获取JSObject或JSContext来运行applet

问题描述

如何让JSObject或JSContext从Java运行applet？

How to get a JSObject or JSContext to run an applet from Java?

我正在尝试自动化某些程序，其中包含一些链接在网页中点击然后通过一个applet，所以我做的是通过Java发送一些HTTPRequest，直到我得到一个带有标签的HTML，通过JSoup，我提取所有的参数和代码库，等等。因为我想运行applet ，我使用ClassLoader加载applet类，我设置了一个自定义存根，可以提供我之前提取的参数。

I'm trying to automate some procedure that consists in some link clicking in a web and then going through an applet, so what I do is to send some HTTPRequests through Java until I get a HTML with the tag from which, through JSoup, I extract all the parameters and codebase, etc. As I want to run the applet as well, I load the applet class with a ClassLoader, I set a custom stub that can give the parameters that I extracted previously.

问题是这个applet有一些javascript交互使用浏览器，所以在某些时候它会执行JSObject.getWindow（applet）来获取文档并进行js调用，这里就是我被困住的地方。我知道我必须能够提供一个应该实现JSContext的AppletContext，并且能够为这个JSObject提供它是浏览器提供它的窗口。但有可能嘲笑这样的事情吗？

The thing is that this applet has some javascript interaction with the browser, so at some point it does a JSObject.getWindow(applet) to get the document and make the js calls and here is where I'm stuck. I understand that I have to be able to provide an AppletContext which should implement a JSContext and be able to provide this JSObject that it's the window as the browser would provide it. But is it possible to mock such a thing?

推荐答案

有一个偷偷摸摸的伎俩，首先创建一个接口扩展 AppletContext 和 JSContext

There is a sneaky trick, first create an interface that extends AppletContext and JSContext

private interface JSAwareAppletContext extends AppletContext, JSContext {
}

然后以某种方式模拟你有一个实例

Then mock that somehow so you have an instance

final JSAwareAppletContext myAppletContext = //mock

现在你可以在 JSAwareAppletContext 上模拟实时连接内容并返回如果来自你的 AppletStub 。

Now you can mock the live connect stuff on the JSAwareAppletContext and return if from your AppletStub.

例如Mockito：

final JSAwareAppletContext appletContext = mock(JSAwareAppletContext.class);
final JSObject jsObject = mock(JSObject.class);
when(appletContext.getJSObject()).thenReturn(jsObject);
final AppletStub appletStub = mock(AppletStub.class);
when(appletStub.getAppletContext()).thenReturn(appletContext);

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