如何通过web.config配置指定URL重定向并排除其余不需要跳转的URL？

前提：服务器已安装IIS URL Rewrite 模块

方案1：硬编码全量跳转规则 #

该方案会把所有要求的跳转关系直接写进配置，匹配到对应路径就执行跳转，其余路径不做处理：

<configuration>
  <system.webServer>
    <rewrite>
      <rules>
        <rule name="Redirect root to new domain" stopProcessing="true">
          <match url="^$" />
          <conditions>
            <add input="{HTTP_HOST}" pattern="^old-domain\.com$" />
          </conditions>
          <action type="Redirect" url="https://new-domain.com/" redirectType="Permanent" />
        </rule>
        <rule name="Redirect promotion campaign to new root" stopProcessing="true">
          <match url="^promotion/campaign/?$" />
          <conditions>
            <add input="{HTTP_HOST}" pattern="^old-domain\.com$" />
          </conditions>
          <action type="Redirect" url="https://new-domain.com/" redirectType="Permanent" />
        </rule>
        <rule name="Redirect claim-status to new root" stopProcessing="true">
          <match url="^claim-status/?$" />
          <conditions>
            <add input="{HTTP_HOST}" pattern="^old-domain\.com$" />
          </conditions>
          <action type="Redirect" url="https://new-domain.com/" redirectType="Permanent" />
        </rule>
        <rule name="Redirect about us related pages" stopProcessing="true">
          <match url="^about-us(/awards-and-recognitions)?/?$" />
          <conditions>
            <add input="{HTTP_HOST}" pattern="^old-domain\.com$" />
          </conditions>
          <action type="Redirect" url="https://new-domain.com/about-us/company" redirectType="Permanent" />
        </rule>
        <rule name="Redirect careers related pages" stopProcessing="true">
          <match url="^careers(/apply-for-a-job)?/?$" />
          <conditions>
            <add input="{HTTP_HOST}" pattern="^old-domain\.com$" />
          </conditions>
          <action type="Redirect" url="https://new-domain.com/careers/" redirectType="Permanent" />
        </rule>
        <rule name="Redirect contact us" stopProcessing="true">
          <match url="^contact-us/?$" />
          <conditions>
            <add input="{HTTP_HOST}" pattern="^old-domain\.com$" />
          </conditions>
          <action type="Redirect" url="https://new-domain.com/contact-us" redirectType="Permanent" />
        </rule>
      </rules>
    </rewrite>
  </system.webServer>
</configuration>

注意：把配置里的old-domain.com和new-domain.com替换为实际的新旧域名即可，测试阶段可以把redirectType="Permanent"改为redirectType="Temporary"使用302临时跳转，避免浏览器缓存影响测试效果。

方案2：仅处理根路径跳转，其余路径跳过 #

如果只需要处理根路径的跳转，其余路径的跳转交给CMS内部处理，用下面的单条规则即可：

<configuration>
  <system.webServer>
    <rewrite>
      <rules>
        <rule name="Only redirect old domain root" stopProcessing="true">
          <match url="^$" />
          <conditions>
            <add input="{HTTP_HOST}" pattern="^old-domain\.com$" />
          </conditions>
          <action type="Redirect" url="https://new-domain.com/" redirectType="Permanent" />
        </rule>
      </rules>
    </rewrite>
  </system.webServer>
</configuration>

说明：该规则只会匹配旧域名的根路径请求进行跳转，所有带路径的请求都不会触发该规则，直接交给后续的CMS逻辑处理。

内容的提问来源于stack exchange，提问作者Ignatius Rodrigues