ASP.NET MVC 中显示的不可读字符

Question

我正在尝试建立一个店面。

StoreViewModel
公共类 StoreViewModel

{
    public IEnumerable<GetStoreFrontItems_Result> StoreFrontItems { get; set; }
}

索引.aspx

<%@ Page Title="" Language="C#" MasterPageFile="~/Views/Shared/Site.Master" Inherits="System.Web.Mvc.ViewPage<StoreViewModel>" %>

<asp:Content ID="Content1" ContentPlaceHolderID="TitleContent" runat="server">
    ..:: Gods Creation Taxidermy :: Store ::..
</asp:Content>

<asp:Content ID="Content2" ContentPlaceHolderID="MainContent" runat="server">

    <div class="maintext">
        <h2 class="sectionHeader2">:: Gods Creation Taxidermy : Store Items ::</h2>
        <br />
       At times I end up with items and mounts that the owner never came to pick up, so I put them up for sale to help generate 
       some revenue for Gods Creation Taxidermy. 

       <strong>NOTE:</strong> Now before you freak out and think I'm going to sell your mount remember the items for sale are several years old
       and the owner simply didnt make the final payment or for some reason left it here.

        <% Html.DataList(Model.StoreFrontItems).Columns(7).Item(item =>
        {
            item.Template(storeItems =>
            {%>
                <div style="margin-right:45px; line-height:150%;">
                    <span><%: Html.ActionLink(storeItems.CategoryName, "List", new { @animal = storeItems.CategoryName });%></span>                    
                </div>  
         <%--       <div style="margin-right:45px; line-height:150%;">
                    <span><% = galleryImage.ItemName%></span>
                </div>
                <div style="margin-right:45px; line-height:150%;">
                    <span><% = galleryImage.ItemPrice%></span>
                </div>--%>
                    <%});
        }).Render(); %>

    </div>
</asp:Content>

<asp:Content ID="Content3" ContentPlaceHolderID="MetaTagsContent" runat="server">
</asp:Content>

<asp:Content ID="Content4" ContentPlaceHolderID="LeftColumnContent" runat="server">
</asp:Content>

GetStoreFrontItems_Result 是通过函数导入生成的。这是 StoreController 中 Index 的代码：

[CanonicalUrlAttribute("Store")]
[CompressionFilter(Order = 1)]
[CacheFilter(CacheDuration = 120, Order = 2)]
public virtual ActionResult Index()
{
    GodsCreationTaxidermyEntities context = new GodsCreationTaxidermyEntities();
    var viewModel = new StoreIndexViewModel() { StoreFrontItems = context.GetStoreFrontItems() };
    return View(viewModel);

这里有一些屏幕截图，一个显示错误，另一个显示显示的内容。

Answer 1

就您显示为代码的错误而言，无法回答为什么会发生（尽管错误消息似乎不仅仅是自我解释）。就垃圾字符而言，它们是由您在操作中使用的Compression 过滤器引起的。这是blog post，它完美地解释了原因以及如何解决它。

建议的解决方案是在您的 Global.asax 中添加以下内容，以取消 ASP.NET 剥离您的 CompressionFilter 可能在出现异常时添加的自定义压缩 HTTP 标头的效果：

protected void Application_PreSendRequestHeaders()
{
    // ensure that if GZip/Deflate Encoding is applied that headers are set
    // also works when error occurs if filters are still active
    HttpResponse response = HttpContext.Current.Response;
    if (response.Filter is GZipStream && response.Headers["Content-encoding"] != "gzip")
        response.AppendHeader("Content-encoding", "gzip");
    else if (response.Filter is DeflateStream && response.Headers["Content-encoding"] != "deflate")
        response.AppendHeader("Content-encoding", "deflate");
}