HtmlUnit属性未定义的脚本错误

我正在使用Java HtmlUnit软件包提交表单.我可以获取页面并提交表单,但是在一页上却出现ScriptException错误.消息为“无法将未定义的属性“禁用”设置为“ 0””

我认为这可能是由javascript方法引起的,该方法试图设置一个尚未在表单中声明的变量,但我不确定.

tempForm = MyPage.getFormByName("menu_form");
tempForm.getInputByName("userId").setValueAttribute("myusername");
HtmlPage editSubscriberPage = (HtmlPage)
tempForm.getInputByName("submit_button").click();



EcmaError: lineNumber=[824] column=[0] lineSource=[null] name=[TypeError] sourceName=[script in https://labserver.comp.com/mcwebadm/cgi-bin/edit_local.pl?operation=edit&return_address=%2Fmcwebadm%2Fcgi-bin%2Fmenu.pl&selected=2322020c341b11de96c3000423d43f1d from (9,32) to (840,15)] message=[TypeError: Cannot set property "disabled" of undefined to "0" (script in https://myserver.company.com/mcwebadm/cgi-bin/edit_local.pl?operation=edit&return_address=%2Fmcwebadm%2Fcgi-bin%2Fmenu.pl&selected=22020c341b11de96c3000423d43f1d from (9,15)#824)]
com.gargoylesoftware.htmlunit.ScriptException: TypeError: Cannot set property "disabled" of undefined to "0" (script in https://labserver.comp.com/mcwebadm/cgi-bin/edit_local.pl?operation=edit&return_address=%2Fmcwebadm%2Fcgi-bin%2Fmenu.pl&selected=22020c341b11de96c3000423d43f1d from (9,15)#824)
    at com.gargoylesoftware.htmlunit.javascript.JavaScriptEngine$HtmlUnitContextAction.run(JavaScriptEngine.java:534)
    at net.sourceforge.htmlunit.corejs.javascript.Context.call(Context.java:515)
    at net.sourceforge.htmlunit.corejs.javascript.ContextFactory.call(ContextFactory.java:507)
    at com.gargoylesoftware.htmlunit.javascript.JavaScriptEngine.callFunction(JavaScriptEngine.java:464)
    at com.gargoylesoftware.htmlunit.html.HtmlPage.executeJavaScriptFunctionIfPossible(HtmlPage.java:992)
    at com.gargoylesoftware.htmlunit.javascript.host.EventListenersContainer.executeEventHandler(EventListenersContainer.java:164)
    at com.gargoylesoftware.htmlunit.javascript.host.EventListenersContainer.executeBubblingListeners(EventListenersContainer.java:177)
    at com.gargoylesoftware.htmlunit.javascript.host.Node.fireEvent(Node.java:584)
    at com.gargoylesoftware.htmlunit.html.HtmlElement$2.run(HtmlElement.java:936)
    at net.sourceforge.htmlunit.corejs.javascript.Context.call(Context.java:515)
    at net.sourceforge.htmlunit.corejs.javascript.ContextFactory.call(ContextFactory.java:507)
    at com.gargoylesoftware.htmlunit.html.HtmlElement.fireEvent(HtmlElement.java:941)
    at com.gargoylesoftware.htmlunit.html.HtmlPage.executeEventHandlersIfNeeded(HtmlPage.java:1237)
    at com.gargoylesoftware.htmlunit.html.HtmlPage.initialize(HtmlPage.java:183)
    at com.gargoylesoftware.htmlunit.WebClient.loadWebResponseInto(WebClient.java:449)
    at com.gargoylesoftware.htmlunit.WebClient.getPage(WebClient.java:329)
    at com.gargoylesoftware.htmlunit.WebClient.getPage(WebClient.java:354)
    at com.gargoylesoftware.htmlunit.html.HtmlForm.submit(HtmlForm.java:179)
    at com.gargoylesoftware.htmlunit.html.HtmlSubmitInput.doClickAction(HtmlSubmitInput.java:82)
    at com.gargoylesoftware.htmlunit.html.HtmlElement.click(HtmlElement.java:1329)
    at com.gargoylesoftware.htmlunit.html.HtmlElement.click(HtmlElement.java:1288)
    at com.gargoylesoftware.htmlunit.html.HtmlElement.click(HtmlElement.java:1257)
    at TestOne.run(TestOne.java:77)
    at TestOne.main(TestOne.java:215)

最佳答案

这是导致我在正在加载的页面上出现javascript错误.
我设定

webClient.getOptions().setThrowExceptionOnScriptError(false);

但它仍然引发了异常.

解决方案：如果您捕获ScriptException,则页面仍处于完全加载状态,您可以继续处理并忽略该异常.

失败的HTML示例：

<html>
<Head><title>JS Test</title>
    <script type="text/javascript">
        function run_js()
        {
                form.myinput.value = "from on body";
//              document.myform.myinput.value = "from body";
        }
        </script>   
    </head>

<body onload="run_js()">
    The Body.
    <form name="myform">
        <input name="myinput" type="text"/>
    </form>
</body>
</html>

HtmlUnit属性未定义的脚本错误

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