public ActionResult ImagePreview()
{
RequestUtil req = new RequestUtil();
string callback = req.String("callback");
int width = req.Int("width", defaultValue: 640);
int height = req.Int("height", defaultValue: 1024);
HttpPostedFileBase pic = Request.Files.Count == 0 ? null : Request.Files[0];
if (pic != null && pic.ContentLength != 0)
{
byte[] imageBuffer = ImageUtil.Compress(pic.InputStream, 40, width, height);
string guid = System.Guid.NewGuid().ToString("N");
CacheUtil.CreateCache("preview-" + guid, 0.1, imageBuffer);
return(Content(HtmlUtil.Result(callback, new { success = true, guid = guid, name = Request.Files.Keys[0] })));
}
else
{
return(Content(HtmlUtil.Result(callback, new { success = false, msg = "您还未选择图片" })));
}
}