单击使用htmlunit的javascript锚点似乎不起作用 [英] Clicking on javascript anchor with htmlunit does not seem to work

问题描述

我正在使用htmlunit自动浏览网站。
以下是问题：

I am using htmlunit to automatically go through a website. Here is the problem:

我想点击锚点以显示给定表格的新页面。

I want to click on an anchor in order to display a new page of a given table.

以下是锚点：

<a href="javascript:__doPostBack('GridView1','Page$7')">7</a>

这是我的代码：

final HtmlAnchor a = page2.getAnchorByText("7");
HtmlPage page3 = a.click();
System.out.println(page2.getWebResponse().getContentAsString())
System.out.println(page3.getWebResponse().getContentAsString());

我没有任何错误消息。当我比较我的打印时，它们是相同的，但它们不应该是，因为我只是点击一个锚点。首先打印输出应该显示表的某个页面，第二个打印输出另一个页面。

I do not have any error message. When I compare my print out, they are identical, and yet they shouldn't be, as I just clicked on an anchor. First print out should display a certain page of the table, a the second print out another one.

stackoverflow post 努力点击htmlunit中的链接会产生一个非常类似的问题，但他的解决方案（将浏览器版本设置为webclient）确实存在问题在我的情况下似乎不起作用。

The stackoverflow post struggling to click on link within htmlunit renders a very similar problem, however his solution (setting the browser version to the webclient) does not appear to work in my case.

推荐答案

也许你需要等待javascript先执行并加载。我建议使用以下命令：

Maybe you need to wait for the javascript to excute and load first. I suggest to use the following command:

webClient.waitForBackgroundJavaScript(1000);

甚至：

JavaScriptJobManager manager = page.getEnclosingWindow().getJobManager();
while (manager.getJobCount() > 0) {
    Thread.sleep(100);
}

还有另一种选择：

webClient.setAjaxController(new NicelyResynchronizingAjaxController());
webClient.setAjaxController(new AjaxController(){
    @Override
    public boolean processSynchron(HtmlPage page, WebRequest request, boolean async)
    {
        return true;
    }
});

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