使用Selenium Web Driver检索HTML输入的值

In the HTML of a webapp there is the following code

在webapp的HTML中，有以下代码

<input type="text" name="prettyTime" id="prettyTime" class="ui-state-disabled prettyTime"  readonly="readonly">

What is actually shown on the page is a string displaying the time.

页面上实际显示的是显示时间的字符串。

In Selenium Web Driver, I have a WebElement object referring to the <input> using

在Selenium Web Driver中，我有一个引用的WebElement对象

WebElement timeStamp = waitForElement(By.id("prettyTime"));

I want to get the value of the WebElement, or, in other words, what is printed on the page. I tried all the WebElement getters and nothing has been retrieving the actual value that the user sees. Any help? Thanks.

我想获取WebElement的值，或者换句话说，获取页面上打印的内容。我尝试了所有WebElement getter，并没有检索到用户看到的实际值。有帮助吗？谢谢。

8 个解决方案

#1

146

Try element.getAttribute("value")

尝试element.getAttribute（“value”）

The text property is for text within the tags of an element. For input elements, the displayed text is not wrapped by the <input> tag, instead it's inside the value attribute.

text属性用于元素标记内的文本。对于输入元素，显示的文本不会被标记包装，而是在value属性中。

Note: Case matters. If you specify "Value", you'll get a 'null' value back. This is true for C# at least.

注意：案件很重要。如果指定“Value”，则会返回“null”值。这至少对C＃来说是这样的。

#2

You can do like this :

你可以这样做：

webelement time=driver.findElement(By.id("input_name")).getAttribute("value");

this will give you the time displaying on the webpage.

这将为您提供在网页上显示的时间。

#3

With selenium 2,

用硒2，

i usually write it like that :

我通常这样写：

WebElement element = driver.findElement(By.id("input_name"));
String elementval = element.getAttribute("value");

要么

String elementval = driver.findElement(By.id("input_name")).getAttribute("value");

#4

Following @ragzzy 's answer I use

按照@ragzzy的回答我用

 public static string Value(this IWebElement element, IJavaScriptExecutor javaScriptExecutor)
    {

        try
        {
            string value = javaScriptExecutor.ExecuteScript("return arguments[0].value", element) as string;
            return value;
        }
        catch (Exception)
        {
            return null;
        }
    }

It works quite well and does not alter the DOM

它工作得很好，不会改变DOM

#5

As was mentioned before, you could do something like that

如前所述，你可以做那样的事情

public String getVal(WebElement webElement) {
    JavascriptExecutor e = (JavascriptExecutor) driver;
    return (String) e.executeScript(String.format("return $('#%s').val();", webElement.getAttribute("id")));
}

But as you can see, your element must have an id attribute, and also, jquery on your page.

但正如您所看到的，您的元素必须具有id属性，并且页面上还有jquery。

#6

If the input value gets populated by a script that has some latency involved (e.g. AJAX call) then you need to wait until the input has been populated. E.g.

如果输入值由一个涉及一些延迟的脚本填充（例如AJAX调用），那么您需要等到输入已填充。例如。

var w = new WebDriverWait(WebBrowser, TimeSpan.FromSeconds(10));
            w.Until((d) => {
                // Wait until the input has a value...

                var elements = d.FindElements(By.Name(name));

                var ele = elements.SingleOrDefault();

                if (ele != null)
                {
                    // Found a single element

                    if (ele.GetAttribute("value") != "")
                    {
                        // We have a value now
                        return true;
                    }
                }

                return false;
                });

        var e = WebBrowser.Current.FindElement(By.Name(name));

        if (e.GetAttribute("value") != value)
        {
            Assert.Fail("Result contains a field named '{0}', but its value is '{1}', not '{2}' as expected", name, e.GetAttribute("value"), value);
        }

#7

This is kind of hacky, but it works.

这有点像hacky，但它确实有效。

I used JavascriptExecutor and added a div to the HTML, and changed the text in the div to $('#prettyTime').val() I then used Selenium to retrieve the div and grab its value. After testing the correctness of the value, I removed the div that was just created.

我使用了JavascriptExecutor并在HTML中添加了div，并将div中的文本更改为$（'＃prettyTime'）。val（）然后我使用Selenium检索div并获取其值。在测试了值的正确性后，我删除了刚刚创建的div。

#8

For python bindings it will be :

对于python绑定，它将是：

element.get_attribute('value')

#1

146