Apache 重定向.htaccess 无域名通用配置：HTTP 跳转 HTTPS、HTTPS 跳转 HTTP、跳转 WWW，不跳 WWW

HTTP跳转HTTPS：

RewriteEngine On

RewriteCond %{HTTPS} !=on

RewriteRule ^/?(.*) https://%{SERVER_NAME}/$1 [R,L]

HTTPS跳转HTTP：

RewriteEngine On

RewriteCond %{HTTPS} =on

RewriteRule ^/?(.*) http://%{SERVER_NAME}/$1 [R,L]

跳转WWW：

RewriteEngine On

# 设置%{ENV:PROTO}变量，以允许重写自动使用适当的模式重定向（http或者https) 

RewriteCond %{HTTPS} =on

RewriteRule ^ - [E=PROTO:https]

RewriteCond %{HTTPS} !=on

RewriteRule ^ - [E=PROTO:http]

RewriteCond %{HTTP_HOST} !^www\. [NC]

RewriteRule ^ %{ENV:PROTO}://www.%{HTTP_HOST}%{REQUEST_URI} [R=301,L]

不跳WWW：

RewriteEngine On

# 设置%{ENV:PROTO}变量，以允许重写自动使用适当的模式重定向（http或者https) 

RewriteCond %{HTTPS} =on

RewriteRule ^ - [E=PROTO:https]

RewriteCond %{HTTPS} !=on

RewriteRule ^ - [E=PROTO:http]

RewriteCond %{HTTP_HOST} ^www\.(.+)$ [NC]

RewriteRule ^ %{ENV:PROTO}://%1%{REQUEST_URI} [R=301,L]

常用例子：

HTTP跳转HTTPS，且跳转WWW

RewriteEngine On

# HTTP跳转HTTPS

RewriteCond %{HTTPS} !=on

RewriteRule ^/?(.*) https://%{SERVER_NAME}/$1 [R,L]

# 跳转WWW

RewriteCond %{HTTP_HOST} !^www\. [NC]

RewriteRule ^ https://www.%{HTTP_HOST}%{REQUEST_URI} [R=301,L]

HTTP跳转HTTPS，不跳WWW

RewriteEngine On

# HTTP跳转HTTPS

RewriteCond %{HTTPS} !=on

RewriteRule ^/?(.*) https://%{SERVER_NAME}/$1 [R,L]

# 不跳WWW

RewriteCond %{HTTP_HOST} ^www\.(.+)$ [NC]

RewriteRule ^ https://%1%{REQUEST_URI} [R=301,L]

综合写法

RewriteEngine On

# 设置%{ENV:PROTO}变量，以允许重写自动使用适当的模式重定向（http或者https)

RewriteCond %{HTTPS} =on

RewriteRule ^ - [E=PROTO:https]

RewriteCond %{HTTPS} !=on

RewriteRule ^ - [E=PROTO:https]

# HTTP跳转HTTPS

RewriteCond %{HTTPS} !=on

RewriteRule ^/?(.*) %{ENV:PROTO}://%{SERVER_NAME}/$1 [R,L]

# 跳转WWW 且排除本机地址

RewriteCond %{HTTP_HOST} !^www\. [NC]

RewriteCond %{SERVER_ADDR} !=127.0.0.1

RewriteCond %{SERVER_ADDR} !=::1

RewriteRule ^ %{ENV:PROTO}://www.%{HTTP_HOST}%{REQUEST_URI} [R=301,L]

指定域名写法，HTTP 跳转 HTTPS，跳转WWW

RewriteEngine On

RewriteCond %{HTTPS} off [OR]

RewriteCond %{HTTP_HOST} ^baidu.com [NC]

RewriteRule ^(.*)$ https://www.baidu.com/$1 [L,R=301]

指定域名写法，HTTP 跳转 HTTPS，不跳WWW

RewriteEngine On

RewriteCond %{HTTPS} off [OR]

RewriteCond %{HTTP_HOST} ^www.dnswiz.com [NC]

RewriteRule ^(.*)$ https://dnswiz.com/$1 [L,R=301]