c# – 使用jquery和handler(ashx)在上传文件中找不到’错误’

概述UploadHandler.ashx.cs public class UploadHandler : IHttpHandler{ public void ProcessRequest(HttpContext context) { context.Response.ContentType = "text/plain"; try { UploadHandler.ashx.cs

public class UploadHandler : IhttpHandler{    public voID ProcessRequest(httpContext context)    {        context.Response.ContentType = "text/plain";        try        {            string dirFullPath = httpContext.Current.Server.MapPath("~/Uploader/");            string[] files;            int numfiles;            files = System.IO.Directory.Getfiles(dirFullPath);            numfiles = files.Length;            numfiles = numfiles + 1;            string str_image = "";            foreach (string s in context.Request.files)            {                httpPostedfile file = context.Request.files[s];                string filename = file.filename;                string fileExtension = file.ContentType;                if (!string.IsNullOrEmpty(filename))                {                    fileExtension = Path.GetExtension(filename);                    str_image = "MyPHOTO_" + numfiles.ToString() + fileExtension;                    string pathToSave_100 = httpContext.Current.Server.MapPath("~/Uploader/") + str_image;                    file.SaveAs(pathToSave_100);                }            }            //  database record update logic here  ()            context.Response.Write(str_image);        }        catch (Exception ac)        {        }    }    public bool IsReusable    {        get        {            return false;        }    }}

JsCode

/Image Upload codefunction sendfile(file) {    var formData = new FormData();    formData.append('file',$('#f_UploadImage')[0].files[0]);    $.AJAX({        url: 'UploadHandler.ashx',type: 'POST',data: formData,cache: false,processData: false,ContentType: false,success: function(result) {            if (result != 'error') {                var my_path = "Uploader/" + result;                $("#myUploadedimg").attr("src",my_path);            }        },error: function(err) {            alert(err.statusText);        }    });}function callimgUploader() {    var _URL = window.URL || window.webkitURL;    $("#f_UploadImage").on('change',function() {        var file,img;        if ((file = this.files[0])) {            img = new Image();            img.onload = function() {                sendfile(file);            };            img.onerror = function() {                alert("Not a valID file:" + file.type);            };            img.src = _URL.createObjectURL(file);        }    });}

注意：我的Aspx页面是不同的文件夹和Image Folder和UploadHandler.ashx.cs是路径文件夹错了吗？

运行AJAX请求后每次给出Not-Found错误怎么能修复它.

谢谢.

解决方法 您没有提到您正在使用哪个上传控件,我假设它是服务器端,您需要按如下方式访问它

更改

$('#f_UploadImage')

至

$('#<%= f_UploadImage.ClIEntID %>')

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