public async Task <IActionResult> UploadImage(IFormFile formFile, CancellationToken cancellationToken)
{
var param = new SingleImageUploadParam()
{
Request = Request,
FormFile = formFile,
RootPath = Web.WebRootPath,
Module = "Test",
Group = "Logo",
ThumbCutMode = ThumbnailMode.Cut,
Thumbs = new List <string> {
"200x300", "400x200"
},
};
var result = await _fileUploadService.UploadImageAsync(param, cancellationToken);
return(View(result));
}
public async Task <Result <ImageFileInfo> > UploadImage([Required] IFormFile formFile, CancellationToken cancellationToken)
{
var param = new SingleImageUploadParam()
{
Request = Web.Request,
FormFile = formFile,
RootPath = Web.WebRootPath,
Module = "upload",
Group = "image",
//*******裁剪和等比缩放 二者取其一*******
//是否开自动裁剪原图（根据自定大小，自动对宽高裁剪）
//IsCutOriginal = true,
//AutoCutSize = 800,
//是否开启等比缩放原图（根据等比大小和压缩质量裁剪）
IsZoomOriginal = true,
Ratio = 50,
Quality = 100,
//ThumbCutMode = ThumbnailMode.Cut,
//Thumbs = new List<string> { "200x300", "400x200" },
};
var result = await _fileUploadService.UploadImageAsync(param, cancellationToken);
result.Url = $"https://www.xx.com/{result.FullPath.Replace("\\", "/")}";
// oss 单文件上传
//var client = _ossFactory.GetClient("images");
//(var res1, string message) = client.Delete("upload/images/master/2019/11/28/test111111.png");
//(var res, string url) = client.Upload("upload/images/master/2019/11/28/test111111.png", @"C:\Users\Nigel\Downloads\QQ图片20200611104303.png");
return(RestFull.Success(data: result));
}
/// <summary>
/// 上传图片。单张图片
/// </summary>
/// <param name="param">参数</param>
/// <param name="cancellationToken">取消令牌</param>
public async Task <ImageFileInfo> UploadImageAsync(SingleImageUploadParam param, CancellationToken cancellationToken = default(CancellationToken))
{
if (param.FormFile == null || param.FormFile.Length < 1)
{
if (param.Request.Form.Files != null && param.Request.Form.Files.Any())
{
param.FormFile = param.Request.Form.Files[0];
}
}
if (param.FormFile == null || param.FormFile.Length < 1)
{
throw new ArgumentNullException("请选择文件!");
}
string fileExt = FileHelper.GetExtension(param.FormFile.FileName);
if (String.IsNullOrEmpty(fileExt) || Array.IndexOf(param.Extensions, fileExt.ToLower()) == -1)
{
throw new Exception("上传图片扩展名是不允许的扩展名。只允许" + param.Extensions.Join(",") + "格式。");
}
if (param.FormFile.Length > param.Size)
{
throw new Exception($"上传文件大小超过限制。图片大小不能超过{new FileSize(param.Size, FileSizeUnit.M).ToString()}。");
}
var imageInfo = await SaveImageAsync(param.FormFile, param.RelativePath, param.RootPath, cancellationToken);
if (param.IsCutOriginal)
{
string orgin = Path.Combine(param.RootPath, imageInfo.FullPath);
string thumPath = $"{orgin}-tmp";
ImageHelper.MakeThumbnail(orgin, thumPath, param.OriginalWidth, param.OriginalHeight, ThumbnailMode.Cut);
System.IO.File.Copy(thumPath, orgin, true);
FileHelper.Delete(thumPath);
}
if (param.Thumbs.Count == 0 || param.Thumbs == null || param.Thumbs.Count == 0)
{
return(imageInfo);
}
foreach (var thumbSize in param.Thumbs)
{
var _size = thumbSize.Split('x', StringSplitOptions.RemoveEmptyEntries);
if (_size.Length < 2)
{
continue;
}
var thumbPath = Path.Combine(imageInfo.Path, $"{imageInfo.Id.ToString().Replace("-", "")}-{thumbSize}.{imageInfo.Extension}");
var thumb = Path.Combine(param.RootPath, thumbPath);
var orgin = Path.Combine(param.RootPath, imageInfo.FullPath);
ImageHelper.MakeThumbnail(orgin, thumb, _size[0].ToInt(), _size[1].ToInt(), param.ThumbCutMode);
imageInfo.Thumbs.TryAdd(thumbSize, thumbPath);
}
return(imageInfo);
}
