Mercurial > hg > nginx-site
view xml/cn/docs/http/converting_rewrite_rules.xml @ 2802:4829380a6dae
Fixed a link in the Unit release announcement.
author | Artem Konev <artem.konev@nginx.com> |
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date | Fri, 19 Nov 2021 23:26:03 +0000 |
parents | 9934338f83af |
children |
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<!-- Copyright (C) Igor Sysoev Copyright (C) Nginx, Inc. --> <!DOCTYPE article SYSTEM "../../../../dtd/article.dtd"> <article name="转换rewrite规则" link="/cn/docs/http/converting_rewrite_rules.html" rev="1" lang="cn"> <section name="重定向到主站"> <para> 共享站点的管理员,习惯于<i>只</i>在Apache下使用.htaccess文件配置<i>所有</i>信息,通常会将下面规则 <programlisting> RewriteCond %{HTTP_HOST} example.org RewriteRule (.*) http://www.example.org$1 </programlisting> 翻译成这样: <programlisting> server { listen 80; server_name www.example.org example.org; if ($http_host = example.org) { rewrite (.*) http://www.example.org$1; } ... } </programlisting> </para> <para> 这种做法是错的,复杂而且低效。正确的方式是为<literal>example.org</literal>定义一个单独的服务器: <programlisting> server { listen 80; server_name example.org; return 301 http://www.example.org$request_uri; } server { listen 80; server_name www.example.org; ... } </programlisting> <note> 在0.9.1版本(含)以前,可以这样实现重定向: <programlisting> rewrite ^ http://www.example.org$request_uri?; </programlisting> </note> </para> </section> <section> <para> 再举一个例子,处理一个和刚才相反的逻辑:既不是来自<literal>example.com</literal>,又不是来自<literal>www.example.com</literal>: <programlisting> RewriteCond %{HTTP_HOST} !example.com RewriteCond %{HTTP_HOST} !www.example.com RewriteRule (.*) http://www.example.com$1 </programlisting> 应该按下面这样分开定义<literal>example.com</literal>、<literal>www.example.com</literal>和其他站点: <programlisting> server { listen 80; server_name example.com www.example.com; ... } server { listen 80 default_server; server_name _; return 301 http://example.com$request_uri; } </programlisting> <note> 在0.9.1版本(含)以前,可以这样实现重定向: <programlisting> rewrite ^ http://example.com$request_uri?; </programlisting> </note> </para> </section> <section id="converting_mongrel_rules" name="转化混合规则"> <para> 典型的混合规则如下: <programlisting> DocumentRoot /var/www/myapp.com/current/public RewriteCond %{DOCUMENT_ROOT}/system/maintenance.html -f RewriteCond %{SCRIPT_FILENAME} !maintenance.html RewriteRule ^.*$ %{DOCUMENT_ROOT}/system/maintenance.html [L] RewriteCond %{REQUEST_FILENAME} -f RewriteRule ^(.*)$ $1 [QSA,L] RewriteCond %{REQUEST_FILENAME}/index.html -f RewriteRule ^(.*)$ $1/index.html [QSA,L] RewriteCond %{REQUEST_FILENAME}.html -f RewriteRule ^(.*)$ $1/index.html [QSA,L] RewriteRule ^/(.*)$ balancer://mongrel_cluster%{REQUEST_URI} [P,QSA,L] </programlisting> 转换成nginx配置应该是这样: <programlisting> location / { root /var/www/myapp.com/current/public; try_files /system/maintenance.html $uri $uri/index.html $uri.html @mongrel; } location @mongrel { proxy_pass http://mongrel; } </programlisting> </para> </section> </article>