c# - ImageResizer - 转换 PSD 文件时出错 - System.ArgumentException : Parameter is not valid

Question

我有一个系统，我将单个文件上传到网络服务器。上传后，我会触发一个命令来生成不同大小的文件。

上传的文件为 PSD，应转换为 png 和 jpg。

上传工作正常，我可以在目录中看到文件。但是当“生成版本”命令被触发时，我得到了这个错误

“文件可能已损坏为空，或者可能包含单个维度大于 65535 的 png 图像”

这是线

generatedFiles.Add(ImageBuilder.Current.Build(file, strDestinationPath, objResizeCommand, false, true));

完整的命令是

    public IList<string> GenerateVersions(decimal id, string file, string filename)
    {
        List<string> generatedFiles = new List<string>();

        foreach (var tCmdSets in db.IMG_SETTINGS_CMDSETS.Where("it.SETTINGS_FOLDER_ID = @folderid", new ObjectParameter("folderid", id)))
        {
            var strDestinationPath = ImageResizer.Util.PathUtils.RemoveExtension(Path.Combine(tmpDefaultFolder, tCmdSets.SETTINGS_CMDSET_DESTINATION, filename));
            ResizeSettings objResizeCommand =  new ResizeSettings(tCmdSets.SETTINGS_CMDSET_COMMAND);
            generatedFiles.Add(ImageBuilder.Current.Build(file, strDestinationPath, objResizeCommand, false, true));
        }
        return generatedFiles;
    }

并且变量填充直到错误是:

file    "c:\\www\\upload\\masters\\Products\\upload_test.psd"   string
objResizeCommand    {?maxwidth=800&maxheight=600&format=jpg}         ImageResizer.ResizeSettings
strDestinationPath  "c:\\www\\upload\\converted\\items\\big\\upload_test"   string

这是堆栈跟踪

[ArgumentException: Parameter is not valid.]
ImageResizer.ImageBuilder.LoadImage(Object source, ResizeSettings settings) in C:\Users\Administrator\Documents\resizer\Core\ImageBuilder.cs:186

[ImageCorruptedException (0x80004005): File may be corrupted, empty, or may contain a PNG image with a single dimension greater than 65,535 pixels.]
ImageResizer.ImageBuilder.LoadImage(Object source, ResizeSettings settings) in C:\Users\Administrator\Documents\resizer\Core\ImageBuilder.cs:190
ImageResizer.ImageBuilder.Build(Object source, Object dest, ResizeSettings settings, Boolean disposeSource, Boolean addFileExtension) in C:\Users\Administrator\Documents\resizer\Core\ImageBuilder.cs:306
imageController.Classes.ImageHandling.GenerateVersions2(String original) in C:\Users\tha\Documents\Visual Studio 2010\Projects\imageController\imageController\Classes\ImageHandling.cs:26
imageController.Controllers.UploadController.UploadSingleFile(Decimal id, HttpPostedFileBase objFile) in C:\Users\tha\Documents\Visual Studio 2010\Projects\imageController\imageController\Controllers\UploadController.cs:62
lambda_method(Closure , ControllerBase , Object[] ) +261
System.Web.Mvc.ActionMethodDispatcher.Execute(ControllerBase controller, Object[] parameters) +17
System.Web.Mvc.ReflectedActionDescriptor.Execute(ControllerContext controllerContext, IDictionary`2 parameters) +208
System.Web.Mvc.ControllerActionInvoker.InvokeActionMethod(ControllerContext controllerContext, ActionDescriptor actionDescriptor, IDictionary`2 parameters) +27
System.Web.Mvc.<>c__DisplayClass15.<InvokeActionMethodWithFilters>b__12() +55
System.Web.Mvc.ControllerActionInvoker.InvokeActionMethodFilter(IActionFilter filter, ActionExecutingContext preContext, Func`1 continuation) +263
System.Web.Mvc.<>c__DisplayClass17.<InvokeActionMethodWithFilters>b__14() +19
System.Web.Mvc.ControllerActionInvoker.InvokeActionMethodWithFilters(ControllerContext controllerContext, IList`1 filters, ActionDescriptor actionDescriptor, IDictionary`2 parameters) +191
System.Web.Mvc.ControllerActionInvoker.InvokeAction(ControllerContext controllerContext, String actionName) +343
System.Web.Mvc.Controller.ExecuteCore() +116
System.Web.Mvc.ControllerBase.Execute(RequestContext requestContext) +97
System.Web.Mvc.ControllerBase.System.Web.Mvc.IController.Execute(RequestContext requestContext) +10
System.Web.Mvc.<>c__DisplayClassb.<BeginProcessRequest>b__5() +37
System.Web.Mvc.Async.<>c__DisplayClass1.<MakeVoidDelegate>b__0() +21
System.Web.Mvc.Async.<>c__DisplayClass8`1.<BeginSynchronous>b__7(IAsyncResult _) +12
System.Web.Mvc.Async.WrappedAsyncResult`1.End() +62
System.Web.Mvc.<>c__DisplayClasse.<EndProcessRequest>b__d() +50
System.Web.Mvc.SecurityUtil.<GetCallInAppTrustThunk>b__0(Action f) +7
System.Web.Mvc.SecurityUtil.ProcessInApplicationTrust(Action action) +22
System.Web.Mvc.MvcHandler.EndProcessRequest(IAsyncResult asyncResult) +60
System.Web.Mvc.MvcHandler.System.Web.IHttpAsyncHandler.EndProcessRequest(IAsyncResult result) +9
System.Web.CallHandlerExecutionStep.System.Web.HttpApplication.IExecutionStep.Execute() +8897857
System.Web.HttpApplication.ExecuteStep(IExecutionStep step, Boolean& completedSynchronously) +184

Answer 1

将托管 API 与 ASP.NET(而非 HttpModule)一起使用时，您需要调用

protected void Application_Start()
{
    ImageResizer.Configuration.Config.Current.Plugins.LoadPlugins();
}

在 Global.asax.cs 除了以下 web.config 设置

<configSections>
   <section name="resizer" type="ImageResizer.ResizerSection"  requirePermission="false"  />
</configSections>

<resizer>
  <plugins>
    <add name="PsdReader" />
  </plugins>
</resizer>

否则，当您不使用 Http Modules 时，插件将不会被注册。

您可以通过调用验证插件的正确加载

ImageResizer.Configuration.Config.Current.GetDiagnosticsPage()

此页面还显示了支持的文件类型(.psd，如果插件加载正确)。

感谢 Nathanael(ImageResizer 的所有者)向我指出了这个解决方案。