jQuery File Upload 插件要求我下载文件，这是怎么回事? [英] jQuery File Upload plugin asks me to download the file, what is wrong?

问题描述

我正在使用 https://github.com/blueimp/jQuery-File-Upload 我能够将文件上传并保存到指定的文件夹，然后我返回 Json 对象.然后浏览器(我使用 IE8)弹出文件下载"对话框并要求我下载一个名为upload75bea5a4"且没有扩展名的文件.我就是想不通是哪里出了问题?

解决方案

我使用的是同一个插件，它对我来说没有任何问题.我将发布我正在使用的代码，以便为您提供帮助.我在 Scott Hanselman 的博客 看到的 C# 代码(我做了一些改动).p>

用于存储文件属性的类:

公共类 ViewDataUploadFilesResult{公共字符串名称 { 获取；放;}公共 int 长度 { 获取；放;}公共字符串类型 { 获取；放;}}

上传代码，由ajax调用:

 [HttpPost]公共字符串 UploadFiles(){var r = 新列表<ViewDataUploadFilesResult>();Core.Settings 设置 = new Core.Settings();foreach(Request.Files 中的字符串文件){HttpPostedFileBase hpf = Request.Files[file] as HttpPostedFileBase;如果(hpf.ContentLength == 0)继续;string savedFileName = Path.Combine(settings.StorageLocation + "\Files\", Path.GetFileName(hpf.FileName));hpf.SaveAs(savedFileName);r.Add(新的 ViewDataUploadFilesResult(){名称 = hpf.FileName，长度 = hpf.ContentLength，类型 = hpf.ContentType});}返回 "{"name":"" + r[0].Name + "","type":"" + r[0].Type + "","size":"" + string.Format("{0} bytes", r[0].Length) + ""}";}

创造魔法的 javascript 片段:

$('#file_upload').fileUploadUI({上传表:$('#files'),下载表:$('#files')，buildUploadRow:函数(文件，索引){return $('<tr><td>' + 文件[索引].name + '</td>' +'<td class="file_upload_progress"><div></div></td>'+'<td class="file_upload_cancel">'+'<button class="ui-state-default ui-corner-all" title="取消">'+'<span class="ui-icon ui-icon-cancel">取消</span>'+'</button></td></tr>');},buildDownloadRow:函数(文件){return $('<tr><td>' + file.name + '</td></tr>');}});

看看并做一些测试.

--

编辑

我写了一篇关于它的文章.

I'm using https://github.com/blueimp/jQuery-File-Upload and I was able to upload and save the file to designated folder, and then I return the Json object. Then the browser (I use IE8) pops "File Download" dialog and asks me to download a file named "upload75bea5a4" with no extension. I just could not figure out what is wrong?

解决方案

I am using the same plugin and it's working without any problems for me. I will post the codes I am using so that can help you. The C# code I saw at Scott Hanselman's blog (and I made few changes).

A class to store the properties of the file:

public class ViewDataUploadFilesResult
{
    public string Name { get; set; }
    public int Length { get; set; }
    public string Type { get; set; }
}

The upload code, which is called by the ajax:

    [HttpPost]
    public string UploadFiles()
    {
        var r = new List<ViewDataUploadFilesResult>();
        Core.Settings settings = new Core.Settings();
        foreach (string file in Request.Files)
        {
            HttpPostedFileBase hpf = Request.Files[file] as HttpPostedFileBase;
            if (hpf.ContentLength == 0)
                continue;
            string savedFileName = Path.Combine(settings.StorageLocation + "\Files\", Path.GetFileName(hpf.FileName));
            hpf.SaveAs(savedFileName);

            r.Add(new ViewDataUploadFilesResult()
            {
                Name = hpf.FileName,
                Length = hpf.ContentLength,
                Type = hpf.ContentType
            });
        }
        return "{"name":"" + r[0].Name + "","type":"" + r[0].Type + "","size":"" + string.Format("{0} bytes", r[0].Length) + ""}";
    }

The javascript piece which makes the magic:

$('#file_upload').fileUploadUI({
    uploadTable: $('#files'),
    downloadTable: $('#files'),
    buildUploadRow: function (files, index) {
        return $('<tr><td>' + files[index].name + '</td>' +
                '<td class="file_upload_progress"><div></div></td>' +
                '<td class="file_upload_cancel">' +
                '<button class="ui-state-default ui-corner-all" title="Cancel">' +
                '<span class="ui-icon ui-icon-cancel">Cancel</span>' +
                '</button></td></tr>');
    },
    buildDownloadRow: function (file) {
        return $('<tr><td>' + file.name + '</td></tr>');
    }
});

Take a look and make some tests.

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EDIT

I wrote an article about it.

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