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/// </summary>/// <param name="base64String"></param>/// <param name="filePath"></param>/// <param name="fileName"></param>/// <returns></returns>public static string UpLoadImage(string base64String){	FileStream fs = null;	BinaryWriter bw = null;	try	{		if (string.IsNullOrEmpty(base64String))		{			throw new Exception("圖片參數不能為空");		}		string filePath = "/UpLoad/" + DateTime.Now.Year + "/" + DateTime.Now.Month + "/" + DateTime.Now.Day;		string realPath = HttpContext.Current.Server.MapPath("~/" + filePath);		string day = YearMonthDay;		if (!Directory.Exists(realPath))//如果不存在就創建file文件夾		{			Directory.CreateDirectory(realPath);		}
		string imagePath = filePath + "/" + fileName;		string imageSavePath = realPath + "/" + fileName;		byte[] arr = Convert.FromBase64String(base64String);		fs = new System.IO.FileStream(imageSavePath, System.IO.FileMode.Create);		bw = new System.IO.BinaryWriter(fs);		bw.Write(arr);		bw.Close();		fs.Close();
		return imagePath;	}	catch (Exception ex)	{
		if (bw != null)		{			bw.Close();		}		if (fs != null)		{			fs.Close();		}		throw new Exception(ex.Message);	}}

/// <summary>/// 上傳圖片、視頻 HttpPostedFile/// </summary>/// <returns></returns>[HttpPost]public ApiResponse UploadPostFile(){	try	{		string filePath = "/UpLoad/" + DateTime.Now.Year + "/" + DateTime.Now.Month + "/" + DateTime.Now.Day;		string realPath = HttpContext.Current.Server.MapPath("~/" + filePath);		if (!Directory.Exists(realPath))//如果不存在就創建file文件夾		{			Directory.CreateDirectory(realPath);		}
		HttpPostedFile file = HttpContext.Current.Request.Files[0];		string fileType = HttpContext.Current.Request.Form["fileType"];
		string imagePath = filePath + "/" + "test.jpg";
		file.SaveAs(imagePath);
		return imagePath;	}	catch (Exception e)	{		return BaseApiResponse.ApiError(e.Message);	}}

//為了實現通過實體類獲取文件GlobalConfiguration.Configuration.Formatters.Add(new FormMultipartEncodedMediaTypeFormatter());

/// <param name="formData"></param>/// <returns></returns>[HttpPost]public string UploadFormData(FormData formData){	try	{		string filePath = "/UpLoad/" + DateTime.Now.Year + "/" + DateTime.Now.Month + "/" + DateTime.Now.Day;
		string realPath = HttpContext.Current.Server.MapPath("~/" + filePath);		if (!Directory.Exists(realPath))//如果不存在就創建file文件夾		{			Directory.CreateDirectory(realPath);		}
		string fileType = formData.Fields[0].Value;
		string imagePath = filePath + "/" + "test.jpg";
		FileStream fs = null;		BinaryWriter bw = null;		byte[] arr = formData.Files[0].Value.Buffer;		fs = new System.IO.FileStream(imagePath, System.IO.FileMode.Create);		bw = new System.IO.BinaryWriter(fs);		bw.Write(arr);		bw.Close();		fs.Close();
		return imagePath;	}	catch (Exception e)	{		throw new Exception(ex.Message);	}}