Can Apache serve a default file instead of a 404?

问题:

We have Apache serving a set of files from a particular directory. If a file requested in that directory does not exist, can I make Apache return a default file - instead of a 404? If so, how?

回答1:

This can be achieved making use of .htaccess.

Check this WebReference article on the topic.

Basically you only need a file name .htaccess in your directory which contains

ErrorDocument 404 /YourCustomErrorPage.html 

Of course any other file can be served too.

回答2:

What kind of file? Is it a static file? With Apache you can set custom error pages.

回答3:

Be careful returning non-404s for any random URI request. It may impact your Google rankings if they notice it and consider it part of a link farm or other such blackhat SEO technique.