java - 在 JFrame 或 JPanel 中加载 javascript

Question

我想将下面的 javascript 代码加载到 JPanel 或 JFrame。是否可以？

<script language="javascript" type="text/javascript" charset="utf-8">
//javascript code
</script>

Answer 1

可以使用第三方库:如HtmlUnit

It has fairly good JavaScript support (which is constantly improving) and is able to work even with quite complex AJAX libraries, simulating either Firefox or Internet Explorer depending on the configuration you want to use.

示例:

import com.gargoylesoftware.htmlunit.BrowserVersion;
import com.gargoylesoftware.htmlunit.WebClient;
import com.gargoylesoftware.htmlunit.html.HtmlPage;

public class JavaScriptProgram
{
    private WebClient webClient;
    private HtmlPage currentPage;

    public JavaScriptProgram()
    {
        webClient = new WebClient(BrowserVersion.INTERNET_EXPLORER_8);
        webClient.setThrowExceptionOnScriptError(false);
        webClient.setJavaScriptEnabled(true);
    }

    public void visitPage(String url)
    {
        try
        {
            currentPage = (HtmlPage) webClient.getPage(url);
        }
        catch(Exception e)
        {
            // Cannot get the page
        }
    }

    public void executeJavaScript(String code)
    {
        currentPage.executeJavaScript(code);
    }

    public static void main(String[] args)
    {
        JavaScriptProgram p = new JavaScriptProgram();
        p.visitPage("http://www.stackoverflow.com");
        p.executeJavaScript("document.write('Hello World!');");
    }
}