Question

如何通过IIS7中的URL重写强制example.com重定向到www.example.com？什么样的规则应该进入web.config？感谢。

Answer 1

这是Microsoft的URL Rewrite Module 2.0示例，它将* .fabrikam.com重定向到www.fabrikam.com

<?xml version="1.0" encoding="UTF-8"?>
<configuration>
    <system.webServer>
        <rewrite>
            <rules>
                <rule name="Add www" patternSyntax="Wildcard" stopProcessing="true">
                    <match url="*" />
                    <conditions>
                        <add input="{HTTP_HOST}" pattern="www.fabrikam.com" negate="true" />
                    </conditions>
                    <action type="Redirect" url="http://www.fabrikam.com/{R:1}" />
                </rule>
            </rules>
        </rewrite>
    </system.webServer>
</configuration>

Answer 2

为了使其更通用，您可以使用以下适用于任何域的URL重写规则：

<?xml version="1.0" encoding="UTF-8"?>
<configuration>
<system.webServer>
    <rewrite>
        <rules>
              <rule name="Add WWW" stopProcessing="true">
              <match url="^(.*)$" />
              <conditions>
                 <add input="{HTTP_HOST}" pattern="^(?!www\.)(.*)$" />
              </conditions>
              <action type="Redirect" url="http://www.{C:0}{PATH_INFO}" redirectType="Permanent" />
           </rule>
        </rules>
    </rewrite>
</system.webServer>

Answer 3

不确定最好的方法，但我有一个网站，其中包含运行此web.config的所有旧域/子域：

<?xml version="1.0" encoding="UTF-8"?>
<configuration>
    <system.webServer>
        <rewrite>
            <rules>
                <rule name="Transfer" stopProcessing="true">
                    <match url=".*" />
                    <action type="Redirect" url="http://www.targetsite.com/{R:0}" redirectType="Permanent" />
                </rule>
            </rules>
        </rewrite>
    </system.webServer>
</configuration>

似乎已完成工作。

Answer 4

我不确定这是否有帮助，但我选择在应用级别执行此操作。这是我写的一个快速动作过滤器。只需在项目中的某处添加类，然后就可以将[RequiresWwww]添加到单个动作或整个控制器中。

public class RequiresWww : ActionFilterAttribute
    {
        public override void OnActionExecuting(ActionExecutingContext filterContext)
        {
            HttpRequestBase req = filterContext.HttpContext.Request;
            HttpResponseBase res = filterContext.HttpContext.Response;

            //IsLocal and IsLoopback i'm not too sure on the differences here, but I have both to eliminate local dev conditions. 
            if (!req.IsLocal && !req.Url.Host.StartsWith("www") && !req.Url.IsLoopback)
            {
                var builder = new UriBuilder(req.Url)
                {
                    Host = "www." + req.Url.Host
                };

                res.Redirect(builder.Uri.ToString());

            }

            base.OnActionExecuting(filterContext);
        }
    }

然后

[RequiresWwww]
public ActionResult AGreatAction()
{
...
}

或

[RequiresWwww]
public class HomeController : BaseAppController 
{
..
..
}

希望有人帮助。干杯！

IIS7 URL重写 - 添加“www”前缀

4 个答案: