Asp.net mvc 3 如何使用MVC 3在web浏览器中查看上载的文件？

我正在尝试允许我的网站的用户通过单击附件图像在web浏览器中查看他们刚刚上载的文件。我已经写了上传功能的代码，现在我只需要一些帮助查看上传完成后的图像。下面我包括了控制器的上传功能和视图附件功能所在的索引视图。如果您需要更多代码来帮助解决此问题，请告诉我，并感谢您抽出一天的时间来帮助我

控制器

[Authorize]
        public String Uploadfile(HttpPostedFileBase file)
        {
            if (file.ContentLength > 0)
            {                
                var fileName = Path.GetRandomFileName();
                var path = Path.Combine(Server.MapPath("~/Uploads"), fileName);
                file.SaveAs(path);
            }
            return file.FileName;
        }

查看

@model PagedList.IPagedList<DBFirstMVC.Models.bug>

@{
    ViewBag.Title = "BugIndex";
    Layout = "~/Views/Shared/_Layout.cshtml";
}

@using PagedList;

<h2 class="corporate sifr">@ViewBag.Title</h2>


<div class="crossband">
@using (Html.BeginForm())
{
    <div class="lefty">
        Search Bugs Index: @Html.TextBox("SearchString")
    </div>
        <input type = "submit" value = "Search" class = "button1" />
}

    <div class="righty">
    @Html.ActionLink("Report a Bug", "ReportBugs", "Support", null, new { @class = "button1" })

    </div>

</div>

<div class="crossband">
    <div class="lefty">

    Page @(Model.PageCount < Model.PageNumber ? 0 : Model.PageNumber)
    of @Model.PageCount
    &nbsp;&nbsp;&nbsp;&nbsp;
    @if (Model.HasPreviousPage)
    {
        @Html.ActionLink("<<", "", new { page = 1, sortOrder = ViewBag.CurrentSort, currentFilter = ViewBag.CurrentFilter, Versions = ViewBag.SelectedVersion })
        @Html.Raw(" ");
        @Html.ActionLink("< Prev", "", new { page = Model.PageNumber - 1, sortOrder = ViewBag.CurrentSort, currentFilter = ViewBag.CurrentFilter, Versions = ViewBag.SelectedVersion })
    }
    else
    {
        @:<<
        @Html.Raw(" ");
        @:< Prev
    }

    @if (Model.HasNextPage)
    {
        @Html.ActionLink("Next >", "", new { page = Model.PageNumber + 1, sortOrder = ViewBag.CurrentSort, currentFilter = ViewBag.CurrentFilter, Versions = ViewBag.SelectedVersion })
        @Html.Raw(" ");
        @Html.ActionLink(">>", "", new { page = Model.PageCount, sortOrder = ViewBag.CurrentSort, currentFilter = ViewBag.CurrentFilter, Versions = ViewBag.SelectedVersion })
    }
    else
    {
        @:Next >
        @Html.Raw(" ")
        @:>>
    }
    </div>

    <div class="righty">
    Showing Records @Model.FirstItemOnPage to @Model.LastItemOnPage from @Model.TotalItemCount records
    </div>
</div>


