/// <summary>
/// 保存文件
/// </summary>
/// <param name="formFile">文件</param>
/// <param name="fileInfo">文件信息</param>
/// <param name="rootPath">根目录</param>
/// <param name="calcMd5"></param>
/// <param name="cancellationToken">取消token</param>
/// <returns></returns>
private async Task <FileInfo> UploadSave(IFormFile formFile, FileInfo fileInfo, string rootPath, bool calcMd5, CancellationToken cancellationToken = default)
{
fileInfo.SaveName = $"{Guid.NewGuid().ToString().Replace("-", "")}.{fileInfo.Ext}";
var fullDir = Path.Combine(rootPath, fileInfo.Path);
if (!Directory.Exists(fullDir))
{
Directory.CreateDirectory(fullDir);
}
//写入
var fullPath = Path.Combine(fullDir, fileInfo.SaveName);
if (calcMd5)
{
fileInfo.Md5 = await SaveWidthMd5(formFile, fullPath, cancellationToken);
}
else
{
await Save(formFile, fullPath, cancellationToken);
}
return(fileInfo);
}
/// <summary>
/// 单文件文件上传
/// </summary>
/// <param name="model"></param>
/// <param name="cancellationToken"></param>
/// <returns></returns>
public async Task <IResultModel <FileInfo> > Upload(FileUploadModel model, CancellationToken cancellationToken = default)
{
var result = new ResultModel <FileInfo>();
if (model.FormFile == null || model.FormFile.Length < 1)
{
if (model.Request.Form.Files != null && model.Request.Form.Files.Any())
{
model.FormFile = model.Request.Form.Files[0];
}
}
if (model.FormFile == null || model.FormFile.Length < 1)
{
return(result.Failed("请选择文件!"));
}
var name = model.FileName.IsNull() ? model.FormFile.FileName : model.FileName;
var size = model.FormFile.Length;
var fileInfo = new FileInfo(name, size);
if (model.MaxSize > 0 && model.MaxSize < size)
{
return(result.Failed($"文件大小不能超过{new FileSize(model.MaxSize).ToString()}"));
}
if (model.LimitExt != null && !model.LimitExt.Any(m => m.EqualsIgnoreCase(fileInfo.Ext)))
{
return(result.Failed($"文件格式无效，请上传{model.LimitExt.Aggregate((x, y) => x + "," + y)}格式的文件"));
}
var date = DateTime.Now;
fileInfo.Path = Path.Combine(model.RelativePath, date.ToString("yyyy"), date.ToString("MM"), date.ToString("dd"));
var resultModel = await UploadSave(model.FormFile, fileInfo, model.RootPath, model.CalcMd5, cancellationToken);
return(result.Success(resultModel));
}
