使用Python Selenium遍历表行并打印列文本

Question

我有一个表(<table>)，表主体(<tbody>)的每一行(<tr>)都有值。

我想打印出来的值在<div>标记内的<span>中。

查看html，我看到了值，例如"Name“位于第1行(tr1)，第2列(td2)：

<tr class="GAT4PNUFG GAT4PNUMG" __gwt_subrow="0" __gwt_row="0">
            <td class="GAT4PNUEG GAT4PNUGG GAT4PNUHG GAT4PNUNG">
            <td class="GAT4PNUEG GAT4PNUGG GAT4PNUNG">
                <div __gwt_cell="cell-gwt-uid-324" style="outline-style:none;">
                    <span class="linkhover" title="Name" style="white-space:nowrap;overflow:hidden;text-overflow:ellipsis;empty-cells:show;display:block;color:#00A;cursor:pointer;">Name</span>
                </div>
            </td>

我想遍历表格的每一行，并打印出第2列，td2中的值

我正在使用Python和Selenium Webdriver

表第1行、第2列的完整Xpath为：

html/body/div[2]/div[2]/div/div[4]/div/div[2]/div/div[3]/div/div[5]/div/div[3]/div/div[4]/div/div[2]/div/div[4]/div/div[3]/div/div[2]/div/div/table/tbody/tr[1]/td[2]/div/span

我在想，如果我可以从表xpath开始，如下所示：

html/body/div[2]/div[2]/div/div[4]/div/div[2]/div/div[3]/div/div[5]/div/div[3]/div/div[4]/div/div[2]/div/div[4]/div/div[3]/div/div[2]/div/div/table/tbody

然后，我可以使用for循环，并使用tr和td的索引，例如，对于row1使用tri，对于col2使用td2。

html/body/div[2]/div[2]/div/div[4]/div/div[2]/div/div[3]/div/div[5]/div/div[3]/div/div[4]/div/div[2]/div/div[4]/div/div[3]/div/div[2]/div/div/table/tbody/tr[i]/td[2]/div/span

如何遍历该表并打印出Span类标记的值，该值始终位于表的第2列？

我尝试将表的开始部分放入一个变量中，然后我可能会使用它来遍历行和列。我需要一些帮助。

table = self.driver.find_element(By.XPATH, 'html/body/div[2]/div[2]/div/div[4]/div/div[2]/div/div[3]/div/div[5]/div/div[3]/div/div[4]/div/div[2]/div/div[4]/div/div[3]/div/div[2]/div/div/table/tbody')

下面是完整的HTML：

    <table cellspacing="0" style="table-layout: fixed; width: 100%;">
    <colgroup>
    <tbody>
        <tr class="GAT4PNUFG GAT4PNUMG" __gwt_subrow="0" __gwt_row="0">
            <td class="GAT4PNUEG GAT4PNUGG GAT4PNUHG GAT4PNUNG">
            <td class="GAT4PNUEG GAT4PNUGG GAT4PNUNG">
                <div __gwt_cell="cell-gwt-uid-324" style="outline-style:none;">
                    <span class="linkhover" title="Name" style="white-space:nowrap;overflow:hidden;text-overflow:ellipsis;empty-cells:show;display:block;color:#00A;cursor:pointer;">Name</span>
                </div>
            </td>
            <td class="GAT4PNUEG GAT4PNUGG GAT4PNUNG">
            <td class="GAT4PNUEG GAT4PNUGG GAT4PNUNG">
            <td class="GAT4PNUEG GAT4PNUGG GAT4PNUNG">
            <td class="GAT4PNUEG GAT4PNUGG GAT4PNUBH GAT4PNUNG">
        </tr>
        <tr class="GAT4PNUEH" __gwt_subrow="0" __gwt_row="1">
            <td class="GAT4PNUEG GAT4PNUFH GAT4PNUHG">
            <td class="GAT4PNUEG GAT4PNUFH">
                <div __gwt_cell="cell-gwt-uid-324" style="outline-style:none;">
                    <span class="linkhover" title="Address" style="white-space:nowrap;overflow:hidden;text-overflow:ellipsis;empty-cells:show;display:block;color:#00A;cursor:pointer;">Address</span>
                </div>
            </td>
            <td class="GAT4PNUEG GAT4PNUFH">
            <td class="GAT4PNUEG GAT4PNUFH">
            <td class="GAT4PNUEG GAT4PNUFH">
            <td class="GAT4PNUEG GAT4PNUFH GAT4PNUBH">
        </tr>
        <tr class="GAT4PNUFG" __gwt_subrow="0" __gwt_row="2">
            <td class="GAT4PNUEG GAT4PNUGG GAT4PNUHG">
            <td class="GAT4PNUEG GAT4PNUGG">
                <div __gwt_cell="cell-gwt-uid-324" style="outline-style:none;">
                    <span class="linkhover" title="DOB" style="white-space:nowrap;overflow:hidden;text-overflow:ellipsis;empty-cells:show;display:block;color:#00A;cursor:pointer;">DOB</span>
                </div>
            </td>
            <td class="GAT4PNUEG GAT4PNUGG">
            <td class="GAT4PNUEG GAT4PNUGG">
            <td class="GAT4PNUEG GAT4PNUGG">
            <td class="GAT4PNUEG GAT4PNUGG GAT4PNUBH">
        </tr>
        <tr class="GAT4PNUEH" __gwt_subrow="0" __gwt_row="3">
            ---
        <tr class="GAT4PNUFG" __gwt_subrow="0" __gwt_row="4">       
            ---
    </tbody>
</table>

Answer 1

开发人员已将ID放入表中。我现在让它工作了。它将打印第2列中的所有单元格值。代码为：

table_id = self.driver.find_element(By.ID, 'data_configuration_feeds_ct_fields_body0')
rows = table_id.find_elements(By.TAG_NAME, "tr") # get all of the rows in the table
for row in rows:
    # Get the columns (all the column 2)        
    col = row.find_elements(By.TAG_NAME, "td")[1] #note: index start from 0, 1 is col 2
    print col.text #prints text from the element

Answer 2

您当前使用的XPath非常脆弱，因为它依赖于完整的文档结构和元素的相对位置。它在未来很容易就会崩溃。

相反，可以使用行的class或其他属性来定位行。例如：

for row in driver.find_elements_by_css_selector("tr.GAT4PNUFG.GAT4PNUMG"):
    cell = row.find_elements_by_tag_name("td")[1]
    print(cell.text)