尝试使用CasperJS在iframe中跟踪链接 [英] Trying to follow a link in an iframe using CasperJS

问题描述

我正在尝试使用 CasperJS 跟随iframe中的链接，但我无法

I'm trying to use CasperJS to follow a link that's in an iframe but I can't seem to get at the iframe's document.

这里是使用我发现的iframe示例页面进行的测试。
第三个iframe具有name属性，Casper的frame方法需要该属性。 Casper API

Here's a test using an iframe example page I found. The third iframe has a name attribute which I need for Casper's frame method. Casper API

var casper = require('casper').create();

casper.start('http://nunzioweb.com/iframes-example.htm');

casper.withFrame('frame', function(){
  this.echo('Page url is ' + this.getCurrentUrl());
  this.echo(this.getHTML());
});

casper.run();

页面网址返回 http://nunzioweb.com/lyrics/455Rocket.html就像我期望的那样，但是返回的html是包裹iframe的页面。

The page url comes back with "http://nunzioweb.com/lyrics/455Rocket.html" as I expected but the returned html is the page wrapping the iframe.

任何想法我都可以进入iframe以便点击[我在页面上m实际上是用]来完成的？？

Any idea how I can get into the iframe so I can click a link [on the page I'm actually doing this with]?

推荐答案

由于某些原因 .getHTML（）在这里不起作用，您必须直接从 WebPage 实例获取页面HTML
。

For some reason .getHTML() doesn't work here, you have to get the page HTML directly from the WebPage instance.

var casper = require('casper').create();

casper.start('http://nunzioweb.com/iframes-example.htm');

casper.withFrame('frame', function(){
    this.echo('Page url is ' + this.getCurrentUrl());
    this.echo(this.page.content);
});

casper.run();

我将致力于解决这个问题。

I'll be working on that issue.

单击链接，例如。在您的iframe示例中的光滑城市上：

To click on a link, eg. on the Slick City one in your iframe example:

var casper = require('casper').create();

casper.start('http://nunzioweb.com/iframes-example.htm');

casper.withFrame('frame', function() {
    this.echo('Page url is ' + this.getCurrentUrl());
    this.clickLabel('Slick City');
});

casper.waitForPopup('slickcitydown.htm').withPopup('slickcitydown.htm', function() {
    this.echo('New page url is ' + this.getCurrentUrl());
});

casper.run();

得出：

$ casperjs test.js 
Page url is http://nunzioweb.com/lyrics/455Rocket.html
New page url is http://nunzioweb.com/slickcitydown.htm

这篇关于尝试使用CasperJS在iframe中跟踪链接的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！