IIS将http:80 自动转到https:443

1 安装 UrlRewrite 模块：下载地址：https://www.iis.net/downloads/microsoft/url-rewrite

2 在web.config中相应的节点加入以下配置：

  <system.webServer>
  <rewrite>
    <rules>
      <rule name="HTTP to HTTPS redirect" stopProcessing="true">
        <match url="(.*)" />
        <conditions>
          <add input="{HTTPS}" pattern="off" ignoreCase="true" />
        </conditions>
        <action type="Redirect" redirectType="Found" url="https://{HTTP_HOST}/{R:1}" />
      </rule>
    </rules>
  </rewrite>
   </system.webServer>