//前台
<script type="text/javascript">
//下面用于多图片上传预览功能
function setImagePreviews(avalue) {
var docObj = document.getElementById("doc");
var dd = document.getElementById("dd");
dd.innerHTML = "";
var fileList = docObj.files;
for (var i = 0; i < fileList.length; i++) {
dd.innerHTML += "<div style='float:left' > <img id='img" + i + "' /> </div>";
var imgObjPreview = document.getElementById("img" + i);
if (docObj.files && docObj.files[i]) {
//火狐下，直接设img属性
imgObjPreview.style.display = 'block';
imgObjPreview.style.width = '150px';
imgObjPreview.style.height = '180px';
//imgObjPreview.src = docObj.files[0].getAsDataURL();
//火狐7以上版本不能用上面的getAsDataURL()方式获取，需要一下方式
imgObjPreview.src = window.URL.createObjectURL(docObj.files[i]);
}
else {
//IE下，使用滤镜
docObj.select();
var imgSrc = document.selection.createRange().text;
alert(imgSrc)
var localImagId = document.getElementById("img" + i);
//必须设置初始大小
localImagId.style.width = "150px";
localImagId.style.height = "180px";
//图片异常的捕捉，防止用户修改后缀来伪造图片
try {
localImagId.style.filter = "progid:DXImageTransform.Microsoft.AlphaImageLoader(sizingMethod=scale)";
localImagId.filters.item("DXImageTransform.Microsoft.AlphaImageLoader").src = imgSrc;
}
catch (e) {
alert("您上传的图片格式不正确，请重新选择!");
return false;
}
imgObjPreview.style.display = 'none';
document.selection.empty();
}
}
return true;
}
</script>
</head>
<body>
<div>
<form action="@Url.Action("csscff")" method="post" enctype="multipart/form-data">
<input type="file" name="file" id="doc" multiple="multiple" style="150px;" onchange="javascript:setImagePreviews();" accept="image/*" />
<br />
<input type="text" name="txt1">
<br />
<input type="submit" value="提交" />
<div id="dd" style=" 990px;"></div>
</form>
</div>
</body>
</html>
//控制器
//上传
[HttpPost]
public ActionResult csscff(string txt1,HttpPostedFileBase[] file)
{
if (new List<HttpPostedFileBase>(file).Contains(null))
{
return Content("<script>alert('请完整输入');location.href='BackstageIndex'</script>");
}
else {
var counts = "";
for (int i = 0; i < file.Length; i++)
{
// Qccords m = new Qccords();
string savePath = Server.MapPath("~/img/" + DateTime.Now.ToString("yyyyMMdd") + "/");
//文件大小 MB
// double FileSize = file[i].ContentLength / 1024000;
if (!Directory.Exists(savePath))
{
Directory.CreateDirectory(savePath);
}
var fileName = file[i].FileName;
var ExtensionName = Path.GetExtension(fileName);
var fileSavePath = savePath + DateTime.Now.ToString("yyyyMMddHHmmsssfff") + ExtensionName;
file[i].SaveAs(fileSavePath);
var file_Name = "/" + fileSavePath.Substring(Server.MapPath("~/").Length).Replace("\", "/");
// m.PhotoAlbum_State = 0;
// m.PhotoAlbum_Address = file_Name;
// m.User_Id = Convert.ToInt32(Session["User_Id"]);
// m.PhotoAlbum_Size = FileSize.ToString();
// m.PhotoAlbum_Name = fileName;
var txt1s = txt1;
counts = Convert.ToString(b.Qradd(file_Name, fileName,txt1));
}
if (Convert.ToInt32(counts) > 0)
{
return Content("<script>alert('上传成功');location.href='BackstageIndex'</script>");
}
else
{
return Content("<script>alert('上传失败');location.href='BackstageIndex'</script>");
}
}
// return View();
}