/// <summary>/// 图片上传 Base64解码/// </summary>/// <param name="dataURL">Base64数据</param>/// <param name="path">保存路径</param>/// <param name="imgName">图片名字</param>/// <returns>返回一个相对路径</returns>public string decodeBase64ToImage(string dataURL, string path, string imgName){dataURL = dataURL.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byte[] bytes = Convert.FromBase64String(dataURL);MemoryStream memStream = new MemoryStream(bytes);Image mImage = Image.FromStream(memStream);Bitmap bp = new Bitmap(mImage);MemoryStream ms = new MemoryStream();string filename = path + "/" + imgName + ".jpeg";//所要保存的相对路径及名字string tmpRootDir = System.Web.HttpContext.Current.Server.MapPath(System.Web.HttpContext.Current.Request.ApplicationPath.ToString()); //获取程序根目录 string imagesurl2 = tmpRootDir + filename.Replace(@"/", @"\"); //转换成绝对路径 bp.Save(imagesurl2, System.Drawing.Imaging.ImageFormat.Jpeg);//保存到服务器路径return filename;//返回相对路径                   }//前台传回的json图片编码转为数组public string JsonToArray(string json){JavaScriptSerializer jsS = new JavaScriptSerializer();JArray userArry = (JArray)JsonConvert.DeserializeObject(json);//获取树形用户json字符串string userList = userArry.ToString();//解析用户json信息JArray jar = (JArray)JsonConvert.DeserializeObject(userList);//lists = UpdateGroup_mem_Controls(json);string[] cname = new string[jar.Count];for (int i = 0; i < jar.Count; i++){JObject j = JObject.Parse(jar[i].ToString());string name = j["name"].ToString();string base64 = j["base64"].ToString();cname[i] = decodeBase64ToImage(base64, "Image", DateTime.Now.ToFileTimeUtc().ToString());}string photoName = string.Join(",", cname);//数组转成字符串return photoName;}