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？
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>
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 });
}
}
