问题
I found that the backing bean value displayed on the JSF page will collapse the white-space automatically .How can I make the value displayed do not collapse the white-space??
For example , I have a MBean which has a String variable test and assign the value
"test test", when I render it using
<h1>${MBean.test}</h1> , it just give out test test which all the white-spaces in the middle collapse to a white-space only.
This behavior also happens if I display the ArrayList from the MBean in the table format using the <rich:dataTable> , all the white-spaces will be collapsed too.
Updated: I still think that it is specific to the JSF , because when I use
<h:inputText value="#{MBean.test}"/> , the rendered input text box will collapse all the white-spaces.How can I preserve all the white-spaces in this case??
回答1:
This is not specific to JSF. This is specific to HTML
You can fix it by either putting it in a HTML <pre> element:
<h1><pre>#{bean.text}</pre></h1>
Or by applying CSS white-space: pre on the HTML element:
h1 {
white-space: pre;
}
(as you see, it also occurs on your question here on Stackoverflow as well, since it also doesn't preserve whitespace by white-space: pre)
回答2:
Sun's JavaServer Faces implementation (1.2_07-b03-FCS) has the same issue on Webshpere Application Server 7.0.0.21 for the CSS white-space: pre
来源：https://stackoverflow.com/questions/4676166/do-not-collapse-whitespace-when-displaying-the-value-of-the-backing-bean-in-the