问题描述
我正在尝试使用jquery ajax上传文件,我可以看到文件对象,其名称,大小等。
在控制台中使用formdata.get("files")
,但是context.request.files
的大小始终为零,似乎服务器未从客户端接收文件,HttpPostedFileBase
请求始终为空。
如何解决?
HTML:
<%@ Page Language="C#" AutoEventWireup="true" CodeBehind="UploadKpData.aspx.cs" Inherits="WebApp.Admin.UploadKpData" %>
<!DOCTYPE html>
<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
<Meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title></title>
<script type="text/javascript" src="./../Scripts/jquery-1.4.4.min.js"></script>
</head>
<body>
<div>
<div>
<input type="file" id="kpData"/>
<button type="submit" id="uploadKp" />
</div>
</div>
</body>
<script>
$("#uploadKp").click(function () {
var formdata = new FormData();
var files = $("#kpData").get(0).files[0];
formdata.append("files",files);
$.ajax({
url: "../../ds/UploadExcel.ashx",type: "POST",async: false,contentType: false,// Not to set any content header
processData: false,// Not to process data
data: formdata,success: function (result) {
alert(result);
},error: function (err) {
alert(err.statusText);
}
});
})
</script>
</html>
上传Excel.ashx:
using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
namespace WebApp.ds
{
public class UploadExcel : IHttpHandler
{
public void ProcessRequest(HttpContext context)
{
HttpFileCollection file = context.Request.Files;
HttpPostedFile file1 = file[0];
string fileName = context.Server.MapPath("~/tmp/" + "test2.xlsx");
file1.SaveAs(fileName);
context.Response.ContentType = "text/plain";
}
public bool IsReusable
{
get
{
return false;
}
}
}
}
谢谢!