关于jquery的 $("form").serialize()和 new FormData表单序列化

时间:2023-03-10 07:51:30
关于jquery的  $("form").serialize()和 new FormData表单序列化

$("form").serialize()和 new FormData($('#uploadForm')[0])都是序列化表单,实现表单的异步提交,但是二者有区别

首先,前者,只能序列化表单中的数据 ,比如文本框等input  select等的数据,但是对于文件,比如文件上传,无法实现,那么这时候,FormData就上场了,

new FormData使用需要有一个注意点,

注意点一:,对于jquery的要求是,好像是 版本1.8及其以上方可支持。

另外该对象不仅仅可以序列化文件,一样可以用作表单数据的序列化,(就是说包含了serialize()的功能);

注意点二:看脚本

 $.ajax({
type: 'POST',
data: uploadFormData,
url: '/Artical/Publist',//TypeError: 'append' called on an object that does not implement interface FormData.
processData: false,
contentType: false,
async: false,
success: function (data) {
if (typeof (data) == undefined) {
alert("用户信息已丢失,请重新登录!"); window.parent().location.href = "/Account/Login";
}
if (data.ErrorMsg == "") {
alert('美文发布成功!');
} else { alert(data.ErrorMsg); }
}
});

  注意红色部分脚本以及说明,

processData: false, contentType: false,缺少这二者的设置,将会出现  红色部分的错误提示,提交失败。

以下是一个完整的前后台的参考脚本:
//提交文件
function submitFile() {
$('.btn-publish').click(function () {
//var title = $('.txt-video-title').val();
var uploadFormData = new FormData($('#uploadForm')[]);//序列化表单,$("form").serialize()只能序列化数据,不能序列化文件
$.ajax({
type: 'POST',
data: uploadFormData,
url: '/Artical/Publist',//TypeError: 'append' called on an object that does not implement interface FormData.
processData: false,
contentType: false,
async: false,
success: function (data) {
if (typeof (data) == undefined) {
alert("用户信息已丢失,请重新登录!"); window.parent().location.href = "/Account/Login";
}
if (data.ErrorMsg == "") {
alert('美文发布成功!');
} else { alert(data.ErrorMsg); }
}
}); });
}
/// <summary>
/// 上传新图片,(包含文件上传)
/// </summary>
/// <returns></returns>
public JsonResult UpLoad()
{
if (null != Session[Consts.SYSTEMUERSESSION])
{
string pictureName = Request["videoTitle"];//图片标题
string pictureInfoUrl = "";//图片上传之后的虚拟路径
string pictureCategoryKey = Request["PictureCategoryList"];//视频分类外键ID FileUpLoadResult fileUpLoadPicture = null;//用于输出结果 string fileSavePath = Consts.PICTURESAVEPATH + DateTime.Now.ToString("yyyyMMdd") + "/";//当天时间最为文件夹
string fileName = DateTime.Now.ToString("yyyyMMddHHmmssfff");//生成的文件名称
//上传,如果是视屏文件,自动生成 接切图
fileUpLoadPicture = Request.UpLoad(fileSavePath, null, "", fileName, ""); #region 装箱、入库
if (fileUpLoadPicture.FileSavePath != null)
{
foreach (var path in fileUpLoadPicture.FileSavePath)
{
pictureInfoUrl += (path + ",");
}
pictureInfoUrl = pictureInfoUrl.Remove(pictureInfoUrl.Length - , );
ColumnPicture picture = new ColumnPicture()
{
Id = CombHelper.NewComb(),
PictureTitle = pictureName,
PictureTitleDescription = pictureInfoUrl,
GoodClickTimes = ,
BadClickTimes = ,
AddDate = DateTime.Now,
FavoriteTimes = ,
IsEnabled = true,
ToTop = ,
CustomerKey = ((Customer)Session[Consts.SYSTEMUERSESSION]).Id,
ColumnsCategoryKey = new Guid(pictureCategoryKey)
};
if (_pictureService.Insert(picture))
{
fileUpLoadPicture = new FileUpLoadResult()
{
Status = true,
FileSavePath = null,
ErrorMsg = ""
};
}
}
#endregion return Json(fileUpLoadPicture, JsonRequestBehavior.AllowGet);
}
return null;
}