在ASP.NET MVC中显示不可读的字符 [英] Unreadable characters displaying in ASP.NET MVC

问题描述

我正在尝试建立店铺.

StoreViewModel
公共类StoreViewModel

StoreViewModel
public class StoreViewModel

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

Index.aspx

Index.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中的代码:

GetStoreFrontItems_Result is generated with function import. Here is the code from Index in StoreController:

[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.

Here are some screenshots, one showing the error and the other showing what gets displayed.

推荐答案

就错误而言，代码所显示的内容是不可能回答发生错误的原因(尽管错误消息似乎不仅仅在于自我.说明性的).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.这是博客帖子，其中很好地解释了原因以及解决方法.

As far as the error is concerned from what you have shown as code it is impossible to answer why does it happen (although the error message seems more than pretty self explanatory). As far as the garbage characters are concerned they are caused by the Compression filter you are using on your action. Here's a blog post which explains perfectly fine the reason and how to fix it.

建议的解决方案是将以下内容放入Global.asax中，以消除ASP.NET剥离在某些情况下您的CompressionFilter可能已添加的自定义压缩HTTP标头的影响:

The proposed solution is to put the following in your Global.asax to cancel the effect of ASP.NET stripping the custom compression HTTP headers that your CompressionFilter might have added in case of an exception:

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");
}

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