从服务器端启动JavaScript调用 [英] Initiating JavaScript call from server side

问题描述

我正在阅读这个，大约一半是从中调用JavaScript函数的一种策略服务器端。工作几乎完美，但我想阻止原始页面重新加载。尝试使用< a4j：commandLink> 执行此操作，但随后弹出页面根本没有显示。关于如何实现这一点的任何想法？

I was reading this and about halfway down is a tactic to call a JavaScript function from the server side. Works almost perfectly but I would like to prevent the original page from reloading. Tried to do this with an <a4j:commandLink> but then the popup page wasn't appearing at all. Any ideas on how to achieve this?

推荐答案

在你发布正在运行的代码之前，你可能得不到具体答案为什么< a4j：commandLink /> 失败

Until you post the code you're running, you might not get a specific answer why the <a4j:commandLink/> is failing

然而，没有任何额外的库，执行客户端代码的一种黑客方法是使用 PartialViewContext 。该机制类似于教程推荐的机制，只是您不需要任何实用程序来实现相同的效果。

Without any additional libraries however, a hacky way to execute client-side code is to use the PartialViewContext. The mechanism is similar to what that tutorial recommends, only that you don't need any utility to achieve the same effect.

String javaScriptText = "window.open('"+actionUrl+"', 'popupWindow', 'dependent=yes, menubar=no, toolbar=no');";
FacesContext cxt = FacesContext.getInstance();
PartialViewContext partialCtxt = ctxt.getPartialViewContext();
partialCtxt.getExecuteIds().add(javaScriptText); 

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