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.htaccess设置301跳转及常用技巧整理
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在虚拟主机环境中，基本上都是Apache环境。Apache的伪静态的设置，都是在网站根目录设置.htaccess文件，在.htaccess文件中无论是伪静态，
还是301跳转，甚至是防盗链和禁止某个IP的访问都可以很简单的设置。
关于.htaccess文件的设置和实际应用是相当广泛的，很多功能都可以利用这个小小的文件实现，只不过我们普通用户使用的并不多而已，比如我们常用的301跳转就医带WWW的二级域名跳向不带WWW的顶级域名，
或者一防盗链，或是禁止IP等。这篇文章我们就介绍几种，.htaccess文件的常见的用法。
强制www域名301跳转
直接将域名替换成自己的域名即可实现非WWW跳转到WWW域名。
RewriteEngine on
RewriteCond %{HTTP_HOST} ^pazzn\.com [NC]
RewriteRule ^(.*)$ https://www.pazzn.com/$1 [L,R=301,NC]
强制非WWW域名301跳转
如果访问www域名前缀，会跳转到非www域名，域名替换成自己的
RewriteEngine On
RewriteCond %{HTTP_HOST} !^pazzn.com$ [NC]
RewriteRule ^(.*)$ http://pazzn.com/$1 [L,R=301]
强制https跳转地址
网站如果采用SSL证书，则一般需要强制跳转https路径，这里需要添加强制80端口的跳转，服务器也要开启443的端口。
RewriteEngine On
RewriteCond %{SERVER_PORT} 80
RewriteRule ^(.*)$ https://www.pazzn.com/$1 [R,L]
阻止无用的蜘蛛爬取
RewriteEngine On
RewriteCond %{HTTP_USER_AGENT} (^$|FeedDemon|JikeSpider|Indy Library|Alexa Toolbar|AskTbFXTV|AhrefsBot|CrawlDaddy|CoolpadWebkit|Java|Feedly|UniversalFeedParser|ApacheBench|Microsoft URL Control|Swiftbot|ZmEu|oBot|jaunty|Python-urllib|lightDeckReports Bot|YYSpider|DigExt|HttpClient|MJ12bot|heritrix|EasouSpider|Ezooms) [NC]
RewriteRule ^(.*)$ - [F]
将A页面301跳转到B页面Redirect 301 /a.html https://www.pazzn.com/b.html
全部重定向到B网站RewriteEngine on
RewriteRule ^(.*)$ http://www.pazzn.com/$1 [R=301,L]
阻止某个IP访问Order deny,allow
Allow from all
Deny from 127.0.0.1
强制/斜杠结尾路径RewriteCond %{REQUEST_URI} /+[^\.]+$
RewriteRule ^(.+[^/])$ %{REQUEST_URI}/ [R=301,L]
取消/斜杠结尾RewriteCond %{REQUEST_FILENAME} !-d
RewriteRule ^(.*)/$ /$1 [R=301,L]
禁止被其他网页套用SetEnvIf Request_URI "/starry-night" allow_framing=true
Header set X-Frame-Options SAMEORIGIN env=!allow_framing
禁止图片盗链RewriteEngine on
RewriteCond %{HTTP_REFERER} !^$
RewriteCond %{HTTP_REFERER} !^http(s)?://(.+\.)?feiniaomy.com [NC]
RewriteRule \.(jpg|jpeg|png|gif|bmp)$ - [NC,F,L]
RewriteEngine On
RewriteCond %{HTTP_USER_AGENT} (^$|FeedDemon|JikeSpider|Indy Library|Alexa Toolbar|AskTbFXTV|AhrefsBot|CrawlDaddy|CoolpadWebkit|Java|Feedly|UniversalFeedParser|ApacheBench|Microsoft URL Control|Swiftbot|ZmEu|oBot|jaunty|Python-urllib|lightDeckReports Bot|YYSpider|DigExt|HttpClient|MJ12bot|heritrix|EasouSpider|Ezooms) [NC]
RewriteRule ^(.*)$ - [F]
Redirect 301 /a.html https://www.pazzn.com/b.html
全部重定向到B网站RewriteEngine on
RewriteRule ^(.*)$ http://www.pazzn.com/$1 [R=301,L]
阻止某个IP访问Order deny,allow
Allow from all
Deny from 127.0.0.1
强制/斜杠结尾路径RewriteCond %{REQUEST_URI} /+[^\.]+$
RewriteRule ^(.+[^/])$ %{REQUEST_URI}/ [R=301,L]
取消/斜杠结尾RewriteCond %{REQUEST_FILENAME} !-d
RewriteRule ^(.*)/$ /$1 [R=301,L]
禁止被其他网页套用SetEnvIf Request_URI "/starry-night" allow_framing=true
Header set X-Frame-Options SAMEORIGIN env=!allow_framing
禁止图片盗链RewriteEngine on
RewriteCond %{HTTP_REFERER} !^$
RewriteCond %{HTTP_REFERER} !^http(s)?://(.+\.)?feiniaomy.com [NC]
RewriteRule \.(jpg|jpeg|png|gif|bmp)$ - [NC,F,L]
RewriteEngine on
RewriteRule ^(.*)$ http://www.pazzn.com/$1 [R=301,L]
Order deny,allow
Allow from all
Deny from 127.0.0.1
强制/斜杠结尾路径RewriteCond %{REQUEST_URI} /+[^\.]+$
RewriteRule ^(.+[^/])$ %{REQUEST_URI}/ [R=301,L]
取消/斜杠结尾RewriteCond %{REQUEST_FILENAME} !-d
RewriteRule ^(.*)/$ /$1 [R=301,L]
禁止被其他网页套用SetEnvIf Request_URI "/starry-night" allow_framing=true
Header set X-Frame-Options SAMEORIGIN env=!allow_framing
禁止图片盗链RewriteEngine on
RewriteCond %{HTTP_REFERER} !^$
RewriteCond %{HTTP_REFERER} !^http(s)?://(.+\.)?feiniaomy.com [NC]
RewriteRule \.(jpg|jpeg|png|gif|bmp)$ - [NC,F,L]
RewriteCond %{REQUEST_URI} /+[^\.]+$
RewriteRule ^(.+[^/])$ %{REQUEST_URI}/ [R=301,L]
RewriteCond %{REQUEST_FILENAME} !-d
RewriteRule ^(.*)/$ /$1 [R=301,L]
禁止被其他网页套用SetEnvIf Request_URI "/starry-night" allow_framing=true
Header set X-Frame-Options SAMEORIGIN env=!allow_framing
禁止图片盗链RewriteEngine on
RewriteCond %{HTTP_REFERER} !^$
RewriteCond %{HTTP_REFERER} !^http(s)?://(.+\.)?feiniaomy.com [NC]
RewriteRule \.(jpg|jpeg|png|gif|bmp)$ - [NC,F,L]
SetEnvIf Request_URI "/starry-night" allow_framing=true
Header set X-Frame-Options SAMEORIGIN env=!allow_framing
RewriteEngine on
RewriteCond %{HTTP_REFERER} !^$
RewriteCond %{HTTP_REFERER} !^http(s)?://(.+\.)?feiniaomy.com [NC]
RewriteRule \.(jpg|jpeg|png|gif|bmp)$ - [NC,F,L]
总结：以上就是apache中.htaccess文件的常用几中设置的方法，但要注意的是，在编辑apache的.htaccess文件时，使用一些代码编辑器进行编辑。
