我的页面中有一个类似的按钮。点击按钮,我试图在Facebook中发送以下标签信息......
<meta property="og:title" content="Title" />
<meta property="og:description" content="Description" />
<meta property="og:url" content="url info" />
<meta property="og:image" content="image url" />
以下是我喜欢的按钮框架
<iframe frameborder="0" scrolling="no" allowtransparency="true"
style="border: none; overflow: hidden; width: 260px; height: 35px;"
src="http://www.facebook.com/plugins/like.php?
href=http://localhost:49334/WebForm1.aspx&send=false&
layout=button_count&width=100&show_faces=false&
action=like&colorscheme=light&font=arial&height=35">
</iframe>
以下是第一种动态处理元标记的方法。
var fbTitleTag = new MetaTag
{
AgentPageURL = "/",
MetaTagName = "og:title",
UserSiteName = CurrentAgent.UserSiteName,
MetaTagContent = Request.Cookies.Get("MasterTitle").Value
};
var fbDesc = new MetaTag
{
AgentPageURL = "/",
MetaTagName = "og:description",
UserSiteName = CurrentAgent.UserSiteName,
MetaTagContent = Request.Cookies.Get("MasterDescription").Value
};
var fbUrl = new MetaTag
{
AgentPageURL = "/",
MetaTagName = "og:url",
UserSiteName = CurrentAgent.UserSiteName,
MetaTagContent = Request.Cookies.Get("MasterURL").Value
};
var fbImage = new MetaTag
{
AgentPageURL = "/",
MetaTagName = "og:image",
UserSiteName = CurrentAgent.UserSiteName,
MetaTagContent = Request.Cookies.Get("MasterImage").Value
};
var tags = new MetaTagCollection { fbTitleTag, fbDesc, fbUrl, fbImage };
Literal ltMetaTags = null;
ltMetaTags = (Literal)this.Master.FindControl("ltMetaTags");
MetaTags(tags, "wsws", "/", ltMetaTags, true);
public static void MetaTags(MetaTagCollection MetaTags, string name, string strRawURL, Literal ltlMetaHolders, bool isProp)
{
// ltlMetaHolders.Text = "";
foreach (AgentMetaTag oAgentMetaTag in agentMetaTags)
{
if (string.Compare(strRawURL, oAgentMetaTag.AgentPageURL, true) == 0)
{
if (oAgentMetaTag.MetaTagName.ToLower().Trim() != "footer" && oAgentMetaTag.MetaTagName.ToLower().Trim() != "title")
{
if (oAgentMetaTag.MetaTagName.ToLower().Trim() == "fbtitle")
oAgentMetaTag.MetaTagName = "title";
RenderMetaTagByContentName(ltlMetaHolders, oAgentMetaTag.MetaTagName, oAgentMetaTag.MetaTagContent, isProp);
}
}
}
}
public static void RenderMetaTagByContentName(Literal ltlMetaHolder, string contentName, string content, bool isProp)
{
var metaTagFromat = isProp ? "<meta property=\"{0}\" content=\"{1}\" />" : "<meta name=\"{0}\" content=\"{1}\" /> ";
ltlMetaHolder.Text += string.Format(metaTagFromat, contentName, content);
}
以下是动态处理元标记的第二种方法。
HtmlMeta tag = new HtmlMeta();
tag.Attributes.Add("property", "og:title");
tag.Content = "Title";
Page.Header.Controls.Add(tag);
HtmlMeta tag1 = new HtmlMeta();
tag1.Attributes.Add("property", "og:description");
tag1.Content = "Desc";
Page.Header.Controls.Add(tag1);
HtmlMeta tagurl = new HtmlMeta();
tagurl.Attributes.Add("property", "og:url");
tagurl.Content = "URL info";
Page.Header.Controls.Add(tagurl);
HtmlMeta tagimg = new HtmlMeta();
tagimg.Attributes.Add("property", "og:img");
tagimg.Content = "Image URL";
Page.Header.Controls.Add(tagimg);
最后,它会将元标记呈现如下..
<meta property="og:title" content="Title" />
<meta property="og:description" content="Description" />
<meta property="og:url" content="url info" />
<meta property="og:image" content="image url" />
现在,当我点击Like button
时,它只会发送网址。而不是发送Description/Image/Title
。
我正在使用链接“http://developers.facebook.com/tools/debug”。它说Description/Image/Title
丢失了。
任何想法?
答案 0 :(得分:2)
您不会将元数据发送到Facebook,Facebook会在加载页面时从页面的HTML中检索元数据。尝试使用以下工具查看您的网址:
http://developers.facebook.com/tools/debug/og/echo?q=<your URL here>
它会显示Facebook看到的内容(它是您现在使用的调试工具底部的“Scraped URL”链接。)
如果它不包含元数据标签,则Facebook不会看到它们,也不会将元数据添加到其Open Graph对象中。如果是这种情况,那么您可能无法正确地将元数据添加到HTML中。
答案 1 :(得分:1)
第二种方法看起来是正确的。问题是,你在哪里放置代码?它应该在Page_Load上调用。
单击“赞”按钮不会发送og:xxxx信息。您的页面应该从一开始就已经有了这些og:xxxx元标记。
答案 2 :(得分:1)
你使用MVC ASP.NET吗?
您可以尝试将Layout.cshtml中的元标记设置为
<meta property="og:type" content="website">
<meta property="og:site_name" content="Site name">
<meta property="og:title" content="@ViewBag.OGTitle" />
<meta property="og:description" content="@ViewBag.OGDesc" />
<meta property="og:url" content="@ViewBag.OGUrl">
<meta property="og:image" content="@ViewBag.OGImage" />
然后在单独的页面MyPage.cshtml中设置标签值
@model Books.Web.Models.ItemSource
@{
ViewBag.OGTitle = Model.Item.Title;
ViewBag.OGDesc = Model.Item.Description;
ViewBag.OGUrl = Request.Url.AbsoluteUri;
ViewBag.OGImage = Request.Url.Scheme + "://" + Request.Url.Host + Url.Action("ItemCover", "Image", new { id = Model.Item.Id, height = 350 });
Layout = "~/Views/Shared/Layout.cshtml";
}
<div>Page content here</div>