获取图像的URL将引发异常

Question

我有以下异常：System.Web.HttpException（0X80004005）

这是导致它的代码。

using (var img = System.Drawing.Image.FromFile(_pictureService.GetThumbLocalPath(picture))) 
{ 
    using (var memStream = new MemoryStream()) 
    { 
     img.Save(memStream, img.RawFormat); 
     byte[] imageBytes = memStream.ToArray(); 

     // Convert byte[] to Base64 String 
     base64String = Convert.ToBase64String(imageBytes); 
     ImageBase64 = base64String; 
    } 
} 

只是无法弄清楚如何解决它。

任何人都知道了。

有关无效的虚拟路径。在异常： “是不是一个有效虚路径在System.Web.Util.UrlPath.CheckValidVirtualPath（字符串路径）。”

完整例外：

System.Web.HttpException (0x80004005): Error executing child request for handler 'System.Web.Mvc.HttpHandlerUtil+ServerExecuteHttpHandlerAsyncWrapper'. ---> System.Web.HttpException (0x80004005): Error executing child request for handler 'System.Web.Mvc.HttpHandlerUtil+ServerExecuteHttpHandlerAsyncWrapper'. ---> System.Web.HttpException (0x80004005): 'https:/mydomain.com.au/content/images/thumbs/myimage.jpeg' is not a valid virtual path. at System.Web.Util.UrlPath.CheckValidVirtualPath(String path) at System.Web.Util.UrlPath.Combine(String appPath, String basepath, String relative) at System.Web.VirtualPath.Combine(VirtualPath relativePath) at System.Web.HttpRequest.MapPath(VirtualPath virtualPath, VirtualPath baseVirtualDir, Boolean allowCrossAppMapping) at System.Web.HttpServerUtility.MapPath(String path) at Nop.Plugin.Widgets.DbgEnhancements.Controllers.CatalogController.<>c__DisplayClass56_0.<DbgHomeBrands>b__2() at Nop.Core.Caching.CacheExtensions.Get[T](ICacheManager cacheManager, String key, Int32 cacheTime, Func 1获取）在Nop.Core.Caching.CacheExtensions.Get [T]（的ICacheManager的CacheManager， String key，Func 1 acquire) at Nop.Plugin.Widgets.DbgEnhancements.Controllers.CatalogController.<DbgHomeBrands>b__56_1(Manufacturer x) at System.Linq.Enumerable.WhereSelectListIterator 2.MoveNext（）at System.Collections.Generic.List 1..ctor(IEnumerable 1 collection）at System.Linq.Enumerable.ToList [TSource]（IEnumerable 1 source) at Nop.Plugin.Widgets.DbgEnhancements.Controllers.CatalogController.<DbgHomeBrands>b__56_0() at Nop.Core.Caching.CacheExtensions.Get[T](ICacheManager cacheManager, String key, Int32 cacheTime, Func 1 acquire）at Nop.Core.Caching.CacheExtensions.Get [ T]（ICacheManager cacheManager，String key，Func 1 acquire) at Nop.Plugin.Widgets.DbgEnhancements.Controllers.CatalogController.DbgHomeBrands() at lambda_method(Closure , ControllerBase , Object[]) at System.Web.Mvc.ReflectedActionDescriptor.Execute(ControllerContext controllerContext, IDictionary 2 parameters）at System.Web.Mvc.ControllerActionInvoker.InvokeActionMethod（ControllerContext controllerContext，ActionDescriptor actionDescriptor，IDictionary 2 parameters) at System.Web.Mvc.Async.AsyncControllerActionInvoker.<BeginInvokeSynchronousActionMethod>b__39(IAsyncResult asyncResult, ActionInvocation innerInvokeState) at System.Web.Mvc.Async.AsyncResultWrapper.WrappedAsyncResult System.Web.Mvc.Async.AsyncControllerActionInvoker上System.Web.Mvc.Async.AsyncControllerActionInvoker.AsyncInvocationWithFilters.b__3d（）System.Web.Mvc.Async.AsyncControllerActionInvoker.EndInvokeActionMethod（IAsyncResult asyncResult）上2.CallEndDelegate（IAsyncResult asyncResult） .AsyncInvocationWithFilters。 <> c__DisplayClass46.b__3f（）在System.Web.Mvc.Async.AsyncControllerActionInvoker.AsyncInvocationWithFilters。 <> c__DisplayClass46.b__3f（）在System.Web.Mvc.Async.AsyncControllerActionInvoker.AsyncInvocationWithFilters。 <> c__DisplayClass46.b__3f（）在System.Web.Mvc.Async.AsyncControllerActionInvoker.AsyncInvocationWithFilters。 <> c__DisplayClass46.b__3f（）在System.Web.Mvc.Async.AsyncControllerActionInvoker.AsyncInvocationWithFilters。 <> c__DisplayClass46.b__3f（）在System.Web.Mvc.Async.AsyncControllerActionInvoker.AsyncInvocationWithFilters。 <> c__DisplayClass46.b__3f（）在System.Web.Mvc.Async.AsyncControllerActionInvoker.AsyncInvocationWithFilters。 <> c__DisplayClass46.b__3f（）在System.Web.Mvc.Async.AsyncControllerActionInvoker.AsyncInvocationWithFilters。在System.Web.Mvc.Async.AsyncControllerActionInvoker.EndInvokeActionMethodWithFilters（IAsyncResult asyncResult）上System_Web.Mvc.Async.AsyncControllerActionInvoker上的c__DisplayClass46.b__3f（）。 <> c__DisplayClass21。 <> c__DisplayClass2b.b__1c（）在System.Web.Mvc.Async.AsyncControllerActionInvoker。 <> System.Web.Mvc.Async上的System.Web.Mvc.Controller.b__1d（IAsyncResult asyncResult，ExecuteCoreState innerState）上的System.Web.Mvc.Async.AsyncControllerActionInvoker.EndInvokeAction（IAsyncResult asyncResult）处的c__DisplayClass21.b__1e（IAsyncResult asyncResult） .AsyncResultWrapper.WrappedAsyncVoid 1.CallEndDelegate(IAsyncResult asyncResult) at System.Web.Mvc.Controller.EndExecuteCore(IAsyncResult asyncResult) at System.Web.Mvc.Async.AsyncResultWrapper.WrappedAsyncVoid 1. System.Web.Mvc上的System.Web.Mvc.Controller.EndExecute（IAsyncResult asyncResult）上的System.Web.Mvc.MvcHandler.b__5（IAsyncResult asyncResult，ProcessRequestState innerState）上的CallEndDelegate（IAsyncResult asyncResult）在System.Web上System.Web.HttpServerUtility.ExecuteInternal（IHttpHandler处理程序，TextWriter作家，布尔preserveForm，布尔setPreviousPage，VirtualPath路径，VirtualPath文件路径，字符串physPath，异常错误，字符串queryStringOverride）Async.AsyncResultWrapper.WrappedAsyncVoid 1.CallEndDelegate(IAsyncResult asyncResult) at System.Web.Mvc.MvcHandler.EndProcessRequest(IAsyncResult asyncResult) at System.Web.Mvc.HttpHandlerUtil.ServerExecuteHttpHandlerWrapper.<>c__DisplayClass4.<Wrap>b__3() at System.Web.Mvc.HttpHandlerUtil.ServerExecuteHttpHandlerWrapper.Wrap[TResult](Func 1 func）。 HttpServerUtility.ExecuteInternal（IHttpHandler处理程序，TextWriter作家，布尔preserveForm，博在System.Web.HttpServerUtility.Execute（IHttpHandler处理程序（IHttpHandler处理程序，TextWriter作家，布尔preserveForm，布尔setPreviousPage） ，TextWriter作家，布尔preserveForm）在System.Web.Mvc.Html.ChildActionExtensions。在ASP.Page_Views_Widget_WidgetsByZone_cshtml.Execute（）处的System.Web.Mvc.Html.ChildActionExtensions.Action（HtmlHelper htmlHelper，String actionName，String controllerName，RouteValueDictionary routeValues）ActionHelper（HtmlHelper htmlHelper，String actionName，String controllerName，RouteValueDictionary routeValues，TextWriter textWriter）在c：\ inetpub \ vhosts \ snowys-livecube-test \ Views \ Widget \ WidgetsByZone.cshtml中：第5行System.Web.WebPages.WebPageBase.ExecutePageHierarchy（）System.Web.Mvc.WebViewPage.ExecutePageHierarchy（）at System .Web.WebPages.WebPageBase.ExecutePageHierarchy（WebPageContext pageContext，TextWriter writer，WebPageRenderingBase startPage）at System.Web.Mvc.ViewResultBase.ExecuteResult（ControllerContext context）at System.Web.Mvc.ControllerActionInvoker.InvokeActionResultFilterRecursive（IList 1 filters, Int32 filterIndex, ResultExecutingContext preContext, ControllerContext controllerContext, ActionResult actionResult) at System.Web.Mvc.ControllerActionInvoker.InvokeActionResultFilterRecursive(IList 1 filters，Int32 filterIndex ，ResultExecutingContext preContext，ControllerContext controllerContext，ActionResult actionResult）在System.Web.Mvc .ControllerActionInvoker.InvokeActionResultFilterRecursive（IList的1 filters, Int32 filterIndex, ResultExecutingContext