我们旧的ASP.net网站将静态图像存储在名为 / images 的根目录下的子目录中。
我们的新ASP.net MVC网站将这些图片存储在 / Content / Images
的新布局中我已经更改了网站中的所有页面以应对新的文件夹结构,但我想将旧的静态图像设置为永久重定向到新位置。
我们的网站是托管的,我无法控制IIS,那么解决此问题的最佳方法是什么?
答案 0 :(得分:6)
我在MVC 2网站上使用以下代码:
// The legacy route class that exposes a RedirectActionName
public class LegacyRoute : Route
{
public LegacyRoute(string url, string redirectActionName, IRouteHandler routeHandler)
: base(url, routeHandler)
{
RedirectActionName = redirectActionName;
Defaults = new RouteValueDictionary(new { controller = "Home", action = "Index"}); // is not actually called
}
public string RedirectActionName { get; set; }
}
// The legacy route handler, used for getting the HttpHandler for the request
public class LegacyRouteHandler : MvcRouteHandler
{
protected override IHttpHandler GetHttpHandler(RequestContext requestContext)
{
requestContext.HttpContext.Response.Write("success");
return new LegacyHandler(requestContext);
}
}
// The legacy HttpHandler that handles the request
public class LegacyHandler : MvcHandler
{
public LegacyHandler(RequestContext requestContext) : base(requestContext)
{
requestContext.HttpContext.Response.Write("success");
ProcessRequest(requestContext.HttpContext);
}
protected override void ProcessRequest(HttpContextBase httpContext)
{
string redirectActionName = ((LegacyRoute) RequestContext.RouteData.Route).RedirectActionName;
var route = new Route(redirectActionName, ((LegacyRoute)RequestContext.RouteData.Route).Defaults, new MvcRouteHandler());
// Copy all of the querystring parameters and put them within RouteContext.RouteData.Values
var values = new Dictionary<string, object>();
foreach (var s in RequestContext.RouteData.Values)
{
values.Add(s.Key, s.Value);
}
foreach (var s in httpContext.Request.QueryString.AllKeys)
{
values.Add(s, httpContext.Request.QueryString[s]);
}
var data = route.GetVirtualPath(RequestContext, new RouteValueDictionary(values));
httpContext.Response.Status = "301 Moved Permanently";
httpContext.Response.AppendHeader("Location", "/" + data.VirtualPath + "/");
httpContext.Response.End();
}
}
然后我只是将遗留路线添加到我的路线图中:
routes.Insert(13, new LegacyRoute("search", "search/{query}", new LegacyRouteHandler()));