HtmlUnit 2.9 jar execute JavaScript

本文关键字：execute JavaScript jar HtmlUnit 更新时间：2023-09-26

我正在尝试以下代码：

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的页面源代码中定义的特定函数。URL 是我在此代码中定义的字段。

这是一个工作示例，我试图使其尽可能简单：

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);
    }
}