MVC框架实现文件的上传（支持多文件上传）
controllers/View：
(Controllers方法可以公用，只需增加View里面的<input type="file" name="FileUpload1" value="dataURL"/>)
<%
using (Html.BeginForm("", "home", FormMethod.Post, new {enctype="multipart/form-data"}))
{%>
<input type="file" name="FileUpload1" /><br />
<input type="file" name="FileUpload2" /><br />
<input type="file" name="FileUpload3" /><br />
<input type="file" name="FileUpload4" /><br />
<input type="file" name="FileUpload5" /><br />
<input type="submit" name="Submit" id="Submit" value="Upload" />
<% }%>
LinkBotton事件
<a href="<%=Url.Action("DeleteUser")%>?id=<%=Model.UserId%>" >删除</a
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// <summary>
/// 显示文件列表
/// </summary>
/// <returns></returns>
public ViewResult List()
{
UpLoadFile f = new UpLoadFile();
List<UpLoadFile> list = f.List();
ViewBag.list = list;
return View("Upload");
}
/// <summary>
/// 接收文件，并保存到数据库中的方法
/// </summary>
/// <returns></returns>
public ViewResult Upload()
{
for (int i = 0; i < Request.Files.Count; i++)
{
HttpPostedFileBase file = Request.Files[i];
//存入文件
if (file.ContentLength > 0)
{
file.SaveAs(Server.MapPath("~/") + System.IO.Path.GetFileName(file.FileName));
}
//存入数据库
if (file.ContentLength > 0)
{
//得到文件数组
byte[] fileData = new Byte[file.ContentLength];
file.InputStream.Position = 0; //此句很关键
file.InputStream.Read(fileData, 0, file.ContentLength);
//得到文件大小
int fileLength = file.ContentLength;
//得到文件名字
string fileName = System.IO.Path.GetFileName(file.FileName);
//得到文件类型
string fileType = file.ContentType;
//自定义文件对象
UpLoadFile f = new UpLoadFile();
f.PersonImage = fileData;
f.PersonName = fileName;
f.PersonImageType = fileType;
f.PersonImageSize = fileLength;
f.PersonImageFileName = fileName;
f.SaveToDataBase();
}
}
return View(List());
}
/// <summary>
/// 显示图片
/// </summary>
/// <param name="id"></param>
/// <returns></returns>
public FileContentResult Display(int id)
{
UpLoadFile f = new UpLoadFile();
f.LoadById(id);
return new FileContentResult(f.PersonImage, f.PersonImageType);
}
4，视图文件，显示列表和上传表单
Upload.cshtml 代码
<!DOCTYPE html>
<html>
<head>
<title>多文件上传</title>
</head>
<body>
<h2>多文件上传</h2>
<table border="1">
<thead>
<th>文件名</th>
<th>文件类型</th>
<th>浏览</th>
</thead>
@* 对于列表显示页面，进行特殊的处理，如果没有记录，则不显示列表。 *@
@if (ViewBag.list != null)
{
<tbody>
@for (int i = 0; i < ViewBag.list.Count; i++)
{
<tr>
<td>@ViewBag.list[i].PersonName</td>
<td>@ViewBag.list[i].PersonImageType</td>
<td><img alt="@ViewBag.list[i].PersonName"
src='@Url.Action("Display", "Home", new { id = ViewBag.list[i].PersonId
})' /></td>
</tr>
}
</tbody>
}
</table>
<form action="/Home/Upload" enctype="multipart/form-data" method="post">
<input type="file" name="f1" /><br />
<input type="file" name="f2" /><br />
<input type="submit" value="多文件上传" />
</form>
</body>
</html>