Question

我有一个按钮（超链接），其等效的HTML代码如下：

<span title="Enroll in Classes" class="SSSBUTTON_CONFIRMLINK">
<a class="SSSBUTTON_CONFIRMLINK" href="javascript:submitAction_win0(document.win0,'DERIVED_REGFRM1_LINK_ADD_ENRL$118$');" tabindex="202" ptlinktgt="pt_peoplecode" id="DERIVED_REGFRM1_LINK_ADD_ENRL$118$" name="DERIVED_REGFRM1_LINK_ADD_ENRL$118$">Proceed to Step 2 of 3</a>
</span>

我想在页面加载10秒后点击按钮，我使用以下代码：

// ==UserScript==
// @name        Add to cart
// @namespace   Class
// @description Script to add to cart
// @include     http://go.oasis.com/add/?STRM=2141
// @version     1
// @grant       none
// ==/UserScript==

setInterval (clickOnProceedButton, 10 * 1000)

function clickOnProceedButton () {
    var targSubmit  = $("#DERIVED_REGFRM1_LINK_ADD_ENRL$118$");
    var clickEvent  = document.createEvent ('MouseEvents');
    clickEvent.initEvent ('click', true, true);
    targSubmit[0].dispatchEvent (clickEvent);
}

上述脚本无效，不会点击按钮。有人可以指出这里有什么问题吗？

编辑：我在控制台中收到以下错误

ERROR: Execution of script 'Add to cart' failed! Object [object global] has no method 'clickOnProceedButton'
TypeError: Object [object global] has no method 'clickOnProceedButton'
    at Object.eval (unknown source)), 25:14)
    at Object.eval (unknown source)), 27:4)
    at ag (unknown source), 190:4)
    at K (unknown source), 190:46)
    at o (unknown source), 456:2)
    at U (unknown source), 460:85)
    at R (unknown source), 229:40)

提前致谢！

Answer 1

在谷歌浏览器中完美运作，但未在 IE8

中工作

JSFiddle

<强> HTML：

<a  href="https://google.com"  id="DERIVED_REGFRM1_LINK_ADD_ENRL$118$" >Proceed to Step 2 of 3</a>

<强> JS：

function clickOnProceedButton () {
var targSubmit  =  document.getElementById("DERIVED_REGFRM1_LINK_ADD_ENRL$118$");
var clickEvent  = document.createEvent('MouseEvents');
clickEvent.initEvent ('click', true, true);
targSubmit.dispatchEvent(clickEvent);

}

可能会帮到你。

Answer 2

setInterval(clickOnProceedButton, 10 * 1000);
function clickOnProceedButton() {
    var link = document.getElementById("DERIVED_REGFRM1_LINK_ADD_ENRL$118$");
    if(link) {
        link.click();
    }
}

Demo

无法使用Greasemonkey单击此超链接

2 个答案: