HtmlUnit 2.9 jar执行JavaScript

我正在尝试这段代码：

import com.gargoylesoftware.htmlunit.BrowserVersion; import com.gargoylesoftware.htmlunit.JavaScriptPage; import com.gargoylesoftware.htmlunit.ScriptResult; import com.gargoylesoftware.htmlunit.WebClient; import com.gargoylesoftware.htmlunit.WebRequest; import com.gargoylesoftware.htmlunit.WebResponse; import com.gargoylesoftware.htmlunit.WebWindow; import com.gargoylesoftware.htmlunit.html.HtmlPage; import com.gargoylesoftware.htmlunit.javascript.JavaScriptEngine; import com.gargoylesoftware.htmlunit.javascript.host.html.HTMLScriptElement; import java.net.URL; import java.util.List; public class Example { public static void main(String[] args) throws Exception { WebClient webClient = new WebClient(BrowserVersion.INTERNET_EXPLORER_6); URL url=new URL("http://www.google.com"); WebRequest request= new WebRequest(url); WebResponse response=new WebResponse(null, request, 6000); webClient.setJavaScriptEnabled(true); webClient.setThrowExceptionOnScriptError(false); webClient.setCssEnabled(false); webClient.setRedirectEnabled(true); JavaScriptEngine engine = new JavaScriptEngine(webClient); webClient.setJavaScriptEngine(engine); HtmlPage firstPage = null; ScriptResult result = null; JavaScriptPage jsp=new JavaScriptPage(response, null); try { firstPage = webClient.getPage(request); } catch (Exception e) { e.printStackTrace(); } String JavaScriptCode = "1+1"; try { result = firstPage.executeJavaScript(JavaScriptCode); } catch (Exception e) { e.printStackTrace(); } Object javaScriptResult = result.getJavaScriptResult(); System.out.println(javaScriptResult); } } 

它适用于简单的JavaScript代码，例如"1+1" 。 我想执行在URL的页面源中定义的特定函数。 URL是我在此代码中定义的字段。

Answer 1

这是一个工作示例，我试图尽可能简单：

 import com.gargoylesoftware.htmlunit.BrowserVersion; import com.gargoylesoftware.htmlunit.WebClient; import com.gargoylesoftware.htmlunit.html.HtmlPage; public class Test { public static void main(String[] args) throws Exception { WebClient webClient = new WebClient(BrowserVersion.FIREFOX_3_6); HtmlPage page = webClient.getPage("http://www.iana.org/"); String javaScriptCode = "inArray([1,2],3)"; Object result = page.executeJavaScript(javaScriptCode).getJavaScriptResult(); System.out.println(result); } }