System.Drawing.Image.FromFile "System.OutOfMemoryException: Out of memory."

Question

我偶尔会遇到这些错误，但我不确定为什么。这段代码每天执行数千次，我每隔一段时间就会遇到这些错误。其中一张图像是 94.9 KB，1024x1024 图像。正在通过 UNC 路径从 Azure File Storage 磁盘读取图像。

System.OutOfMemoryException: Out of memory.

Generated: Sat, 23 Apr 2016 15:09:54 GMT

System.OutOfMemoryException: Out of memory.
   at System.Drawing.Image.FromFile(String filename, Boolean useEmbeddedColorManagement)
   at System.Drawing.Image.FromFile(String filename)
   at Tournaments.ImageHandler.ProcessRequest(HttpContext context) in C:\Development\Exposure\Main\Websites\Tournaments\ImageHandler.ashx.cs:line 64
   at System.Web.HttpApplication.CallHandlerExecutionStep.System.Web.HttpApplication.IExecutionStep.Execute()
   at System.Web.HttpApplication.ExecuteStep(IExecutionStep step, Boolean& completedSynchronously)

实际代码

 using (var image = Image.FromFile(path))
 {
 }

Answer 1

这似乎解决了我的问题，因为它没有以这种方式引用它。

using (var memoryStream = new MemoryStream(File.ReadAllBytes(path)))
            {
                using (var image = Image.FromStream(memoryStream))
                {
                  
                    byte[] bytes;

                
                      
                        using (var memoryStream1 = new MemoryStream())
                        {
                            image.Save(memoryStream1, GetImageFormat(Path.GetExtension(path)));
                            bytes = memoryStream1.ToArray();
                        }
                    

                }
            }
    }
    
      private ImageFormat GetImageFormat(string extension)
            {
                switch (extension.ToLower())
                {
                    case ".png":
                        return ImageFormat.Png;
                    default:
                        return ImageFormat.Jpeg;
                }
            }

System.Drawing.Image.FromFile "System.OutOfMemoryException: Out of memory."

System.Drawing.Image.FromFile "System.OutOfMemoryException: Out of memory."

c#

.net

out-of-memory

system.drawing