Facebook社交插件和JSF [英] Facebook social plugins and JSF
问题描述
我必须将Facebook社交插件整合到JSF应用程序中。这建议我将fbml命名空间添加到在回复中呈现的xhtml文件中。
I have to integrate the Facebook social plugins into a JSF application. This recommends that I add the fbml namespace to the xhtml file that it's rendered in the response.
我在我的XHTML文件中：
I have in my XHTML file:
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml"
xmlns:ui="http://java.sun.com/jsf/facelets"
...
xmlns:fb="http://www.facebook.com/2008/fbml"
xmlns:og="http://ogp.me/ns#">
但是， fb 和 og 命名空间将不会在渲染的源中显示，只能显示XHTML命名空间。如何将这些命名空间写入响应？
But the fb and og namespace won't be shown in the rendered source, only the XHTML namespace. How can I get these namespaces written to the response?
有这个问题： https://stackoverflow.com/questions/5199176/include-facebook-social-plugins-in-a-jsf2-page ，但它没有已经回答了。
There is this issue: https://stackoverflow.com/questions/5199176/include-facebook-social-plugins-in-a-jsf2-page but it has not been answered yet.
我唯一的想法是制作一个iframe，并包含一个简单的XHTML文件（不是一个Facelet，只是纯XHTML），但这似乎要肮脏。
The only idea I've got is to make an iframe and include a simple XHTML file (not a Facelet, just pure XHTML), but this seems to be dirty.
我希望有人有更好的解决方案。
I hope someone has a better solution to that.
其他信息：我正在使用facelets和seam 2.2。
Additional information: I'm using facelets and seam 2.2.
我假设 ResponseWriter.startDocument（）打印Doctype和< html> 元素，是否正确？或者它只是另一个 UIComponent ，呈现< html> 元素？如果我可以实现一个自定义的 ResponseWriter 并覆盖 startDocument（）并将我的自定义作者设置为默认值
I assume that ResponseWriter.startDocument() prints the Doctype and <html> element, is that correct? Or ist it just another UIComponent that renders the <html> element? It would be nice if I just could implement a custom ResponseWriter and override startDocument() and set my custom writer as default.
这导致我有两个问题：
- 我应该覆盖哪个类所以我不必实现抽象的每个方法
ResponseWriter？ - 我如何告诉我的应用程序使用我的自定义
ResponseWriter？
- Which class should I override so I don't have to implement every method of the abstract
ResponseWriter? - How would I tell my application to use my custom
ResponseWriter?
或者实现一个自定义组件，呈现< html> 标记工作？我在问这个问题，因为看起来似乎是出现< html> 标签，似乎没有办法改变这个，所以我想到了覆盖 ResponseWriter 。
Or does implementing a custom component that renders the <html> tag the job? I'm asking this because facelets seems to render the <html> Tag by itself and there seems to be no way to change this, that's why I came up with overriding the ResponseWriter.
推荐答案
我发现我只需要写一个自定义组件：
I found out that I just had to write a custom component:
public class CvHTML extends UIOutput {
@Override
public void encodeBegin(final FacesContext context) throws IOException {
final ResponseWriter writer = context.getResponseWriter();
writer.startDocument();
writer.startElement("HTML", null);
writer.writeAttribute("xmlns", "http://www.w3.org/1999/xhtml", null);
writer.writeAttribute("xmlns:fb", "http://www.facebook.com/2008/fbml", null);
writer.writeAttribute("xmlns:og", "http://ogp.me/ns#", null);
}
@Override
public void encodeEnd(final FacesContext context) throws IOException {
final ResponseWriter writer = context.getResponseWriter();
writer.endElement("HTML");
writer.endDocument();
}
}
现在在主模板中调用：
<cv:html xmlns="http://www.w3.org/1999/xhtml" lang="en"
xmlns:s="http://jboss.com/products/seam/taglib"
....
xmlns:cv="http://your.name.space/foo">
这篇关于Facebook社交插件和JSF的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！
