我正在使用带有jquery客户端脚本的MVC 4和Backload文件上传器。我使用nuget获取Demo包,下载控制器和视图作为起点。
我的问题出现在我的本地服务器和我的在线服务器上,在我上传文件后,应用程序无法准确显示上传的所有文件。通常它只会显示4或5个文件并忽略其余文件。即使我删除了正在显示的文件之一并刷新页面,它仍然显示相同的4或5个图像。我已经确认应用程序正在上载和/或删除文件。我尝试通过点击cntl F5清除缓存,但无济于事。
任何人都可以指出我正确的方向来纠正这个问题。以下是来自NuGet下载的演示的视图和控制器。
控制器:
using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.Mvc;
namespace Spotless_Interiors.Controllers
{
[Authorize]
public class BackloadDemoController : Controller
{
public ActionResult Index()
{
return View();
}
}
}
查看:
@{
ViewBag.Title = "File Upload";
}
@section topScripts {
@Styles.Render("~/Content/themes/base/css")
@Styles.Render("~/Content/css")
<!-- We use Backloads. bundeling feature to register only those client side javascript and style files of the jQuery File Upload Plugin
that are needed -->
@Styles.Render("~/bundles/fileupload/bootstrap/BasicPlusUI/css")
<!-- Bootstrap CSS fixes for IE6 -->
<!--[if lt IE 7]><link rel="stylesheet" href="/Content/FileUpload/css/bootstrap/bootstrap-ie6.debug.css"><![endif]-->
<!--[if lt IE 9]><script src="http://html5shim.googlecode.com/svn/trunk/html5.js"></script><![endif]-->
<!--[if IE]><meta http-equiv="X-UA-Compatible" content="IE=edge,chrome=1"><![endif]-->
}
@section scripts {
@Scripts.Render("~/bundles/jquery")
@Scripts.Render("~/bundles/jqueryui")
<!-- We use Backloads. bundeling feature to register only those client side javascript and style files of the jQuery File Upload Plugin that are needed -->
@Scripts.Render("~/bundles/fileupload/bootstrap/BasicPlusUI/js")
<!-- Initialize the jQuery File Upload Plugin -->
<script src="~/Scripts/FileUpload/backload.demo.js"></script>
}
<div>
<!-- The file upload form used as target for the file upload widget -->
<form id="fileupload" action="/Backload/UploadHandler" method="POST" enctype="multipart/form-data">
<!-- Redirect browsers with JavaScript disabled to the origin page -->
<noscript><input type="hidden" name="redirect" value="/"></noscript>
<!-- The fileupload-buttonbar contains buttons to add/delete files and start/cancel the upload -->
<div class="row fileupload-buttonbar">
<div class="span7">
<!-- The fileinput-button span is used to style the file input field as button -->
<span class="btn btn-success fileinput-button">
<i class="icon-plus icon-white"></i>
<span>Add files...</span>
<input type="file" name="files[]" multiple>
</span>
<button type="submit" class="btn btn-primary start">
<i class="icon-upload icon-white"></i>
<span>Start upload</span>
</button>
<button type="reset" class="btn btn-warning cancel">
<i class="icon-ban-circle icon-white"></i>
<span>Cancel upload</span>
</button>
<button type="button" class="btn btn-danger delete">
<i class="icon-trash icon-white"></i>
<span>Delete</span>
</button>
<input type="checkbox" class="toggle">
<!-- The loading indicator is shown during file processing -->
<span class="fileupload-loading"></span>
</div>
<!-- The global progress information -->
<div class="span5 fileupload-progress fade">
<!-- The global progress bar -->
<div class="progress progress-success progress-striped active" role="progressbar" aria-valuemin="0" aria-valuemax="100">
<div class="bar" style="width:0%;"></div>
</div>
<!-- The extended global progress information -->
<div class="progress-extended"> </div>
</div>
</div>
<!-- The table listing the files available for upload/download -->
<table role="presentation" class="table table-striped"><tbody class="files" data-toggle="modal-gallery" data-target="#modal-gallery"></tbody></table>
</form>
<!-- The template to display files available for upload -->
<script id="template-upload" type="text/x-tmpl">
{% for (var i=0, file; file=o.files[i]; i++) { %}
<tr class="template-upload fade">
<td>
<span class="preview"></span>
</td>
<td>
<p class="name">{%=file.name%}</p>
{% if (file.error) { %}
<div><span class="label label-important">Error</span> {%=file.error%}</div>
{% } %}
</td>
<td>
<p class="size">{%=o.formatFileSize(file.size)%}</p>
{% if (!o.files.error) { %}
<div class="progress progress-success progress-striped active" role="progressbar" aria-valuemin="0" aria-valuemax="100" aria-valuenow="0"><div class="bar" style="width:0%;"></div></div>
{% } %}
</td>
<td>
{% if (!o.files.error && !i && !o.options.autoUpload) { %}
<button class="btn btn-primary start">
<i class="icon-upload icon-white"></i>
<span>Start</span>
</button>
{% } %}
{% if (!i) { %}
<button class="btn btn-warning cancel">
<i class="icon-ban-circle icon-white"></i>
<span>Cancel</span>
</button>
{% } %}
</td>
</tr>
{% } %}
</script>
<!-- The template to display files available for download -->
<script id="template-download" type="text/x-tmpl">
{% for (var i=0, file; file=o.files[i]; i++) { %}
<tr class="template-download fade">
<td>
<span class="preview">
{% if (file.thumbnail_url) { %}
<a href="{%=file.url%}" title="{%=file.name%}" data-gallery="gallery" download="{%=file.name%}"><img src="{%=file.thumbnail_url%}"></a>
{% } %}
</span>
</td>
<td>
<p class="name">
<a href="{%=file.url%}" title="{%=file.name%}" data-gallery="{%=file.thumbnail_url&&'gallery'%}" download="{%=file.name%}">{%=file.name%}</a>
</p>
{% if (file.error) { %}
<div><span class="label label-important">Error</span> {%=file.error%}</div>
{% } %}
</td>
<td>
<span class="size">{%=o.formatFileSize(file.size)%}</span>
</td>
<td>
<button class="btn btn-danger delete" data-type="{%=file.delete_type%}" data-url="{%=file.delete_url%}"{% if (file.delete_with_credentials) { %} data-xhr-fields='{"withCredentials":true}'{% } %}>
<i class="icon-trash icon-white"></i>
<span>Delete</span>
</button>
<input type="checkbox" name="delete" value="1" class="toggle">
</td>
</tr>
{% } %}
</script>
</div>
答案 0 :(得分:1)
由于所有文件都已正确上传/删除并且您清除了客户端缓存,因此这似乎是服务器端缓存问题。您应该使用Fiddler来检查请求和响应的chache标头。
您是否在配置文件中设置了任何缓存选项?尝试在配置文件中设置这样的内容:
<cacheManager lastModified="false" etag="false" expires="0" location="None" mustRevalidate="true" />
。请注意,据我所知,cacheManager是Pro功能,它在本地工作,但不能在具有Standard许可证的远程服务器上运行(我的公司拥有带源代码的Enterprise许可证)
但正如我上面所说,我认为它与您的服务器端缓存设置更相关。因此,上传一个文件,然后删除文件并使用Fiddler检查所有请求/响应。来自Backload的Json共振应始终反映当前文件状态,即使返回304也是如此。禁用Web.config中的所有服务器端缓存设置。