关于301错误跳转

//需要在webconfig配置
 <system.webServer>
    <handlers>
      <add name="301html" path="*.html" verb="*" type="System.Web.UI.PageHandlerFactory" resourceType="Unspecified" preCondition="integratedMode" />
   
    </handlers> </system.webServer>

//修改Global.asax文件

  void Application_BeginRequest(object sender, EventArgs e)
    {
        if (HttpContext.Current.Request.RawUrl.Contains("123.html"))//旧页面
        {
            Response.StatusCode = 301;
            Response.Redirect("http://www.baidu.com");//跳转地址
            Response.End();
        }
    }