Question

我想做以下事情

使用Selenium打开网址

使用ScriptEngine，想要执行一个Javascript函数，该函数在www.google.co.in上提供所有锚点标记：

package public;

import javax.script.Invocable;
import javax.script.ScriptEngine;
import javax.script.ScriptEngineManager;

import org.openqa.selenium.WebDriver;
import org.openqa.selenium.firefox.FirefoxDriver;

public class InvokeScriptFunction
{
    public static void main(String[] args) throws Exception {
        ScriptEngineManager manager = new ScriptEngineManager();
        ScriptEngine engine = manager.getEngineByName("JavaScript");
        WebDriver driver=new FirefoxDriver();
        driver.get("http://www.google.co.in");

        // JavaScript code in a String
             String script = "function hello() { print(document.anchors); }";

        // evaluate script
        engine.eval(script);

        // javax.script.Invocable is an optional interface.
        // Check whether your script engine implements or not!
        // Note that the JavaScript engine implements Invocable interface.
        Invocable inv = (Invocable) engine;

        // invoke the global function named "hello"
       inv.invokeFunction("hello" );
    }
}

我想通过这个程序访问DOM元素。如果我只是打印一个字符串然后它的工作正常，但给出以下异常：

Exception in thread "main" javax.script.ScriptException: sun.org.mozilla.javascript.EcmaError: ReferenceError: "document" is not defined. (<Unknown source>#1) in <Unknown source> at line number 1
    at com.sun.script.javascript.RhinoScriptEngine.invoke(RhinoScriptEngine.java:300)
    at com.sun.script.javascript.RhinoScriptEngine.invokeFunction(RhinoScriptEngine.java:258)
    at publicc.InvokeScriptFunction.main(InvokeScriptFunction.java:32)
Caused by: sun.org.mozilla.javascript.EcmaError: ReferenceError: "document" is not defined. (<Unknown source>#1)
    at sun.org.mozilla.javascript.ScriptRuntime.constructError(ScriptRuntime.java:3785)
    at sun.org.mozilla.javascript.ScriptRuntime.constructError(ScriptRuntime.java:3763)
    at sun.org.mozilla.javascript.ScriptRuntime.notFoundError(ScriptRuntime.java:3848)
    at sun.org.mozilla.javascript.ScriptRuntime.name(ScriptRuntime.java:1781)
    at sun.org.mozilla.javascript.Interpreter.interpretLoop(Interpreter.java:1780)
    at sun.org.mozilla.javascript.Interpreter.interpret(Interpreter.java:854)
    at sun.org.mozilla.javascript.InterpretedFunction.call(InterpretedFunction.java:164)
    at sun.org.mozilla.javascript.ContextFactory.doTopCall(ContextFactory.java:426)
    at com.sun.script.javascript.RhinoScriptEngine$1.superDoTopCall(RhinoScriptEngine.java:116)
    at com.sun.script.javascript.RhinoScriptEngine$1.doTopCall(RhinoScriptEngine.java:109)
    at sun.org.mozilla.javascript.ScriptRuntime.doTopCall(ScriptRuntime.java:3178)
    at sun.org.mozilla.javascript.InterpretedFunction.call(InterpretedFunction.java:162)
    at com.sun.script.javascript.RhinoScriptEngine.invoke(RhinoScriptEngine.java:294)
    ... 2 more

线程“main”中的异常javax.script.ScriptException：sun.org.mozilla.javascript.EcmaError：ReferenceError：“document”未定义

0 个答案: