MVC 4 Razor文件上传
我是新来的MVC 4，我试图在我的网站上实现文件上传控制。 我无法找到这个错误。我在我的文件中得到一个空值。
控制器：
public class UploadController : BaseController
{
public ActionResult UploadDocument()
{
return View();
}
[HttpPost]
public ActionResult Upload(HttpPostedFileBase file)
{
if (file != null && file.ContentLength > 0)
{
var fileName = Path.GetFileName(file.FileName);
var path = Path.Combine(Server.MapPath("~/Images/"), fileName);
file.SaveAs(path);
}
return RedirectToAction("UploadDocument");
}
}
视图：
@using (Html.BeginForm("Upload", "Upload", FormMethod.Post, new { enctype = "multipart/form-data" }))
{
<input type="file" name="FileUpload" />
<input type="submit" name="Submit" id="Submit" value="Upload" />
}
Upload方法的HttpPostedFileBase参数必须与file input名称相同。
所以只需将输入更改为：
<input type="file" name="file" />
另外，您可以在Request.Files找到这些文件：
[HttpPost]
public ActionResult Upload()
{
if (Request.Files.Count > 0)
{
var file = Request.Files[0];
if (file != null && file.ContentLength > 0)
{
var fileName = Path.GetFileName(file.FileName);
var path = Path.Combine(Server.MapPath("~/Images/"), fileName);
file.SaveAs(path);
}
}
return RedirectToAction("UploadDocument");
}
澄清它。 模型：
public class ContactUsModel
{
public string FirstName { get; set; }
public string LastName { get; set; }
public string Email { get; set; }
public string Phone { get; set; }
public HttpPostedFileBase attachment { get; set; }
发布行动
public virtual ActionResult ContactUs(ContactUsModel Model)
{
if (Model.attachment.HasFile())
{
//save the file
//Send it as an attachment
Attachment messageAttachment = new Attachment(Model.attachment.InputStream, Model.attachment.FileName);
}
}
最后是检查hasFile的扩展方法
using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.Mvc;
namespace AtlanticCMS.Web.Common
{
public static class ExtensionMethods
{
public static bool HasFile(this HttpPostedFileBase file)
{
return file != null && file.ContentLength > 0;
}
}
}
查看页面
@using (Html.BeginForm("ActionmethodName", "ControllerName", FormMethod.Post, new { id = "formid" }))
{
<input type="file" name="file" />
<input type="submit" value="Upload" class="save" id="btnid" />
}
脚本文件
$(document).on("click", "#btnid", function (event) {
event.preventDefault();
var fileOptions = {
success: res,
dataType: "json"
}
$("#formid").ajaxSubmit(fileOptions);
});
在控制器中
[HttpPost]
public ActionResult UploadFile(HttpPostedFileBase file)
{
}