如何在网页中调用嵌入式java函数

这是我想在网页中使用的功能，并希望在脚本节点中将其作为其他javascript函数调用。但是，请你指导我如何实现它。

Here is the function that i want to use in a web page and want to call it in script node as other javascript functions. But could you please guide me on how to achieve it.

public static String getClipboard() {

    Transferable t = Toolkit.getDefaultToolkit().getSystemClipboard().getContents(null);

    try {
        if (t != null && t.isDataFlavorSupported(DataFlavor.stringFlavor)) {
            String text = (String)t.getTransferData(DataFlavor.stringFlavor);
            return text;
        }
    } catch (UnsupportedFlavorException e) {
    } catch (IOException e) {
    }
    return null;
}

我对这个概念完全陌生..如果你能回答这个问题，这将是非常有用的..
谢谢

I am completely new to this concept.. If you can answer this question, that will be very helpful.. Thanks