当< ui：repeat>适用于X但是< c：forEach>为Y工作 [英] When <ui:repeat> works for X but <c:forEach> works for Y

问题描述

我在我的jsf应用中使用< c：foreach> 来迭代人员列表。我不使用< ui：repeat> ，因为每个人都有自己的标签（primefaces）。 JSF英雄'BalusC'已经帮助我完成了这个链接。现在我尝试保存（回发）数据。这不适用于< c：forEach> ，从不调用Person对象的approriate setter。使用< ui：repeat> 可行。显然我没有理解这两个标签之间的区别，所以我会赞美一些启示。

I use <c:foreach> in my jsf app to iterate over a list of people. I don't use <ui:repeat> because every person has its own tab (primefaces). JSF hero 'BalusC' already helped my out on this one link. Now I tried to save (postback) the data. This doesn't work with <c:forEach>, the approriate setter of the Person object gets never called. With <ui:repeat> it works. Obviously I haven't grasped the difference between the two tags so I would appriciate some enlightenment.

谢谢

Marcel

推荐答案

< c：forEach> 不构建JSF树服务器上的节点。您可以直接在html中看到这一点，输入不具有通常的长且不同 id =j_12：customerTabPanel：j_34：customerName 。

<c:forEach> does not build JSF tree nodes on the server. You can see this directly in the html, the inputs do not have the usual long and distinct id="j_12:customerTabPanel:j_34:customerName".

请阅读：

http://www.ninthavenue.com.au/blog/c:foreach-vs-ui:repeat-in- facelets

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