Question

RSelenium和xpaths的新手，尽管有人对这个主题提出了一些问题，但我似乎无法让它对我有用。我正在尝试下载名为＆＃34;兴趣随时间变化的第一个小部件的CSV文件＆＃34;。此选项没有唯一的ID /类等，但它是类＆＃34; widget-actions-item＆＃34;中的第三个，其中类＆＃34; widget-actions-item-text＆＃34;包含＆＃34; CSV＆＃34;。

library(RSelenium)
library(wdman)
driver <- rsDriver(browser = "firefox")  
remDr <- driver[["client"]]
remDr$open
remDr$navigate("http://trends.google.com/trends/explore?cat=3")
webElem1 <- remDr$findElement("class name", "widget-actions-menu")
webElem1$clickElement()

以上代码翻转打开网页和第一个小部件菜单，其中包含三个下载选项，其中一个是CSV。

webElem2 <- remDr$findElement("xpath", paste0("//div[@class='widget-actions-content']//[@class='widget-actions-item'][3]"))
webElem2$clickElement()

驱动程序无法找到此元素。

<div class="widget-actions-content" ng-show="widgetActions.menuOpen" aria-hidden="false" style="">
  <!----><button class="widget-actions-item" ng-if="showActionButton()" ng-click="embed()" title="Embed" track="['Widget', type, 'Embed']" ve-tracking="" jslog="39389; track:generic_click">
    <span class="widget-actions-item-icon embed-image flip-rtl"></span>
    <div class="widget-actions-item-text">
      Embed
    </div>
  </button><!---->
  <!----><button class="widget-actions-item" ng-if="isEditor || share" ng-click="share()" title="Share" track="['Widget', type, 'Share']" ve-tracking="" jslog="39390; track:generic_click">
    <span class="widget-actions-item-icon share-image flip-rtl"></span>
    <div class="widget-actions-item-text">
      Share
    </div>
  </button><!---->
  <!----><button class="widget-actions-item" ng-if="isEditor || (export &amp;&amp; showActionButton())" ng-click="export()" title="CSV" track="['Widget', type, 'Export']" ve-tracking="" jslog="39388; track:generic_click">
    <span class="widget-actions-item-icon csv-image flip-rtl"></span>
    <div class="widget-actions-item-text">
      CSV
    </div>
  </button><!---->
  <help-dialog ng-show="!$root.globals.isDesktopMode &amp;&amp; helpDialog" class="widget-actions-item ng-hide" show-annotation="true" data="helpDialog" aria-hidden="true"><button class="help-icon-button" ng-click="openDialog()" title="Help">
  <i class="material-icons-extended help-icon-color">help_outline</i>
  <div class="widget-actions-item-text" ng-show="showAnnotation" aria-hidden="false">
    Help
  </div>
</button>
</help-dialog>
</div>

Answer 1

其中任何一个都可行：

//button[contains(.,'CSV')]

//button[div[@class='widget-actions-item-text'][contains(text(),'CSV')]]

//button[div[@class='widget-actions-item-text' and contains(text(),'CSV')]]

//button[@title='CSV']

使用xpath（RSelenium）查找嵌套div

1 个答案: