我怎样才能得到一个网站的图标？ [英] How can I get a web site's favicon?

问题描述

就这么简单的问题：我已经创建一个小的应用程序，基本上只是一个收藏夹，它位于我的系统盘，这样我可以从同一个地方打开常用的网站/文件夹/文件。从获取我的系统默认的图标已知文件类型是不是非常复杂，但我不知道如何从一个网站的图标。 （所以一直比如在地址栏中grey->橙色堆栈图标）

有谁知道我可能会去吗？

解决方案

您将要解决这几个方面：

1. 查找的favicon.ico 在域的根目录

   www.domain.com/favicon.ico

2. 查找一个＆LT;链接＆GT; 与相对=快捷方式图标属性标记

   ＆LT;链接REL =快捷方式图标的href =/的favicon.ico/＆GT;

3. 查找一个＆LT;链接＆GT; 与相对=图标属性<标签/ P>

   ＆LT;链接相对=图标的href =/ favicon.png/＆GT;

后两者通常会产生更高质量的图像。

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只是为了覆盖所有的基地，也有具体的设备图标可能会产生更高质量的图像，因为这些设备通常有设备不是一个浏览器就需要在更大的图标文件：

＆LT;链接相对=苹果触摸图标的href =图像/ touch.png/＆GT;

＆LT;链接相对=苹果触摸icon- precomposed的href =图像/ touch.png/＆GT;

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和下载图标，而无需关心的图标，你可以使用什么工具如 http://www.google.com/ S2 /网页图标将尽一切繁重的工作：

  VAR的客户=新System.Net.WebClient（）;

client.DownloadFile（
    @http://www.google.com/s2/favicons?domain_url=stackoverflow.com
    stackoverflow.com.ico）;
 

希望帮助！

Simple enough question: I've create a small app that is basically just a favourites that sits in my system tray so that I can open often-used sites/folders/files from the same place. Getting the default icons from my system for known file types isn't terribly complicated, but I don't know how to get the favicon from a website. (SO has the grey->orange stack icon in the address bar for instance)

Does anyone know how I might go about that?

解决方案

You'll want to tackle this a few ways:

1. Look for the favicon.ico at the root of the domain

   www.domain.com/favicon.ico

2. Look for a <link> tag with the rel="shortcut icon" attribute

   <link rel="shortcut icon" href="/favicon.ico" />

3. Look for a <link> tag with the rel="icon" attribute

   <link rel="icon" href="/favicon.png" />

The latter two will usually yield a higher quality image.

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Just to cover all of the bases, there are device specific icon files that might yield higher quality images since these devices usually have larger icons on the device than a browser would need:

<link rel="apple-touch-icon" href="images/touch.png" />

<link rel="apple-touch-icon-precomposed" href="images/touch.png" />

---

And to download the icon without caring what the icon is you can use a utility like http://www.google.com/s2/favicons which will do all of the heavy lifting:

var client = new System.Net.WebClient();

client.DownloadFile(
    @"http://www.google.com/s2/favicons?domain_url=stackoverflow.com",
    "stackoverflow.com.ico");

Hope that helps!

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