.NET HttpGet 获取服务器文件下的图片信息

 ???????/// <summary> ???????/// 项目文件夹下路径 ?返回流类型数据，如：图片类型 ???????/// </summary> ???????/// <returns></returns> ???????public HttpResponseMessage GetImg() ???????{ ?// ?~/ ImageFile / 001.png ???????????//项目文件夹下路径 ???????????var imgPath = System.Web.Hosting.HostingEnvironment.MapPath("~/ImageFile/2.jpg"); ??????????// 从图片中读取byte ???????????var imgByte = File.ReadAllBytes(imgPath); ??????????// 从图片中读取流 ???????????var imgStream = new MemoryStream(File.ReadAllBytes(imgPath)); ???????????var resp = new HttpResponseMessage(HttpStatusCode.OK) ???????????{ ???????????????Content = new StreamContent(imgStream) ???????????????//或者 ?????????????// ?Content = new ByteArrayContent(imgByte) ???????????}; ???????????resp.Content.Headers.ContentType = new MediaTypeHeaderValue("image/jpg"); ???????????return resp; ???????}

 [HttpGet] ???????public HttpResponseMessage SelectUploadFile() ???????{ ???????????Image img = Image.FromFile(@"C:\ImageFile\2.jpg"); ???????????MemoryStream ms = new MemoryStream(); ???????????img.Save(ms, System.Drawing.Imaging.ImageFormat.Png); ???????????HttpResponseMessage result = new HttpResponseMessage(HttpStatusCode.OK); ???????????result.Content = new ByteArrayContent(ms.ToArray()); ???????????result.Content.Headers.ContentType = new MediaTypeHeaderValue("image/png"); //设置http响应上的Content-Type 为image/Png媒体类型 ???????????return result; ???????}