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實(shí)現(xiàn)Asp.net mvc上傳頭像加剪裁功能

在我們使用QQ上傳頭像，注冊(cè)用戶賬號(hào)時(shí)是不是都會(huì)遇到上傳圖像，并根據(jù)自己的要求對(duì)圖像進(jìn)行裁剪，這是怎么實(shí)現(xiàn)的吶？

本文主要介紹了Asp.net mvc實(shí)現(xiàn)上傳頭像加剪裁功能，分享給大家供大家參考。具體如下：

運(yùn)行效果截圖如下：

具體代碼如下：

前臺(tái)代碼

link href="~/Content/fineuploader.css" rel="stylesheet" />
link href="~/Content/jquery.Jcrop.min.css" rel="stylesheet" />
link href="~/Content/crop.min.css" rel="stylesheet" />
script src="~/Scripts/jquery-1.8.2.min.js">/script>
script src="~/Scripts/jquery.fineuploader-3.1.min.js">/script>
script src="~/Scripts/jquery.Jcrop.min.js">/script>
script src="~/Scripts/crop.js">/script>

div id="jquery-wrapped-fine-uploader">/div>
 div id="message">/div>
 div id="crop_wrap">
  div id="crop_holder">
   div id="crop_area" class="border">
    img id="crop_image" alt="" src="" class="preview-image" style="display: none" />
   /div>
   div id="preview_area">
    div id="preview_title">當(dāng)前頭像/div>
    div id="preview_large_text" class="preview-text">180px × 180px/div>
    div id="preview_large_wrap" class="border">
     img id="preview_large" alt="" src="@ViewBag.Path" class="preview-image" style=""/>/div>
   /div>
  /div>
  div id="crop_operation" style="display: none;">
   form id="form_crop" action="/home/index" method="post">
    input type="hidden" name="x" id="x">
    input type="hidden" name="y" id="y">
    input type="hidden" name="w" id="w">
    input type="hidden" name="h" id="h">
    input type="hidden" name="imgsrc" id="imgsrc">
    input id="crop_operation_submit" type="submit" value="裁切并保存" />span id="crop_operation_msg" style="display: none" class="green">/span>
   /form>
  /div>
  div id="croped_message" class="green">/div>
 /div>

后臺(tái)代碼

public ActionResult Index()
  {
   return View();
  }

  /// summary>
  /// 保存縮略圖
  /// /summary>
  /// param name="form">/param>
  /// returns>/returns>
  [HttpPost]
  public ActionResult Index(FormCollection form)
  {
   int x = Convert.ToInt32(form["x"]);
   int y = Convert.ToInt32(form["y"]);
   int w = Convert.ToInt32(form["w"]);
   int h = Convert.ToInt32(form["h"]);
   string imgsrc = form["imgsrc"].Substring(0, form["imgsrc"].LastIndexOf("?"));
   string path = ImgHandler.CutAvatar(imgsrc, x, y, w, h);

   //保存Path
   
   ViewBag.Path = path;
   return View();
  }

  /// summary>
  /// 上傳頭像
  /// /summary>
  /// param name="qqfile">/param>
  /// returns>/returns>
  [HttpPost]
  public ActionResult ProcessUpload(string qqfile)
  {
   try
   {
    string uploadFolder = "/Upload/original/" + DateTime.Now.ToString("yyyyMM") + "/";
    string imgName = DateTime.Now.ToString("ddHHmmssff");
    string imgType = qqfile.Substring(qqfile.LastIndexOf("."));
    string uploadPath = "";
    uploadPath = Server.MapPath(uploadFolder);
    if (!Directory.Exists(uploadPath))
    {
     Directory.CreateDirectory(uploadPath);
    }
    using (var inputStream = Request.InputStream)
    {
     using (var flieStream = new FileStream(uploadPath + imgName + imgType, FileMode.Create))
     {
      inputStream.CopyTo(flieStream);
     }
    }

    return Json(new { success = true, message = uploadFolder + imgName + imgType });
   }
   catch (Exception e)
   {
    return Json(new { fail = true, message = e.Message });
   }
  }

以上就是實(shí)現(xiàn)Asp.net mvc上傳頭像加剪裁功能的部分代碼，小編分享給大家參考，希望對(duì)大家的學(xué)習(xí)有所幫助。

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