<table>
    <tr>

        <th>
            @Html.ActionLink("Date Submitted", "BugIndex", new { sortOrder = ViewBag.currentOrder == "asc" ? "desc" : "asc", sortField = "date_submitted"})
            @if (ViewBag.currentOrder == "asc" && ViewBag.CurrentField == "date_submitted"){<img id="asc" src="@Url.Content("~/Images/ico_tablesortoffset_asc.gif")" alt = "Asc Arrow" />}
            @if (ViewBag.currentOrder == "desc" && ViewBag.CurrentField == "date_submitted"){<img id="desc" src="@Url.Content("~/Images/ico_tablesortoffset_desc.gif")" alt = "Desc Arrow" />}
        </th>
        <th>
            @Html.ActionLink("Submitted By", "BugIndex", new { sortOrder = ViewBag.currentOrder == "asc" ? "desc" : "asc", sortField = "submitted_by"})
            @if (ViewBag.currentOrder == "asc" && ViewBag.CurrentField == "submitted_by"){<img id="asc" src="@Url.Content("~/Images/ico_tablesortoffset_asc.gif")" alt = "Asc Arrow" />}
            @if (ViewBag.currentOrder == "desc" && ViewBag.CurrentField == "submitted_by"){<img id="desc" src="@Url.Content("~/Images/ico_tablesortoffset_desc.gif")" alt = "Desc Arrow" />}
        </th>
        <th>
            @Html.ActionLink("Description", "BugIndex", new { sortOrder = ViewBag.currentOrder == "asc" ? "desc" : "asc", sortField = "Description" })
            @if (ViewBag.currentOrder == "asc" && ViewBag.CurrentField == "Description"){<img id="asc" src="@Url.Content("~/Images/ico_tablesortoffset_asc.gif")" alt = "Asc Arrow" />}
            @if (ViewBag.currentOrder == "desc" && ViewBag.CurrentField == "Description"){<img id="desc" src="@Url.Content("~/Images/ico_tablesortoffset_desc.gif")" alt = "Desc Arrow" />}
        </th>
        <th>
            @Html.ActionLink("Priority", "BugIndex", new { sortOrder = ViewBag.currentOrder == "asc" ? "desc" : "asc", sortField = "Priority" })
            @if (ViewBag.currentOrder == "asc" && ViewBag.CurrentField == "Priority"){<img id="asc" src="@Url.Content("~/Images/ico_tablesortoffset_asc.gif")" alt = "Asc Arrow" />}
            @if (ViewBag.currentOrder == "desc" && ViewBag.CurrentField == "Priority"){<img id="desc" src="@Url.Content("~/Images/ico_tablesortoffset_desc.gif")" alt = "Desc Arrow" />}
        </th>
        <th>
            @Html.ActionLink("Estimated Completion Date", "BugIndex", new { sortOrder = ViewBag.currentOrder == "asc" ? "desc" : "asc", sortField = "estimated_completion_date" })
            @if (ViewBag.currentOrder == "asc" && ViewBag.CurrentField == "estimated_completion_date"){<img id="asc" src="@Url.Content("~/Images/ico_tablesortoffset_asc.gif")" alt = "Asc Arrow" />}
            @if (ViewBag.currentOrder == "desc" && ViewBag.CurrentField == "estimated_completion_date"){<img id="desc" src="@Url.Content("~/Images/ico_tablesortoffset_desc.gif")" alt = "Desc Arrow" />}
        </th>
        <th>
            @Html.ActionLink("Status", "BugIndex", new { sortOrder = ViewBag.currentOrder == "asc" ? "desc" : "asc", sortField = "status" })
            @if (ViewBag.currentOrder == "asc" && ViewBag.CurrentField == "status"){<img id="asc" src="@Url.Content("~/Images/ico_tablesortoffset_asc.gif")" alt = "Asc Arrow" />}
            @if (ViewBag.currentOrder == "desc" && ViewBag.CurrentField == "status"){<img id="desc" src="@Url.Content("~/Images/ico_tablesortoffset_desc.gif")" alt = "Desc Arrow" />}
        </th>
        <th>
            @Html.ActionLink("Developer Comments", "BugIndex", new { sortOrder = ViewBag.currentOrder == "asc" ? "desc" : "asc", sortField = "developer_comments" })
            @if (ViewBag.currentOrder == "asc" && ViewBag.CurrentField == "developer_comments"){<img id="asc" src="@Url.Content("~/Images/ico_tablesortoffset_asc.gif")" alt = "Asc Arrow" />}
            @if (ViewBag.currentOrder == "desc" && ViewBag.CurrentField == "developer_comments"){<img id="desc" src="@Url.Content("~/Images/ico_tablesortoffset_desc.gif")" alt = "Desc Arrow" />}
        </th>
        <th>
            @Html.ActionLink("Attachment", "BugIndex", new { sortOrder = ViewBag.currentOrder == "asc" ? "desc" : "asc", sortField = "attachment" })
            @if (ViewBag.currentOrder == "asc" && ViewBag.CurrentField == "attachment"){<img id="asc" src="@Url.Content("~/Images/ico_tablesortoffset_asc.gif")" alt = "Asc Arrow" />}
            @if (ViewBag.currentOrder == "desc" && ViewBag.CurrentField == "attachment"){<img id="desc" src="@Url.Content("~/Images/ico_tablesortoffset_desc.gif")" alt = "Desc Arrow" />}
        </th>

        <th></th>
    </tr>

@{
    var row_class = "odd";
}

@foreach (var item in Model)
{
    row_class = row_class == "odd"? "even" : "odd";    
    <tr class="@row_class">
        <td>
            @Html.DisplayFor(modelItem => item.date_submitted)
        </td>
        <td>
            @Html.DisplayFor(modelItem => item.submitted_by)
        </td>
        <td>
            @Html.DisplayFor(modelItem => item.description)
        </td>
        <td>
            @Html.DisplayFor(modelItem => item.priority)
        </td>
        <td>
            @Html.DisplayFor(modelItem => item.estimated_completion_date)
        </td>
        <td>
            @Html.DisplayFor(modelItem => item.status)
        </td>
        <td>
            @Html.DisplayFor(modelItem => item.developer_comments)
        </td>
        <td>
            @if (item.attachment != null){<img id="success" src="@Url.Content("~/Images/ico_confirmation_sml.gif")" alt = "attachment" />}
            @if (item.attachment == null) {<img id="failure" src="@Url.Content("~/Images/ico_error_sml.gif")" alt = "no attachment" />}
            <img src = "@Url.Content(string.Format("~/Uploads/{0}", item.attachment))" alt = "download" />                                                                                                                                 
        </td>
        <td>
            @Html.ActionLink("Edit", "EditBugs", new { id = item.bug_pk }) |
            @Html.ActionLink("Delete", "DeleteBugs", new { id = item.bug_pk })
        </td>
    </tr>
}

