Selenium chromedriver 用于从网页中检索下拉表数据的当前值并导出到 csv 文件中
[英]Selenium chromedriver for retrieving current value of dropdown table <tbody> data from a Webpage and export in csv file
问题描述
table structure for web Url is below.
网址的表结构如下。
<body>
<div class="marketData-inputSelect">
<select class="js-select js-optionsDataFilter">
<option value="total_volume">Total Options</option>
<option value="equity_volume">Equity Options</option>
<option value="index_volume">Index/Other Options</option>
</select>
</div>
<table class="marketData-table marketData-table--active marketData-table--border marketData-table--padded marketData-table--auto table-responsive">
<span class="table-head__cond">
<thead>
<tr class="marketData-tableRow">
<th class="marketData-tableHeading"><span class="text">Exchange</span><!----></th>
<th class="marketData-tableHeading"><span class="text">Calls</span><!----></th>
<th class="marketData-tableHeading"><span class="text">Puts</span><!----></th>
<th class="marketData-tableHeading"><span class="text">P/C Ratio</span><!----></th>
<th class="marketData-tableHeading"><span class="text">Volume</span><!----></th>
<th class="marketData-tableHeading"><span class="text">Market Share</span><!----></th>
</tr>
</thead></span>
<tbody>
<tr class="marketData-tableRow marketData-tableRow--fill">
<td class="marketData-tableItem">AMEX</td>
<td class="marketData-tableItem">1,397,381</td>
<td class="marketData-tableItem">1,261,149</td>
<td class="marketData-tableItem">0.9</td>
<td class="marketData-tableItem">2,658,530</td>
<td class="marketData-tableItem">6.73%</td>
</tr>
</tbody><!----><!----><!---->
</table>
</body>
Code which i am trying get only first option Total Options data.我正在尝试的代码仅获取第一个选项Total Options数据。 other two option value of dropdown current <tbody> data is not getting. dropdown当前<tbody>数据的其他两个选项值未获取。 In every dropdown menu <tbody> data is different, table structure is same for all three menu only data is different.在每个下拉菜单中， <tbody>数据不同，所有三个菜单的表结构相同，只是数据不同。 can you please help me to amended the code for get current value of dropdown menu Thanks in advance!你能帮我修改代码以get current value of dropdown menu在此先感谢！
var dropdownText = driver.FindElement(By.XPath("//select"));
var dropdownSelect = new SelectElement(dropdownText);
var dropdownSelectvalue = dropdownSelect.SelectedOption.GetAttribute("value");
if (driver.FindElement(By.XPath("//table/span/thead/tr/th")).Displayed)
{
IWebElement webElementHead = driver.FindElement(By.XPath("//table/span/thead/tr"));
IList<IWebElement> ElementCollectionHead = webElementHead.FindElements(By.XPath("//table/span/thead/tr/th"));
foreach (IWebElement item in ElementCollectionHead)
{
Console.WriteLine(item.Text);
}
}
if (driver.FindElement(By.XPath("//table/tbody/tr")).Displayed)
{
IWebElement webElementBody = driver.FindElement(By.XPath("//table/tbody/tr"));
IList<IWebElement> ElementCollectionBody = webElementBody.FindElements(By.XPath("//table/tbody/tr"));
foreach (IWebElement item in ElementCollectionBody)
{
string[] arr = new string[4];
arr = item.Text.Split(' ');
for (int i = 0; i < arr.Length; i++)
{
Console.WriteLine(arr[i]);
}
}
}
I am trying to displaying all data in Console for Total Options successfully.我正在尝试在Console中成功显示所有数据以获取Total Options 。 can you please store the data in .csv file what I am searching we can do using FileStream but not able succeed.您能否store the data在.csv文件中，我正在搜索我们可以使用FileStream执行但无法成功。
FileStream fs =new FileStream((".csv"),FileMode.Create);
StreamWriter sw=new StreamWriter(fs);
sw.WriteLine();
sw.Close();
sw.Dispose();
Not sure about above FileStream Code.不确定上面的FileStream代码。
2 个解决方案
解决方案1
0 2022-12-14 14:34:47
You should look into HTMLAglityPack.你应该看看 HTMLAgityPack。 With HTMLAglityPack I would load the driver.Pagesouce into a new HTML Document and then do something like: var marketData = html.DocumentNode.SelectNodes("//td[@marketData-tableItem']");使用 HTMLAgityPack，我会将 driver.Pagesouce 加载到一个新的 HTML 文档中，然后执行如下操作： var marketData = html.DocumentNode.SelectNodes("//td[@marketData-tableItem']"); . . Then you can run a for loop on the market data: foreach(var data in marketData){string x = data.innerText;}然后您可以对市场数据运行 for 循环： foreach(var data in marketData){string x = data.innerText;}
解决方案2
0 2022-12-14 16:29:44
The below code is in Java, modify this code to C#, but you can use these same locators:下面的代码是用 Java 编写的，将此代码修改为 C#，但您可以使用这些相同的定位器：
driver.get("<URL>");
// to accept cookies
driver.findElement(By.xpath(".//*[text()='Accept analytic cookies']")).click();
// to click on the view button
driver.findElement(By.cssSelector(".marketData-inputBtn")).click();
// to print the headings
List<WebElement> headings = driver.findElements(By.xpath("(.//*[@class='marketData-resultsSection'])[2]//th/span"));
for (WebElement ele : headings) {
System.out.print(ele.getText() + " | ");
}
System.out.println();
// to print the data
List<WebElement> data = driver.findElements(By.xpath("(.//*[@class='marketData-resultsSection'])[2]//td"));
int i = 0;
for (WebElement ele : data) {
i++;
System.out.print(ele.getText() + " | ");
if (i == 6) {
i = 0;
System.out.println();
}
}
Output:输出：
Exchange | Calls | Puts | P/C Ratio | Volume | Market Share |
AMEX | 1,829,955 | 1,645,962 | 0.9 | 3,475,917 | 7.23% |
...
...
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