Html 如何在JSP中的两个变量之间插入空格？
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How to insert a space between two variables in JSP?
提问by zw324
I have one line of html in a form on a JSP page like this:
我在 JSP 页面上的表单中有一行 html，如下所示：
<c:forEach var="entry" items="${set}">
<input type="checkbox" name="thing" value="${entry.key} ${entry.value}">
</c:forEach>
However, the space between the key and the value ${entry.key} ${entry.value}is lost when the form is submitted. I've tried using a \before the , in that case both the \and the are still there when submitting.
但是，${entry.key} ${entry.value}提交表单时，键和值之间的空格会丢失。我试过在\之前使用 a ，在这种情况下，提交时the\和 the仍然存在。
It seems that Java EL does not preserve isolated spaces, is that right? If so, is there a valid workaround?
Java EL 似乎不保留隔离空间，对吗？如果是这样，是否有有效的解决方法？
EDIT: This is so silly of me, many thanks to Cthulhu. But I still don't understand the behavior after adding a \. Why would that cause the space to show?
编辑：这对我来说太愚蠢了，非常感谢克苏鲁。但是我仍然不明白添加\. 为什么这会导致空间显示？
回答by Anirudh Ramanathan
回答by wessel
${entry.key}${' '}${entry.value}
was my way to fix this. Seems a little less verbose than the
是我解决这个问题的方法。似乎没有那么冗长
<c:out value="${bean.foo} ${bean.bar} ${bean.waa}" />
from the other thread.
从另一个线程。