</table>

@model PagedList.IPagedList
@{
ViewBag.Title=“BugIndex”；
Layout=“~/Views/Shared/_Layout.cshtml”；
}
@使用页面列表；
@视图包。标题
@使用（Html.BeginForm（））
{
搜索错误索引：@Html.TextBox（“搜索字符串”）
}
@ActionLink（“报告Bug”、“报告Bug”、“支持”、null、new{@class=“button1”}）
页码@（Model.PageCount”，“”，新{page=Model.PageCount，sortOrder=ViewBag.CurrentSort，currentFilter=ViewBag.currentFilter，Versions=ViewBag.SelectedVersion}）
}
其他的
{
@：下一步>
@Html.Raw（“”）
@:>>
}
显示从@Model.TotalItemCount记录到@Model.LastItemOnPage的@Model.FirstItemOnPage记录
@ActionLink（“提交日期”，“BugIndex”，new{sortOrder=ViewBag.currentOrder==“asc”？“desc”：“asc”，sortField=“提交日期”}）
@如果（ViewBag.currentOrder==“asc”&&ViewBag.CurrentField==“提交日期”）{
@如果（ViewBag.currentOrder==“desc”&&ViewBag.CurrentField==“提交日期”）{}
@ActionLink（“提交人”，“BugIndex”，new{sortOrder=ViewBag.currentOrder==“asc”？“desc”：“asc”，sortField=“提交人”}）
@如果（ViewBag.currentOrder==“asc”&&ViewBag.CurrentField==“提交人”）{
@如果（ViewBag.currentOrder==“desc”&&ViewBag.CurrentField==“提交人”）{
@ActionLink（“Description”，“BugIndex”，new{sortOrder=ViewBag.currentOrder==“asc”？“desc”：“asc”，sortField=“Description”}）
@如果（ViewBag.currentOrder==“asc”&&ViewBag.CurrentField==“Description”）{}
@如果（ViewBag.currentOrder==“desc”&&ViewBag.CurrentField==“Description”）{}
@ActionLink（“Priority”，“BugIndex”，new{sortOrder=ViewBag.currentOrder==“asc”？“desc”：“asc”，sortField=“Priority”}）
@如果（ViewBag.currentOrder==“asc”&&ViewBag.CurrentField==“优先级”）{}
@如果（ViewBag.currentOrder==“desc”&&ViewBag.CurrentField==“Priority”）{}
@ActionLink（“预计完成日期”，“BugIndex”，new{sortOrder=ViewBag.currentOrder==“asc”？“desc”：“asc”，sortField=“预计完成日期”}）
@如果（ViewBag.currentOrder==“asc”&&ViewBag.CurrentField==“预计完工日期”）{
@如果（ViewBag.currentOrder==“desc”&&ViewBag.CurrentField==“预计完成日期”）{
@ActionLink（“Status”，“BugIndex”，new{sortOrder=ViewBag.currentOrder==“asc”？“desc”：“asc”，sortField=“Status”}）
@如果（ViewBag.currentOrder==“asc”&&ViewBag.CurrentField==“状态”）{}
@如果（ViewBag.currentOrder==“desc”&&ViewBag.CurrentField==“status”）{}
@ActionLink（“开发者评论”，“BugIndex”，new{sortOrder=ViewBag.currentOrder==“asc”？“desc”：“asc”，sortField=“开发者评论”}）
@如果（ViewBag.currentOrder==“asc”&&ViewBag.CurrentField==“开发者注释”）{}
@如果（ViewBag.currentOrder==“desc”&&ViewBag.CurrentField==“开发者注释”）{}
@ActionLink（“附件”，“BugIndex”，new{sortOrder=ViewBag.currentOrder==“asc”？“desc”：“asc”，sortField=“附件”}）
@如果（ViewBag.currentOrder==“asc”&&ViewBag.CurrentField==“附件”）{}
@如果（ViewBag.currentOrder==“desc”&&ViewBag.CurrentField==“附件”）{}
@{
var row_class=“奇数”；
}
@foreach（模型中的var项目）
{
行类别=行类别==“奇数”？“偶数”：“奇数”；
@DisplayFor（modelItem=>item.date\u提交）
@DisplayFor（modelItem=>item.submitted\u by）
@DisplayFor（modelItem=>item.description）
@DisplayFor（modelItem=>item.priority）
@DisplayFor（modelItem=>item.estimated\u completion\u date）
@DisplayFor（modelItem=>item.status）
@DisplayFor（modeleItem=>item.developer\u注释）
@如果（item.attachment！=null）{}
@如果（item.attachment==null）{}
@ActionLink（“Edit”，“editbug”，new{id=item.bug_pk}）|
@ActionLink（“Delete”，“deletebug”，new{id=item.bug_pk}）
}

应用程序数据中存储的文件将无法访问。为了在网页上显示它们，您必须将它们移动到不同的文件夹，如~/content或~/images

然后，您可以通过以下方式逃脱：

<img src="@Url.Content(string.Format("~/images/{0}", Model.RandomFileName))" />

---

我一直在干扰你的建议，你对App\u数据文件夹的看法绝对正确，因此我更新了代码以反映不同的文件夹，但我似乎无法查看该文件