RewriteEngine On
RewriteCond %{HTTPS} off
RewriteRule ^ https://%{HTTP_HOST}%{REQUEST_URI}

http://www.sslshopper.com/apache-redirect-http-to-https.html

or

http://www.cyberciti.biz/tips/howto-apache-force-https-secure-connections.html

实际上，你的主题属于https://serverfault.com/，但你仍然可以尝试检查这些.htaccess指令:

RewriteEngine on
RewriteCond %{HTTPS} off
RewriteRule ^(.*) https://%{HTTP_HOST}/$1

我实际上遵循了这个例子，它对我很有效:)

NameVirtualHost *:80
<VirtualHost *:80>
   ServerName mysite.example.com
   Redirect permanent / https://mysite.example.com/
</VirtualHost>

<VirtualHost _default_:443>
   ServerName mysite.example.com
  DocumentRoot /usr/local/apache2/htdocs
  SSLEngine On
 # etc...
</VirtualHost>

然后做:

/etc/init.d/httpd restart

搜索apache重定向http到https并登陆这里。这是我在ubuntu上所做的:

1)启用模块

sudo a2enmod rewrite
sudo a2enmod ssl

2)编辑你的网站配置

编辑文件

/etc/apache2/sites-available/000-default.conf

内容应该是:

<VirtualHost *:80>
    RewriteEngine On
    RewriteCond %{HTTPS} off
    RewriteRule (.*) https://%{HTTP_HOST}%{REQUEST_URI}
</VirtualHost>

<VirtualHost *:443>
    SSLEngine on
    SSLCertificateFile    <path to your crt file>
    SSLCertificateKeyFile   <path to your private key file>

    # Rest of your site config
    # ...
</VirtualHost>

注意，SSL模块需要证书。您需要指定一个现有的证书(如果您已经购买了)，或者自己生成一个自签名证书。

3)重新启动apache2

sudo service apache2 restart

这招对我很管用:

RewriteCond %{HTTPS} =off
RewriteRule ^ https://%{HTTP_HOST}%{REQUEST_URI} [QSA,L,R=301]

这个代码为我工作。

# ----------port 80----------
RewriteEngine on
# redirect http non-www to https www
RewriteCond %{HTTPS} off
RewriteCond %{SERVER_NAME} =example.com
RewriteRule ^ https://www.%{SERVER_NAME}%{REQUEST_URI} [END,QSA,R=permanent]

# redirect http www to https www
RewriteCond %{HTTPS} off
RewriteCond %{SERVER_NAME} =www.example.com
RewriteRule ^ https://%{SERVER_NAME}%{REQUEST_URI} [END,QSA,R=permanent]

# ----------port 443----------
RewriteEngine on
# redirect https non-www to https www
RewriteCond %{SERVER_NAME} !^www\.(.*)$ [NC]
RewriteRule ^ https://www.%{SERVER_NAME}%{REQUEST_URI} [END,QSA,R=permanent]

使用mod_rewrite不是推荐的方式，而是使用虚拟主机和重定向。

如果你倾向于使用mod_rewrite:

RewriteEngine On
# This will enable the Rewrite capabilities

RewriteCond %{HTTPS} !=on
# This checks to make sure the connection is not already HTTPS

RewriteRule ^/?(.*) https://%{SERVER_NAME}/$1 [R,L]
# This rule will redirect users from their original location, to the same 
location but using HTTPS.
# i.e.  http://www.example.com/foo/ to https://www.example.com/foo/
# The leading slash is made optional so that this will work either in
# httpd.conf or .htaccess context

参考:Httpd Wiki -重写httptohttps

如果你正在寻找一个301永久重定向，那么重定向标志应该是，

 R=301

所以RewriteRule会像这样，

RewriteRule ^/?(.*) https://%{SERVER_NAME}/$1 [R=301,L]

如果你有Apache2.4，检查000-default.conf -删除DocumentRoot并添加

Redirect permanent / https://[your-domain]/

服务器版本:Apache/2.4.29 (Ubuntu)

在网上和apache的官方文档中搜索了很长时间后，唯一适合我的解决方案来自/usr/share/doc/apache2/README.Debian.gz

To enable SSL, type (as user root):

    a2ensite default-ssl
    a2enmod ssl

在/etc/apache2/sites-available/000-default.conf文件中添加

重定向"/" "https://sub.domain.com/"

<VirtualHost *:80>

    #ServerName www.example.com
    DocumentRoot /var/www/owncloud
    Redirect "/" "https://sub.domain.com/"

就是这样。

注:如果你想阅读手册而不提取:

gunzip -cd /usr/share/doc/apache2/README.Debian.gz

请在apache Virtualhosting配置中试试这个 然后重新加载apache服务

RewriteEngine On

RewriteCond %{HTTPS} off


RewriteRule ^ https://%{HTTP_HOST}%{REQUEST_URI}

我需要这个来做一些简单的事情，比如将所有http流量从我服务器上的默认apache主页重定向到一个通过https服务的页面。

由于我在配置apache时仍然很绿色，我更倾向于避免直接使用mod_rewrite，而是使用像这样更简单的东西:

<VirtualHost *:80>
  <Location "/">
     Redirect permanent "https://%{HTTP_HOST}%{REQUEST_URI}"
  </Location>
</VirtualHost>

<VirtualHost *:443>
  DocumentRoot "/var/www/html"
  SSLEngine on
  ...
</VirtualHost>

我喜欢这个，因为它允许我使用apache变量，这样我就不必指定实际的主机名，因为它只是一个没有关联域名的IP地址。

引用: https://stackoverflow.com/a/40291044/2089675

对我来说这很有效

RewriteEngine on
RewriteCond %{HTTP:X-Forwarded-Proto} !https
RewriteRule ^(.*)$ https://%{HTTP_HOST}/$1 [R=301,L]