Selenium Webdriver 获取已经具有 value 属性的输入值 (Java) [英] Selenium Webdriver get input value which already has value attribute (Java)

问题描述

我需要解析一个包含输入元素的表格.使用 Selenium WebDriver 获取输入元素列表以提取其值:

I need to parse a table containing input elements in it. Using Selenium WebDriver I get the list of input elements to extract their values:

@FindBy(xpath = "xpathSelector")
private List<WebElement> table;

我有一个输入元素的例子:

An example of input element I have:

<input id="pt1:r1:3:detailTable:1:j_idt680::content"
name="pt1:r1:3:detailTable:1:j_idt680" style="text-align: right;color:#333333;"
class="af_inputText_content" type="text" value="1,000.00">

遍历输入网络元素，我需要获取每个值.

Iterating through input web elements I need to get each value.

List<String> inputValues = new ArrayList<>();
for (WebElement input : table) {
    inputValues.add(getValue(input));
}

我可以使用

input.getAttribute("value");

但这不起作用，因为输入元素已经有一个定义的属性值".

But this doesn't work because input elements already have a defined attribute "value".

我发现在这种情况下我可以使用 JavaScript.这是我正在尝试的代码:

I found out that in this case I can use JavaScript. This is the code I'm trying:

public String getValue(input) {
    JavascriptExecutor js = (JavascriptExecutor) driver;
    return js.executeScript("return arguments[0].value", element).toString();
}

但我得到的不是真正的值，而是 脏"，这没有任何意义.

But instead of real values I get "dirty" which doesn't make any sense.

我能够使用以下方法在调试器模式下获得实际值:

I was able to get the real value in debugger mode using:

((JavascriptExecutor)driver).executeScript("return document.evaluate(\"xpathSelector\",
document, null, XPathResult.FIRST_ORDERED_NODE_TYPE,null).singleNodeValue.value")
.toString()

如何使用 Selenium Webdriver WebElements 已经找到的方法通过 JavascriptExecutor 获取值?

How can I get values through JavascriptExecutor using already found by Selenium Webdriver WebElements?

更新:我找到了使用 css 选择器解决此问题的方法，但我不喜欢它:

UPDATE: I found a workaround for the issue using css selector but I don't like it:

    public String getNthInputValueByCss(String cssSelector, int elementNumber) {
    String jsScript = String.format("return document.querySelectorAll(\"%s\")[%d].value", cssSelector, elementNumber);
    JavascriptExecutor js = (JavascriptExecutor) driver;
    return js.executeScript(jsScript).toString();
}

推荐答案

我的进一步研究使我找到了使用 cssSelector 的解决方案.

My further research lead me to a solution with the use of cssSelector.

从文档到 Selenium WebDriver executeScript(String script, Object... args) 方法:

From the documentation to Selenium WebDriver executeScript(String script, Object... args) method:

这些参数将通过参数"魔法变量，就好像函数是通过函数.应用"

The arguments will be made available to the JavaScript via the "arguments" magic variable, as if the function were called via "Function.apply"

参数必须是数字、布尔值、字符串、WebElement 或列表以上任意组合.

Arguments must be a number, a boolean, a String, WebElement, or a List of any combination of the above.

@param args 脚本的参数.可能为空

@param args The arguments to the script. May be empty

解决方案:

因此我们可以将我们的 WebElement 元素 作为 executeScript() 方法的参数之一传递，然后使用该参数在我们的 element<的子元素中进行搜索/代码>.

So we can pass our WebElement element as one of the arguments of executeScript() method and then use the argument to search among children of our element.

protected String getInputValue(WebElement element) {
    String js = "return arguments[0].querySelector('input').value";
    JavascriptExecutor js = (JavascriptExecutor) driver;
    return js.executeScript(js, element).toString();
}

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