使用Selenium读表

Question

尝试使用selenium阅读下表时遇到困难。

HTML

定位器如下

import pandas as pd from bokeh.plotting import Figure from bokeh.models import ColumnDataSource, TextInput, Button, Panel, Tabs, Label, DataTable, TableColumn from bokeh.layouts import Row, Column, widgetbox from bokeh.io import curdoc, show, output_notebook, gridplot from sqlalchemy import create_engine engine = create_engine('postgresql+psycopg2://username:password@domain.local:5432/dbname') def main(): layout = gridplot([[retreive_descriptions()]]) curdoc().add_root(layout) def retreive_descriptions(): df = pd.read_sql(sql='SELECT description from public."Description_Categories" WHERE category=\'Unknown\'', con=engine) cds = ColumnDataSource(df) columns = [TableColumn(field='description', title='Description'),TableColumn(field='category', title='Category')] cat_data = DataTable(source=cds, columns=columns, editable=True) return cat_data

@FindBy(css = "table.table-bordered.table-striped") private WebElement storesTable;

运行代码时行数为0。非常感谢任何帮助。

Answer 1

原因是：您提供的TagName无效"/tbody/tr"加上您需要更改storesTable，因为tr位于tbody下面}：

@FindBy(css = "table.table-bordered.table-striped > tbody")
private WebElement storesTable;

并在更改tagName后：

List<WebElement> storeRows = storesTable.findElements(By.tagName("tr"));

Answer 2

您提供xpath代替tagName。

如果你想使用下面的标记名是语句

List<WebElement> storeRows = storesTable.findElements(By.tagName("tr"));

否则，如果你想使用下面的xpath是声明。

List<WebElement> storeRows = storesTable.findElements(By.xpath(".//tbody/tr"));