/*前端使用form-data post 多媒体文件，后端采用HttpFileCollection处理上传的文件
上传的文件临时保存本地后传至阿里云oos，上传成功返回oos的url地址，并将本地文件删除(可以直接传文件流而不需临存本地，C#版的oos通过文件流上传好像有点问题，所以采用了暂存本地通过路径上传)
*/
#region 图片上传
/// <summary> /// 图片上传 /// </summary> /// <returns></returns> [HttpPost] public IHttpActionResult UploadFile([FromUri]string sysAppId) { OperationResult response = new OperationResult { Code = OperationResultType.IllegalOperation, Message = "请求非法" }; // 是否请求包含multipart/form-data。 if (!Request.Content.IsMimeMultipartContent()) { response.Message = "请求头格式必须为：multipart/form-data"; return Json(response); } HttpFileCollection filelist = HttpContext.Current.Request.Files; if (filelist != null && filelist.Count > 0) { HttpPostedFile file = filelist[0]; if (string.IsNullOrWhiteSpace(file.FileName) || !file.FileName.Contains(".")) { return Json(response); } var fileNameSplit = file.FileName.Trim(new[] { '"' }).Split('.'); string fileExName = fileNameSplit[fileNameSplit.Length - 1]; string fileName = string.Format(@"{0}.{1}", DateTime.Now.ToString("yyyyMMddHHmmssfff"), fileExName); string baseFilePath = AppDomain.CurrentDomain.BaseDirectory + "App_Data\\FileUpload\\"; string filePath = baseFilePath + fileName; try { file.SaveAs(filePath); var proxy = new AliyunOssProxy(); string bucketName = "zyunuser"; var rsp = proxy.PutObjToBucket(bucketName, $"{MD5Helper.GetMD5(sysAppId, 16)}/{fileName}", filePath); #region 删除文件 if (File.Exists(filePath)) { File.Delete(filePath); } #endregion if (rsp.IsSuccess) { response.Code = OperationResultType.Success; response.Message = "上传成功"; response.AppendData = rsp.Url; return Json(response); } } catch (Exception ex) { response.Message = ex.Message;LogHelper.Error("UploadFile-error", ex);
return Json(response); } } return Json(response); }#endregion
//前端以base64数据上传文件
#region 图片上传（base64）
/// <summary>
/// 图片上传（base64） /// </summary> /// <param name="sysAppId">当前操作人id</param> /// <returns></returns> [HttpPost] public IHttpActionResult UploadFileBase64([FromUri] string sysAppId = "") { OperationResult response = new OperationResult { Code = OperationResultType.IllegalOperation, Message = "请求非法" }; var base64string = HttpContext.Current.Request.Form["base64string"];if (string.IsNullOrWhiteSpace(base64string))
{ response.Message = "参数base64string必传"; return Json(response); }string baseFilePath = AppDomain.CurrentDomain.BaseDirectory + "App_Data\\FileUpload\\";
string fileName = string.Format(@"b64img_{0}.{1}", DateTime.Now.ToString("yyyyMMddHHmmssfff"), "png"); string filePath = baseFilePath + fileName;MemoryStream stream = null;
Bitmap btm = null; try { var base64 = base64string.Replace("data:image/png;base64,", "").Replace("data:image/jgp;base64,", "").Replace("data:image/jpg;base64,", "").Replace("data:image/jpeg;base64,", "");//将base64头部信息替换 if (!XTools.Base64Utility.IsBase64String(base64)) { return Json(response); }byte[] arr = Convert.FromBase64String(base64);
stream = new MemoryStream(arr, 0, arr.Length);
//Image mImage = Image.FromStream(stream); btm = new Bitmap(stream); btm.Save(filePath, ImageFormat.Png); btm.Dispose(); stream.Dispose();var proxy = new AliyunOssProxy();
string bucketName = "zyunuser";LogHelper.Info($"UploadFile-info:{bucketName},{MD5Helper.GetMD5(sysAppId, 16)}/{fileName},{filePath}");
var rsp = proxy.PutObjToBucket(bucketName, $"{MD5Helper.GetMD5(sysAppId, 16)}/{fileName}", filePath);if (rsp.IsSuccess)
{ response.Code = OperationResultType.Success; response.Message = "上传成功"; response.AppendData = rsp.Url; return Json(response); } } catch (Exception ex) { response.Message = ex.Message; LogHelper.Error("UploadFileBase64-error", ex, "CommonController", "UploadFileBase64"); response.Code = OperationResultType.Error; return Json(response); } finally { if (null != btm) { btm.Dispose(); } if (null != stream) { stream.Close(); stream.Dispose(); } #region 删除文件 if (File.Exists(filePath)) { File.Delete(filePath); } #endregion } return Json(response); }#endregion