以下是以discuz论坛为例

server

{

listen 80;

server_name wenrouge.com ;

if ($host != 'www.wenrouge.com' ) {

rewrite ^/(.*)$ http://www.wenrouge.com/$1 permanent;

}

index index.html index.htm index.php default.html default.htm default.php;

root /home/wwwroot;

include discuz.conf;

location ~ .*\.(php|php5)?$

{

fastcgi_pass unix:/tmp/php-cgi.sock;

fastcgi_index index.php;

include fcgi.conf;

}

location ~ .*\.(gif|jpg|jpeg|png|bmp|swf)$

{

expires 30d;

}

location ~ .*\.(js|css)?$

{

expires 12h;

}

access_log off;

}

注意：关键的地方是

server_name wenrouge.com ;

if ($host != 'www.wenrouge.com' ) {

rewrite ^/(.*)$ https://www.wenrouge.com/$1 permanent;

}

该代码的意思 输入的域名如果不是wenrouge.com就直接跳转到www.wenrouge.com
也可以这样写

server_name wenrouge.com ;

if ($host = 'wenrouge.com' ) {

rewrite ^/(.*)$ https://www.wenrouge.com/$1 permanent;

}

该代码的意思 输入的域名如果为 wenrouge.com就直接跳转到www.wenrouge.com