假设您 申请证书的域名是  www.youdomain.com,  现在您想把  youdomain.com 和  www.yourdomain.com 都直接跳转到  https://www.yourdomain.com  进行访问, 则可以进行如下操作:  (注意   youdomain.com  需要替换为您自己的域名)

   在网站的FTP根目录下, 有www文件夹,  进入  www文件夹

寻找  web.config文件 ( 如果不存在,就手工创建一个 )

如果您的web.config, 是您新建的, 这时, 里面应该是空白的, 请复制一下内容,然后保存

<?xml version="1.0" encoding="UTF-8"?>

<configuration>

    <system.webServer>

        <rewrite>

            <rules>

                <rule name="http2https_202007081033" stopProcessing="true">

                    <match url="(.*)" />

                    <conditions>

                        <add input="{HTTPS}" pattern="^OFF$" />

                        <add input="{HTTP_HOST}" pattern="^yourdomain.com$" />

                    </conditions>

                    <action type="Redirect" url="https://www.yourdomain.com/{R:0}" />

                </rule>

                <rule name="http2https_2020071908152020" stopProcessing="true">

                    <match url="(.*)" />

                    <conditions>

                        <add input="{HTTPS}" pattern="^OFF$" />

                        <add input="{HTTP_HOST}" pattern="^www.yourdomain.com$" />

                    </conditions>

                    <action type="Redirect" url="https://www.yourdomain.com/{R:0}" />

                </rule>

            </rules>

        </rewrite>

    </system.webServer>

</configuration>

这样, 您访问  youdomain.com 和  www.youdomain.com 都会跳转到  https://www.yourdomain.com 

注意, 

1. 标黄的 两个  name 的值, 不能重复, 所以这里采用了时间戳的形式命名,您可以随意改成您比较容易识别的不重复的英文标识即可..

2. 红色字体的

3. 如果您申请的域名 非 youdomain.com 和 www.youdomain.com , 这种主域形式的证书, 而是  test.youdomain.com 这类型的域名证书, 则只需要增加 一个  rule 就可以了, 如下:

<?xml version="1.0" encoding="UTF-8"?>

<configuration>

    <system.webServer>

        <rewrite>

            <rules>

                <rule name="http2https_202007091133" stopProcessing="true">

                    <match url="(.*)" />

                    <conditions>

                        <add input="{HTTPS}" pattern="^OFF$" />

                        <add input="{HTTP_HOST}" pattern="^test.yourdomain.com$" />

                    </conditions>

                    <action type="Redirect" url="https://test.yourdomain.com/{R:0}" />

                </rule>

            </rules>

        </rewrite>

    </system.webServer>

</configuration>

如果您已经存在  web.config文件, 请把  rewrite  --- rules --- rule 对应的内容, 拷贝到您web.config  下  system.webServer  段内即可.