z0-9/.]+)$ htp://myotherdomain.com/$1/$2/$3 [L]

RewriteRule ^x/([a-zA-Z0-9]+)/([a-zA-Z0-9/.]+)$ htp://myotherdomain.com/$1/$2 [L]

为什么不起作用?

通过regexplanet.com之类的网站进行测试时，这3个正则表达式可以正常工作

The 3 regex are working when tested through a website like regexplanet.com

我试图清除浏览器缓存，重新启动Apache，删除cookie，...仍然无法正常工作！

I tried to clear browser cache, restart Apache, remove cookies, ... still not working !

感谢您的帮助

最后，问题是我的.htaccess文件未正确保存(不知道为什么).

Finally, the problem was that my .htaccess file was not correctly saved (don't know why).

我刚刚关闭并再次打开.htaccess，一切正常！

I just closed and opened the .htaccess again, everything ok !

推荐答案

您应按分组划分工作.不必费心将x转换为/，只是不要捕获它.

You should divide the work by grouping. Don't bother converting x to / just don't capture it.

RewriteRule ^([0-9]+)x([0-9]+/)([a-zA-Z0-9]+)/([a-zA-Z0-9/.]+)$ http://myotherdomain.com/$1/$2$3/$4 [L]

RewriteRule ^([a-zA-Z0-9]+)/([a-zA-Z0-9/.]+)$ http://myotherdomain.com/$1/$2 [L]

• ([0-9]+)分别捕获您的两个分辨率参数.
• (?:....)?是一个非捕获性分组，它是可选的.
• ([0-9]+) captures your two resolutions parameters individually.
• (?:....)? is a non capturing grouping rendered optional.

可选项是一个陷阱.不要使用它->第二条规则.

The optionality is a trap. Don't use it -> second rule.

如果另一个域最终成为同一个域:

If the other domain end up being the same domain:

RewriteCond %{REQUEST_URI} ![0-9]+/[0-9]+.*$

将防止循环.

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