保存图片更新试试

DH.Commons/Helper/ImageSaveHelper.cs

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+
+using System;
+using System.Collections.Concurrent;
+using System.Collections.Generic;
+using System.Drawing;
+using System.Drawing.Imaging;
+using System.IO;
+using System.Linq;
+using System.Text;
+using System.Threading;
+using System.Threading.Tasks;
+using DH.Commons.Helper;
+
+namespace DH.Commons.Enums
+{
+    public class ImageSaveHelper
+    {
+        public event Action<DateTime, string> OnImageSaveExceptionRaised;
+
+        //private string baseDirectory = "";
+        //public string BaseDirectory
+        //{
+        //    get => baseDirectory;
+        //    set
+        //    {
+        //        baseDirectory = value;
+        //        if (string.IsNullOrWhiteSpace(baseDirectory) || !Path.IsPathRooted(baseDirectory))
+        //        {
+        //            baseDirectory = Path.Combine(AppDomain.CurrentDomain.BaseDirectory, "Images");
+        //        }
+        //    }
+        //}
+        public bool EnableImageSave { get; set; } = true;
+
+        public ImageSaveHelper() { }
+        public ImageSaveHelper(bool enableImageSave = true)
+        {
+            EnableImageSave = enableImageSave;
+        }
+
+
+        object lockObj = new object();
+        ////耗时操作从 _taskFactory分配线程
+        //public TaskFactory _taskFactory = new TaskFactory(TaskCreationOptions.LongRunning, TaskContinuationOptions.LongRunning);
+        readonly ConcurrentQueue<ImageSaveSet> _imageQueue = new ConcurrentQueue<ImageSaveSet>();
+        Task _saveTask = null;
+        readonly object _saveLock = new object();
+
+        public async void ImageSaveAsync(ImageSaveSet set)
+        {
+            if (!EnableImageSave)
+                return;
+
+            await Task.Run(() =>
+            {
+                _imageQueue.Enqueue(set);
+
+                lock (_saveLock)
+                {
+                    if (_saveTask == null)
+                    {
+                        _saveTask = Task.Run(async () =>
+                        {
+                            try
+                            {
+                                while (true)
+                                {
+                                    while (_imageQueue.Count > 0)
+                                    {
+                                        if (_imageQueue.TryDequeue(out ImageSaveSet saveSet))
+                                        {
+                                            if (!Directory.Exists(Path.GetDirectoryName(saveSet.FullName)))
+                                            {
+                                                Directory.CreateDirectory(Path.GetDirectoryName(saveSet.FullName));
+                                            }
+                                            if (saveSet.SaveImage != null)
+                                            {
+                                                saveSet.SaveImage.Save(saveSet.FullName, saveSet.ImageFormat);
+                                                saveSet.SaveImage.Dispose();
+                                            }
+                                            saveSet = null;
+                                        }
+                                    }
+
+                                    await Task.Delay(2000);
+                                }
+                            }
+                            catch (Exception ex)
+                            {
+                                OnImageSaveExceptionRaised?.Invoke(DateTime.Now, $"图片保存异常：{ex.GetExceptionMessage()}");
+                            }
+                        });
+                    }
+                }
+            });
+        }
+    }
+
+    public class ImageSaveSet
+    {
+        public string FullName { get; set; }//带后缀 全路径
+
+        public Bitmap SaveImage { get; set; }
+
+        public ImageFormat ImageFormat { get; set; } = ImageFormat.Jpeg;
+    }
+}