preContext, ControllerContext controllerContext, ActionResult actionResult) at System.Web.Mvc.ControllerActionInvoker.InvokeActionResultFilterRecursive(IList 1个过滤器，的Int32 filterIndex，ResultExecutingContext preContext，ControllerContext controllerContext，的ActionResult的ActionResult）在System.Web.Mvc.ControllerActionInvoker.InvokeActionResultFilterRecursive（IList的1 filters, Int32 filterIndex, ResultExecutingContext preContext, ControllerContext controllerContext, ActionResult actionResult) at System.Web.Mvc.ControllerActionInvoker.InvokeActionResultFilterRecursive(IList 1个过滤器，的Int32 filterIndex，ResultExecutingContext preContext，ControllerContext controllerContext，的ActionResult的ActionResult）在System.Web.Mvc.ControllerActionInvoker.InvokeActionResultFilterRecursive（IList 1 filters, Int32 filterIndex, ResultExecutingContext preContext, ControllerContext controllerContext, ActionResult actionResult) at System.Web.Mvc.ControllerActionInvoker.InvokeActionResultWithFilters(ControllerContext controllerContext, IList 1 filters，ActionResult actionResult）System.Web.Mvc.ControllerActionInvoker.InvokeActionResultFilterRecursive（IList 1 filters, Int32 filterIndex, ResultExecutingContext preContext, ControllerContext controllerContext, ActionResult actionResult) at System.Web.Mvc.ControllerActionInvoker.InvokeActionResultFilterRecursive(IList 1 filters，Int32 filterIndex，ResultExecutingContext preContext，ControllerContext controllerContext，ActionResult actionResult）。 Web.Mvc.Async.AsyncControllerActionInvoker。 <> System.Web.Mvc.Async上的System.Web.Mvc.Controller.b__1d（IAsyncResult asyncResult，ExecuteCoreState innerState）上的System.Web.Mvc.Async.AsyncControllerActionInvoker.EndInvokeAction（IAsyncResult asyncResult）处的c__DisplayClass21.b__1e（IAsyncResult asyncResult） .AsyncResultWrapper.WrappedAsyncVoid 1.CallEndDelegate(IAsyncResult asyncResult) at System.Web.Mvc.Controller.EndExecuteCore(IAsyncResult asyncResult) at System.Web.Mvc.Async.AsyncResultWrapper.WrappedAsyncVoid 1. System.Web.Mvc上的System.Web.Mvc.Controller.EndExecute（IAsyncResult asyncResult）上的System.Web.Mvc.MvcHandler.b__5（IAsyncResult asyncResult，ProcessRequestState innerState）上的CallEndDelegate（IAsyncResult asyncResult）在System.Web上System.Web.HttpServerUtility.ExecuteInternal（IHttpHandler处理程序，TextWriter作家，布尔preserveForm，布尔setPreviousPage，VirtualPath路径，VirtualPath文件路径，字符串physPath，异常错误，字符串queryStringOverride）Async.AsyncResultWrapper.WrappedAsyncVoid 1.CallEndDelegate(IAsyncResult asyncResult) at System.Web.Mvc.MvcHandler.EndProcessRequest(IAsyncResult asyncResult) at System.Web.Mvc.HttpHandlerUtil.ServerExecuteHttpHandlerWrapper.<>c__DisplayClass4.<Wrap>b__3() at System.Web.Mvc.HttpHandlerUtil.ServerExecuteHttpHandlerWrapper.Wrap[TResult](Func 1 func）。 HttpServerUtility.ExecuteInternal（IHttpHandler处理程序，TextWriter作家，布尔preserveForm，博在System.Web.HttpServerUtility.Execute（IHttpHandler处理程序（IHttpHandler处理程序，TextWriter作家，布尔preserveForm，布尔setPreviousPage） ，TextWriter作家，布尔preserveForm）在System.Web.Mvc.Html.ChildActionExtensions.ActionHelper（HtmlHelper htmlHelper，字符串actionName，字符串controllerName，RouteValueDictionary routeValues，TextWriter textWriter）在System.Web.Mvc.Html.ChildActionExtensions.Action（HtmlHelper htmlHelper ，字符串actionName，字符串controllerName，RouteValueDictionary routeValues）在ASP.Page_Themes_Snowys_Views_Home_Index_cshtml.Execute（）在C：\ inetpub \ vhosts \ snowys Nop.Web.Framework.HtmlExtensions.Widget（HtmlHelper助手，字符串widgetZone，对象additionalData，字符串区域） -livecube-test \ Themes \ Snowys \ Views \ Home \ Index.cshtml：第36行，位于System.Web.WebPages.WebPageBase.ExecutePageH在System.Web.Mvc.WebViewPage.ExecutePageHierarchy（）System.Web.WebPages.WebPageBase.ExecutePageHierarchy（WebPageContext pageContext，TextWriter writer，WebPageRenderingBase startPage）上的System.Web.Mvc.ViewResultBase.ExecuteResult（ControllerContext上下文）处的ierarchy（） System.Web.Mvc.ControllerActionInvoker.InvokeActionResultFilterRecursive（IList 1 filters, Int32 filterIndex, ResultExecutingContext preContext, ControllerContext controllerContext, ActionResult actionResult) at System.Web.Mvc.ControllerActionInvoker.InvokeActionResultFilterRecursive(IList 1 filters，Int32 filterIndex，ResultExecutingContext preContext，ControllerContext controllerContext，ActionResult actionResult）at System.Web.Mvc.ControllerActionInvoker.InvokeActionResultFilterRecursive（IList 1 filters, Int32 filterIndex, ResultExecutingContext preContext, ControllerContext controllerContext, ActionResult actionResult) at System.Web.Mvc.ControllerActionInvoker.InvokeActionResultFilterRecursive(IList 1 filters，Int32 filterIndex，ResultExecutingContext preContext，ControllerContext System.Web.Mvc.ControllerActionInvoker.InvokeActionResultFilterRecursive（IList 1 filters, Int32 filterIndex, ResultExecutingContext preContext, ControllerContext controllerContext, ActionResult actionResult) at System.Web.Mvc.ControllerActionInvoker.InvokeActionResultFilterRecursive(IList 1 filters，Int32 filterIndex，ResultExecutingContext preContext，ControllerContext controllerContext，ActionResult actionResult）上的控制器上下文，控制器上下文，ActionResult actionResult） c.ControllerActionInvoker。InvokeActionResultFilterRecursive（IList 1 filters, Int32 filterIndex, ResultExecutingContext preContext, ControllerContext controllerContext, ActionResult actionResult) at System.Web.Mvc.ControllerActionInvoker.InvokeActionResultFilterRecursive(IList 1 filters，Int32 filterIndex，ResultExecutingContext preContext，ControllerContext controllerContext，ActionResult actionResult）at System.Web.Mvc.ControllerActionInvoker.InvokeActionResultFilterRecursive（IList 1 filters, Int32 filterIndex, ResultExecutingContext preContext, ControllerContext controllerContext, ActionResult actionResult) at System.Web.Mvc.ControllerActionInvoker.InvokeActionResultWithFilters(ControllerContext controllerContext, IList 1 filters，ActionResult actionResult）at System.Web.Mvc.Async.AsyncControllerActionInvoker。 <> System.Web.Mvc.Async上的System.Web.Mvc.Controller.b__1d（IAsyncResult asyncResult，ExecuteCoreState innerState）上的System.Web.Mvc.Async.AsyncControllerActionInvoker.EndInvokeAction（IAsyncResult asyncResult）处的c__DisplayClass21.b__1e（IAsyncResult asyncResult） .AsyncResultWrapper.WrappedAsyncVoid 1.CallEndDelegate(IAsyncResult asyncResult) at System.Web.Mvc.Controller.EndExecuteCore(IAsyncResult asyncResult) at System.Web.Mvc.Async.AsyncResultWrapper.WrappedAsyncVoid 1. System.Web.Mvc上的System.Web.Mvc.Controller.EndExecute（IAsyncResult asyncResult）上的System.Web.Mvc.MvcHandler.b__5（IAsyncResult asyncResult，ProcessRequestState innerState）上的CallEndDelegate（IAsyncResult asyncResult） Async.AsyncResultWrapper.WrappedAsyncVoid 1.CallEndDelegate(IAsyncResult asyncResult) at System.Web.Mvc.MvcHandler.EndProcessRequest(IAsyncResult asyncResult) at System.Web.HttpApplication.CallHandlerExecutionStep.System.Web.HttpApplication.IExecutionStep.Execute() at System.Web.HttpApplication.ExecuteStep(IExecutionStep step, Boolean& completedSynchronously)

欢呼

Answer 1

好了，所以它的工作现在。

使用nopcommerce图片模型，我可以生成像这样的base64图像。

base64String = Convert.ToBase64String(picture.PictureBinary); 

感谢您的帮助，希望这可以帮助别人。